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Initial vendor packages

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Signed-off-by: Valentin Popov <valentin@popov.link>
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Valentin Popov 2024-01-08 01:21:28 +04:00
parent 5ecd8cf2cb
commit 1b6a04ca55
Signed by: Valentin Popov
GPG Key ID: AE3CE523DAAA8401
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.cargo/config.toml Normal file
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[source.crates-io]
replace-with = "vendored-sources"
[source.vendored-sources]
directory = "vendor"

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# `addr2line` Change Log
--------------------------------------------------------------------------------
## 0.21.0 (2023/08/12)
### Breaking changes
* Updated `gimli`, `object`, and `fallible-iterator` dependencies.
### Changed
* The minimum supported rust version is 1.65.0.
* Store boxed slices instead of `Vec` objects in `Context`.
[#278](https://github.com/gimli-rs/addr2line/pull/278)
--------------------------------------------------------------------------------
## 0.20.0 (2023/04/15)
### Breaking changes
* The minimum supported rust version is 1.58.0.
* Changed `Context::find_frames` to return `LookupResult`.
Use `LookupResult::skip_all_loads` to obtain the result without loading split DWARF.
[#260](https://github.com/gimli-rs/addr2line/pull/260)
* Replaced `Context::find_dwarf_unit` with `Context::find_dwarf_and_unit`.
[#260](https://github.com/gimli-rs/addr2line/pull/260)
* Updated `object` dependency.
### Changed
* Fix handling of file index 0 for DWARF 5.
[#264](https://github.com/gimli-rs/addr2line/pull/264)
### Added
* Added types and methods to support loading split DWARF:
`LookupResult`, `SplitDwarfLoad`, `SplitDwarfLoader`, `Context::preload_units`.
[#260](https://github.com/gimli-rs/addr2line/pull/260)
[#262](https://github.com/gimli-rs/addr2line/pull/262)
[#263](https://github.com/gimli-rs/addr2line/pull/263)
--------------------------------------------------------------------------------
## 0.19.0 (2022/11/24)
### Breaking changes
* Updated `gimli` and `object` dependencies.
--------------------------------------------------------------------------------
## 0.18.0 (2022/07/16)
### Breaking changes
* Updated `object` dependency.
### Changed
* Fixed handling of relative path for `DW_AT_comp_dir`.
[#239](https://github.com/gimli-rs/addr2line/pull/239)
* Fixed handling of `DW_FORM_addrx` for DWARF 5 support.
[#243](https://github.com/gimli-rs/addr2line/pull/243)
* Fixed handling of units that are missing range information.
[#249](https://github.com/gimli-rs/addr2line/pull/249)
--------------------------------------------------------------------------------
## 0.17.0 (2021/10/24)
### Breaking changes
* Updated `gimli` and `object` dependencies.
### Changed
* Use `skip_attributes` to improve performance.
[#236](https://github.com/gimli-rs/addr2line/pull/236)
--------------------------------------------------------------------------------
## 0.16.0 (2021/07/26)
### Breaking changes
* Updated `gimli` and `object` dependencies.
--------------------------------------------------------------------------------
## 0.15.2 (2021/06/04)
### Fixed
* Allow `Context` to be `Send`.
[#219](https://github.com/gimli-rs/addr2line/pull/219)
--------------------------------------------------------------------------------
## 0.15.1 (2021/05/02)
### Fixed
* Don't ignore aranges with address 0.
[#217](https://github.com/gimli-rs/addr2line/pull/217)
--------------------------------------------------------------------------------
## 0.15.0 (2021/05/02)
### Breaking changes
* Updated `gimli` and `object` dependencies.
[#215](https://github.com/gimli-rs/addr2line/pull/215)
* Added `debug_aranges` parameter to `Context::from_sections`.
[#200](https://github.com/gimli-rs/addr2line/pull/200)
### Added
* Added `.debug_aranges` support.
[#200](https://github.com/gimli-rs/addr2line/pull/200)
* Added supplementary object file support.
[#208](https://github.com/gimli-rs/addr2line/pull/208)
### Fixed
* Fixed handling of Windows paths in locations.
[#209](https://github.com/gimli-rs/addr2line/pull/209)
* examples/addr2line: Flush stdout after each response.
[#210](https://github.com/gimli-rs/addr2line/pull/210)
* examples/addr2line: Avoid copying every section.
[#213](https://github.com/gimli-rs/addr2line/pull/213)
--------------------------------------------------------------------------------
## 0.14.1 (2020/12/31)
### Fixed
* Fix location lookup for skeleton units.
[#201](https://github.com/gimli-rs/addr2line/pull/201)
### Added
* Added `Context::find_location_range`.
[#196](https://github.com/gimli-rs/addr2line/pull/196)
[#199](https://github.com/gimli-rs/addr2line/pull/199)
--------------------------------------------------------------------------------
## 0.14.0 (2020/10/27)
### Breaking changes
* Updated `gimli` and `object` dependencies.
### Fixed
* Handle units that only have line information.
[#188](https://github.com/gimli-rs/addr2line/pull/188)
* Handle DWARF units with version <= 4 and no `DW_AT_name`.
[#191](https://github.com/gimli-rs/addr2line/pull/191)
* Fix handling of `DW_FORM_ref_addr`.
[#193](https://github.com/gimli-rs/addr2line/pull/193)
--------------------------------------------------------------------------------
## 0.13.0 (2020/07/07)
### Breaking changes
* Updated `gimli` and `object` dependencies.
* Added `rustc-dep-of-std` feature.
[#166](https://github.com/gimli-rs/addr2line/pull/166)
### Changed
* Improve performance by parsing function contents lazily.
[#178](https://github.com/gimli-rs/addr2line/pull/178)
* Don't skip `.debug_info` and `.debug_line` entries with a zero address.
[#182](https://github.com/gimli-rs/addr2line/pull/182)
--------------------------------------------------------------------------------
## 0.12.2 (2020/06/21)
### Fixed
* Avoid linear search for `DW_FORM_ref_addr`.
[#175](https://github.com/gimli-rs/addr2line/pull/175)
--------------------------------------------------------------------------------
## 0.12.1 (2020/05/19)
### Fixed
* Handle units with overlapping address ranges.
[#163](https://github.com/gimli-rs/addr2line/pull/163)
* Don't assert for functions with overlapping address ranges.
[#168](https://github.com/gimli-rs/addr2line/pull/168)
--------------------------------------------------------------------------------
## 0.12.0 (2020/05/12)
### Breaking changes
* Updated `gimli` and `object` dependencies.
* Added more optional features: `smallvec` and `fallible-iterator`.
[#160](https://github.com/gimli-rs/addr2line/pull/160)
### Added
* Added `Context::dwarf` and `Context::find_dwarf_unit`.
[#159](https://github.com/gimli-rs/addr2line/pull/159)
### Changed
* Removed `lazycell` dependency.
[#160](https://github.com/gimli-rs/addr2line/pull/160)
--------------------------------------------------------------------------------
## 0.11.0 (2020/01/11)
### Breaking changes
* Updated `gimli` and `object` dependencies.
* [#130](https://github.com/gimli-rs/addr2line/pull/130)
Changed `Location::file` from `Option<String>` to `Option<&str>`.
This required adding lifetime parameters to `Location` and other structs that
contain it.
* [#152](https://github.com/gimli-rs/addr2line/pull/152)
Changed `Location::line` and `Location::column` from `Option<u64>`to `Option<u32>`.
* [#156](https://github.com/gimli-rs/addr2line/pull/156)
Deleted `alloc` feature, and fixed `no-std` builds with stable rust.
Removed default `Reader` parameter for `Context`, and added `ObjectContext` instead.
### Added
* [#134](https://github.com/gimli-rs/addr2line/pull/134)
Added `Context::from_dwarf`.
### Changed
* [#133](https://github.com/gimli-rs/addr2line/pull/133)
Fixed handling of units that can't be parsed.
* [#155](https://github.com/gimli-rs/addr2line/pull/155)
Fixed `addr2line` output to match binutils.
* [#130](https://github.com/gimli-rs/addr2line/pull/130)
Improved `.debug_line` parsing performance.
* [#148](https://github.com/gimli-rs/addr2line/pull/148)
[#150](https://github.com/gimli-rs/addr2line/pull/150)
[#151](https://github.com/gimli-rs/addr2line/pull/151)
[#152](https://github.com/gimli-rs/addr2line/pull/152)
Improved `.debug_info` parsing performance.
* [#137](https://github.com/gimli-rs/addr2line/pull/137)
[#138](https://github.com/gimli-rs/addr2line/pull/138)
[#139](https://github.com/gimli-rs/addr2line/pull/139)
[#140](https://github.com/gimli-rs/addr2line/pull/140)
[#146](https://github.com/gimli-rs/addr2line/pull/146)
Improved benchmarks.
--------------------------------------------------------------------------------
## 0.10.0 (2019/07/07)
### Breaking changes
* [#127](https://github.com/gimli-rs/addr2line/pull/127)
Update `gimli`.
--------------------------------------------------------------------------------
## 0.9.0 (2019/05/02)
### Breaking changes
* [#121](https://github.com/gimli-rs/addr2line/pull/121)
Update `gimli`, `object`, and `fallible-iterator` dependencies.
### Added
* [#121](https://github.com/gimli-rs/addr2line/pull/121)
Reexport `gimli`, `object`, and `fallible-iterator`.
--------------------------------------------------------------------------------
## 0.8.0 (2019/02/06)
### Breaking changes
* [#107](https://github.com/gimli-rs/addr2line/pull/107)
Update `object` dependency to 0.11. This is part of the public API.
### Added
* [#101](https://github.com/gimli-rs/addr2line/pull/101)
Add `object` feature (enabled by default). Disable this feature to remove
the `object` dependency and `Context::new` API.
* [#102](https://github.com/gimli-rs/addr2line/pull/102)
Add `std` (enabled by default) and `alloc` features.
### Changed
* [#108](https://github.com/gimli-rs/addr2line/issues/108)
`demangle` no longer outputs the hash for rust symbols.
* [#109](https://github.com/gimli-rs/addr2line/issues/109)
Set default `R` for `Context<R>`.

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except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
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incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright [yyyy] [name of copyright owner]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
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Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

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Copyright (c) 2016-2018 The gimli Developers
Permission is hereby granted, free of charge, to any
person obtaining a copy of this software and associated
documentation files (the "Software"), to deal in the
Software without restriction, including without
limitation the rights to use, copy, modify, merge,
publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software
is furnished to do so, subject to the following
conditions:
The above copyright notice and this permission notice
shall be included in all copies or substantial portions
of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.

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# addr2line
[![](https://img.shields.io/crates/v/addr2line.svg)](https://crates.io/crates/addr2line)
[![](https://img.shields.io/docsrs/addr2line.svg)](https://docs.rs/addr2line)
[![Coverage Status](https://coveralls.io/repos/github/gimli-rs/addr2line/badge.svg?branch=master)](https://coveralls.io/github/gimli-rs/addr2line?branch=master)
A cross-platform library for retrieving per-address debug information
from files with DWARF debug information.
`addr2line` uses [`gimli`](https://github.com/gimli-rs/gimli) to parse
the debug information, and exposes an interface for finding
the source file, line number, and wrapping function for instruction
addresses within the target program. These lookups can either be
performed programmatically through `Context::find_location` and
`Context::find_frames`, or via the included example binary,
`addr2line` (named and modelled after the equivalent utility from
[GNU binutils](https://sourceware.org/binutils/docs/binutils/addr2line.html)).
# Quickstart
- Add the [`addr2line` crate](https://crates.io/crates/addr2line) to your `Cargo.toml`
- Load the file and parse it with [`addr2line::object::read::File::parse`](https://docs.rs/object/*/object/read/struct.File.html#method.parse)
- Pass the parsed file to [`addr2line::Context::new` ](https://docs.rs/addr2line/*/addr2line/struct.Context.html#method.new)
- Use [`addr2line::Context::find_location`](https://docs.rs/addr2line/*/addr2line/struct.Context.html#method.find_location)
or [`addr2line::Context::find_frames`](https://docs.rs/addr2line/*/addr2line/struct.Context.html#method.find_frames)
to look up debug information for an address
# Performance
`addr2line` optimizes for speed over memory by caching parsed information.
The DWARF information is parsed lazily where possible.
The library aims to perform similarly to equivalent existing tools such
as `addr2line` from binutils, `eu-addr2line` from elfutils, and
`llvm-symbolize` from the llvm project, and in the past some benchmarking
was done that indicates a comparable performance.
## License
Licensed under either of
* Apache License, Version 2.0 ([`LICENSE-APACHE`](./LICENSE-APACHE) or https://www.apache.org/licenses/LICENSE-2.0)
* MIT license ([`LICENSE-MIT`](./LICENSE-MIT) or https://opensource.org/licenses/MIT)
at your option.
Unless you explicitly state otherwise, any contribution intentionally submitted
for inclusion in the work by you, as defined in the Apache-2.0 license, shall be
dual licensed as above, without any additional terms or conditions.

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v <- read.table(file("stdin"))
t <- data.frame(prog=v[,1], funcs=(v[,2]=="func"), time=v[,3], mem=v[,4], stringsAsFactors=FALSE)
t$prog <- as.character(t$prog)
t$prog[t$prog == "master"] <- "gimli-rs/addr2line"
t$funcs[t$funcs == TRUE] <- "With functions"
t$funcs[t$funcs == FALSE] <- "File/line only"
t$mem = t$mem / 1024.0
library(ggplot2)
p <- ggplot(data=t, aes(x=prog, y=time, fill=prog))
p <- p + geom_bar(stat = "identity")
p <- p + facet_wrap(~ funcs)
p <- p + theme(axis.title.x=element_blank(), axis.text.x=element_blank(), axis.ticks.x=element_blank())
p <- p + ylab("time (s)") + ggtitle("addr2line runtime")
ggsave('time.png',plot=p,width=10,height=6)
p <- ggplot(data=t, aes(x=prog, y=mem, fill=prog))
p <- p + geom_bar(stat = "identity")
p <- p + facet_wrap(~ funcs)
p <- p + theme(axis.title.x=element_blank(), axis.text.x=element_blank(), axis.ticks.x=element_blank())
p <- p + ylab("memory (kB)") + ggtitle("addr2line memory usage")
ggsave('memory.png',plot=p,width=10,height=6)

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#!/bin/bash
if [[ $# -le 1 ]]; then
echo "Usage: $0 <executable> [<addresses>] REFS..."
exit 1
fi
target="$1"
shift
addresses=""
if [[ -e "$1" ]]; then
addresses="$1"
shift
fi
# path to "us"
# readlink -f, but more portable:
dirname=$(perl -e 'use Cwd "abs_path";print abs_path(shift)' "$(dirname "$0")")
# https://stackoverflow.com/a/2358432/472927
{
# compile all refs
pushd "$dirname" > /dev/null
# if the user has some local changes, preserve them
nstashed=$(git stash list | wc -l)
echo "==> Stashing any local modifications"
git stash --keep-index > /dev/null
popstash() {
# https://stackoverflow.com/q/24520791/472927
if [[ "$(git stash list | wc -l)" -ne "$nstashed" ]]; then
echo "==> Restoring stashed state"
git stash pop > /dev/null
fi
}
# if the user has added stuff to the index, abort
if ! git diff-index --quiet HEAD --; then
echo "Refusing to overwrite outstanding git changes"
popstash
exit 2
fi
current=$(git symbolic-ref --short HEAD)
for ref in "$@"; do
echo "==> Compiling $ref"
git checkout -q "$ref"
commit=$(git rev-parse HEAD)
fn="target/release/addr2line-$commit"
if [[ ! -e "$fn" ]]; then
cargo build --release --example addr2line
cp target/release/examples/addr2line "$fn"
fi
if [[ "$ref" != "$commit" ]]; then
ln -sfn "addr2line-$commit" target/release/addr2line-"$ref"
fi
done
git checkout -q "$current"
popstash
popd > /dev/null
# get us some addresses to look up
if [[ -z "$addresses" ]]; then
echo "==> Looking for benchmarking addresses (this may take a while)"
addresses=$(mktemp tmp.XXXXXXXXXX)
objdump -C -x --disassemble -l "$target" \
| grep -P '0[048]:' \
| awk '{print $1}' \
| sed 's/:$//' \
> "$addresses"
echo " -> Addresses stored in $addresses; you should re-use it next time"
fi
run() {
func="$1"
name="$2"
cmd="$3"
args="$4"
printf "%s\t%s\t" "$name" "$func"
if [[ "$cmd" =~ llvm-symbolizer ]]; then
/usr/bin/time -f '%e\t%M' "$cmd" $args -obj="$target" < "$addresses" 2>&1 >/dev/null
else
/usr/bin/time -f '%e\t%M' "$cmd" $args -e "$target" < "$addresses" 2>&1 >/dev/null
fi
}
# run without functions
log1=$(mktemp tmp.XXXXXXXXXX)
echo "==> Benchmarking"
run nofunc binutils addr2line >> "$log1"
#run nofunc elfutils eu-addr2line >> "$log1"
run nofunc llvm-sym llvm-symbolizer -functions=none >> "$log1"
for ref in "$@"; do
run nofunc "$ref" "$dirname/target/release/addr2line-$ref" >> "$log1"
done
cat "$log1" | column -t
# run with functions
log2=$(mktemp tmp.XXXXXXXXXX)
echo "==> Benchmarking with -f"
run func binutils addr2line "-f -i" >> "$log2"
#run func elfutils eu-addr2line "-f -i" >> "$log2"
run func llvm-sym llvm-symbolizer "-functions=linkage -demangle=0" >> "$log2"
for ref in "$@"; do
run func "$ref" "$dirname/target/release/addr2line-$ref" "-f -i" >> "$log2"
done
cat "$log2" | column -t
cat "$log2" >> "$log1"; rm "$log2"
echo "==> Plotting"
Rscript --no-readline --no-restore --no-save "$dirname/bench.plot.r" < "$log1"
echo "==> Cleaning up"
rm "$log1"
exit 0
}

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#!/bin/sh
# Run tarpaulin and pycobertura to generate coverage.html.
cargo tarpaulin --skip-clean --out Xml
pycobertura show --format html --output coverage.html cobertura.xml

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use std::borrow::Cow;
use std::fs::File;
use std::io::{BufRead, Lines, StdinLock, Write};
use std::path::{Path, PathBuf};
use clap::{Arg, ArgAction, Command};
use fallible_iterator::FallibleIterator;
use object::{Object, ObjectSection, SymbolMap, SymbolMapName};
use typed_arena::Arena;
use addr2line::{Context, Location};
fn parse_uint_from_hex_string(string: &str) -> Option<u64> {
if string.len() > 2 && string.starts_with("0x") {
u64::from_str_radix(&string[2..], 16).ok()
} else {
u64::from_str_radix(string, 16).ok()
}
}
enum Addrs<'a> {
Args(clap::parser::ValuesRef<'a, String>),
Stdin(Lines<StdinLock<'a>>),
}
impl<'a> Iterator for Addrs<'a> {
type Item = Option<u64>;
fn next(&mut self) -> Option<Option<u64>> {
let text = match *self {
Addrs::Args(ref mut vals) => vals.next().map(Cow::from),
Addrs::Stdin(ref mut lines) => lines.next().map(Result::unwrap).map(Cow::from),
};
text.as_ref()
.map(Cow::as_ref)
.map(parse_uint_from_hex_string)
}
}
fn print_loc(loc: Option<&Location<'_>>, basenames: bool, llvm: bool) {
if let Some(loc) = loc {
if let Some(ref file) = loc.file.as_ref() {
let path = if basenames {
Path::new(Path::new(file).file_name().unwrap())
} else {
Path::new(file)
};
print!("{}:", path.display());
} else {
print!("??:");
}
if llvm {
print!("{}:{}", loc.line.unwrap_or(0), loc.column.unwrap_or(0));
} else if let Some(line) = loc.line {
print!("{}", line);
} else {
print!("?");
}
println!();
} else if llvm {
println!("??:0:0");
} else {
println!("??:0");
}
}
fn print_function(name: Option<&str>, language: Option<gimli::DwLang>, demangle: bool) {
if let Some(name) = name {
if demangle {
print!("{}", addr2line::demangle_auto(Cow::from(name), language));
} else {
print!("{}", name);
}
} else {
print!("??");
}
}
fn load_file_section<'input, 'arena, Endian: gimli::Endianity>(
id: gimli::SectionId,
file: &object::File<'input>,
endian: Endian,
arena_data: &'arena Arena<Cow<'input, [u8]>>,
) -> Result<gimli::EndianSlice<'arena, Endian>, ()> {
// TODO: Unify with dwarfdump.rs in gimli.
let name = id.name();
match file.section_by_name(name) {
Some(section) => match section.uncompressed_data().unwrap() {
Cow::Borrowed(b) => Ok(gimli::EndianSlice::new(b, endian)),
Cow::Owned(b) => Ok(gimli::EndianSlice::new(arena_data.alloc(b.into()), endian)),
},
None => Ok(gimli::EndianSlice::new(&[][..], endian)),
}
}
fn find_name_from_symbols<'a>(
symbols: &'a SymbolMap<SymbolMapName<'_>>,
probe: u64,
) -> Option<&'a str> {
symbols.get(probe).map(|x| x.name())
}
struct Options<'a> {
do_functions: bool,
do_inlines: bool,
pretty: bool,
print_addrs: bool,
basenames: bool,
demangle: bool,
llvm: bool,
exe: &'a PathBuf,
sup: Option<&'a PathBuf>,
}
fn main() {
let matches = Command::new("addr2line")
.version(env!("CARGO_PKG_VERSION"))
.about("A fast addr2line Rust port")
.max_term_width(100)
.args(&[
Arg::new("exe")
.short('e')
.long("exe")
.value_name("filename")
.value_parser(clap::value_parser!(PathBuf))
.help(
"Specify the name of the executable for which addresses should be translated.",
)
.required(true),
Arg::new("sup")
.long("sup")
.value_name("filename")
.value_parser(clap::value_parser!(PathBuf))
.help("Path to supplementary object file."),
Arg::new("functions")
.short('f')
.long("functions")
.action(ArgAction::SetTrue)
.help("Display function names as well as file and line number information."),
Arg::new("pretty").short('p').long("pretty-print")
.action(ArgAction::SetTrue)
.help(
"Make the output more human friendly: each location are printed on one line.",
),
Arg::new("inlines").short('i').long("inlines")
.action(ArgAction::SetTrue)
.help(
"If the address belongs to a function that was inlined, the source information for \
all enclosing scopes back to the first non-inlined function will also be printed.",
),
Arg::new("addresses").short('a').long("addresses")
.action(ArgAction::SetTrue)
.help(
"Display the address before the function name, file and line number information.",
),
Arg::new("basenames")
.short('s')
.long("basenames")
.action(ArgAction::SetTrue)
.help("Display only the base of each file name."),
Arg::new("demangle").short('C').long("demangle")
.action(ArgAction::SetTrue)
.help(
"Demangle function names. \
Specifying a specific demangling style (like GNU addr2line) is not supported. \
(TODO)"
),
Arg::new("llvm")
.long("llvm")
.action(ArgAction::SetTrue)
.help("Display output in the same format as llvm-symbolizer."),
Arg::new("addrs")
.action(ArgAction::Append)
.help("Addresses to use instead of reading from stdin."),
])
.get_matches();
let arena_data = Arena::new();
let opts = Options {
do_functions: matches.get_flag("functions"),
do_inlines: matches.get_flag("inlines"),
pretty: matches.get_flag("pretty"),
print_addrs: matches.get_flag("addresses"),
basenames: matches.get_flag("basenames"),
demangle: matches.get_flag("demangle"),
llvm: matches.get_flag("llvm"),
exe: matches.get_one::<PathBuf>("exe").unwrap(),
sup: matches.get_one::<PathBuf>("sup"),
};
let file = File::open(opts.exe).unwrap();
let map = unsafe { memmap2::Mmap::map(&file).unwrap() };
let object = &object::File::parse(&*map).unwrap();
let endian = if object.is_little_endian() {
gimli::RunTimeEndian::Little
} else {
gimli::RunTimeEndian::Big
};
let mut load_section = |id: gimli::SectionId| -> Result<_, _> {
load_file_section(id, object, endian, &arena_data)
};
let sup_map;
let sup_object = if let Some(sup_path) = opts.sup {
let sup_file = File::open(sup_path).unwrap();
sup_map = unsafe { memmap2::Mmap::map(&sup_file).unwrap() };
Some(object::File::parse(&*sup_map).unwrap())
} else {
None
};
let symbols = object.symbol_map();
let mut dwarf = gimli::Dwarf::load(&mut load_section).unwrap();
if let Some(ref sup_object) = sup_object {
let mut load_sup_section = |id: gimli::SectionId| -> Result<_, _> {
load_file_section(id, sup_object, endian, &arena_data)
};
dwarf.load_sup(&mut load_sup_section).unwrap();
}
let mut split_dwarf_loader = addr2line::builtin_split_dwarf_loader::SplitDwarfLoader::new(
|data, endian| {
gimli::EndianSlice::new(arena_data.alloc(Cow::Owned(data.into_owned())), endian)
},
Some(opts.exe.clone()),
);
let ctx = Context::from_dwarf(dwarf).unwrap();
let stdin = std::io::stdin();
let addrs = matches
.get_many::<String>("addrs")
.map(Addrs::Args)
.unwrap_or_else(|| Addrs::Stdin(stdin.lock().lines()));
for probe in addrs {
if opts.print_addrs {
let addr = probe.unwrap_or(0);
if opts.llvm {
print!("0x{:x}", addr);
} else {
print!("0x{:016x}", addr);
}
if opts.pretty {
print!(": ");
} else {
println!();
}
}
if opts.do_functions || opts.do_inlines {
let mut printed_anything = false;
if let Some(probe) = probe {
let frames = ctx.find_frames(probe);
let frames = split_dwarf_loader.run(frames).unwrap();
let mut frames = frames.enumerate();
while let Some((i, frame)) = frames.next().unwrap() {
if opts.pretty && i != 0 {
print!(" (inlined by) ");
}
if opts.do_functions {
if let Some(func) = frame.function {
print_function(
func.raw_name().ok().as_ref().map(AsRef::as_ref),
func.language,
opts.demangle,
);
} else {
let name = find_name_from_symbols(&symbols, probe);
print_function(name, None, opts.demangle);
}
if opts.pretty {
print!(" at ");
} else {
println!();
}
}
print_loc(frame.location.as_ref(), opts.basenames, opts.llvm);
printed_anything = true;
if !opts.do_inlines {
break;
}
}
}
if !printed_anything {
if opts.do_functions {
let name = probe.and_then(|probe| find_name_from_symbols(&symbols, probe));
print_function(name, None, opts.demangle);
if opts.pretty {
print!(" at ");
} else {
println!();
}
}
print_loc(None, opts.basenames, opts.llvm);
}
} else {
let loc = probe.and_then(|probe| ctx.find_location(probe).unwrap());
print_loc(loc.as_ref(), opts.basenames, opts.llvm);
}
if opts.llvm {
println!();
}
std::io::stdout().flush().unwrap();
}
}

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164
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use alloc::borrow::Cow;
use alloc::sync::Arc;
use std::fs::File;
use std::path::PathBuf;
use object::Object;
use crate::{LookupContinuation, LookupResult};
#[cfg(unix)]
fn convert_path<R: gimli::Reader<Endian = gimli::RunTimeEndian>>(
r: &R,
) -> Result<PathBuf, gimli::Error> {
use std::ffi::OsStr;
use std::os::unix::ffi::OsStrExt;
let bytes = r.to_slice()?;
let s = OsStr::from_bytes(&bytes);
Ok(PathBuf::from(s))
}
#[cfg(not(unix))]
fn convert_path<R: gimli::Reader<Endian = gimli::RunTimeEndian>>(
r: &R,
) -> Result<PathBuf, gimli::Error> {
let bytes = r.to_slice()?;
let s = std::str::from_utf8(&bytes).map_err(|_| gimli::Error::BadUtf8)?;
Ok(PathBuf::from(s))
}
fn load_section<'data: 'file, 'file, O, R, F>(
id: gimli::SectionId,
file: &'file O,
endian: R::Endian,
loader: &mut F,
) -> Result<R, gimli::Error>
where
O: object::Object<'data, 'file>,
R: gimli::Reader<Endian = gimli::RunTimeEndian>,
F: FnMut(Cow<'data, [u8]>, R::Endian) -> R,
{
use object::ObjectSection;
let data = id
.dwo_name()
.and_then(|dwo_name| {
file.section_by_name(dwo_name)
.and_then(|section| section.uncompressed_data().ok())
})
.unwrap_or(Cow::Borrowed(&[]));
Ok(loader(data, endian))
}
/// A simple builtin split DWARF loader.
pub struct SplitDwarfLoader<R, F>
where
R: gimli::Reader<Endian = gimli::RunTimeEndian>,
F: FnMut(Cow<'_, [u8]>, R::Endian) -> R,
{
loader: F,
dwarf_package: Option<gimli::DwarfPackage<R>>,
}
impl<R, F> SplitDwarfLoader<R, F>
where
R: gimli::Reader<Endian = gimli::RunTimeEndian>,
F: FnMut(Cow<'_, [u8]>, R::Endian) -> R,
{
fn load_dwarf_package(loader: &mut F, path: Option<PathBuf>) -> Option<gimli::DwarfPackage<R>> {
let mut path = path.map(Ok).unwrap_or_else(std::env::current_exe).ok()?;
let dwp_extension = path
.extension()
.map(|previous_extension| {
let mut previous_extension = previous_extension.to_os_string();
previous_extension.push(".dwp");
previous_extension
})
.unwrap_or_else(|| "dwp".into());
path.set_extension(dwp_extension);
let file = File::open(&path).ok()?;
let map = unsafe { memmap2::Mmap::map(&file).ok()? };
let dwp = object::File::parse(&*map).ok()?;
let endian = if dwp.is_little_endian() {
gimli::RunTimeEndian::Little
} else {
gimli::RunTimeEndian::Big
};
let empty = loader(Cow::Borrowed(&[]), endian);
gimli::DwarfPackage::load(
|section_id| load_section(section_id, &dwp, endian, loader),
empty,
)
.ok()
}
/// Create a new split DWARF loader.
pub fn new(mut loader: F, path: Option<PathBuf>) -> SplitDwarfLoader<R, F> {
let dwarf_package = SplitDwarfLoader::load_dwarf_package(&mut loader, path);
SplitDwarfLoader {
loader,
dwarf_package,
}
}
/// Run the provided `LookupResult` to completion, loading any necessary
/// split DWARF along the way.
pub fn run<L>(&mut self, mut l: LookupResult<L>) -> L::Output
where
L: LookupContinuation<Buf = R>,
{
loop {
let (load, continuation) = match l {
LookupResult::Output(output) => break output,
LookupResult::Load { load, continuation } => (load, continuation),
};
let mut r: Option<Arc<gimli::Dwarf<_>>> = None;
if let Some(dwp) = self.dwarf_package.as_ref() {
if let Ok(Some(cu)) = dwp.find_cu(load.dwo_id, &load.parent) {
r = Some(Arc::new(cu));
}
}
if r.is_none() {
let mut path = PathBuf::new();
if let Some(p) = load.comp_dir.as_ref() {
if let Ok(p) = convert_path(p) {
path.push(p);
}
}
if let Some(p) = load.path.as_ref() {
if let Ok(p) = convert_path(p) {
path.push(p);
}
}
if let Ok(file) = File::open(&path) {
if let Ok(map) = unsafe { memmap2::Mmap::map(&file) } {
if let Ok(file) = object::File::parse(&*map) {
let endian = if file.is_little_endian() {
gimli::RunTimeEndian::Little
} else {
gimli::RunTimeEndian::Big
};
r = gimli::Dwarf::load(|id| {
load_section(id, &file, endian, &mut self.loader)
})
.ok()
.map(|mut dwo_dwarf| {
dwo_dwarf.make_dwo(&load.parent);
Arc::new(dwo_dwarf)
});
}
}
}
}
l = continuation.resume(r);
}
}
}

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vendor/addr2line/src/function.rs vendored Normal file
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use alloc::boxed::Box;
use alloc::vec::Vec;
use core::cmp::Ordering;
use core::iter;
use crate::lazy::LazyCell;
use crate::maybe_small;
use crate::{Context, DebugFile, Error, RangeAttributes};
pub(crate) struct Functions<R: gimli::Reader> {
/// List of all `DW_TAG_subprogram` details in the unit.
pub(crate) functions: Box<
[(
gimli::UnitOffset<R::Offset>,
LazyCell<Result<Function<R>, Error>>,
)],
>,
/// List of `DW_TAG_subprogram` address ranges in the unit.
pub(crate) addresses: Box<[FunctionAddress]>,
}
/// A single address range for a function.
///
/// It is possible for a function to have multiple address ranges; this
/// is handled by having multiple `FunctionAddress` entries with the same
/// `function` field.
pub(crate) struct FunctionAddress {
range: gimli::Range,
/// An index into `Functions::functions`.
pub(crate) function: usize,
}
pub(crate) struct Function<R: gimli::Reader> {
pub(crate) dw_die_offset: gimli::UnitOffset<R::Offset>,
pub(crate) name: Option<R>,
/// List of all `DW_TAG_inlined_subroutine` details in this function.
inlined_functions: Box<[InlinedFunction<R>]>,
/// List of `DW_TAG_inlined_subroutine` address ranges in this function.
inlined_addresses: Box<[InlinedFunctionAddress]>,
}
pub(crate) struct InlinedFunctionAddress {
range: gimli::Range,
call_depth: usize,
/// An index into `Function::inlined_functions`.
function: usize,
}
pub(crate) struct InlinedFunction<R: gimli::Reader> {
pub(crate) dw_die_offset: gimli::UnitOffset<R::Offset>,
pub(crate) name: Option<R>,
pub(crate) call_file: Option<u64>,
pub(crate) call_line: u32,
pub(crate) call_column: u32,
}
impl<R: gimli::Reader> Functions<R> {
pub(crate) fn parse(
unit: &gimli::Unit<R>,
sections: &gimli::Dwarf<R>,
) -> Result<Functions<R>, Error> {
let mut functions = Vec::new();
let mut addresses = Vec::new();
let mut entries = unit.entries_raw(None)?;
while !entries.is_empty() {
let dw_die_offset = entries.next_offset();
if let Some(abbrev) = entries.read_abbreviation()? {
if abbrev.tag() == gimli::DW_TAG_subprogram {
let mut ranges = RangeAttributes::default();
for spec in abbrev.attributes() {
match entries.read_attribute(*spec) {
Ok(ref attr) => {
match attr.name() {
gimli::DW_AT_low_pc => match attr.value() {
gimli::AttributeValue::Addr(val) => {
ranges.low_pc = Some(val)
}
gimli::AttributeValue::DebugAddrIndex(index) => {
ranges.low_pc = Some(sections.address(unit, index)?);
}
_ => {}
},
gimli::DW_AT_high_pc => match attr.value() {
gimli::AttributeValue::Addr(val) => {
ranges.high_pc = Some(val)
}
gimli::AttributeValue::DebugAddrIndex(index) => {
ranges.high_pc = Some(sections.address(unit, index)?);
}
gimli::AttributeValue::Udata(val) => {
ranges.size = Some(val)
}
_ => {}
},
gimli::DW_AT_ranges => {
ranges.ranges_offset =
sections.attr_ranges_offset(unit, attr.value())?;
}
_ => {}
};
}
Err(e) => return Err(e),
}
}
let function_index = functions.len();
if ranges.for_each_range(sections, unit, |range| {
addresses.push(FunctionAddress {
range,
function: function_index,
});
})? {
functions.push((dw_die_offset, LazyCell::new()));
}
} else {
entries.skip_attributes(abbrev.attributes())?;
}
}
}
// The binary search requires the addresses to be sorted.
//
// It also requires them to be non-overlapping. In practice, overlapping
// function ranges are unlikely, so we don't try to handle that yet.
//
// It's possible for multiple functions to have the same address range if the
// compiler can detect and remove functions with identical code. In that case
// we'll nondeterministically return one of them.
addresses.sort_by_key(|x| x.range.begin);
Ok(Functions {
functions: functions.into_boxed_slice(),
addresses: addresses.into_boxed_slice(),
})
}
pub(crate) fn find_address(&self, probe: u64) -> Option<usize> {
self.addresses
.binary_search_by(|address| {
if probe < address.range.begin {
Ordering::Greater
} else if probe >= address.range.end {
Ordering::Less
} else {
Ordering::Equal
}
})
.ok()
}
pub(crate) fn parse_inlined_functions(
&self,
file: DebugFile,
unit: &gimli::Unit<R>,
ctx: &Context<R>,
sections: &gimli::Dwarf<R>,
) -> Result<(), Error> {
for function in &*self.functions {
function
.1
.borrow_with(|| Function::parse(function.0, file, unit, ctx, sections))
.as_ref()
.map_err(Error::clone)?;
}
Ok(())
}
}
impl<R: gimli::Reader> Function<R> {
pub(crate) fn parse(
dw_die_offset: gimli::UnitOffset<R::Offset>,
file: DebugFile,
unit: &gimli::Unit<R>,
ctx: &Context<R>,
sections: &gimli::Dwarf<R>,
) -> Result<Self, Error> {
let mut entries = unit.entries_raw(Some(dw_die_offset))?;
let depth = entries.next_depth();
let abbrev = entries.read_abbreviation()?.unwrap();
debug_assert_eq!(abbrev.tag(), gimli::DW_TAG_subprogram);
let mut name = None;
for spec in abbrev.attributes() {
match entries.read_attribute(*spec) {
Ok(ref attr) => {
match attr.name() {
gimli::DW_AT_linkage_name | gimli::DW_AT_MIPS_linkage_name => {
if let Ok(val) = sections.attr_string(unit, attr.value()) {
name = Some(val);
}
}
gimli::DW_AT_name => {
if name.is_none() {
name = sections.attr_string(unit, attr.value()).ok();
}
}
gimli::DW_AT_abstract_origin | gimli::DW_AT_specification => {
if name.is_none() {
name = name_attr(attr.value(), file, unit, ctx, sections, 16)?;
}
}
_ => {}
};
}
Err(e) => return Err(e),
}
}
let mut inlined_functions = Vec::new();
let mut inlined_addresses = Vec::new();
Function::parse_children(
&mut entries,
depth,
file,
unit,
ctx,
sections,
&mut inlined_functions,
&mut inlined_addresses,
0,
)?;
// Sort ranges in "breadth-first traversal order", i.e. first by call_depth
// and then by range.begin. This allows finding the range containing an
// address at a certain depth using binary search.
// Note: Using DFS order, i.e. ordering by range.begin first and then by
// call_depth, would not work! Consider the two examples
// "[0..10 at depth 0], [0..2 at depth 1], [6..8 at depth 1]" and
// "[0..5 at depth 0], [0..2 at depth 1], [5..10 at depth 0], [6..8 at depth 1]".
// In this example, if you want to look up address 7 at depth 0, and you
// encounter [0..2 at depth 1], are you before or after the target range?
// You don't know.
inlined_addresses.sort_by(|r1, r2| {
if r1.call_depth < r2.call_depth {
Ordering::Less
} else if r1.call_depth > r2.call_depth {
Ordering::Greater
} else if r1.range.begin < r2.range.begin {
Ordering::Less
} else if r1.range.begin > r2.range.begin {
Ordering::Greater
} else {
Ordering::Equal
}
});
Ok(Function {
dw_die_offset,
name,
inlined_functions: inlined_functions.into_boxed_slice(),
inlined_addresses: inlined_addresses.into_boxed_slice(),
})
}
fn parse_children(
entries: &mut gimli::EntriesRaw<'_, '_, R>,
depth: isize,
file: DebugFile,
unit: &gimli::Unit<R>,
ctx: &Context<R>,
sections: &gimli::Dwarf<R>,
inlined_functions: &mut Vec<InlinedFunction<R>>,
inlined_addresses: &mut Vec<InlinedFunctionAddress>,
inlined_depth: usize,
) -> Result<(), Error> {
loop {
let dw_die_offset = entries.next_offset();
let next_depth = entries.next_depth();
if next_depth <= depth {
return Ok(());
}
if let Some(abbrev) = entries.read_abbreviation()? {
match abbrev.tag() {
gimli::DW_TAG_subprogram => {
Function::skip(entries, abbrev, next_depth)?;
}
gimli::DW_TAG_inlined_subroutine => {
InlinedFunction::parse(
dw_die_offset,
entries,
abbrev,
next_depth,
file,
unit,
ctx,
sections,
inlined_functions,
inlined_addresses,
inlined_depth,
)?;
}
_ => {
entries.skip_attributes(abbrev.attributes())?;
}
}
}
}
}
fn skip(
entries: &mut gimli::EntriesRaw<'_, '_, R>,
abbrev: &gimli::Abbreviation,
depth: isize,
) -> Result<(), Error> {
// TODO: use DW_AT_sibling
entries.skip_attributes(abbrev.attributes())?;
while entries.next_depth() > depth {
if let Some(abbrev) = entries.read_abbreviation()? {
entries.skip_attributes(abbrev.attributes())?;
}
}
Ok(())
}
/// Build the list of inlined functions that contain `probe`.
pub(crate) fn find_inlined_functions(
&self,
probe: u64,
) -> iter::Rev<maybe_small::IntoIter<&InlinedFunction<R>>> {
// `inlined_functions` is ordered from outside to inside.
let mut inlined_functions = maybe_small::Vec::new();
let mut inlined_addresses = &self.inlined_addresses[..];
loop {
let current_depth = inlined_functions.len();
// Look up (probe, current_depth) in inline_ranges.
// `inlined_addresses` is sorted in "breadth-first traversal order", i.e.
// by `call_depth` first, and then by `range.begin`. See the comment at
// the sort call for more information about why.
let search = inlined_addresses.binary_search_by(|range| {
if range.call_depth > current_depth {
Ordering::Greater
} else if range.call_depth < current_depth {
Ordering::Less
} else if range.range.begin > probe {
Ordering::Greater
} else if range.range.end <= probe {
Ordering::Less
} else {
Ordering::Equal
}
});
if let Ok(index) = search {
let function_index = inlined_addresses[index].function;
inlined_functions.push(&self.inlined_functions[function_index]);
inlined_addresses = &inlined_addresses[index + 1..];
} else {
break;
}
}
inlined_functions.into_iter().rev()
}
}
impl<R: gimli::Reader> InlinedFunction<R> {
fn parse(
dw_die_offset: gimli::UnitOffset<R::Offset>,
entries: &mut gimli::EntriesRaw<'_, '_, R>,
abbrev: &gimli::Abbreviation,
depth: isize,
file: DebugFile,
unit: &gimli::Unit<R>,
ctx: &Context<R>,
sections: &gimli::Dwarf<R>,
inlined_functions: &mut Vec<InlinedFunction<R>>,
inlined_addresses: &mut Vec<InlinedFunctionAddress>,
inlined_depth: usize,
) -> Result<(), Error> {
let mut ranges = RangeAttributes::default();
let mut name = None;
let mut call_file = None;
let mut call_line = 0;
let mut call_column = 0;
for spec in abbrev.attributes() {
match entries.read_attribute(*spec) {
Ok(ref attr) => match attr.name() {
gimli::DW_AT_low_pc => match attr.value() {
gimli::AttributeValue::Addr(val) => ranges.low_pc = Some(val),
gimli::AttributeValue::DebugAddrIndex(index) => {
ranges.low_pc = Some(sections.address(unit, index)?);
}
_ => {}
},
gimli::DW_AT_high_pc => match attr.value() {
gimli::AttributeValue::Addr(val) => ranges.high_pc = Some(val),
gimli::AttributeValue::DebugAddrIndex(index) => {
ranges.high_pc = Some(sections.address(unit, index)?);
}
gimli::AttributeValue::Udata(val) => ranges.size = Some(val),
_ => {}
},
gimli::DW_AT_ranges => {
ranges.ranges_offset = sections.attr_ranges_offset(unit, attr.value())?;
}
gimli::DW_AT_linkage_name | gimli::DW_AT_MIPS_linkage_name => {
if let Ok(val) = sections.attr_string(unit, attr.value()) {
name = Some(val);
}
}
gimli::DW_AT_name => {
if name.is_none() {
name = sections.attr_string(unit, attr.value()).ok();
}
}
gimli::DW_AT_abstract_origin | gimli::DW_AT_specification => {
if name.is_none() {
name = name_attr(attr.value(), file, unit, ctx, sections, 16)?;
}
}
gimli::DW_AT_call_file => {
// There is a spec issue [1] with how DW_AT_call_file is specified in DWARF 5.
// Before, a file index of 0 would indicate no source file, however in
// DWARF 5 this could be a valid index into the file table.
//
// Implementations such as LLVM generates a file index of 0 when DWARF 5 is
// used.
//
// Thus, if we see a version of 5 or later, treat a file index of 0 as such.
// [1]: http://wiki.dwarfstd.org/index.php?title=DWARF5_Line_Table_File_Numbers
if let gimli::AttributeValue::FileIndex(fi) = attr.value() {
if fi > 0 || unit.header.version() >= 5 {
call_file = Some(fi);
}
}
}
gimli::DW_AT_call_line => {
call_line = attr.udata_value().unwrap_or(0) as u32;
}
gimli::DW_AT_call_column => {
call_column = attr.udata_value().unwrap_or(0) as u32;
}
_ => {}
},
Err(e) => return Err(e),
}
}
let function_index = inlined_functions.len();
inlined_functions.push(InlinedFunction {
dw_die_offset,
name,
call_file,
call_line,
call_column,
});
ranges.for_each_range(sections, unit, |range| {
inlined_addresses.push(InlinedFunctionAddress {
range,
call_depth: inlined_depth,
function: function_index,
});
})?;
Function::parse_children(
entries,
depth,
file,
unit,
ctx,
sections,
inlined_functions,
inlined_addresses,
inlined_depth + 1,
)
}
}
fn name_attr<R>(
attr: gimli::AttributeValue<R>,
mut file: DebugFile,
unit: &gimli::Unit<R>,
ctx: &Context<R>,
sections: &gimli::Dwarf<R>,
recursion_limit: usize,
) -> Result<Option<R>, Error>
where
R: gimli::Reader,
{
if recursion_limit == 0 {
return Ok(None);
}
match attr {
gimli::AttributeValue::UnitRef(offset) => {
name_entry(file, unit, offset, ctx, sections, recursion_limit)
}
gimli::AttributeValue::DebugInfoRef(dr) => {
let (unit, offset) = ctx.find_unit(dr, file)?;
name_entry(file, unit, offset, ctx, sections, recursion_limit)
}
gimli::AttributeValue::DebugInfoRefSup(dr) => {
if let Some(sup_sections) = sections.sup.as_ref() {
file = DebugFile::Supplementary;
let (unit, offset) = ctx.find_unit(dr, file)?;
name_entry(file, unit, offset, ctx, sup_sections, recursion_limit)
} else {
Ok(None)
}
}
_ => Ok(None),
}
}
fn name_entry<R>(
file: DebugFile,
unit: &gimli::Unit<R>,
offset: gimli::UnitOffset<R::Offset>,
ctx: &Context<R>,
sections: &gimli::Dwarf<R>,
recursion_limit: usize,
) -> Result<Option<R>, Error>
where
R: gimli::Reader,
{
let mut entries = unit.entries_raw(Some(offset))?;
let abbrev = if let Some(abbrev) = entries.read_abbreviation()? {
abbrev
} else {
return Err(gimli::Error::NoEntryAtGivenOffset);
};
let mut name = None;
let mut next = None;
for spec in abbrev.attributes() {
match entries.read_attribute(*spec) {
Ok(ref attr) => match attr.name() {
gimli::DW_AT_linkage_name | gimli::DW_AT_MIPS_linkage_name => {
if let Ok(val) = sections.attr_string(unit, attr.value()) {
return Ok(Some(val));
}
}
gimli::DW_AT_name => {
if let Ok(val) = sections.attr_string(unit, attr.value()) {
name = Some(val);
}
}
gimli::DW_AT_abstract_origin | gimli::DW_AT_specification => {
next = Some(attr.value());
}
_ => {}
},
Err(e) => return Err(e),
}
}
if name.is_some() {
return Ok(name);
}
if let Some(next) = next {
return name_attr(next, file, unit, ctx, sections, recursion_limit - 1);
}
Ok(None)
}

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vendor/addr2line/src/lazy.rs vendored Normal file
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use core::cell::UnsafeCell;
pub struct LazyCell<T> {
contents: UnsafeCell<Option<T>>,
}
impl<T> LazyCell<T> {
pub fn new() -> LazyCell<T> {
LazyCell {
contents: UnsafeCell::new(None),
}
}
pub fn borrow(&self) -> Option<&T> {
unsafe { &*self.contents.get() }.as_ref()
}
pub fn borrow_with(&self, closure: impl FnOnce() -> T) -> &T {
// First check if we're already initialized...
let ptr = self.contents.get();
if let Some(val) = unsafe { &*ptr } {
return val;
}
// Note that while we're executing `closure` our `borrow_with` may
// be called recursively. This means we need to check again after
// the closure has executed. For that we use the `get_or_insert`
// method which will only perform mutation if we aren't already
// `Some`.
let val = closure();
unsafe { (*ptr).get_or_insert(val) }
}
}

1729
vendor/addr2line/src/lib.rs vendored Normal file
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126
vendor/addr2line/tests/correctness.rs vendored Normal file
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use addr2line::Context;
use fallible_iterator::FallibleIterator;
use findshlibs::{IterationControl, SharedLibrary, TargetSharedLibrary};
use object::Object;
use std::borrow::Cow;
use std::fs::File;
use std::sync::Arc;
fn find_debuginfo() -> memmap2::Mmap {
let path = std::env::current_exe().unwrap();
let file = File::open(&path).unwrap();
let map = unsafe { memmap2::Mmap::map(&file).unwrap() };
let file = &object::File::parse(&*map).unwrap();
if let Ok(uuid) = file.mach_uuid() {
for candidate in path.parent().unwrap().read_dir().unwrap() {
let path = candidate.unwrap().path();
if !path.to_str().unwrap().ends_with(".dSYM") {
continue;
}
for candidate in path.join("Contents/Resources/DWARF").read_dir().unwrap() {
let path = candidate.unwrap().path();
let file = File::open(&path).unwrap();
let map = unsafe { memmap2::Mmap::map(&file).unwrap() };
let file = &object::File::parse(&*map).unwrap();
if file.mach_uuid().unwrap() == uuid {
return map;
}
}
}
}
return map;
}
#[test]
fn correctness() {
let map = find_debuginfo();
let file = &object::File::parse(&*map).unwrap();
let module_base = file.relative_address_base();
let endian = if file.is_little_endian() {
gimli::RunTimeEndian::Little
} else {
gimli::RunTimeEndian::Big
};
fn load_section<'data: 'file, 'file, O, Endian>(
id: gimli::SectionId,
file: &'file O,
endian: Endian,
) -> Result<gimli::EndianArcSlice<Endian>, gimli::Error>
where
O: object::Object<'data, 'file>,
Endian: gimli::Endianity,
{
use object::ObjectSection;
let data = file
.section_by_name(id.name())
.and_then(|section| section.uncompressed_data().ok())
.unwrap_or(Cow::Borrowed(&[]));
Ok(gimli::EndianArcSlice::new(Arc::from(&*data), endian))
}
let dwarf = gimli::Dwarf::load(|id| load_section(id, file, endian)).unwrap();
let ctx = Context::from_dwarf(dwarf).unwrap();
let mut split_dwarf_loader = addr2line::builtin_split_dwarf_loader::SplitDwarfLoader::new(
|data, endian| gimli::EndianArcSlice::new(Arc::from(&*data), endian),
None,
);
let mut bias = None;
TargetSharedLibrary::each(|lib| {
bias = Some((lib.virtual_memory_bias().0 as u64).wrapping_sub(module_base));
IterationControl::Break
});
#[allow(unused_mut)]
let mut test = |sym: u64, expected_prefix: &str| {
let ip = sym.wrapping_sub(bias.unwrap());
let frames = ctx.find_frames(ip);
let frames = split_dwarf_loader.run(frames).unwrap();
let frame = frames.last().unwrap().unwrap();
let name = frame.function.as_ref().unwrap().demangle().unwrap();
// Old rust versions generate DWARF with wrong linkage name,
// so only check the start.
if !name.starts_with(expected_prefix) {
panic!("incorrect name '{}', expected {:?}", name, expected_prefix);
}
};
test(test_function as u64, "correctness::test_function");
test(
small::test_function as u64,
"correctness::small::test_function",
);
test(auxiliary::foo as u64, "auxiliary::foo");
}
mod small {
pub fn test_function() {
println!("y");
}
}
fn test_function() {
println!("x");
}
#[test]
fn zero_function() {
let map = find_debuginfo();
let file = &object::File::parse(&*map).unwrap();
let ctx = Context::new(file).unwrap();
for probe in 0..10 {
assert!(
ctx.find_frames(probe)
.skip_all_loads()
.unwrap()
.count()
.unwrap()
< 10
);
}
}

135
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use std::env;
use std::ffi::OsStr;
use std::path::Path;
use std::process::Command;
use backtrace::Backtrace;
use findshlibs::{IterationControl, SharedLibrary, TargetSharedLibrary};
use libtest_mimic::{Arguments, Failed, Trial};
#[inline(never)]
fn make_trace() -> Vec<String> {
fn foo() -> Backtrace {
bar()
}
#[inline(never)]
fn bar() -> Backtrace {
baz()
}
#[inline(always)]
fn baz() -> Backtrace {
Backtrace::new_unresolved()
}
let mut base_addr = None;
TargetSharedLibrary::each(|lib| {
base_addr = Some(lib.virtual_memory_bias().0 as isize);
IterationControl::Break
});
let addrfix = -base_addr.unwrap();
let trace = foo();
trace
.frames()
.iter()
.take(5)
.map(|x| format!("{:p}", (x.ip() as *const u8).wrapping_offset(addrfix)))
.collect()
}
fn run_cmd<P: AsRef<OsStr>>(exe: P, me: &Path, flags: Option<&str>, trace: &str) -> String {
let mut cmd = Command::new(exe);
cmd.env("LC_ALL", "C"); // GNU addr2line is localized, we aren't
cmd.env("RUST_BACKTRACE", "1"); // if a child crashes, we want to know why
if let Some(flags) = flags {
cmd.arg(flags);
}
cmd.arg("--exe").arg(me).arg(trace);
let output = cmd.output().unwrap();
assert!(output.status.success());
String::from_utf8(output.stdout).unwrap()
}
fn run_test(flags: Option<&str>) -> Result<(), Failed> {
let me = env::current_exe().unwrap();
let mut exe = me.clone();
assert!(exe.pop());
if exe.file_name().unwrap().to_str().unwrap() == "deps" {
assert!(exe.pop());
}
exe.push("examples");
exe.push("addr2line");
assert!(exe.is_file());
let trace = make_trace();
// HACK: GNU addr2line has a bug where looking up multiple addresses can cause the second
// lookup to fail. Workaround by doing one address at a time.
for addr in &trace {
let theirs = run_cmd("addr2line", &me, flags, addr);
let ours = run_cmd(&exe, &me, flags, addr);
// HACK: GNU addr2line does not tidy up paths properly, causing double slashes to be printed.
// We consider our behavior to be correct, so we fix their output to match ours.
let theirs = theirs.replace("//", "/");
assert!(
theirs == ours,
"Output not equivalent:
$ addr2line {0} --exe {1} {2}
{4}
$ {3} {0} --exe {1} {2}
{5}
",
flags.unwrap_or(""),
me.display(),
trace.join(" "),
exe.display(),
theirs,
ours
);
}
Ok(())
}
static FLAGS: &str = "aipsf";
fn make_tests() -> Vec<Trial> {
(0..(1 << FLAGS.len()))
.map(|bits| {
if bits == 0 {
None
} else {
let mut param = String::new();
param.push('-');
for (i, flag) in FLAGS.chars().enumerate() {
if (bits & (1 << i)) != 0 {
param.push(flag);
}
}
Some(param)
}
})
.map(|param| {
Trial::test(
format!("addr2line {}", param.as_ref().map_or("", String::as_str)),
move || run_test(param.as_ref().map(String::as_str)),
)
})
.collect()
}
fn main() {
if !cfg!(target_os = "linux") {
return;
}
let args = Arguments::from_args();
libtest_mimic::run(&args, make_tests()).exit();
}

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use std::borrow::Cow;
use std::env;
use std::fs::File;
use std::path::{self, PathBuf};
use object::Object;
fn release_fixture_path() -> PathBuf {
if let Ok(p) = env::var("ADDR2LINE_FIXTURE_PATH") {
return p.into();
}
let mut path = PathBuf::new();
if let Ok(dir) = env::var("CARGO_MANIFEST_DIR") {
path.push(dir);
}
path.push("fixtures");
path.push("addr2line-release");
path
}
fn with_file<F: FnOnce(&object::File<'_>)>(target: &path::Path, f: F) {
let file = File::open(target).unwrap();
let map = unsafe { memmap2::Mmap::map(&file).unwrap() };
let file = object::File::parse(&*map).unwrap();
f(&file)
}
fn dwarf_load<'a>(object: &object::File<'a>) -> gimli::Dwarf<Cow<'a, [u8]>> {
let load_section = |id: gimli::SectionId| -> Result<Cow<'a, [u8]>, gimli::Error> {
use object::ObjectSection;
let data = object
.section_by_name(id.name())
.and_then(|section| section.data().ok())
.unwrap_or(&[][..]);
Ok(Cow::Borrowed(data))
};
gimli::Dwarf::load(&load_section).unwrap()
}
fn dwarf_borrow<'a>(
dwarf: &'a gimli::Dwarf<Cow<'_, [u8]>>,
) -> gimli::Dwarf<gimli::EndianSlice<'a, gimli::LittleEndian>> {
let borrow_section: &dyn for<'b> Fn(
&'b Cow<'_, [u8]>,
) -> gimli::EndianSlice<'b, gimli::LittleEndian> =
&|section| gimli::EndianSlice::new(section, gimli::LittleEndian);
dwarf.borrow(&borrow_section)
}
#[test]
fn parse_base_rc() {
let target = release_fixture_path();
with_file(&target, |file| {
addr2line::ObjectContext::new(file).unwrap();
});
}
#[test]
fn parse_base_slice() {
let target = release_fixture_path();
with_file(&target, |file| {
let dwarf = dwarf_load(file);
let dwarf = dwarf_borrow(&dwarf);
addr2line::Context::from_dwarf(dwarf).unwrap();
});
}
#[test]
fn parse_lines_rc() {
let target = release_fixture_path();
with_file(&target, |file| {
let context = addr2line::ObjectContext::new(file).unwrap();
context.parse_lines().unwrap();
});
}
#[test]
fn parse_lines_slice() {
let target = release_fixture_path();
with_file(&target, |file| {
let dwarf = dwarf_load(file);
let dwarf = dwarf_borrow(&dwarf);
let context = addr2line::Context::from_dwarf(dwarf).unwrap();
context.parse_lines().unwrap();
});
}
#[test]
fn parse_functions_rc() {
let target = release_fixture_path();
with_file(&target, |file| {
let context = addr2line::ObjectContext::new(file).unwrap();
context.parse_functions().unwrap();
});
}
#[test]
fn parse_functions_slice() {
let target = release_fixture_path();
with_file(&target, |file| {
let dwarf = dwarf_load(file);
let dwarf = dwarf_borrow(&dwarf);
let context = addr2line::Context::from_dwarf(dwarf).unwrap();
context.parse_functions().unwrap();
});
}

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@ -0,0 +1 @@
{"files":{"CHANGELOG.md":"737088e45fdf27fe2cfedce163332d8ce08c58fd86ca287de2de34c0fbaf63e7","Cargo.toml":"f410869f0f1a5697f65a8a77be03da7aeecc0be26e7cf3a1feb1acaa4f518770","LICENSE-0BSD":"861399f8c21c042b110517e76dc6b63a2b334276c8cf17412fc3c8908ca8dc17","LICENSE-APACHE":"8ada45cd9f843acf64e4722ae262c622a2b3b3007c7310ef36ac1061a30f6adb","LICENSE-MIT":"23f18e03dc49df91622fe2a76176497404e46ced8a715d9d2b67a7446571cca3","README.md":"308c50cdb42b9573743068158339570b45ca3f895015ca3b87ba983edb0a21e6","RELEASE_PROCESS.md":"a86cd10fc70f167f8d00e9e4ce0c6b4ebdfa1865058390dffd1e0ad4d3e68d9d","benches/bench.rs":"c07ce370e3680c602e415f8d1ec4e543ea2163ab22a09b6b82d93e8a30adca82","src/algo.rs":"b664b131f724a809591394a10b9023f40ab5963e32a83fa3163c2668e59c8b66","src/lib.rs":"b55ba9c629b30360d08168b2ca0c96275432856a539737a105a6d6ae6bf7e88f"},"package":"f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"}

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# Changelog
## Unreleased
No changes.
## [1.0.2 - 2021-02-26](https://github.com/jonas-schievink/adler/releases/tag/v1.0.2)
- Fix doctest on big-endian systems ([#9]).
[#9]: https://github.com/jonas-schievink/adler/pull/9
## [1.0.1 - 2020-11-08](https://github.com/jonas-schievink/adler/releases/tag/v1.0.1)
### Fixes
- Fix documentation on docs.rs.
## [1.0.0 - 2020-11-08](https://github.com/jonas-schievink/adler/releases/tag/v1.0.0)
### Fixes
- Fix `cargo test --no-default-features` ([#5]).
### Improvements
- Extended and clarified documentation.
- Added more rustdoc examples.
- Extended CI to test the crate with `--no-default-features`.
### Breaking Changes
- `adler32_reader` now takes its generic argument by value instead of as a `&mut`.
- Renamed `adler32_reader` to `adler32`.
## [0.2.3 - 2020-07-11](https://github.com/jonas-schievink/adler/releases/tag/v0.2.3)
- Process 4 Bytes at a time, improving performance by up to 50% ([#2]).
## [0.2.2 - 2020-06-27](https://github.com/jonas-schievink/adler/releases/tag/v0.2.2)
- Bump MSRV to 1.31.0.
## [0.2.1 - 2020-06-27](https://github.com/jonas-schievink/adler/releases/tag/v0.2.1)
- Add a few `#[inline]` annotations to small functions.
- Fix CI badge.
- Allow integration into libstd.
## [0.2.0 - 2020-06-27](https://github.com/jonas-schievink/adler/releases/tag/v0.2.0)
- Support `#![no_std]` when using `default-features = false`.
- Improve performance by around 7x.
- Support Rust 1.8.0.
- Improve API naming.
## [0.1.0 - 2020-06-26](https://github.com/jonas-schievink/adler/releases/tag/v0.1.0)
Initial release.
[#2]: https://github.com/jonas-schievink/adler/pull/2
[#5]: https://github.com/jonas-schievink/adler/pull/5

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# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
#
# When uploading crates to the registry Cargo will automatically
# "normalize" Cargo.toml files for maximal compatibility
# with all versions of Cargo and also rewrite `path` dependencies
# to registry (e.g., crates.io) dependencies
#
# If you believe there's an error in this file please file an
# issue against the rust-lang/cargo repository. If you're
# editing this file be aware that the upstream Cargo.toml
# will likely look very different (and much more reasonable)
[package]
name = "adler"
version = "1.0.2"
authors = ["Jonas Schievink <jonasschievink@gmail.com>"]
description = "A simple clean-room implementation of the Adler-32 checksum"
documentation = "https://docs.rs/adler/"
readme = "README.md"
keywords = ["checksum", "integrity", "hash", "adler32", "zlib"]
categories = ["algorithms"]
license = "0BSD OR MIT OR Apache-2.0"
repository = "https://github.com/jonas-schievink/adler.git"
[package.metadata.docs.rs]
rustdoc-args = ["--cfg=docsrs"]
[package.metadata.release]
no-dev-version = true
pre-release-commit-message = "Release {{version}}"
tag-message = "{{version}}"
[[package.metadata.release.pre-release-replacements]]
file = "CHANGELOG.md"
replace = "## Unreleased\n\nNo changes.\n\n## [{{version}} - {{date}}](https://github.com/jonas-schievink/adler/releases/tag/v{{version}})\n"
search = "## Unreleased\n"
[[package.metadata.release.pre-release-replacements]]
file = "README.md"
replace = "adler = \"{{version}}\""
search = "adler = \"[a-z0-9\\\\.-]+\""
[[package.metadata.release.pre-release-replacements]]
file = "src/lib.rs"
replace = "https://docs.rs/adler/{{version}}"
search = "https://docs.rs/adler/[a-z0-9\\.-]+"
[[bench]]
name = "bench"
harness = false
[dependencies.compiler_builtins]
version = "0.1.2"
optional = true
[dependencies.core]
version = "1.0.0"
optional = true
package = "rustc-std-workspace-core"
[dev-dependencies.criterion]
version = "0.3.2"
[features]
default = ["std"]
rustc-dep-of-std = ["core", "compiler_builtins"]
std = []

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Copyright (C) Jonas Schievink <jonasschievink@gmail.com>
Permission to use, copy, modify, and/or distribute this software for
any purpose with or without fee is hereby granted.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

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Apache License
Version 2.0, January 2004
https://www.apache.org/licenses/LICENSE-2.0
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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@ -0,0 +1,23 @@
Permission is hereby granted, free of charge, to any
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DEALINGS IN THE SOFTWARE.

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# Adler-32 checksums for Rust
[![crates.io](https://img.shields.io/crates/v/adler.svg)](https://crates.io/crates/adler)
[![docs.rs](https://docs.rs/adler/badge.svg)](https://docs.rs/adler/)
![CI](https://github.com/jonas-schievink/adler/workflows/CI/badge.svg)
This crate provides a simple implementation of the Adler-32 checksum, used in
the zlib compression format.
Please refer to the [changelog](CHANGELOG.md) to see what changed in the last
releases.
## Features
- Permissively licensed (0BSD) clean-room implementation.
- Zero dependencies.
- Zero `unsafe`.
- Decent performance (3-4 GB/s).
- Supports `#![no_std]` (with `default-features = false`).
## Usage
Add an entry to your `Cargo.toml`:
```toml
[dependencies]
adler = "1.0.2"
```
Check the [API Documentation](https://docs.rs/adler/) for how to use the
crate's functionality.
## Rust version support
Currently, this crate supports all Rust versions starting at Rust 1.31.0.
Bumping the Minimum Supported Rust Version (MSRV) is *not* considered a breaking
change, but will not be done without good reasons. The latest 3 stable Rust
versions will always be supported no matter what.

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# What to do to publish a new release
1. Ensure all notable changes are in the changelog under "Unreleased".
2. Execute `cargo release <level>` to bump version(s), tag and publish
everything. External subcommand, must be installed with `cargo install
cargo-release`.
`<level>` can be one of `major|minor|patch`. If this is the first release
(`0.1.0`), use `minor`, since the version starts out as `0.0.0`.
3. Go to the GitHub releases, edit the just-pushed tag. Copy the release notes
from the changelog.

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extern crate adler;
extern crate criterion;
use adler::{adler32_slice, Adler32};
use criterion::{criterion_group, criterion_main, Criterion, Throughput};
fn simple(c: &mut Criterion) {
{
const SIZE: usize = 100;
let mut group = c.benchmark_group("simple-100b");
group.throughput(Throughput::Bytes(SIZE as u64));
group.bench_function("zeroes-100", |bencher| {
bencher.iter(|| {
adler32_slice(&[0; SIZE]);
});
});
group.bench_function("ones-100", |bencher| {
bencher.iter(|| {
adler32_slice(&[0xff; SIZE]);
});
});
}
{
const SIZE: usize = 1024;
let mut group = c.benchmark_group("simple-1k");
group.throughput(Throughput::Bytes(SIZE as u64));
group.bench_function("zeroes-1k", |bencher| {
bencher.iter(|| {
adler32_slice(&[0; SIZE]);
});
});
group.bench_function("ones-1k", |bencher| {
bencher.iter(|| {
adler32_slice(&[0xff; SIZE]);
});
});
}
{
const SIZE: usize = 1024 * 1024;
let mut group = c.benchmark_group("simple-1m");
group.throughput(Throughput::Bytes(SIZE as u64));
group.bench_function("zeroes-1m", |bencher| {
bencher.iter(|| {
adler32_slice(&[0; SIZE]);
});
});
group.bench_function("ones-1m", |bencher| {
bencher.iter(|| {
adler32_slice(&[0xff; SIZE]);
});
});
}
}
fn chunked(c: &mut Criterion) {
const SIZE: usize = 16 * 1024 * 1024;
let data = vec![0xAB; SIZE];
let mut group = c.benchmark_group("chunked-16m");
group.throughput(Throughput::Bytes(SIZE as u64));
group.bench_function("5552", |bencher| {
bencher.iter(|| {
let mut h = Adler32::new();
for chunk in data.chunks(5552) {
h.write_slice(chunk);
}
h.checksum()
});
});
group.bench_function("8k", |bencher| {
bencher.iter(|| {
let mut h = Adler32::new();
for chunk in data.chunks(8 * 1024) {
h.write_slice(chunk);
}
h.checksum()
});
});
group.bench_function("64k", |bencher| {
bencher.iter(|| {
let mut h = Adler32::new();
for chunk in data.chunks(64 * 1024) {
h.write_slice(chunk);
}
h.checksum()
});
});
group.bench_function("1m", |bencher| {
bencher.iter(|| {
let mut h = Adler32::new();
for chunk in data.chunks(1024 * 1024) {
h.write_slice(chunk);
}
h.checksum()
});
});
}
criterion_group!(benches, simple, chunked);
criterion_main!(benches);

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use crate::Adler32;
use std::ops::{AddAssign, MulAssign, RemAssign};
impl Adler32 {
pub(crate) fn compute(&mut self, bytes: &[u8]) {
// The basic algorithm is, for every byte:
// a = (a + byte) % MOD
// b = (b + a) % MOD
// where MOD = 65521.
//
// For efficiency, we can defer the `% MOD` operations as long as neither a nor b overflows:
// - Between calls to `write`, we ensure that a and b are always in range 0..MOD.
// - We use 32-bit arithmetic in this function.
// - Therefore, a and b must not increase by more than 2^32-MOD without performing a `% MOD`
// operation.
//
// According to Wikipedia, b is calculated as follows for non-incremental checksumming:
// b = n×D1 + (n−1)×D2 + (n−2)×D3 + ... + Dn + n*1 (mod 65521)
// Where n is the number of bytes and Di is the i-th Byte. We need to change this to account
// for the previous values of a and b, as well as treat every input Byte as being 255:
// b_inc = n×255 + (n-1)×255 + ... + 255 + n*65520
// Or in other words:
// b_inc = n*65520 + n(n+1)/2*255
// The max chunk size is thus the largest value of n so that b_inc <= 2^32-65521.
// 2^32-65521 = n*65520 + n(n+1)/2*255
// Plugging this into an equation solver since I can't math gives n = 5552.18..., so 5552.
//
// On top of the optimization outlined above, the algorithm can also be parallelized with a
// bit more work:
//
// Note that b is a linear combination of a vector of input bytes (D1, ..., Dn).
//
// If we fix some value k<N and rewrite indices 1, ..., N as
//
// 1_1, 1_2, ..., 1_k, 2_1, ..., 2_k, ..., (N/k)_k,
//
// then we can express a and b in terms of sums of smaller sequences kb and ka:
//
// ka(j) := D1_j + D2_j + ... + D(N/k)_j where j <= k
// kb(j) := (N/k)*D1_j + (N/k-1)*D2_j + ... + D(N/k)_j where j <= k
//
// a = ka(1) + ka(2) + ... + ka(k) + 1
// b = k*(kb(1) + kb(2) + ... + kb(k)) - 1*ka(2) - ... - (k-1)*ka(k) + N
//
// We use this insight to unroll the main loop and process k=4 bytes at a time.
// The resulting code is highly amenable to SIMD acceleration, although the immediate speedups
// stem from increased pipeline parallelism rather than auto-vectorization.
//
// This technique is described in-depth (here:)[https://software.intel.com/content/www/us/\
// en/develop/articles/fast-computation-of-fletcher-checksums.html]
const MOD: u32 = 65521;
const CHUNK_SIZE: usize = 5552 * 4;
let mut a = u32::from(self.a);
let mut b = u32::from(self.b);
let mut a_vec = U32X4([0; 4]);
let mut b_vec = a_vec;
let (bytes, remainder) = bytes.split_at(bytes.len() - bytes.len() % 4);
// iterate over 4 bytes at a time
let chunk_iter = bytes.chunks_exact(CHUNK_SIZE);
let remainder_chunk = chunk_iter.remainder();
for chunk in chunk_iter {
for byte_vec in chunk.chunks_exact(4) {
let val = U32X4::from(byte_vec);
a_vec += val;
b_vec += a_vec;
}
b += CHUNK_SIZE as u32 * a;
a_vec %= MOD;
b_vec %= MOD;
b %= MOD;
}
// special-case the final chunk because it may be shorter than the rest
for byte_vec in remainder_chunk.chunks_exact(4) {
let val = U32X4::from(byte_vec);
a_vec += val;
b_vec += a_vec;
}
b += remainder_chunk.len() as u32 * a;
a_vec %= MOD;
b_vec %= MOD;
b %= MOD;
// combine the sub-sum results into the main sum
b_vec *= 4;
b_vec.0[1] += MOD - a_vec.0[1];
b_vec.0[2] += (MOD - a_vec.0[2]) * 2;
b_vec.0[3] += (MOD - a_vec.0[3]) * 3;
for &av in a_vec.0.iter() {
a += av;
}
for &bv in b_vec.0.iter() {
b += bv;
}
// iterate over the remaining few bytes in serial
for &byte in remainder.iter() {
a += u32::from(byte);
b += a;
}
self.a = (a % MOD) as u16;
self.b = (b % MOD) as u16;
}
}
#[derive(Copy, Clone)]
struct U32X4([u32; 4]);
impl U32X4 {
fn from(bytes: &[u8]) -> Self {
U32X4([
u32::from(bytes[0]),
u32::from(bytes[1]),
u32::from(bytes[2]),
u32::from(bytes[3]),
])
}
}
impl AddAssign<Self> for U32X4 {
fn add_assign(&mut self, other: Self) {
for (s, o) in self.0.iter_mut().zip(other.0.iter()) {
*s += o;
}
}
}
impl RemAssign<u32> for U32X4 {
fn rem_assign(&mut self, quotient: u32) {
for s in self.0.iter_mut() {
*s %= quotient;
}
}
}
impl MulAssign<u32> for U32X4 {
fn mul_assign(&mut self, rhs: u32) {
for s in self.0.iter_mut() {
*s *= rhs;
}
}
}

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//! Adler-32 checksum implementation.
//!
//! This implementation features:
//!
//! - Permissively licensed (0BSD) clean-room implementation.
//! - Zero dependencies.
//! - Zero `unsafe`.
//! - Decent performance (3-4 GB/s).
//! - `#![no_std]` support (with `default-features = false`).
#![doc(html_root_url = "https://docs.rs/adler/1.0.2")]
// Deny a few warnings in doctests, since rustdoc `allow`s many warnings by default
#![doc(test(attr(deny(unused_imports, unused_must_use))))]
#![cfg_attr(docsrs, feature(doc_cfg))]
#![warn(missing_debug_implementations)]
#![forbid(unsafe_code)]
#![cfg_attr(not(feature = "std"), no_std)]
#[cfg(not(feature = "std"))]
extern crate core as std;
mod algo;
use std::hash::Hasher;
#[cfg(feature = "std")]
use std::io::{self, BufRead};
/// Adler-32 checksum calculator.
///
/// An instance of this type is equivalent to an Adler-32 checksum: It can be created in the default
/// state via [`new`] (or the provided `Default` impl), or from a precalculated checksum via
/// [`from_checksum`], and the currently stored checksum can be fetched via [`checksum`].
///
/// This type also implements `Hasher`, which makes it easy to calculate Adler-32 checksums of any
/// type that implements or derives `Hash`. This also allows using Adler-32 in a `HashMap`, although
/// that is not recommended (while every checksum is a hash function, they are not necessarily a
/// good one).
///
/// # Examples
///
/// Basic, piecewise checksum calculation:
///
/// ```
/// use adler::Adler32;
///
/// let mut adler = Adler32::new();
///
/// adler.write_slice(&[0, 1, 2]);
/// adler.write_slice(&[3, 4, 5]);
///
/// assert_eq!(adler.checksum(), 0x00290010);
/// ```
///
/// Using `Hash` to process structures:
///
/// ```
/// use std::hash::Hash;
/// use adler::Adler32;
///
/// #[derive(Hash)]
/// struct Data {
/// byte: u8,
/// word: u16,
/// big: u64,
/// }
///
/// let mut adler = Adler32::new();
///
/// let data = Data { byte: 0x1F, word: 0xABCD, big: !0 };
/// data.hash(&mut adler);
///
/// // hash value depends on architecture endianness
/// if cfg!(target_endian = "little") {
/// assert_eq!(adler.checksum(), 0x33410990);
/// }
/// if cfg!(target_endian = "big") {
/// assert_eq!(adler.checksum(), 0x331F0990);
/// }
///
/// ```
///
/// [`new`]: #method.new
/// [`from_checksum`]: #method.from_checksum
/// [`checksum`]: #method.checksum
#[derive(Debug, Copy, Clone)]
pub struct Adler32 {
a: u16,
b: u16,
}
impl Adler32 {
/// Creates a new Adler-32 instance with default state.
#[inline]
pub fn new() -> Self {
Self::default()
}
/// Creates an `Adler32` instance from a precomputed Adler-32 checksum.
///
/// This allows resuming checksum calculation without having to keep the `Adler32` instance
/// around.
///
/// # Example
///
/// ```
/// # use adler::Adler32;
/// let parts = [
/// "rust",
/// "acean",
/// ];
/// let whole = adler::adler32_slice(b"rustacean");
///
/// let mut sum = Adler32::new();
/// sum.write_slice(parts[0].as_bytes());
/// let partial = sum.checksum();
///
/// // ...later
///
/// let mut sum = Adler32::from_checksum(partial);
/// sum.write_slice(parts[1].as_bytes());
/// assert_eq!(sum.checksum(), whole);
/// ```
#[inline]
pub fn from_checksum(sum: u32) -> Self {
Adler32 {
a: sum as u16,
b: (sum >> 16) as u16,
}
}
/// Returns the calculated checksum at this point in time.
#[inline]
pub fn checksum(&self) -> u32 {
(u32::from(self.b) << 16) | u32::from(self.a)
}
/// Adds `bytes` to the checksum calculation.
///
/// If efficiency matters, this should be called with Byte slices that contain at least a few
/// thousand Bytes.
pub fn write_slice(&mut self, bytes: &[u8]) {
self.compute(bytes);
}
}
impl Default for Adler32 {
#[inline]
fn default() -> Self {
Adler32 { a: 1, b: 0 }
}
}
impl Hasher for Adler32 {
#[inline]
fn finish(&self) -> u64 {
u64::from(self.checksum())
}
fn write(&mut self, bytes: &[u8]) {
self.write_slice(bytes);
}
}
/// Calculates the Adler-32 checksum of a byte slice.
///
/// This is a convenience function around the [`Adler32`] type.
///
/// [`Adler32`]: struct.Adler32.html
pub fn adler32_slice(data: &[u8]) -> u32 {
let mut h = Adler32::new();
h.write_slice(data);
h.checksum()
}
/// Calculates the Adler-32 checksum of a `BufRead`'s contents.
///
/// The passed `BufRead` implementor will be read until it reaches EOF (or until it reports an
/// error).
///
/// If you only have a `Read` implementor, you can wrap it in `std::io::BufReader` before calling
/// this function.
///
/// # Errors
///
/// Any error returned by the reader are bubbled up by this function.
///
/// # Examples
///
/// ```no_run
/// # fn run() -> Result<(), Box<dyn std::error::Error>> {
/// use adler::adler32;
///
/// use std::fs::File;
/// use std::io::BufReader;
///
/// let file = File::open("input.txt")?;
/// let mut file = BufReader::new(file);
///
/// adler32(&mut file)?;
/// # Ok(()) }
/// # fn main() { run().unwrap() }
/// ```
#[cfg(feature = "std")]
#[cfg_attr(docsrs, doc(cfg(feature = "std")))]
pub fn adler32<R: BufRead>(mut reader: R) -> io::Result<u32> {
let mut h = Adler32::new();
loop {
let len = {
let buf = reader.fill_buf()?;
if buf.is_empty() {
return Ok(h.checksum());
}
h.write_slice(buf);
buf.len()
};
reader.consume(len);
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn zeroes() {
assert_eq!(adler32_slice(&[]), 1);
assert_eq!(adler32_slice(&[0]), 1 | 1 << 16);
assert_eq!(adler32_slice(&[0, 0]), 1 | 2 << 16);
assert_eq!(adler32_slice(&[0; 100]), 0x00640001);
assert_eq!(adler32_slice(&[0; 1024]), 0x04000001);
assert_eq!(adler32_slice(&[0; 1024 * 1024]), 0x00f00001);
}
#[test]
fn ones() {
assert_eq!(adler32_slice(&[0xff; 1024]), 0x79a6fc2e);
assert_eq!(adler32_slice(&[0xff; 1024 * 1024]), 0x8e88ef11);
}
#[test]
fn mixed() {
assert_eq!(adler32_slice(&[1]), 2 | 2 << 16);
assert_eq!(adler32_slice(&[40]), 41 | 41 << 16);
assert_eq!(adler32_slice(&[0xA5; 1024 * 1024]), 0xd5009ab1);
}
/// Example calculation from https://en.wikipedia.org/wiki/Adler-32.
#[test]
fn wiki() {
assert_eq!(adler32_slice(b"Wikipedia"), 0x11E60398);
}
#[test]
fn resume() {
let mut adler = Adler32::new();
adler.write_slice(&[0xff; 1024]);
let partial = adler.checksum();
assert_eq!(partial, 0x79a6fc2e); // from above
adler.write_slice(&[0xff; 1024 * 1024 - 1024]);
assert_eq!(adler.checksum(), 0x8e88ef11); // from above
// Make sure that we can resume computing from the partial checksum via `from_checksum`.
let mut adler = Adler32::from_checksum(partial);
adler.write_slice(&[0xff; 1024 * 1024 - 1024]);
assert_eq!(adler.checksum(), 0x8e88ef11); // from above
}
#[cfg(feature = "std")]
#[test]
fn bufread() {
use std::io::BufReader;
fn test(data: &[u8], checksum: u32) {
// `BufReader` uses an 8 KB buffer, so this will test buffer refilling.
let mut buf = BufReader::new(data);
let real_sum = adler32(&mut buf).unwrap();
assert_eq!(checksum, real_sum);
}
test(&[], 1);
test(&[0; 1024], 0x04000001);
test(&[0; 1024 * 1024], 0x00f00001);
test(&[0xA5; 1024 * 1024], 0xd5009ab1);
}
}

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{"files":{"Cargo.lock":"e89078a9d7e89f125bea210c74fd30ef1167c208b9b240baa3fe76ec1170f6ec","Cargo.toml":"38deb1bfcca1eaef87c409274c63f9b25df94f6faaebc74061fa7ef1e4f078f1","LICENSE-APACHE":"c6596eb7be8581c18be736c846fb9173b69eccf6ef94c5135893ec56bd92ba08","LICENSE-MIT":"6efb0476a1cc085077ed49357026d8c173bf33017278ef440f222fb9cbcb66e6","README.md":"b230c2257d0c7a49b9bd97f2fa73abedcdc055757b5cedd2b0eb1a7a448ff461","benches/stream.rs":"7e666c4f4b79ddb5237361ed25264a966ee241192fbb2c1baea3006e3e0326b4","benches/strip.rs":"9603bd5ca1ae4661c2ccab50315dbfdec0c661ac2624262172bbd8f5d0bd87c9","benches/wincon.rs":"680e86933c008b242a3286c5149c33d3c086426eb99fe134b6e79f7578f96663","examples/dump-stream.rs":"54b2bce2409fc1a1f00dbdcab7abbbb6cde447fa20b5c829d1b17ce2e15eefd1","examples/query-stream.rs":"16f38843083174fbefa974a5aa38a5f3ffa51bd6e6db3dc1d91164462219399e","src/adapter/mod.rs":"baf4237ea0b18df63609e49d93572ca27c2202a4cbec0220adb5a7e815c7d8ed","src/adapter/strip.rs":"010972f96708c56da9bced98287f134ce43a4f6459c22c1697abdc4fd6f82d00","src/adapter/wincon.rs":"07d75878ca9edcef4f473a5ff6113b40aab681dcbcd1ae9de1ec895332f7cc2a","src/auto.rs":"71c249ab6b0af64c3946817ea9f1719d4b789128c244611a05075b1e13413007","src/buffer.rs":"83e7088b50dd3e2941c06a417d9eef75fda45311a2912ba94f480ec98d6f0183","src/fmt.rs":"cc11b005c4559843bd908a57958a13c8d0922fae6aff5261f3583c90e60da73c","src/lib.rs":"649b86b187835e0e33baaaf2242c5f331b7dff133fae8fc419c52b7add797c57","src/macros.rs":"a26ababe32a39732d0aade9674f6e5e267bd26c6ea06603ff9e61e80681195e0","src/stream.rs":"cbe8f61fba4c3c60934339c8bda5d1ff43320f57cdc4ed409aa173945a941b3d","src/strip.rs":"56e6516283b6c0dfa72a8e0e6679da8424295f50a3e56c44281e76de6aa0344b","src/wincon.rs":"fe5aff7bfd80b14c9a6b07143079d59b81831293ad766b845e46fad2e1459c9a"},"package":"d664a92ecae85fd0a7392615844904654d1d5f5514837f471ddef4a057aba1b6"}

1094
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# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
#
# When uploading crates to the registry Cargo will automatically
# "normalize" Cargo.toml files for maximal compatibility
# with all versions of Cargo and also rewrite `path` dependencies
# to registry (e.g., crates.io) dependencies.
#
# If you are reading this file be aware that the original Cargo.toml
# will likely look very different (and much more reasonable).
# See Cargo.toml.orig for the original contents.
[package]
edition = "2021"
rust-version = "1.70.0"
name = "anstream"
version = "0.6.5"
include = [
"build.rs",
"src/**/*",
"Cargo.toml",
"Cargo.lock",
"LICENSE*",
"README.md",
"benches/**/*",
"examples/**/*",
]
description = "A simple cross platform library for writing colored text to a terminal."
homepage = "https://github.com/rust-cli/anstyle"
readme = "README.md"
keywords = [
"ansi",
"terminal",
"color",
"strip",
"wincon",
]
categories = ["command-line-interface"]
license = "MIT OR Apache-2.0"
repository = "https://github.com/rust-cli/anstyle.git"
[package.metadata.docs.rs]
cargo-args = [
"-Zunstable-options",
"-Zrustdoc-scrape-examples",
]
rustdoc-args = [
"--cfg",
"docsrs",
]
[[package.metadata.release.pre-release-replacements]]
file = "CHANGELOG.md"
min = 1
replace = "{{version}}"
search = "Unreleased"
[[package.metadata.release.pre-release-replacements]]
exactly = 1
file = "CHANGELOG.md"
replace = "...{{tag_name}}"
search = '\.\.\.HEAD'
[[package.metadata.release.pre-release-replacements]]
file = "CHANGELOG.md"
min = 1
replace = "{{date}}"
search = "ReleaseDate"
[[package.metadata.release.pre-release-replacements]]
exactly = 1
file = "CHANGELOG.md"
replace = """
<!-- next-header -->
## [Unreleased] - ReleaseDate
"""
search = "<!-- next-header -->"
[[package.metadata.release.pre-release-replacements]]
exactly = 1
file = "CHANGELOG.md"
replace = """
<!-- next-url -->
[Unreleased]: https://github.com/rust-cli/anstyle/compare/{{tag_name}}...HEAD"""
search = "<!-- next-url -->"
[[bench]]
name = "strip"
harness = false
[[bench]]
name = "wincon"
harness = false
[[bench]]
name = "stream"
harness = false
[dependencies.anstyle]
version = "1.0.0"
[dependencies.anstyle-parse]
version = "0.2.0"
[dependencies.anstyle-query]
version = "1.0.0"
optional = true
[dependencies.colorchoice]
version = "1.0.0"
optional = true
[dependencies.utf8parse]
version = "0.2.1"
[dev-dependencies.criterion]
version = "0.5.1"
[dev-dependencies.lexopt]
version = "0.3.0"
[dev-dependencies.owo-colors]
version = "3.5.0"
[dev-dependencies.proptest]
version = "1.4.0"
[dev-dependencies.strip-ansi-escapes]
version = "0.2.0"
[features]
auto = [
"dep:anstyle-query",
"dep:colorchoice",
]
default = [
"auto",
"wincon",
]
test = []
wincon = ["dep:anstyle-wincon"]
[target."cfg(windows)".dependencies.anstyle-wincon]
version = "3.0.1"
optional = true

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Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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"License" shall mean the terms and conditions for use, reproduction,
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"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
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including but not limited to software source code, documentation
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not limited to compiled object code, generated documentation,
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19
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Copyright (c) Individual contributors
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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# anstream
> A simple cross platform library for writing colored text to a terminal.
*A portmanteau of "ansi stream"*
[![Documentation](https://img.shields.io/badge/docs-master-blue.svg)][Documentation]
![License](https://img.shields.io/crates/l/anstream.svg)
[![Crates Status](https://img.shields.io/crates/v/anstream.svg)](https://crates.io/crates/anstream)
Specialized `stdout` and `stderr` that accept ANSI escape codes and adapt them
based on the terminal's capabilities.
`anstream::adapter::strip_str` may also be of interest on its own for low
overhead stripping of ANSI escape codes.
## License
Licensed under either of
* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
* MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
at your option.
### Contribution
Unless you explicitly state otherwise, any contribution intentionally
submitted for inclusion in the work by you, as defined in the Apache-2.0
license, shall be dual licensed as above, without any additional terms or
conditions.
[Crates.io]: https://crates.io/crates/anstream
[Documentation]: https://docs.rs/anstream

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use std::io::Write as _;
use criterion::{black_box, Criterion};
fn stream(c: &mut Criterion) {
for (name, content) in [
("demo.vte", &include_bytes!("../tests/demo.vte")[..]),
("rg_help.vte", &include_bytes!("../tests/rg_help.vte")[..]),
("rg_linus.vte", &include_bytes!("../tests/rg_linus.vte")[..]),
(
"state_changes",
&b"\x1b]2;X\x1b\\ \x1b[0m \x1bP0@\x1b\\"[..],
),
] {
let mut group = c.benchmark_group(name);
group.bench_function("nop", |b| {
b.iter(|| {
let buffer = Vec::with_capacity(content.len());
let mut stream = buffer;
stream.write_all(content).unwrap();
black_box(stream)
})
});
group.bench_function("StripStream", |b| {
b.iter(|| {
let buffer = Vec::with_capacity(content.len());
let mut stream = anstream::StripStream::new(buffer);
stream.write_all(content).unwrap();
black_box(stream)
})
});
#[cfg(all(windows, feature = "wincon"))]
group.bench_function("WinconStream", |b| {
b.iter(|| {
let buffer = Vec::with_capacity(content.len());
let mut stream = anstream::WinconStream::new(buffer);
stream.write_all(content).unwrap();
black_box(stream)
})
});
group.bench_function("AutoStream::always_ansi", |b| {
b.iter(|| {
let buffer = Vec::with_capacity(content.len());
let mut stream = anstream::AutoStream::always_ansi(buffer);
stream.write_all(content).unwrap();
black_box(stream)
})
});
group.bench_function("AutoStream::always", |b| {
b.iter(|| {
let buffer = Vec::with_capacity(content.len());
let mut stream = anstream::AutoStream::always(buffer);
stream.write_all(content).unwrap();
black_box(stream)
})
});
group.bench_function("AutoStream::never", |b| {
b.iter(|| {
let buffer = Vec::with_capacity(content.len());
let mut stream = anstream::AutoStream::never(buffer);
stream.write_all(content).unwrap();
black_box(stream)
})
});
}
}
criterion::criterion_group!(benches, stream);
criterion::criterion_main!(benches);

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use criterion::{black_box, Criterion};
#[derive(Default)]
struct Strip(String);
impl Strip {
fn with_capacity(capacity: usize) -> Self {
Self(String::with_capacity(capacity))
}
}
impl anstyle_parse::Perform for Strip {
fn print(&mut self, c: char) {
self.0.push(c);
}
fn execute(&mut self, byte: u8) {
if byte.is_ascii_whitespace() {
self.0.push(byte as char);
}
}
}
fn strip(c: &mut Criterion) {
for (name, content) in [
("demo.vte", &include_bytes!("../tests/demo.vte")[..]),
("rg_help.vte", &include_bytes!("../tests/rg_help.vte")[..]),
("rg_linus.vte", &include_bytes!("../tests/rg_linus.vte")[..]),
(
"state_changes",
&b"\x1b]2;X\x1b\\ \x1b[0m \x1bP0@\x1b\\"[..],
),
] {
// Make sure the comparison is fair
if let Ok(content) = std::str::from_utf8(content) {
let mut stripped = Strip::with_capacity(content.len());
let mut parser = anstyle_parse::Parser::<anstyle_parse::DefaultCharAccumulator>::new();
for byte in content.as_bytes() {
parser.advance(&mut stripped, *byte);
}
assert_eq!(
stripped.0,
anstream::adapter::strip_str(content).to_string()
);
assert_eq!(
stripped.0,
String::from_utf8(anstream::adapter::strip_bytes(content.as_bytes()).into_vec())
.unwrap()
);
}
let mut group = c.benchmark_group(name);
group.bench_function("advance_strip", |b| {
b.iter(|| {
let mut stripped = Strip::with_capacity(content.len());
let mut parser =
anstyle_parse::Parser::<anstyle_parse::DefaultCharAccumulator>::new();
for byte in content {
parser.advance(&mut stripped, *byte);
}
black_box(stripped.0)
})
});
group.bench_function("strip_ansi_escapes", |b| {
b.iter(|| {
let stripped = strip_ansi_escapes::strip(content);
black_box(stripped)
})
});
if let Ok(content) = std::str::from_utf8(content) {
group.bench_function("strip_str", |b| {
b.iter(|| {
let stripped = anstream::adapter::strip_str(content).to_string();
black_box(stripped)
})
});
group.bench_function("StripStr", |b| {
b.iter(|| {
let mut stripped = String::with_capacity(content.len());
let mut state = anstream::adapter::StripStr::new();
for printable in state.strip_next(content) {
stripped.push_str(printable);
}
black_box(stripped)
})
});
}
group.bench_function("strip_bytes", |b| {
b.iter(|| {
let stripped = anstream::adapter::strip_bytes(content).into_vec();
black_box(stripped)
})
});
}
}
criterion::criterion_group!(benches, strip);
criterion::criterion_main!(benches);

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use criterion::{black_box, Criterion};
fn wincon(c: &mut Criterion) {
for (name, content) in [
("demo.vte", &include_bytes!("../tests/demo.vte")[..]),
("rg_help.vte", &include_bytes!("../tests/rg_help.vte")[..]),
("rg_linus.vte", &include_bytes!("../tests/rg_linus.vte")[..]),
(
"state_changes",
&b"\x1b]2;X\x1b\\ \x1b[0m \x1bP0@\x1b\\"[..],
),
] {
let mut group = c.benchmark_group(name);
group.bench_function("wincon_bytes", |b| {
b.iter(|| {
let mut state = anstream::adapter::WinconBytes::new();
let stripped = state.extract_next(content).collect::<Vec<_>>();
black_box(stripped)
})
});
}
}
criterion::criterion_group!(benches, wincon);
criterion::criterion_main!(benches);

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use std::io::Write;
fn main() -> Result<(), lexopt::Error> {
let args = Args::parse()?;
let stdout = anstream::stdout();
let mut stdout = stdout.lock();
for fixed in 0..16 {
let style = style(fixed, args.layer, args.effects);
let _ = print_number(&mut stdout, fixed, style);
if fixed == 7 || fixed == 15 {
let _ = writeln!(&mut stdout);
}
}
for r in 0..6 {
let _ = writeln!(stdout);
for g in 0..6 {
for b in 0..6 {
let fixed = r * 36 + g * 6 + b + 16;
let style = style(fixed, args.layer, args.effects);
let _ = print_number(&mut stdout, fixed, style);
}
let _ = writeln!(stdout);
}
}
for c in 0..24 {
if 0 == c % 8 {
let _ = writeln!(stdout);
}
let fixed = 232 + c;
let style = style(fixed, args.layer, args.effects);
let _ = print_number(&mut stdout, fixed, style);
}
Ok(())
}
fn style(fixed: u8, layer: Layer, effects: anstyle::Effects) -> anstyle::Style {
let color = anstyle::Ansi256Color(fixed).into();
(match layer {
Layer::Fg => anstyle::Style::new().fg_color(Some(color)),
Layer::Bg => anstyle::Style::new().bg_color(Some(color)),
Layer::Underline => anstyle::Style::new().underline_color(Some(color)),
}) | effects
}
fn print_number(stdout: &mut impl Write, fixed: u8, style: anstyle::Style) -> std::io::Result<()> {
write!(
stdout,
"{}{:>4}{}",
style.render(),
fixed,
anstyle::Reset.render()
)
}
#[derive(Default)]
struct Args {
effects: anstyle::Effects,
layer: Layer,
}
#[derive(Copy, Clone, Default)]
enum Layer {
#[default]
Fg,
Bg,
Underline,
}
impl Args {
fn parse() -> Result<Self, lexopt::Error> {
use lexopt::prelude::*;
let mut res = Args::default();
let mut args = lexopt::Parser::from_env();
while let Some(arg) = args.next()? {
match arg {
Long("layer") => {
res.layer = args.value()?.parse_with(|s| match s {
"fg" => Ok(Layer::Fg),
"bg" => Ok(Layer::Bg),
"underline" => Ok(Layer::Underline),
_ => Err("expected values fg, bg, underline"),
})?;
}
Long("effect") => {
const EFFECTS: [(&str, anstyle::Effects); 12] = [
("bold", anstyle::Effects::BOLD),
("dimmed", anstyle::Effects::DIMMED),
("italic", anstyle::Effects::ITALIC),
("underline", anstyle::Effects::UNDERLINE),
("double_underline", anstyle::Effects::DOUBLE_UNDERLINE),
("curly_underline", anstyle::Effects::CURLY_UNDERLINE),
("dotted_underline", anstyle::Effects::DOTTED_UNDERLINE),
("dashed_underline", anstyle::Effects::DASHED_UNDERLINE),
("blink", anstyle::Effects::BLINK),
("invert", anstyle::Effects::INVERT),
("hidden", anstyle::Effects::HIDDEN),
("strikethrough", anstyle::Effects::STRIKETHROUGH),
];
let effect = args.value()?.parse_with(|s| {
EFFECTS
.into_iter()
.find(|(name, _)| *name == s)
.map(|(_, effect)| effect)
.ok_or_else(|| {
format!(
"expected one of {}",
EFFECTS
.into_iter()
.map(|(n, _)| n)
.collect::<Vec<_>>()
.join(", ")
)
})
})?;
res.effects = res.effects.insert(effect);
}
_ => return Err(arg.unexpected()),
}
}
Ok(res)
}
}

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fn main() {
println!("stdout:");
println!(
" choice: {:?}",
anstream::AutoStream::choice(&std::io::stdout())
);
println!(
" choice: {:?}",
anstream::AutoStream::auto(std::io::stdout()).current_choice()
);
println!("stderr:");
println!(
" choice: {:?}",
anstream::AutoStream::choice(&std::io::stderr())
);
println!(
" choice: {:?}",
anstream::AutoStream::auto(std::io::stderr()).current_choice()
);
}

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//! Gracefully degrade styled output
mod strip;
mod wincon;
pub use strip::strip_bytes;
pub use strip::strip_str;
pub use strip::StripBytes;
pub use strip::StripBytesIter;
pub use strip::StripStr;
pub use strip::StripStrIter;
pub use strip::StrippedBytes;
pub use strip::StrippedStr;
pub use wincon::WinconBytes;
pub use wincon::WinconBytesIter;

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use anstyle_parse::state::state_change;
use anstyle_parse::state::Action;
use anstyle_parse::state::State;
/// Strip ANSI escapes from a `&str`, returning the printable content
///
/// This can be used to take output from a program that includes escape sequences and write it
/// somewhere that does not easily support them, such as a log file.
///
/// For non-contiguous data, see [`StripStr`].
///
/// # Example
///
/// ```rust
/// use std::io::Write as _;
///
/// let styled_text = "\x1b[32mfoo\x1b[m bar";
/// let plain_str = anstream::adapter::strip_str(&styled_text).to_string();
/// assert_eq!(plain_str, "foo bar");
/// ```
#[inline]
pub fn strip_str(data: &str) -> StrippedStr<'_> {
StrippedStr::new(data)
}
/// See [`strip_str`]
#[derive(Default, Clone, Debug, PartialEq, Eq)]
pub struct StrippedStr<'s> {
bytes: &'s [u8],
state: State,
}
impl<'s> StrippedStr<'s> {
#[inline]
fn new(data: &'s str) -> Self {
Self {
bytes: data.as_bytes(),
state: State::Ground,
}
}
/// Create a [`String`] of the printable content
#[inline]
#[allow(clippy::inherent_to_string_shadow_display)] // Single-allocation implementation
pub fn to_string(&self) -> String {
use std::fmt::Write as _;
let mut stripped = String::with_capacity(self.bytes.len());
let _ = write!(&mut stripped, "{}", self);
stripped
}
}
impl<'s> std::fmt::Display for StrippedStr<'s> {
/// **Note:** this does *not* exhaust the [`Iterator`]
#[inline]
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
let iter = Self {
bytes: self.bytes,
state: self.state,
};
for printable in iter {
printable.fmt(f)?;
}
Ok(())
}
}
impl<'s> Iterator for StrippedStr<'s> {
type Item = &'s str;
#[inline]
fn next(&mut self) -> Option<Self::Item> {
next_str(&mut self.bytes, &mut self.state)
}
}
/// Incrementally strip non-contiguous data
#[derive(Default, Clone, Debug, PartialEq, Eq)]
pub struct StripStr {
state: State,
}
impl StripStr {
/// Initial state
pub fn new() -> Self {
Default::default()
}
/// Strip the next segment of data
pub fn strip_next<'s>(&'s mut self, data: &'s str) -> StripStrIter<'s> {
StripStrIter {
bytes: data.as_bytes(),
state: &mut self.state,
}
}
}
/// See [`StripStr`]
#[derive(Debug, PartialEq, Eq)]
pub struct StripStrIter<'s> {
bytes: &'s [u8],
state: &'s mut State,
}
impl<'s> Iterator for StripStrIter<'s> {
type Item = &'s str;
#[inline]
fn next(&mut self) -> Option<Self::Item> {
next_str(&mut self.bytes, self.state)
}
}
#[inline]
fn next_str<'s>(bytes: &mut &'s [u8], state: &mut State) -> Option<&'s str> {
let offset = bytes.iter().copied().position(|b| {
let (next_state, action) = state_change(*state, b);
if next_state != State::Anywhere {
*state = next_state;
}
is_printable_str(action, b)
});
let (_, next) = bytes.split_at(offset.unwrap_or(bytes.len()));
*bytes = next;
*state = State::Ground;
let offset = bytes.iter().copied().position(|b| {
let (_next_state, action) = state_change(State::Ground, b);
!is_printable_str(action, b)
});
let (printable, next) = bytes.split_at(offset.unwrap_or(bytes.len()));
*bytes = next;
if printable.is_empty() {
None
} else {
let printable = unsafe {
from_utf8_unchecked(
printable,
"`bytes` was validated as UTF-8, the parser preserves UTF-8 continuations",
)
};
Some(printable)
}
}
#[inline]
unsafe fn from_utf8_unchecked<'b>(bytes: &'b [u8], safety_justification: &'static str) -> &'b str {
if cfg!(debug_assertions) {
// Catch problems more quickly when testing
std::str::from_utf8(bytes).expect(safety_justification)
} else {
std::str::from_utf8_unchecked(bytes)
}
}
#[inline]
fn is_printable_str(action: Action, byte: u8) -> bool {
// VT320 considered 0x7f to be `Print`able but we expect to be working in UTF-8 systems and not
// ISO Latin-1, making it DEL and non-printable
const DEL: u8 = 0x7f;
(action == Action::Print && byte != DEL)
|| action == Action::BeginUtf8
// since we know the input is valid UTF-8, the only thing we can do with
// continuations is to print them
|| is_utf8_continuation(byte)
|| (action == Action::Execute && byte.is_ascii_whitespace())
}
#[inline]
fn is_utf8_continuation(b: u8) -> bool {
matches!(b, 0x80..=0xbf)
}
/// Strip ANSI escapes from bytes, returning the printable content
///
/// This can be used to take output from a program that includes escape sequences and write it
/// somewhere that does not easily support them, such as a log file.
///
/// # Example
///
/// ```rust
/// use std::io::Write as _;
///
/// let styled_text = "\x1b[32mfoo\x1b[m bar";
/// let plain_str = anstream::adapter::strip_bytes(styled_text.as_bytes()).into_vec();
/// assert_eq!(plain_str.as_slice(), &b"foo bar"[..]);
/// ```
#[inline]
pub fn strip_bytes(data: &[u8]) -> StrippedBytes<'_> {
StrippedBytes::new(data)
}
/// See [`strip_bytes`]
#[derive(Default, Clone, Debug, PartialEq, Eq)]
pub struct StrippedBytes<'s> {
bytes: &'s [u8],
state: State,
utf8parser: Utf8Parser,
}
impl<'s> StrippedBytes<'s> {
/// See [`strip_bytes`]
#[inline]
pub fn new(bytes: &'s [u8]) -> Self {
Self {
bytes,
state: State::Ground,
utf8parser: Default::default(),
}
}
/// Strip the next slice of bytes
///
/// Used when the content is in several non-contiguous slices
///
/// # Panic
///
/// May panic if it is not exhausted / empty
#[inline]
pub fn extend(&mut self, bytes: &'s [u8]) {
debug_assert!(
self.is_empty(),
"current bytes must be processed to ensure we end at the right state"
);
self.bytes = bytes;
}
/// Report the bytes has been exhausted
#[inline]
pub fn is_empty(&self) -> bool {
self.bytes.is_empty()
}
/// Create a [`Vec`] of the printable content
#[inline]
pub fn into_vec(self) -> Vec<u8> {
let mut stripped = Vec::with_capacity(self.bytes.len());
for printable in self {
stripped.extend(printable);
}
stripped
}
}
impl<'s> Iterator for StrippedBytes<'s> {
type Item = &'s [u8];
#[inline]
fn next(&mut self) -> Option<Self::Item> {
next_bytes(&mut self.bytes, &mut self.state, &mut self.utf8parser)
}
}
/// Incrementally strip non-contiguous data
#[derive(Default, Clone, Debug, PartialEq, Eq)]
pub struct StripBytes {
state: State,
utf8parser: Utf8Parser,
}
impl StripBytes {
/// Initial state
pub fn new() -> Self {
Default::default()
}
/// Strip the next segment of data
pub fn strip_next<'s>(&'s mut self, bytes: &'s [u8]) -> StripBytesIter<'s> {
StripBytesIter {
bytes,
state: &mut self.state,
utf8parser: &mut self.utf8parser,
}
}
}
/// See [`StripBytes`]
#[derive(Debug, PartialEq, Eq)]
pub struct StripBytesIter<'s> {
bytes: &'s [u8],
state: &'s mut State,
utf8parser: &'s mut Utf8Parser,
}
impl<'s> Iterator for StripBytesIter<'s> {
type Item = &'s [u8];
#[inline]
fn next(&mut self) -> Option<Self::Item> {
next_bytes(&mut self.bytes, self.state, self.utf8parser)
}
}
#[inline]
fn next_bytes<'s>(
bytes: &mut &'s [u8],
state: &mut State,
utf8parser: &mut Utf8Parser,
) -> Option<&'s [u8]> {
let offset = bytes.iter().copied().position(|b| {
if *state == State::Utf8 {
true
} else {
let (next_state, action) = state_change(*state, b);
if next_state != State::Anywhere {
*state = next_state;
}
is_printable_bytes(action, b)
}
});
let (_, next) = bytes.split_at(offset.unwrap_or(bytes.len()));
*bytes = next;
let offset = bytes.iter().copied().position(|b| {
if *state == State::Utf8 {
if utf8parser.add(b) {
*state = State::Ground;
}
false
} else {
let (next_state, action) = state_change(State::Ground, b);
if next_state != State::Anywhere {
*state = next_state;
}
if *state == State::Utf8 {
utf8parser.add(b);
false
} else {
!is_printable_bytes(action, b)
}
}
});
let (printable, next) = bytes.split_at(offset.unwrap_or(bytes.len()));
*bytes = next;
if printable.is_empty() {
None
} else {
Some(printable)
}
}
#[derive(Default, Clone, Debug, PartialEq, Eq)]
pub struct Utf8Parser {
utf8_parser: utf8parse::Parser,
}
impl Utf8Parser {
fn add(&mut self, byte: u8) -> bool {
let mut b = false;
let mut receiver = VtUtf8Receiver(&mut b);
self.utf8_parser.advance(&mut receiver, byte);
b
}
}
struct VtUtf8Receiver<'a>(&'a mut bool);
impl<'a> utf8parse::Receiver for VtUtf8Receiver<'a> {
fn codepoint(&mut self, _: char) {
*self.0 = true;
}
fn invalid_sequence(&mut self) {
*self.0 = true;
}
}
#[inline]
fn is_printable_bytes(action: Action, byte: u8) -> bool {
// VT320 considered 0x7f to be `Print`able but we expect to be working in UTF-8 systems and not
// ISO Latin-1, making it DEL and non-printable
const DEL: u8 = 0x7f;
// Continuations aren't included as they may also be control codes, requiring more context
(action == Action::Print && byte != DEL)
|| action == Action::BeginUtf8
|| (action == Action::Execute && byte.is_ascii_whitespace())
}
#[cfg(test)]
mod test {
use super::*;
use proptest::prelude::*;
/// Model based off full parser
fn parser_strip(bytes: &[u8]) -> String {
#[derive(Default)]
struct Strip(String);
impl Strip {
fn with_capacity(capacity: usize) -> Self {
Self(String::with_capacity(capacity))
}
}
impl anstyle_parse::Perform for Strip {
fn print(&mut self, c: char) {
self.0.push(c);
}
fn execute(&mut self, byte: u8) {
if byte.is_ascii_whitespace() {
self.0.push(byte as char);
}
}
}
let mut stripped = Strip::with_capacity(bytes.len());
let mut parser = anstyle_parse::Parser::<anstyle_parse::DefaultCharAccumulator>::new();
for byte in bytes {
parser.advance(&mut stripped, *byte);
}
stripped.0
}
/// Model verifying incremental parsing
fn strip_char(mut s: &str) -> String {
let mut result = String::new();
let mut state = StripStr::new();
while !s.is_empty() {
let mut indices = s.char_indices();
indices.next(); // current
let offset = indices.next().map(|(i, _)| i).unwrap_or_else(|| s.len());
let (current, remainder) = s.split_at(offset);
for printable in state.strip_next(current) {
result.push_str(printable);
}
s = remainder;
}
result
}
/// Model verifying incremental parsing
fn strip_byte(s: &[u8]) -> Vec<u8> {
let mut result = Vec::new();
let mut state = StripBytes::default();
for start in 0..s.len() {
let current = &s[start..=start];
for printable in state.strip_next(current) {
result.extend(printable);
}
}
result
}
#[test]
fn test_strip_bytes_multibyte() {
let bytes = [240, 145, 141, 139];
let expected = parser_strip(&bytes);
let actual = String::from_utf8(strip_bytes(&bytes).into_vec()).unwrap();
assert_eq!(expected, actual);
}
#[test]
fn test_strip_byte_multibyte() {
let bytes = [240, 145, 141, 139];
let expected = parser_strip(&bytes);
let actual = String::from_utf8(strip_byte(&bytes).to_vec()).unwrap();
assert_eq!(expected, actual);
}
#[test]
fn test_strip_str_del() {
let input = std::str::from_utf8(&[0x7f]).unwrap();
let expected = "";
let actual = strip_str(input).to_string();
assert_eq!(expected, actual);
}
#[test]
fn test_strip_byte_del() {
let bytes = [0x7f];
let expected = "";
let actual = String::from_utf8(strip_byte(&bytes).to_vec()).unwrap();
assert_eq!(expected, actual);
}
proptest! {
#[test]
#[cfg_attr(miri, ignore)] // See https://github.com/AltSysrq/proptest/issues/253
fn strip_str_no_escapes(s in "\\PC*") {
let expected = parser_strip(s.as_bytes());
let actual = strip_str(&s).to_string();
assert_eq!(expected, actual);
}
#[test]
#[cfg_attr(miri, ignore)] // See https://github.com/AltSysrq/proptest/issues/253
fn strip_char_no_escapes(s in "\\PC*") {
let expected = parser_strip(s.as_bytes());
let actual = strip_char(&s);
assert_eq!(expected, actual);
}
#[test]
#[cfg_attr(miri, ignore)] // See https://github.com/AltSysrq/proptest/issues/253
fn strip_bytes_no_escapes(s in "\\PC*") {
dbg!(&s);
dbg!(s.as_bytes());
let expected = parser_strip(s.as_bytes());
let actual = String::from_utf8(strip_bytes(s.as_bytes()).into_vec()).unwrap();
assert_eq!(expected, actual);
}
#[test]
#[cfg_attr(miri, ignore)] // See https://github.com/AltSysrq/proptest/issues/253
fn strip_byte_no_escapes(s in "\\PC*") {
dbg!(&s);
dbg!(s.as_bytes());
let expected = parser_strip(s.as_bytes());
let actual = String::from_utf8(strip_byte(s.as_bytes()).to_vec()).unwrap();
assert_eq!(expected, actual);
}
}
}

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/// Incrementally convert to wincon calls for non-contiguous data
#[derive(Default, Clone, Debug, PartialEq, Eq)]
pub struct WinconBytes {
parser: anstyle_parse::Parser,
capture: WinconCapture,
}
impl WinconBytes {
/// Initial state
pub fn new() -> Self {
Default::default()
}
/// Strip the next segment of data
pub fn extract_next<'s>(&'s mut self, bytes: &'s [u8]) -> WinconBytesIter<'s> {
self.capture.reset();
self.capture.printable.reserve(bytes.len());
WinconBytesIter {
bytes,
parser: &mut self.parser,
capture: &mut self.capture,
}
}
}
/// See [`WinconBytes`]
#[derive(Debug, PartialEq, Eq)]
pub struct WinconBytesIter<'s> {
bytes: &'s [u8],
parser: &'s mut anstyle_parse::Parser,
capture: &'s mut WinconCapture,
}
impl<'s> Iterator for WinconBytesIter<'s> {
type Item = (anstyle::Style, String);
#[inline]
fn next(&mut self) -> Option<Self::Item> {
next_bytes(&mut self.bytes, self.parser, self.capture)
}
}
#[inline]
fn next_bytes(
bytes: &mut &[u8],
parser: &mut anstyle_parse::Parser,
capture: &mut WinconCapture,
) -> Option<(anstyle::Style, String)> {
capture.reset();
while capture.ready.is_none() {
let byte = if let Some((byte, remainder)) = (*bytes).split_first() {
*bytes = remainder;
*byte
} else {
break;
};
parser.advance(capture, byte);
}
if capture.printable.is_empty() {
return None;
}
let style = capture.ready.unwrap_or(capture.style);
Some((style, std::mem::take(&mut capture.printable)))
}
#[derive(Default, Clone, Debug, PartialEq, Eq)]
struct WinconCapture {
style: anstyle::Style,
printable: String,
ready: Option<anstyle::Style>,
}
impl WinconCapture {
fn reset(&mut self) {
self.ready = None;
}
}
impl anstyle_parse::Perform for WinconCapture {
/// Draw a character to the screen and update states.
fn print(&mut self, c: char) {
self.printable.push(c);
}
/// Execute a C0 or C1 control function.
fn execute(&mut self, byte: u8) {
if byte.is_ascii_whitespace() {
self.printable.push(byte as char);
}
}
fn csi_dispatch(
&mut self,
params: &anstyle_parse::Params,
_intermediates: &[u8],
ignore: bool,
action: u8,
) {
if ignore {
return;
}
if action != b'm' {
return;
}
let mut style = self.style;
// param/value differences are dependent on the escape code
let mut state = State::Normal;
let mut r = None;
let mut g = None;
let mut is_bg = false;
for param in params {
for value in param {
match (state, *value) {
(State::Normal, 0) => {
style = anstyle::Style::default();
break;
}
(State::Normal, 1) => {
style = style.bold();
break;
}
(State::Normal, 4) => {
style = style.underline();
break;
}
(State::Normal, 30..=37) => {
let color = to_ansi_color(value - 30).unwrap();
style = style.fg_color(Some(color.into()));
break;
}
(State::Normal, 38) => {
is_bg = false;
state = State::PrepareCustomColor;
}
(State::Normal, 39) => {
style = style.fg_color(None);
break;
}
(State::Normal, 40..=47) => {
let color = to_ansi_color(value - 40).unwrap();
style = style.bg_color(Some(color.into()));
break;
}
(State::Normal, 48) => {
is_bg = true;
state = State::PrepareCustomColor;
}
(State::Normal, 49) => {
style = style.bg_color(None);
break;
}
(State::Normal, 90..=97) => {
let color = to_ansi_color(value - 90).unwrap().bright(true);
style = style.fg_color(Some(color.into()));
break;
}
(State::Normal, 100..=107) => {
let color = to_ansi_color(value - 100).unwrap().bright(true);
style = style.bg_color(Some(color.into()));
break;
}
(State::PrepareCustomColor, 5) => {
state = State::Ansi256;
}
(State::PrepareCustomColor, 2) => {
state = State::Rgb;
r = None;
g = None;
}
(State::Ansi256, n) => {
let color = anstyle::Ansi256Color(n as u8);
if is_bg {
style = style.bg_color(Some(color.into()));
} else {
style = style.fg_color(Some(color.into()));
}
break;
}
(State::Rgb, b) => match (r, g) {
(None, _) => {
r = Some(b);
}
(Some(_), None) => {
g = Some(b);
}
(Some(r), Some(g)) => {
let color = anstyle::RgbColor(r as u8, g as u8, b as u8);
if is_bg {
style = style.bg_color(Some(color.into()));
} else {
style = style.fg_color(Some(color.into()));
}
break;
}
},
_ => {
break;
}
}
}
}
if style != self.style && !self.printable.is_empty() {
self.ready = Some(self.style);
}
self.style = style;
}
}
#[derive(Copy, Clone, PartialEq, Eq, Debug)]
enum State {
Normal,
PrepareCustomColor,
Ansi256,
Rgb,
}
fn to_ansi_color(digit: u16) -> Option<anstyle::AnsiColor> {
match digit {
0 => Some(anstyle::AnsiColor::Black),
1 => Some(anstyle::AnsiColor::Red),
2 => Some(anstyle::AnsiColor::Green),
3 => Some(anstyle::AnsiColor::Yellow),
4 => Some(anstyle::AnsiColor::Blue),
5 => Some(anstyle::AnsiColor::Magenta),
6 => Some(anstyle::AnsiColor::Cyan),
7 => Some(anstyle::AnsiColor::White),
_ => None,
}
}
#[cfg(test)]
mod test {
use super::*;
use owo_colors::OwoColorize as _;
use proptest::prelude::*;
#[track_caller]
fn verify(input: &str, expected: Vec<(anstyle::Style, &str)>) {
let expected = expected
.into_iter()
.map(|(style, value)| (style, value.to_owned()))
.collect::<Vec<_>>();
let mut state = WinconBytes::new();
let actual = state.extract_next(input.as_bytes()).collect::<Vec<_>>();
assert_eq!(expected, actual, "{input:?}");
}
#[test]
fn start() {
let input = format!("{} world!", "Hello".green().on_red());
let expected = vec![
(
anstyle::AnsiColor::Green.on(anstyle::AnsiColor::Red),
"Hello",
),
(anstyle::Style::default(), " world!"),
];
verify(&input, expected);
}
#[test]
fn middle() {
let input = format!("Hello {}!", "world".green().on_red());
let expected = vec![
(anstyle::Style::default(), "Hello "),
(
anstyle::AnsiColor::Green.on(anstyle::AnsiColor::Red),
"world",
),
(anstyle::Style::default(), "!"),
];
verify(&input, expected);
}
#[test]
fn end() {
let input = format!("Hello {}", "world!".green().on_red());
let expected = vec![
(anstyle::Style::default(), "Hello "),
(
anstyle::AnsiColor::Green.on(anstyle::AnsiColor::Red),
"world!",
),
];
verify(&input, expected);
}
#[test]
fn ansi256_colors() {
// termcolor only supports "brights" via these
let input = format!(
"Hello {}!",
"world".color(owo_colors::XtermColors::UserBrightYellow)
);
let expected = vec![
(anstyle::Style::default(), "Hello "),
(anstyle::Ansi256Color(11).on_default(), "world"),
(anstyle::Style::default(), "!"),
];
verify(&input, expected);
}
proptest! {
#[test]
#[cfg_attr(miri, ignore)] // See https://github.com/AltSysrq/proptest/issues/253
fn wincon_no_escapes(s in "\\PC*") {
let expected = if s.is_empty() {
vec![]
} else {
vec![(anstyle::Style::default(), s.clone())]
};
let mut state = WinconBytes::new();
let actual = state.extract_next(s.as_bytes()).collect::<Vec<_>>();
assert_eq!(expected, actual);
}
}
}

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use crate::stream::AsLockedWrite;
use crate::stream::RawStream;
#[cfg(feature = "auto")]
use crate::ColorChoice;
use crate::StripStream;
#[cfg(all(windows, feature = "wincon"))]
use crate::WinconStream;
/// [`std::io::Write`] that adapts ANSI escape codes to the underlying `Write`s capabilities
#[derive(Debug)]
pub struct AutoStream<S: RawStream> {
inner: StreamInner<S>,
}
#[derive(Debug)]
enum StreamInner<S: RawStream> {
PassThrough(S),
Strip(StripStream<S>),
#[cfg(all(windows, feature = "wincon"))]
Wincon(WinconStream<S>),
}
impl<S> AutoStream<S>
where
S: RawStream,
{
/// Runtime control over styling behavior
#[cfg(feature = "auto")]
#[inline]
pub fn new(raw: S, choice: ColorChoice) -> Self {
match choice {
ColorChoice::Auto => Self::auto(raw),
ColorChoice::AlwaysAnsi => Self::always_ansi(raw),
ColorChoice::Always => Self::always(raw),
ColorChoice::Never => Self::never(raw),
}
}
/// Auto-adapt for the stream's capabilities
#[cfg(feature = "auto")]
#[inline]
pub fn auto(raw: S) -> Self {
let choice = Self::choice(&raw);
debug_assert_ne!(choice, ColorChoice::Auto);
Self::new(raw, choice)
}
/// Report the desired choice for the given stream
#[cfg(feature = "auto")]
pub fn choice(raw: &S) -> ColorChoice {
choice(raw)
}
/// Force ANSI escape codes to be passed through as-is, no matter what the inner `Write`
/// supports.
#[inline]
pub fn always_ansi(raw: S) -> Self {
#[cfg(feature = "auto")]
{
if raw.is_terminal() {
let _ = anstyle_query::windows::enable_ansi_colors();
}
}
Self::always_ansi_(raw)
}
#[inline]
fn always_ansi_(raw: S) -> Self {
let inner = StreamInner::PassThrough(raw);
AutoStream { inner }
}
/// Force color, no matter what the inner `Write` supports.
#[inline]
pub fn always(raw: S) -> Self {
if cfg!(windows) {
#[cfg(feature = "auto")]
let use_wincon = raw.is_terminal()
&& !anstyle_query::windows::enable_ansi_colors().unwrap_or(true)
&& !anstyle_query::term_supports_ansi_color();
#[cfg(not(feature = "auto"))]
let use_wincon = true;
if use_wincon {
Self::wincon(raw).unwrap_or_else(|raw| Self::always_ansi_(raw))
} else {
Self::always_ansi_(raw)
}
} else {
Self::always_ansi(raw)
}
}
/// Only pass printable data to the inner `Write`.
#[inline]
pub fn never(raw: S) -> Self {
let inner = StreamInner::Strip(StripStream::new(raw));
AutoStream { inner }
}
#[inline]
fn wincon(raw: S) -> Result<Self, S> {
#[cfg(all(windows, feature = "wincon"))]
{
Ok(Self {
inner: StreamInner::Wincon(WinconStream::new(raw)),
})
}
#[cfg(not(all(windows, feature = "wincon")))]
{
Err(raw)
}
}
/// Get the wrapped [`RawStream`]
#[inline]
pub fn into_inner(self) -> S {
match self.inner {
StreamInner::PassThrough(w) => w,
StreamInner::Strip(w) => w.into_inner(),
#[cfg(all(windows, feature = "wincon"))]
StreamInner::Wincon(w) => w.into_inner(),
}
}
#[inline]
pub fn is_terminal(&self) -> bool {
match &self.inner {
StreamInner::PassThrough(w) => w.is_terminal(),
StreamInner::Strip(w) => w.is_terminal(),
#[cfg(all(windows, feature = "wincon"))]
StreamInner::Wincon(_) => true, // its only ever a terminal
}
}
/// Prefer [`AutoStream::choice`]
///
/// This doesn't report what is requested but what is currently active.
#[inline]
#[cfg(feature = "auto")]
pub fn current_choice(&self) -> ColorChoice {
match &self.inner {
StreamInner::PassThrough(_) => ColorChoice::AlwaysAnsi,
StreamInner::Strip(_) => ColorChoice::Never,
#[cfg(all(windows, feature = "wincon"))]
StreamInner::Wincon(_) => ColorChoice::Always,
}
}
}
#[cfg(feature = "auto")]
fn choice(raw: &dyn RawStream) -> ColorChoice {
let choice = ColorChoice::global();
match choice {
ColorChoice::Auto => {
let clicolor = anstyle_query::clicolor();
let clicolor_enabled = clicolor.unwrap_or(false);
let clicolor_disabled = !clicolor.unwrap_or(true);
if raw.is_terminal()
&& !anstyle_query::no_color()
&& !clicolor_disabled
&& (anstyle_query::term_supports_color()
|| clicolor_enabled
|| anstyle_query::is_ci())
|| anstyle_query::clicolor_force()
{
ColorChoice::Always
} else {
ColorChoice::Never
}
}
ColorChoice::AlwaysAnsi | ColorChoice::Always | ColorChoice::Never => choice,
}
}
impl AutoStream<std::io::Stdout> {
/// Get exclusive access to the `AutoStream`
///
/// Why?
/// - Faster performance when writing in a loop
/// - Avoid other threads interleaving output with the current thread
#[inline]
pub fn lock(self) -> AutoStream<std::io::StdoutLock<'static>> {
let inner = match self.inner {
StreamInner::PassThrough(w) => StreamInner::PassThrough(w.lock()),
StreamInner::Strip(w) => StreamInner::Strip(w.lock()),
#[cfg(all(windows, feature = "wincon"))]
StreamInner::Wincon(w) => StreamInner::Wincon(w.lock()),
};
AutoStream { inner }
}
}
impl AutoStream<std::io::Stderr> {
/// Get exclusive access to the `AutoStream`
///
/// Why?
/// - Faster performance when writing in a loop
/// - Avoid other threads interleaving output with the current thread
#[inline]
pub fn lock(self) -> AutoStream<std::io::StderrLock<'static>> {
let inner = match self.inner {
StreamInner::PassThrough(w) => StreamInner::PassThrough(w.lock()),
StreamInner::Strip(w) => StreamInner::Strip(w.lock()),
#[cfg(all(windows, feature = "wincon"))]
StreamInner::Wincon(w) => StreamInner::Wincon(w.lock()),
};
AutoStream { inner }
}
}
impl<S> std::io::Write for AutoStream<S>
where
S: RawStream + AsLockedWrite,
{
// Must forward all calls to ensure locking happens appropriately
#[inline]
fn write(&mut self, buf: &[u8]) -> std::io::Result<usize> {
match &mut self.inner {
StreamInner::PassThrough(w) => w.as_locked_write().write(buf),
StreamInner::Strip(w) => w.write(buf),
#[cfg(all(windows, feature = "wincon"))]
StreamInner::Wincon(w) => w.write(buf),
}
}
#[inline]
fn write_vectored(&mut self, bufs: &[std::io::IoSlice<'_>]) -> std::io::Result<usize> {
match &mut self.inner {
StreamInner::PassThrough(w) => w.as_locked_write().write_vectored(bufs),
StreamInner::Strip(w) => w.write_vectored(bufs),
#[cfg(all(windows, feature = "wincon"))]
StreamInner::Wincon(w) => w.write_vectored(bufs),
}
}
// is_write_vectored: nightly only
#[inline]
fn flush(&mut self) -> std::io::Result<()> {
match &mut self.inner {
StreamInner::PassThrough(w) => w.as_locked_write().flush(),
StreamInner::Strip(w) => w.flush(),
#[cfg(all(windows, feature = "wincon"))]
StreamInner::Wincon(w) => w.flush(),
}
}
#[inline]
fn write_all(&mut self, buf: &[u8]) -> std::io::Result<()> {
match &mut self.inner {
StreamInner::PassThrough(w) => w.as_locked_write().write_all(buf),
StreamInner::Strip(w) => w.write_all(buf),
#[cfg(all(windows, feature = "wincon"))]
StreamInner::Wincon(w) => w.write_all(buf),
}
}
// write_all_vectored: nightly only
#[inline]
fn write_fmt(&mut self, args: std::fmt::Arguments<'_>) -> std::io::Result<()> {
match &mut self.inner {
StreamInner::PassThrough(w) => w.as_locked_write().write_fmt(args),
StreamInner::Strip(w) => w.write_fmt(args),
#[cfg(all(windows, feature = "wincon"))]
StreamInner::Wincon(w) => w.write_fmt(args),
}
}
}

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#![allow(deprecated)]
/// In-memory [`RawStream`][crate::stream::RawStream]
#[derive(Clone, Default, Debug, PartialEq, Eq)]
#[deprecated(since = "0.6.2", note = "Use Vec")]
#[doc(hidden)]
pub struct Buffer(Vec<u8>);
impl Buffer {
#[inline]
pub fn new() -> Self {
Default::default()
}
#[inline]
pub fn with_capacity(capacity: usize) -> Self {
Self(Vec::with_capacity(capacity))
}
#[inline]
pub fn as_bytes(&self) -> &[u8] {
&self.0
}
}
impl AsRef<[u8]> for Buffer {
#[inline]
fn as_ref(&self) -> &[u8] {
self.as_bytes()
}
}
impl std::io::Write for Buffer {
#[inline]
fn write(&mut self, buf: &[u8]) -> std::io::Result<usize> {
self.0.extend(buf);
Ok(buf.len())
}
#[inline]
fn flush(&mut self) -> std::io::Result<()> {
Ok(())
}
}
#[cfg(all(windows, feature = "wincon"))]
impl anstyle_wincon::WinconStream for Buffer {
fn write_colored(
&mut self,
fg: Option<anstyle::AnsiColor>,
bg: Option<anstyle::AnsiColor>,
data: &[u8],
) -> std::io::Result<usize> {
self.0.write_colored(fg, bg, data)
}
}
#[cfg(all(windows, feature = "wincon"))]
impl anstyle_wincon::WinconStream for &'_ mut Buffer {
fn write_colored(
&mut self,
fg: Option<anstyle::AnsiColor>,
bg: Option<anstyle::AnsiColor>,
data: &[u8],
) -> std::io::Result<usize> {
(**self).write_colored(fg, bg, data)
}
}

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/// A shim which allows a [`std::io::Write`] to be implemented in terms of a [`std::fmt::Write`]
///
/// This saves off I/O errors. instead of discarding them
pub(crate) struct Adapter<W>
where
W: FnMut(&[u8]) -> std::io::Result<()>,
{
writer: W,
error: std::io::Result<()>,
}
impl<W> Adapter<W>
where
W: FnMut(&[u8]) -> std::io::Result<()>,
{
pub(crate) fn new(writer: W) -> Self {
Adapter {
writer,
error: Ok(()),
}
}
pub(crate) fn write_fmt(mut self, fmt: std::fmt::Arguments<'_>) -> std::io::Result<()> {
match std::fmt::write(&mut self, fmt) {
Ok(()) => Ok(()),
Err(..) => {
// check if the error came from the underlying `Write` or not
if self.error.is_err() {
self.error
} else {
Err(std::io::Error::new(
std::io::ErrorKind::Other,
"formatter error",
))
}
}
}
}
}
impl<W> std::fmt::Write for Adapter<W>
where
W: FnMut(&[u8]) -> std::io::Result<()>,
{
fn write_str(&mut self, s: &str) -> std::fmt::Result {
match (self.writer)(s.as_bytes()) {
Ok(()) => Ok(()),
Err(e) => {
self.error = Err(e);
Err(std::fmt::Error)
}
}
}
}

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//! **Auto-adapting [`stdout`] / [`stderr`] streams**
//!
//! *A portmanteau of "ansi stream"*
//!
//! [`AutoStream`] always accepts [ANSI escape codes](https://en.wikipedia.org/wiki/ANSI_escape_code),
//! adapting to the user's terminal's capabilities.
//!
//! Benefits
//! - Allows the caller to not be concerned with the terminal's capabilities
//! - Semver safe way of passing styled text between crates as ANSI escape codes offer more
//! compatibility than most crate APIs.
//!
//! Available styling crates:
//! - [anstyle](https://docs.rs/anstyle) for minimal runtime styling, designed to go in public APIs
//! (once it hits 1.0)
//! - [owo-colors](https://docs.rs/owo-colors) for feature-rich runtime styling
//! - [color-print](https://docs.rs/color-print) for feature-rich compile-time styling
//!
//! # Example
//!
//! ```
//! # #[cfg(feature = "auto")] {
//! use anstream::println;
//! use owo_colors::OwoColorize as _;
//!
//! // Foreground colors
//! println!("My number is {:#x}!", 10.green());
//! // Background colors
//! println!("My number is not {}!", 4.on_red());
//! # }
//! ```
//!
//! And this will correctly handle piping to a file, etc
#![cfg_attr(docsrs, feature(doc_auto_cfg))]
pub mod adapter;
pub mod stream;
mod buffer;
#[macro_use]
mod macros;
mod auto;
mod fmt;
mod strip;
#[cfg(all(windows, feature = "wincon"))]
mod wincon;
pub use auto::AutoStream;
pub use strip::StripStream;
#[cfg(all(windows, feature = "wincon"))]
pub use wincon::WinconStream;
#[allow(deprecated)]
pub use buffer::Buffer;
/// Create an ANSI escape code compatible stdout
///
/// **Note:** Call [`AutoStream::lock`] in loops to avoid the performance hit of acquiring/releasing
/// from the implicit locking in each [`std::io::Write`] call
#[cfg(feature = "auto")]
pub fn stdout() -> AutoStream<std::io::Stdout> {
let stdout = std::io::stdout();
AutoStream::auto(stdout)
}
/// Create an ANSI escape code compatible stderr
///
/// **Note:** Call [`AutoStream::lock`] in loops to avoid the performance hit of acquiring/releasing
/// from the implicit locking in each [`std::io::Write`] call
#[cfg(feature = "auto")]
pub fn stderr() -> AutoStream<std::io::Stderr> {
let stderr = std::io::stderr();
AutoStream::auto(stderr)
}
/// Selection for overriding color output
#[cfg(feature = "auto")]
pub use colorchoice::ColorChoice;

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/// Prints to [`stdout`][crate::stdout].
///
/// Equivalent to the [`println!`] macro except that a newline is not printed at
/// the end of the message.
///
/// Note that stdout is frequently line-buffered by default so it may be
/// necessary to use [`std::io::Write::flush()`] to ensure the output is emitted
/// immediately.
///
/// **NOTE:** The `print!` macro will lock the standard output on each call. If you call
/// `print!` within a hot loop, this behavior may be the bottleneck of the loop.
/// To avoid this, lock stdout with [`AutoStream::lock`][crate::AutoStream::lock]:
/// ```
/// # #[cfg(feature = "auto")] {
/// use std::io::Write as _;
///
/// let mut lock = anstream::stdout().lock();
/// write!(lock, "hello world").unwrap();
/// # }
/// ```
///
/// Use `print!` only for the primary output of your program. Use
/// [`eprint!`] instead to print error and progress messages.
///
/// **NOTE:** Not all `print!` calls will be captured in tests like [`std::print!`]
/// - Capturing will automatically be activated in test binaries
/// - Otherwise, only when the `test` feature is enabled
///
/// # Panics
///
/// Panics if writing to `stdout` fails for any reason **except** broken pipe.
///
/// Writing to non-blocking stdout can cause an error, which will lead
/// this macro to panic.
///
/// # Examples
///
/// ```
/// # #[cfg(feature = "auto")] {
/// use std::io::Write as _;
/// use anstream::print;
/// use anstream::stdout;
///
/// print!("this ");
/// print!("will ");
/// print!("be ");
/// print!("on ");
/// print!("the ");
/// print!("same ");
/// print!("line ");
///
/// stdout().flush().unwrap();
///
/// print!("this string has a newline, why not choose println! instead?\n");
///
/// stdout().flush().unwrap();
/// # }
/// ```
#[cfg(feature = "auto")]
#[macro_export]
macro_rules! print {
($($arg:tt)*) => {{
if cfg!(any(feature = "test", test)) {
use std::io::Write as _;
let stdio = std::io::stdout();
let choice = $crate::AutoStream::choice(&stdio);
let buffer = Vec::new();
let mut stream = $crate::AutoStream::new(buffer, choice);
// Ignore errors rather than panic
let _ = ::std::write!(&mut stream, $($arg)*);
let buffer = stream.into_inner();
// Should be UTF-8 but not wanting to panic
let buffer = String::from_utf8_lossy(&buffer);
::std::print!("{}", buffer)
} else {
use std::io::Write as _;
let mut stream = $crate::stdout();
match ::std::write!(&mut stream, $($arg)*) {
Err(e) if e.kind() != ::std::io::ErrorKind::BrokenPipe => {
::std::panic!("failed printing to stdout: {e}");
}
Err(_) | Ok(_) => {}
}
}
}};
}
/// Prints to [`stdout`][crate::stdout], with a newline.
///
/// On all platforms, the newline is the LINE FEED character (`\n`/`U+000A`) alone
/// (no additional CARRIAGE RETURN (`\r`/`U+000D`)).
///
/// This macro uses the same syntax as [`format!`], but writes to the standard output instead.
/// See [`std::fmt`] for more information.
///
/// **NOTE:** The `println!` macro will lock the standard output on each call. If you call
/// `println!` within a hot loop, this behavior may be the bottleneck of the loop.
/// To avoid this, lock stdout with [`AutoStream::lock`][crate::AutoStream::lock]:
/// ```
/// # #[cfg(feature = "auto")] {
/// use std::io::Write as _;
///
/// let mut lock = anstream::stdout().lock();
/// writeln!(lock, "hello world").unwrap();
/// # }
/// ```
///
/// Use `println!` only for the primary output of your program. Use
/// [`eprintln!`] instead to print error and progress messages.
///
/// **NOTE:** Not all `println!` calls will be captured in tests like [`std::println!`]
/// - Capturing will automatically be activated in test binaries
/// - Otherwise, only when the `test` feature is enabled
///
/// # Panics
///
/// Panics if writing to `stdout` fails for any reason **except** broken pipe.
///
/// Writing to non-blocking stdout can cause an error, which will lead
/// this macro to panic.
///
/// # Examples
///
/// ```
/// # #[cfg(feature = "auto")] {
/// use anstream::println;
///
/// println!(); // prints just a newline
/// println!("hello there!");
/// println!("format {} arguments", "some");
/// let local_variable = "some";
/// println!("format {local_variable} arguments");
/// # }
/// ```
#[cfg(feature = "auto")]
#[macro_export]
macro_rules! println {
() => {
$crate::print!("\n")
};
($($arg:tt)*) => {{
if cfg!(any(feature = "test", test)) {
use std::io::Write as _;
let stdio = std::io::stdout();
let choice = $crate::AutoStream::choice(&stdio);
let buffer = Vec::new();
let mut stream = $crate::AutoStream::new(buffer, choice);
// Ignore errors rather than panic
let _ = ::std::write!(&mut stream, $($arg)*);
let buffer = stream.into_inner();
// Should be UTF-8 but not wanting to panic
let buffer = String::from_utf8_lossy(&buffer);
::std::println!("{}", buffer)
} else {
use std::io::Write as _;
let mut stream = $crate::stdout();
match ::std::writeln!(&mut stream, $($arg)*) {
Err(e) if e.kind() != ::std::io::ErrorKind::BrokenPipe => {
::std::panic!("failed printing to stdout: {e}");
}
Err(_) | Ok(_) => {}
}
}
}};
}
/// Prints to [`stderr`][crate::stderr].
///
/// Equivalent to the [`print!`] macro, except that output goes to
/// `stderr` instead of `stdout`. See [`print!`] for
/// example usage.
///
/// Use `eprint!` only for error and progress messages. Use `print!`
/// instead for the primary output of your program.
///
/// **NOTE:** Not all `eprint!` calls will be captured in tests like [`std::eprint!`]
/// - Capturing will automatically be activated in test binaries
/// - Otherwise, only when the `test` feature is enabled
///
/// # Panics
///
/// Panics if writing to `stderr` fails for any reason **except** broken pipe.
///
/// Writing to non-blocking stdout can cause an error, which will lead
/// this macro to panic.
///
/// # Examples
///
/// ```
/// # #[cfg(feature = "auto")] {
/// use anstream::eprint;
///
/// eprint!("Error: Could not complete task");
/// # }
/// ```
#[cfg(feature = "auto")]
#[macro_export]
macro_rules! eprint {
($($arg:tt)*) => {{
if cfg!(any(feature = "test", test)) {
use std::io::Write as _;
let stdio = std::io::stderr();
let choice = $crate::AutoStream::choice(&stdio);
let buffer = Vec::new();
let mut stream = $crate::AutoStream::new(buffer, choice);
// Ignore errors rather than panic
let _ = ::std::write!(&mut stream, $($arg)*);
let buffer = stream.into_inner();
// Should be UTF-8 but not wanting to panic
let buffer = String::from_utf8_lossy(&buffer);
::std::eprint!("{}", buffer)
} else {
use std::io::Write as _;
let mut stream = $crate::stderr();
match ::std::write!(&mut stream, $($arg)*) {
Err(e) if e.kind() != ::std::io::ErrorKind::BrokenPipe => {
::std::panic!("failed printing to stdout: {e}");
}
Err(_) | Ok(_) => {}
}
}
}};
}
/// Prints to [`stderr`][crate::stderr], with a newline.
///
/// Equivalent to the [`println!`] macro, except that output goes to
/// `stderr` instead of `stdout`. See [`println!`] for
/// example usage.
///
/// Use `eprintln!` only for error and progress messages. Use `println!`
/// instead for the primary output of your program.
///
/// **NOTE:** Not all `eprintln!` calls will be captured in tests like [`std::eprintln!`]
/// - Capturing will automatically be activated in test binaries
/// - Otherwise, only when the `test` feature is enabled
///
/// # Panics
///
/// Panics if writing to `stderr` fails for any reason **except** broken pipe.
///
/// Writing to non-blocking stdout can cause an error, which will lead
/// this macro to panic.
///
/// # Examples
///
/// ```
/// # #[cfg(feature = "auto")] {
/// use anstream::eprintln;
///
/// eprintln!("Error: Could not complete task");
/// # }
/// ```
#[cfg(feature = "auto")]
#[macro_export]
macro_rules! eprintln {
() => {
$crate::eprint!("\n")
};
($($arg:tt)*) => {{
if cfg!(any(feature = "test", test)) {
use std::io::Write as _;
let stdio = std::io::stderr();
let choice = $crate::AutoStream::choice(&stdio);
let buffer = Vec::new();
let mut stream = $crate::AutoStream::new(buffer, choice);
// Ignore errors rather than panic
let _ = ::std::write!(&mut stream, $($arg)*);
let buffer = stream.into_inner();
// Should be UTF-8 but not wanting to panic
let buffer = String::from_utf8_lossy(&buffer);
::std::eprintln!("{}", buffer)
} else {
use std::io::Write as _;
let mut stream = $crate::stderr();
match ::std::writeln!(&mut stream, $($arg)*) {
Err(e) if e.kind() != ::std::io::ErrorKind::BrokenPipe => {
::std::panic!("failed printing to stdout: {e}");
}
Err(_) | Ok(_) => {}
}
}
}};
}
/// Panics the current thread.
///
/// This allows a program to terminate immediately and provide feedback
/// to the caller of the program.
///
/// This macro is the perfect way to assert conditions in example code and in
/// tests. `panic!` is closely tied with the `unwrap` method of both
/// [`Option`][ounwrap] and [`Result`][runwrap] enums. Both implementations call
/// `panic!` when they are set to [`None`] or [`Err`] variants.
///
/// When using `panic!()` you can specify a string payload, that is built using
/// the [`format!`] syntax. That payload is used when injecting the panic into
/// the calling Rust thread, causing the thread to panic entirely.
///
/// The behavior of the default `std` hook, i.e. the code that runs directly
/// after the panic is invoked, is to print the message payload to
/// `stderr` along with the file/line/column information of the `panic!()`
/// call. You can override the panic hook using [`std::panic::set_hook()`].
/// Inside the hook a panic can be accessed as a `&dyn Any + Send`,
/// which contains either a `&str` or `String` for regular `panic!()` invocations.
/// To panic with a value of another other type, [`panic_any`] can be used.
///
/// See also the macro [`compile_error!`], for raising errors during compilation.
///
/// # When to use `panic!` vs `Result`
///
/// The Rust language provides two complementary systems for constructing /
/// representing, reporting, propagating, reacting to, and discarding errors. These
/// responsibilities are collectively known as "error handling." `panic!` and
/// `Result` are similar in that they are each the primary interface of their
/// respective error handling systems; however, the meaning these interfaces attach
/// to their errors and the responsibilities they fulfill within their respective
/// error handling systems differ.
///
/// The `panic!` macro is used to construct errors that represent a bug that has
/// been detected in your program. With `panic!` you provide a message that
/// describes the bug and the language then constructs an error with that message,
/// reports it, and propagates it for you.
///
/// `Result` on the other hand is used to wrap other types that represent either
/// the successful result of some computation, `Ok(T)`, or error types that
/// represent an anticipated runtime failure mode of that computation, `Err(E)`.
/// `Result` is used alongside user defined types which represent the various
/// anticipated runtime failure modes that the associated computation could
/// encounter. `Result` must be propagated manually, often with the the help of the
/// `?` operator and `Try` trait, and they must be reported manually, often with
/// the help of the `Error` trait.
///
/// For more detailed information about error handling check out the [book] or the
/// [`std::result`] module docs.
///
/// [ounwrap]: Option::unwrap
/// [runwrap]: Result::unwrap
/// [`std::panic::set_hook()`]: ../std/panic/fn.set_hook.html
/// [`panic_any`]: ../std/panic/fn.panic_any.html
/// [`Box`]: ../std/boxed/struct.Box.html
/// [`Any`]: crate::any::Any
/// [`format!`]: ../std/macro.format.html
/// [book]: ../book/ch09-00-error-handling.html
/// [`std::result`]: ../std/result/index.html
///
/// # Current implementation
///
/// If the main thread panics it will terminate all your threads and end your
/// program with code `101`.
///
/// # Examples
///
/// ```should_panic
/// # #![allow(unreachable_code)]
/// use anstream::panic;
/// panic!();
/// panic!("this is a terrible mistake!");
/// panic!("this is a {} {message}", "fancy", message = "message");
/// ```
#[cfg(feature = "auto")]
#[macro_export]
macro_rules! panic {
() => {
::std::panic!()
};
($($arg:tt)*) => {{
use std::io::Write as _;
let panic_stream = std::io::stderr();
let choice = $crate::AutoStream::choice(&panic_stream);
let buffer = Vec::new();
let mut stream = $crate::AutoStream::new(buffer, choice);
// Ignore errors rather than panic
let _ = ::std::write!(&mut stream, $($arg)*);
let buffer = stream.into_inner();
// Should be UTF-8 but not wanting to panic
let buffer = String::from_utf8_lossy(&buffer).into_owned();
::std::panic!("{}", buffer)
}};
}

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//! Higher-level traits to describe writeable streams
/// Required functionality for underlying [`std::io::Write`] for adaptation
#[cfg(not(all(windows, feature = "wincon")))]
pub trait RawStream: std::io::Write + IsTerminal + private::Sealed {}
/// Required functionality for underlying [`std::io::Write`] for adaptation
#[cfg(all(windows, feature = "wincon"))]
pub trait RawStream:
std::io::Write + IsTerminal + anstyle_wincon::WinconStream + private::Sealed
{
}
impl RawStream for std::io::Stdout {}
impl RawStream for std::io::StdoutLock<'_> {}
impl RawStream for &'_ mut std::io::StdoutLock<'_> {}
impl RawStream for std::io::Stderr {}
impl RawStream for std::io::StderrLock<'_> {}
impl RawStream for &'_ mut std::io::StderrLock<'_> {}
impl RawStream for Box<dyn std::io::Write> {}
impl RawStream for &'_ mut Box<dyn std::io::Write> {}
impl RawStream for Vec<u8> {}
impl RawStream for &'_ mut Vec<u8> {}
impl RawStream for std::fs::File {}
impl RawStream for &'_ mut std::fs::File {}
#[allow(deprecated)]
impl RawStream for crate::Buffer {}
#[allow(deprecated)]
impl RawStream for &'_ mut crate::Buffer {}
pub trait IsTerminal: private::Sealed {
fn is_terminal(&self) -> bool;
}
impl IsTerminal for std::io::Stdout {
#[inline]
fn is_terminal(&self) -> bool {
std::io::IsTerminal::is_terminal(self)
}
}
impl IsTerminal for std::io::StdoutLock<'_> {
#[inline]
fn is_terminal(&self) -> bool {
std::io::IsTerminal::is_terminal(self)
}
}
impl IsTerminal for &'_ mut std::io::StdoutLock<'_> {
#[inline]
fn is_terminal(&self) -> bool {
(**self).is_terminal()
}
}
impl IsTerminal for std::io::Stderr {
#[inline]
fn is_terminal(&self) -> bool {
std::io::IsTerminal::is_terminal(self)
}
}
impl IsTerminal for std::io::StderrLock<'_> {
#[inline]
fn is_terminal(&self) -> bool {
std::io::IsTerminal::is_terminal(self)
}
}
impl IsTerminal for &'_ mut std::io::StderrLock<'_> {
#[inline]
fn is_terminal(&self) -> bool {
(**self).is_terminal()
}
}
impl IsTerminal for Box<dyn std::io::Write> {
#[inline]
fn is_terminal(&self) -> bool {
false
}
}
impl IsTerminal for &'_ mut Box<dyn std::io::Write> {
#[inline]
fn is_terminal(&self) -> bool {
false
}
}
impl IsTerminal for Vec<u8> {
#[inline]
fn is_terminal(&self) -> bool {
false
}
}
impl IsTerminal for &'_ mut Vec<u8> {
#[inline]
fn is_terminal(&self) -> bool {
false
}
}
impl IsTerminal for std::fs::File {
#[inline]
fn is_terminal(&self) -> bool {
std::io::IsTerminal::is_terminal(self)
}
}
impl IsTerminal for &'_ mut std::fs::File {
#[inline]
fn is_terminal(&self) -> bool {
(**self).is_terminal()
}
}
#[allow(deprecated)]
impl IsTerminal for crate::Buffer {
#[inline]
fn is_terminal(&self) -> bool {
false
}
}
#[allow(deprecated)]
impl IsTerminal for &'_ mut crate::Buffer {
#[inline]
fn is_terminal(&self) -> bool {
(**self).is_terminal()
}
}
pub trait AsLockedWrite: private::Sealed {
type Write<'w>: RawStream + 'w
where
Self: 'w;
fn as_locked_write(&mut self) -> Self::Write<'_>;
}
impl AsLockedWrite for std::io::Stdout {
type Write<'w> = std::io::StdoutLock<'w>;
#[inline]
fn as_locked_write(&mut self) -> Self::Write<'_> {
self.lock()
}
}
impl AsLockedWrite for std::io::StdoutLock<'static> {
type Write<'w> = &'w mut Self;
#[inline]
fn as_locked_write(&mut self) -> Self::Write<'_> {
self
}
}
impl AsLockedWrite for std::io::Stderr {
type Write<'w> = std::io::StderrLock<'w>;
#[inline]
fn as_locked_write(&mut self) -> Self::Write<'_> {
self.lock()
}
}
impl AsLockedWrite for std::io::StderrLock<'static> {
type Write<'w> = &'w mut Self;
#[inline]
fn as_locked_write(&mut self) -> Self::Write<'_> {
self
}
}
impl AsLockedWrite for Box<dyn std::io::Write> {
type Write<'w> = &'w mut Self;
#[inline]
fn as_locked_write(&mut self) -> Self::Write<'_> {
self
}
}
impl AsLockedWrite for Vec<u8> {
type Write<'w> = &'w mut Self;
#[inline]
fn as_locked_write(&mut self) -> Self::Write<'_> {
self
}
}
impl AsLockedWrite for std::fs::File {
type Write<'w> = &'w mut Self;
#[inline]
fn as_locked_write(&mut self) -> Self::Write<'_> {
self
}
}
#[allow(deprecated)]
impl AsLockedWrite for crate::Buffer {
type Write<'w> = &'w mut Self;
#[inline]
fn as_locked_write(&mut self) -> Self::Write<'_> {
self
}
}
mod private {
pub trait Sealed {}
impl Sealed for std::io::Stdout {}
impl Sealed for std::io::StdoutLock<'_> {}
impl Sealed for &'_ mut std::io::StdoutLock<'_> {}
impl Sealed for std::io::Stderr {}
impl Sealed for std::io::StderrLock<'_> {}
impl Sealed for &'_ mut std::io::StderrLock<'_> {}
impl Sealed for Box<dyn std::io::Write> {}
impl Sealed for &'_ mut Box<dyn std::io::Write> {}
impl Sealed for Vec<u8> {}
impl Sealed for &'_ mut Vec<u8> {}
impl Sealed for std::fs::File {}
impl Sealed for &'_ mut std::fs::File {}
#[allow(deprecated)]
impl Sealed for crate::Buffer {}
#[allow(deprecated)]
impl Sealed for &'_ mut crate::Buffer {}
}

219
vendor/anstream/src/strip.rs vendored Normal file
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use crate::adapter::StripBytes;
use crate::stream::AsLockedWrite;
use crate::stream::RawStream;
/// Only pass printable data to the inner `Write`
#[derive(Debug)]
pub struct StripStream<S>
where
S: RawStream,
{
raw: S,
state: StripBytes,
}
impl<S> StripStream<S>
where
S: RawStream,
{
/// Only pass printable data to the inner `Write`
#[inline]
pub fn new(raw: S) -> Self {
Self {
raw,
state: Default::default(),
}
}
/// Get the wrapped [`RawStream`]
#[inline]
pub fn into_inner(self) -> S {
self.raw
}
#[inline]
pub fn is_terminal(&self) -> bool {
self.raw.is_terminal()
}
}
impl StripStream<std::io::Stdout> {
/// Get exclusive access to the `StripStream`
///
/// Why?
/// - Faster performance when writing in a loop
/// - Avoid other threads interleaving output with the current thread
#[inline]
pub fn lock(self) -> StripStream<std::io::StdoutLock<'static>> {
StripStream {
raw: self.raw.lock(),
state: self.state,
}
}
}
impl StripStream<std::io::Stderr> {
/// Get exclusive access to the `StripStream`
///
/// Why?
/// - Faster performance when writing in a loop
/// - Avoid other threads interleaving output with the current thread
#[inline]
pub fn lock(self) -> StripStream<std::io::StderrLock<'static>> {
StripStream {
raw: self.raw.lock(),
state: self.state,
}
}
}
impl<S> std::io::Write for StripStream<S>
where
S: RawStream + AsLockedWrite,
{
// Must forward all calls to ensure locking happens appropriately
#[inline]
fn write(&mut self, buf: &[u8]) -> std::io::Result<usize> {
write(&mut self.raw.as_locked_write(), &mut self.state, buf)
}
#[inline]
fn write_vectored(&mut self, bufs: &[std::io::IoSlice<'_>]) -> std::io::Result<usize> {
let buf = bufs
.iter()
.find(|b| !b.is_empty())
.map(|b| &**b)
.unwrap_or(&[][..]);
self.write(buf)
}
// is_write_vectored: nightly only
#[inline]
fn flush(&mut self) -> std::io::Result<()> {
self.raw.as_locked_write().flush()
}
#[inline]
fn write_all(&mut self, buf: &[u8]) -> std::io::Result<()> {
write_all(&mut self.raw.as_locked_write(), &mut self.state, buf)
}
// write_all_vectored: nightly only
#[inline]
fn write_fmt(&mut self, args: std::fmt::Arguments<'_>) -> std::io::Result<()> {
write_fmt(&mut self.raw.as_locked_write(), &mut self.state, args)
}
}
fn write(
raw: &mut dyn std::io::Write,
state: &mut StripBytes,
buf: &[u8],
) -> std::io::Result<usize> {
let initial_state = state.clone();
for printable in state.strip_next(buf) {
let possible = printable.len();
let written = raw.write(printable)?;
if possible != written {
let divergence = &printable[written..];
let offset = offset_to(buf, divergence);
let consumed = &buf[offset..];
*state = initial_state;
state.strip_next(consumed).last();
return Ok(offset);
}
}
Ok(buf.len())
}
fn write_all(
raw: &mut dyn std::io::Write,
state: &mut StripBytes,
buf: &[u8],
) -> std::io::Result<()> {
for printable in state.strip_next(buf) {
raw.write_all(printable)?;
}
Ok(())
}
fn write_fmt(
raw: &mut dyn std::io::Write,
state: &mut StripBytes,
args: std::fmt::Arguments<'_>,
) -> std::io::Result<()> {
let write_all = |buf: &[u8]| write_all(raw, state, buf);
crate::fmt::Adapter::new(write_all).write_fmt(args)
}
#[inline]
fn offset_to(total: &[u8], subslice: &[u8]) -> usize {
let total = total.as_ptr();
let subslice = subslice.as_ptr();
debug_assert!(
total <= subslice,
"`Offset::offset_to` only accepts slices of `self`"
);
subslice as usize - total as usize
}
#[cfg(test)]
mod test {
use super::*;
use proptest::prelude::*;
use std::io::Write as _;
proptest! {
#[test]
#[cfg_attr(miri, ignore)] // See https://github.com/AltSysrq/proptest/issues/253
fn write_all_no_escapes(s in "\\PC*") {
let buffer = Vec::new();
let mut stream = StripStream::new(buffer);
stream.write_all(s.as_bytes()).unwrap();
let buffer = stream.into_inner();
let actual = std::str::from_utf8(buffer.as_ref()).unwrap();
assert_eq!(s, actual);
}
#[test]
#[cfg_attr(miri, ignore)] // See https://github.com/AltSysrq/proptest/issues/253
fn write_byte_no_escapes(s in "\\PC*") {
let buffer = Vec::new();
let mut stream = StripStream::new(buffer);
for byte in s.as_bytes() {
stream.write_all(&[*byte]).unwrap();
}
let buffer = stream.into_inner();
let actual = std::str::from_utf8(buffer.as_ref()).unwrap();
assert_eq!(s, actual);
}
#[test]
#[cfg_attr(miri, ignore)] // See https://github.com/AltSysrq/proptest/issues/253
fn write_all_random(s in any::<Vec<u8>>()) {
let buffer = Vec::new();
let mut stream = StripStream::new(buffer);
stream.write_all(s.as_slice()).unwrap();
let buffer = stream.into_inner();
if let Ok(actual) = std::str::from_utf8(buffer.as_ref()) {
for char in actual.chars() {
assert!(!char.is_ascii() || !char.is_control() || char.is_ascii_whitespace(), "{:?} -> {:?}: {:?}", String::from_utf8_lossy(&s), actual, char);
}
}
}
#[test]
#[cfg_attr(miri, ignore)] // See https://github.com/AltSysrq/proptest/issues/253
fn write_byte_random(s in any::<Vec<u8>>()) {
let buffer = Vec::new();
let mut stream = StripStream::new(buffer);
for byte in s.as_slice() {
stream.write_all(&[*byte]).unwrap();
}
let buffer = stream.into_inner();
if let Ok(actual) = std::str::from_utf8(buffer.as_ref()) {
for char in actual.chars() {
assert!(!char.is_ascii() || !char.is_control() || char.is_ascii_whitespace(), "{:?} -> {:?}: {:?}", String::from_utf8_lossy(&s), actual, char);
}
}
}
}
}

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use crate::adapter::WinconBytes;
use crate::stream::AsLockedWrite;
use crate::stream::RawStream;
/// Only pass printable data to the inner `Write`
#[cfg(feature = "wincon")] // here mostly for documentation purposes
#[derive(Debug)]
pub struct WinconStream<S>
where
S: RawStream,
{
raw: S,
// `WinconBytes` is especially large compared to other variants of `AutoStream`, so boxing it
// here so `AutoStream` doesn't have to discard one allocation and create another one when
// calling `AutoStream::lock`
state: Box<WinconBytes>,
}
impl<S> WinconStream<S>
where
S: RawStream,
{
/// Only pass printable data to the inner `Write`
#[inline]
pub fn new(raw: S) -> Self {
Self {
raw,
state: Default::default(),
}
}
/// Get the wrapped [`RawStream`]
#[inline]
pub fn into_inner(self) -> S {
self.raw
}
#[inline]
pub fn is_terminal(&self) -> bool {
self.raw.is_terminal()
}
}
impl WinconStream<std::io::Stdout> {
/// Get exclusive access to the `WinconStream`
///
/// Why?
/// - Faster performance when writing in a loop
/// - Avoid other threads interleaving output with the current thread
#[inline]
pub fn lock(self) -> WinconStream<std::io::StdoutLock<'static>> {
WinconStream {
raw: self.raw.lock(),
state: self.state,
}
}
}
impl WinconStream<std::io::Stderr> {
/// Get exclusive access to the `WinconStream`
///
/// Why?
/// - Faster performance when writing in a loop
/// - Avoid other threads interleaving output with the current thread
#[inline]
pub fn lock(self) -> WinconStream<std::io::StderrLock<'static>> {
WinconStream {
raw: self.raw.lock(),
state: self.state,
}
}
}
impl<S> std::io::Write for WinconStream<S>
where
S: RawStream + AsLockedWrite,
{
// Must forward all calls to ensure locking happens appropriately
#[inline]
fn write(&mut self, buf: &[u8]) -> std::io::Result<usize> {
write(&mut self.raw.as_locked_write(), &mut self.state, buf)
}
#[inline]
fn write_vectored(&mut self, bufs: &[std::io::IoSlice<'_>]) -> std::io::Result<usize> {
let buf = bufs
.iter()
.find(|b| !b.is_empty())
.map(|b| &**b)
.unwrap_or(&[][..]);
self.write(buf)
}
// is_write_vectored: nightly only
#[inline]
fn flush(&mut self) -> std::io::Result<()> {
self.raw.as_locked_write().flush()
}
#[inline]
fn write_all(&mut self, buf: &[u8]) -> std::io::Result<()> {
write_all(&mut self.raw.as_locked_write(), &mut self.state, buf)
}
// write_all_vectored: nightly only
#[inline]
fn write_fmt(&mut self, args: std::fmt::Arguments<'_>) -> std::io::Result<()> {
write_fmt(&mut self.raw.as_locked_write(), &mut self.state, args)
}
}
fn write(raw: &mut dyn RawStream, state: &mut WinconBytes, buf: &[u8]) -> std::io::Result<usize> {
for (style, printable) in state.extract_next(buf) {
let fg = style.get_fg_color().and_then(cap_wincon_color);
let bg = style.get_bg_color().and_then(cap_wincon_color);
let written = raw.write_colored(fg, bg, printable.as_bytes())?;
let possible = printable.len();
if possible != written {
// HACK: Unsupported atm
break;
}
}
Ok(buf.len())
}
fn write_all(raw: &mut dyn RawStream, state: &mut WinconBytes, buf: &[u8]) -> std::io::Result<()> {
for (style, printable) in state.extract_next(buf) {
let mut buf = printable.as_bytes();
let fg = style.get_fg_color().and_then(cap_wincon_color);
let bg = style.get_bg_color().and_then(cap_wincon_color);
while !buf.is_empty() {
match raw.write_colored(fg, bg, buf) {
Ok(0) => {
return Err(std::io::Error::new(
std::io::ErrorKind::WriteZero,
"failed to write whole buffer",
));
}
Ok(n) => buf = &buf[n..],
Err(ref e) if e.kind() == std::io::ErrorKind::Interrupted => {}
Err(e) => return Err(e),
}
}
}
Ok(())
}
fn write_fmt(
raw: &mut dyn RawStream,
state: &mut WinconBytes,
args: std::fmt::Arguments<'_>,
) -> std::io::Result<()> {
let write_all = |buf: &[u8]| write_all(raw, state, buf);
crate::fmt::Adapter::new(write_all).write_fmt(args)
}
fn cap_wincon_color(color: anstyle::Color) -> Option<anstyle::AnsiColor> {
match color {
anstyle::Color::Ansi(c) => Some(c),
anstyle::Color::Ansi256(c) => c.into_ansi(),
anstyle::Color::Rgb(_) => None,
}
}
#[cfg(test)]
mod test {
use super::*;
use proptest::prelude::*;
use std::io::Write as _;
proptest! {
#[test]
#[cfg_attr(miri, ignore)] // See https://github.com/AltSysrq/proptest/issues/253
fn write_all_no_escapes(s in "\\PC*") {
let buffer = Vec::new();
let mut stream = WinconStream::new(buffer);
stream.write_all(s.as_bytes()).unwrap();
let buffer = stream.into_inner();
let actual = std::str::from_utf8(buffer.as_ref()).unwrap();
assert_eq!(s, actual);
}
#[test]
#[cfg_attr(miri, ignore)] // See https://github.com/AltSysrq/proptest/issues/253
fn write_byte_no_escapes(s in "\\PC*") {
let buffer = Vec::new();
let mut stream = WinconStream::new(buffer);
for byte in s.as_bytes() {
stream.write_all(&[*byte]).unwrap();
}
let buffer = stream.into_inner();
let actual = std::str::from_utf8(buffer.as_ref()).unwrap();
assert_eq!(s, actual);
}
#[test]
#[cfg_attr(miri, ignore)] // See https://github.com/AltSysrq/proptest/issues/253
fn write_all_random(s in any::<Vec<u8>>()) {
let buffer = Vec::new();
let mut stream = WinconStream::new(buffer);
stream.write_all(s.as_slice()).unwrap();
}
#[test]
#[cfg_attr(miri, ignore)] // See https://github.com/AltSysrq/proptest/issues/253
fn write_byte_random(s in any::<Vec<u8>>()) {
let buffer = Vec::new();
let mut stream = WinconStream::new(buffer);
for byte in s.as_slice() {
stream.write_all(&[*byte]).unwrap();
}
}
}
}

1
vendor/anstyle-parse/.cargo-checksum.json vendored Normal file
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@ -0,0 +1 @@
{"files":{"Cargo.lock":"7f68b5328c460caf1d2198b10fe1761e5f0282262f92d04076b30b25539970b0","Cargo.toml":"2834f39b7169c03b03da1e209f56133783ce00ea64d5f2c14381d93984ca20bf","LICENSE-APACHE":"b40930bbcf80744c86c46a12bc9da056641d722716c378f5659b9e555ef833e1","LICENSE-MIT":"c1d4bc00896473e0109ccb4c3c7d21addb55a4ff1a644be204dcfce26612af2a","README.md":"abc82171d436ee0eb221838e8d21a21a2e392504e87f0c130b5eca6a35671e1e","benches/parse.rs":"336c808d51c90db2497fa87e571df7f71c844a1b09be88839fe4255066c632f4","examples/parselog.rs":"58b7db739deed701aa0ab386d0d0c1772511b8aed1c08d31ec5b35a1c8cd4321","src/lib.rs":"c89f2afa0e982276dc47ca8d8a76d47516aa39aa9d3354254c87fdbf2f8ef4cc","src/params.rs":"8cfef4e2ab1961ca2d9f210da553fc6ac64bb6dbd03321f0ee7d6089ab45389c","src/state/codegen.rs":"8530124c8f998f391e47950f130590376321dcade810990f4312c3b1c0a61968","src/state/definitions.rs":"dc3dbb3244def74430a72b0108f019e22cc02e0ae5f563ee14d38300ff82b814","src/state/mod.rs":"be07c2ea393a971dd54117dc2ce8a3ffb5b803cb557ab468389b74570855fa37","src/state/table.rs":"673b7e9242c5248efc076086cc6923578ec2f059c0c26da21363528e20e4285c"},"package":"c75ac65da39e5fe5ab759307499ddad880d724eed2f6ce5b5e8a26f4f387928c"}

1202
vendor/anstyle-parse/Cargo.lock generated vendored Normal file
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108
vendor/anstyle-parse/Cargo.toml vendored Normal file
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# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
#
# When uploading crates to the registry Cargo will automatically
# "normalize" Cargo.toml files for maximal compatibility
# with all versions of Cargo and also rewrite `path` dependencies
# to registry (e.g., crates.io) dependencies.
#
# If you are reading this file be aware that the original Cargo.toml
# will likely look very different (and much more reasonable).
# See Cargo.toml.orig for the original contents.
[package]
edition = "2021"
rust-version = "1.70.0"
name = "anstyle-parse"
version = "0.2.3"
include = [
"build.rs",
"src/**/*",
"Cargo.toml",
"Cargo.lock",
"LICENSE*",
"README.md",
"benches/**/*",
"examples/**/*",
]
description = "Parse ANSI Style Escapes"
homepage = "https://github.com/rust-cli/anstyle"
readme = "README.md"
keywords = [
"ansi",
"terminal",
"color",
"vte",
]
categories = ["command-line-interface"]
license = "MIT OR Apache-2.0"
repository = "https://github.com/rust-cli/anstyle.git"
[[package.metadata.release.pre-release-replacements]]
file = "CHANGELOG.md"
min = 1
replace = "{{version}}"
search = "Unreleased"
[[package.metadata.release.pre-release-replacements]]
exactly = 1
file = "CHANGELOG.md"
replace = "...{{tag_name}}"
search = '\.\.\.HEAD'
[[package.metadata.release.pre-release-replacements]]
file = "CHANGELOG.md"
min = 1
replace = "{{date}}"
search = "ReleaseDate"
[[package.metadata.release.pre-release-replacements]]
exactly = 1
file = "CHANGELOG.md"
replace = """
<!-- next-header -->
## [Unreleased] - ReleaseDate
"""
search = "<!-- next-header -->"
[[package.metadata.release.pre-release-replacements]]
exactly = 1
file = "CHANGELOG.md"
replace = """
<!-- next-url -->
[Unreleased]: https://github.com/rust-cli/anstyle/compare/{{tag_name}}...HEAD"""
search = "<!-- next-url -->"
[[bench]]
name = "parse"
harness = false
[dependencies.arrayvec]
version = "0.7.2"
optional = true
default-features = false
[dependencies.utf8parse]
version = "0.2.1"
optional = true
[dev-dependencies.codegenrs]
version = "3.0.1"
default-features = false
[dev-dependencies.criterion]
version = "0.5.1"
[dev-dependencies.proptest]
version = "1.4.0"
[dev-dependencies.snapbox]
version = "0.4.14"
features = ["path"]
[dev-dependencies.vte_generate_state_changes]
version = "0.1.1"
[features]
core = ["dep:arrayvec"]
default = ["utf8"]
utf8 = ["dep:utf8parse"]

201
vendor/anstyle-parse/LICENSE-APACHE vendored Normal file
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Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
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other entities that control, are controlled by, or are under common
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direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
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including but not limited to software source code, documentation
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not limited to compiled object code, generated documentation,
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"Work" shall mean the work of authorship, whether in Source or
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incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "{}"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright {yyyy} {name of copyright owner}
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
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Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

25
vendor/anstyle-parse/LICENSE-MIT vendored Normal file
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Copyright (c) 2016 Joe Wilm and individual contributors
Permission is hereby granted, free of charge, to any
person obtaining a copy of this software and associated
documentation files (the "Software"), to deal in the
Software without restriction, including without
limitation the rights to use, copy, modify, merge,
publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software
is furnished to do so, subject to the following
conditions:
The above copyright notice and this permission notice
shall be included in all copies or substantial portions
of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.

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# anstyle-parse
> Parse [Parse ANSI Style Escapes](https://vt100.net/emu/dec_ansi_parser)
[![Documentation](https://img.shields.io/badge/docs-master-blue.svg)][Documentation]
![License](https://img.shields.io/crates/l/anstyle-parse.svg)
[![Crates Status](https://img.shields.io/crates/v/anstyle-parse.svg)](https://crates.io/crates/anstyle-parse)
## License
Licensed under either of
* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
* MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
at your option.
### Contribution
Unless you explicitly state otherwise, any contribution intentionally
submitted for inclusion in the work by you, as defined in the Apache-2.0
license, shall be dual licensed as above, without any additional terms or
conditions.
### Special Thanks
[chrisduerr](https://github.com/alacritty/vte/commits?author=chrisduerr) and the
[alacritty project](https://github.com/alacritty/alacritty) for
[vte](https://crates.io/crates/vte) which
[this was forked from](https://github.com/alacritty/vte/issues/82)
[Crates.io]: https://crates.io/crates/anstyle-parse
[Documentation]: https://docs.rs/anstyle-parse

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use criterion::{black_box, Criterion};
use anstyle_parse::*;
struct BenchDispatcher;
impl Perform for BenchDispatcher {
fn print(&mut self, c: char) {
black_box(c);
}
fn execute(&mut self, byte: u8) {
black_box(byte);
}
fn hook(&mut self, params: &Params, intermediates: &[u8], ignore: bool, c: u8) {
black_box((params, intermediates, ignore, c));
}
fn put(&mut self, byte: u8) {
black_box(byte);
}
fn osc_dispatch(&mut self, params: &[&[u8]], bell_terminated: bool) {
black_box((params, bell_terminated));
}
fn csi_dispatch(&mut self, params: &Params, intermediates: &[u8], ignore: bool, c: u8) {
black_box((params, intermediates, ignore, c));
}
fn esc_dispatch(&mut self, intermediates: &[u8], ignore: bool, byte: u8) {
black_box((intermediates, ignore, byte));
}
}
#[derive(Default)]
struct Strip(String);
impl Strip {
fn with_capacity(capacity: usize) -> Self {
Self(String::with_capacity(capacity))
}
}
impl Perform for Strip {
fn print(&mut self, c: char) {
self.0.push(c);
}
fn execute(&mut self, byte: u8) {
if byte.is_ascii_whitespace() {
self.0.push(byte as char);
}
}
}
fn strip_str(content: &str) -> String {
use anstyle_parse::state::state_change;
use anstyle_parse::state::Action;
use anstyle_parse::state::State;
#[inline]
fn is_utf8_continuation(b: u8) -> bool {
matches!(b, 0x80..=0xbf)
}
#[inline]
fn is_printable(action: Action, byte: u8) -> bool {
action == Action::Print
|| action == Action::BeginUtf8
// since we know the input is valid UTF-8, the only thing we can do with
// continuations is to print them
|| is_utf8_continuation(byte)
|| (action == Action::Execute && byte.is_ascii_whitespace())
}
let mut stripped = Vec::with_capacity(content.len());
let mut bytes = content.as_bytes();
while !bytes.is_empty() {
let offset = bytes.iter().copied().position(|b| {
let (_next_state, action) = state_change(State::Ground, b);
!is_printable(action, b)
});
let (printable, next) = bytes.split_at(offset.unwrap_or(bytes.len()));
stripped.extend(printable);
bytes = next;
let mut state = State::Ground;
let offset = bytes.iter().copied().position(|b| {
let (next_state, action) = state_change(state, b);
if next_state != State::Anywhere {
state = next_state;
}
is_printable(action, b)
});
let (_, next) = bytes.split_at(offset.unwrap_or(bytes.len()));
bytes = next;
}
String::from_utf8(stripped).unwrap()
}
fn parse(c: &mut Criterion) {
for (name, content) in [
#[cfg(feature = "utf8")]
("demo.vte", &include_bytes!("../tests/demo.vte")[..]),
("rg_help.vte", &include_bytes!("../tests/rg_help.vte")[..]),
("rg_linus.vte", &include_bytes!("../tests/rg_linus.vte")[..]),
(
"state_changes",
&b"\x1b]2;X\x1b\\ \x1b[0m \x1bP0@\x1b\\"[..],
),
] {
// Make sure the comparison is fair
if let Ok(content) = std::str::from_utf8(content) {
let mut stripped = Strip::with_capacity(content.len());
let mut parser = Parser::<DefaultCharAccumulator>::new();
for byte in content.as_bytes() {
parser.advance(&mut stripped, *byte);
}
assert_eq!(stripped.0, strip_str(content));
}
let mut group = c.benchmark_group(name);
group.bench_function("advance", |b| {
b.iter(|| {
let mut dispatcher = BenchDispatcher;
let mut parser = Parser::<DefaultCharAccumulator>::new();
for byte in content {
parser.advance(&mut dispatcher, *byte);
}
})
});
group.bench_function("advance_strip", |b| {
b.iter(|| {
let mut stripped = Strip::with_capacity(content.len());
let mut parser = Parser::<DefaultCharAccumulator>::new();
for byte in content {
parser.advance(&mut stripped, *byte);
}
black_box(stripped.0)
})
});
group.bench_function("state_change", |b| {
b.iter(|| {
let mut state = anstyle_parse::state::State::default();
for byte in content {
let (next_state, action) = anstyle_parse::state::state_change(state, *byte);
state = next_state;
black_box(action);
}
})
});
if let Ok(content) = std::str::from_utf8(content) {
group.bench_function("state_change_strip_str", |b| {
b.iter(|| {
let stripped = strip_str(content);
black_box(stripped)
})
});
}
}
}
criterion::criterion_group!(benches, parse);
criterion::criterion_main!(benches);

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//! Parse input from stdin and log actions on stdout
use std::io::{self, Read};
use anstyle_parse::{DefaultCharAccumulator, Params, Parser, Perform};
/// A type implementing Perform that just logs actions
struct Log;
impl Perform for Log {
fn print(&mut self, c: char) {
println!("[print] {:?}", c);
}
fn execute(&mut self, byte: u8) {
println!("[execute] {:02x}", byte);
}
fn hook(&mut self, params: &Params, intermediates: &[u8], ignore: bool, c: u8) {
println!(
"[hook] params={:?}, intermediates={:?}, ignore={:?}, char={:?}",
params, intermediates, ignore, c
);
}
fn put(&mut self, byte: u8) {
println!("[put] {:02x}", byte);
}
fn unhook(&mut self) {
println!("[unhook]");
}
fn osc_dispatch(&mut self, params: &[&[u8]], bell_terminated: bool) {
println!(
"[osc_dispatch] params={:?} bell_terminated={}",
params, bell_terminated
);
}
fn csi_dispatch(&mut self, params: &Params, intermediates: &[u8], ignore: bool, c: u8) {
println!(
"[csi_dispatch] params={:#?}, intermediates={:?}, ignore={:?}, char={:?}",
params, intermediates, ignore, c
);
}
fn esc_dispatch(&mut self, intermediates: &[u8], ignore: bool, byte: u8) {
println!(
"[esc_dispatch] intermediates={:?}, ignore={:?}, byte={:02x}",
intermediates, ignore, byte
);
}
}
fn main() {
let input = io::stdin();
let mut handle = input.lock();
let mut statemachine = Parser::<DefaultCharAccumulator>::new();
let mut performer = Log;
let mut buf = [0; 2048];
loop {
match handle.read(&mut buf) {
Ok(0) => break,
Ok(n) => {
for byte in &buf[..n] {
statemachine.advance(&mut performer, *byte);
}
}
Err(err) => {
println!("err: {}", err);
break;
}
}
}
}

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//! Parser for implementing virtual terminal emulators
//!
//! [`Parser`] is implemented according to [Paul Williams' ANSI parser
//! state machine]. The state machine doesn't assign meaning to the parsed data
//! and is thus not itself sufficient for writing a terminal emulator. Instead,
//! it is expected that an implementation of [`Perform`] is provided which does
//! something useful with the parsed data. The [`Parser`] handles the book
//! keeping, and the [`Perform`] gets to simply handle actions.
//!
//! # Examples
//!
//! For an example of using the [`Parser`] please see the examples folder. The example included
//! there simply logs all the actions [`Perform`] does. One quick thing to see it in action is to
//! pipe `vim` into it
//!
//! ```sh
//! cargo build --release --example parselog
//! vim | target/release/examples/parselog
//! ```
//!
//! Just type `:q` to exit.
//!
//! # Differences from original state machine description
//!
//! * UTF-8 Support for Input
//! * OSC Strings can be terminated by 0x07
//! * Only supports 7-bit codes. Some 8-bit codes are still supported, but they no longer work in
//! all states.
//!
//! [Paul Williams' ANSI parser state machine]: https://vt100.net/emu/dec_ansi_parser
#![cfg_attr(not(test), no_std)]
#[cfg(not(feature = "core"))]
extern crate alloc;
use core::mem::MaybeUninit;
#[cfg(feature = "core")]
use arrayvec::ArrayVec;
#[cfg(feature = "utf8")]
use utf8parse as utf8;
mod params;
pub mod state;
pub use params::{Params, ParamsIter};
use state::{state_change, Action, State};
const MAX_INTERMEDIATES: usize = 2;
const MAX_OSC_PARAMS: usize = 16;
#[cfg(feature = "core")]
const MAX_OSC_RAW: usize = 1024;
/// Parser for raw _VTE_ protocol which delegates actions to a [`Perform`]
#[derive(Default, Clone, Debug, PartialEq, Eq)]
pub struct Parser<C = DefaultCharAccumulator> {
state: State,
intermediates: [u8; MAX_INTERMEDIATES],
intermediate_idx: usize,
params: Params,
param: u16,
#[cfg(feature = "core")]
osc_raw: ArrayVec<u8, MAX_OSC_RAW>,
#[cfg(not(feature = "core"))]
osc_raw: alloc::vec::Vec<u8>,
osc_params: [(usize, usize); MAX_OSC_PARAMS],
osc_num_params: usize,
ignoring: bool,
utf8_parser: C,
}
impl<C> Parser<C>
where
C: CharAccumulator,
{
/// Create a new Parser
pub fn new() -> Parser {
Parser::default()
}
#[inline]
fn params(&self) -> &Params {
&self.params
}
#[inline]
fn intermediates(&self) -> &[u8] {
&self.intermediates[..self.intermediate_idx]
}
/// Advance the parser state
///
/// Requires a [`Perform`] in case `byte` triggers an action
#[inline]
pub fn advance<P: Perform>(&mut self, performer: &mut P, byte: u8) {
// Utf8 characters are handled out-of-band.
if let State::Utf8 = self.state {
self.process_utf8(performer, byte);
return;
}
let (state, action) = state_change(self.state, byte);
self.perform_state_change(performer, state, action, byte);
}
#[inline]
fn process_utf8<P>(&mut self, performer: &mut P, byte: u8)
where
P: Perform,
{
if let Some(c) = self.utf8_parser.add(byte) {
performer.print(c);
self.state = State::Ground;
}
}
#[inline]
fn perform_state_change<P>(&mut self, performer: &mut P, state: State, action: Action, byte: u8)
where
P: Perform,
{
match state {
State::Anywhere => {
// Just run the action
self.perform_action(performer, action, byte);
}
state => {
match self.state {
State::DcsPassthrough => {
self.perform_action(performer, Action::Unhook, byte);
}
State::OscString => {
self.perform_action(performer, Action::OscEnd, byte);
}
_ => (),
}
match action {
Action::Nop => (),
action => {
self.perform_action(performer, action, byte);
}
}
match state {
State::CsiEntry | State::DcsEntry | State::Escape => {
self.perform_action(performer, Action::Clear, byte);
}
State::DcsPassthrough => {
self.perform_action(performer, Action::Hook, byte);
}
State::OscString => {
self.perform_action(performer, Action::OscStart, byte);
}
_ => (),
}
// Assume the new state
self.state = state;
}
}
}
/// Separate method for osc_dispatch that borrows self as read-only
///
/// The aliasing is needed here for multiple slices into self.osc_raw
#[inline]
fn osc_dispatch<P: Perform>(&self, performer: &mut P, byte: u8) {
let mut slices: [MaybeUninit<&[u8]>; MAX_OSC_PARAMS] =
unsafe { MaybeUninit::uninit().assume_init() };
for (i, slice) in slices.iter_mut().enumerate().take(self.osc_num_params) {
let indices = self.osc_params[i];
*slice = MaybeUninit::new(&self.osc_raw[indices.0..indices.1]);
}
unsafe {
let num_params = self.osc_num_params;
let params = &slices[..num_params] as *const [MaybeUninit<&[u8]>] as *const [&[u8]];
performer.osc_dispatch(&*params, byte == 0x07);
}
}
#[inline]
fn perform_action<P: Perform>(&mut self, performer: &mut P, action: Action, byte: u8) {
match action {
Action::Print => performer.print(byte as char),
Action::Execute => performer.execute(byte),
Action::Hook => {
if self.params.is_full() {
self.ignoring = true;
} else {
self.params.push(self.param);
}
performer.hook(self.params(), self.intermediates(), self.ignoring, byte);
}
Action::Put => performer.put(byte),
Action::OscStart => {
self.osc_raw.clear();
self.osc_num_params = 0;
}
Action::OscPut => {
#[cfg(feature = "core")]
{
if self.osc_raw.is_full() {
return;
}
}
let idx = self.osc_raw.len();
// Param separator
if byte == b';' {
let param_idx = self.osc_num_params;
match param_idx {
// Only process up to MAX_OSC_PARAMS
MAX_OSC_PARAMS => return,
// First param is special - 0 to current byte index
0 => {
self.osc_params[param_idx] = (0, idx);
}
// All other params depend on previous indexing
_ => {
let prev = self.osc_params[param_idx - 1];
let begin = prev.1;
self.osc_params[param_idx] = (begin, idx);
}
}
self.osc_num_params += 1;
} else {
self.osc_raw.push(byte);
}
}
Action::OscEnd => {
let param_idx = self.osc_num_params;
let idx = self.osc_raw.len();
match param_idx {
// Finish last parameter if not already maxed
MAX_OSC_PARAMS => (),
// First param is special - 0 to current byte index
0 => {
self.osc_params[param_idx] = (0, idx);
self.osc_num_params += 1;
}
// All other params depend on previous indexing
_ => {
let prev = self.osc_params[param_idx - 1];
let begin = prev.1;
self.osc_params[param_idx] = (begin, idx);
self.osc_num_params += 1;
}
}
self.osc_dispatch(performer, byte);
}
Action::Unhook => performer.unhook(),
Action::CsiDispatch => {
if self.params.is_full() {
self.ignoring = true;
} else {
self.params.push(self.param);
}
performer.csi_dispatch(self.params(), self.intermediates(), self.ignoring, byte);
}
Action::EscDispatch => {
performer.esc_dispatch(self.intermediates(), self.ignoring, byte);
}
Action::Collect => {
if self.intermediate_idx == MAX_INTERMEDIATES {
self.ignoring = true;
} else {
self.intermediates[self.intermediate_idx] = byte;
self.intermediate_idx += 1;
}
}
Action::Param => {
if self.params.is_full() {
self.ignoring = true;
return;
}
if byte == b';' {
self.params.push(self.param);
self.param = 0;
} else if byte == b':' {
self.params.extend(self.param);
self.param = 0;
} else {
// Continue collecting bytes into param
self.param = self.param.saturating_mul(10);
self.param = self.param.saturating_add((byte - b'0') as u16);
}
}
Action::Clear => {
// Reset everything on ESC/CSI/DCS entry
self.intermediate_idx = 0;
self.ignoring = false;
self.param = 0;
self.params.clear();
}
Action::BeginUtf8 => self.process_utf8(performer, byte),
Action::Ignore => (),
Action::Nop => (),
}
}
}
/// Build a `char` out of bytes
pub trait CharAccumulator: Default {
/// Build a `char` out of bytes
///
/// Return `None` when more data is needed
fn add(&mut self, byte: u8) -> Option<char>;
}
#[cfg(feature = "utf8")]
pub type DefaultCharAccumulator = Utf8Parser;
#[cfg(not(feature = "utf8"))]
pub type DefaultCharAccumulator = AsciiParser;
/// Only allow parsing 7-bit ASCII
#[derive(Default, Clone, Debug, PartialEq, Eq)]
pub struct AsciiParser;
impl CharAccumulator for AsciiParser {
fn add(&mut self, _byte: u8) -> Option<char> {
unreachable!("multi-byte UTF8 characters are unsupported")
}
}
/// Allow parsing UTF-8
#[cfg(feature = "utf8")]
#[derive(Default, Clone, Debug, PartialEq, Eq)]
pub struct Utf8Parser {
utf8_parser: utf8::Parser,
}
#[cfg(feature = "utf8")]
impl CharAccumulator for Utf8Parser {
fn add(&mut self, byte: u8) -> Option<char> {
let mut c = None;
let mut receiver = VtUtf8Receiver(&mut c);
self.utf8_parser.advance(&mut receiver, byte);
c
}
}
#[cfg(feature = "utf8")]
struct VtUtf8Receiver<'a>(&'a mut Option<char>);
#[cfg(feature = "utf8")]
impl<'a> utf8::Receiver for VtUtf8Receiver<'a> {
fn codepoint(&mut self, c: char) {
*self.0 = Some(c);
}
fn invalid_sequence(&mut self) {
*self.0 = Some('<27>');
}
}
/// Performs actions requested by the [`Parser`]
///
/// Actions in this case mean, for example, handling a CSI escape sequence describing cursor
/// movement, or simply printing characters to the screen.
///
/// The methods on this type correspond to actions described in
/// <http://vt100.net/emu/dec_ansi_parser>. I've done my best to describe them in
/// a useful way in my own words for completeness, but the site should be
/// referenced if something isn't clear. If the site disappears at some point in
/// the future, consider checking archive.org.
pub trait Perform {
/// Draw a character to the screen and update states.
fn print(&mut self, _c: char) {}
/// Execute a C0 or C1 control function.
fn execute(&mut self, _byte: u8) {}
/// Invoked when a final character arrives in first part of device control string.
///
/// The control function should be determined from the private marker, final character, and
/// execute with a parameter list. A handler should be selected for remaining characters in the
/// string; the handler function should subsequently be called by `put` for every character in
/// the control string.
///
/// The `ignore` flag indicates that more than two intermediates arrived and
/// subsequent characters were ignored.
fn hook(&mut self, _params: &Params, _intermediates: &[u8], _ignore: bool, _action: u8) {}
/// Pass bytes as part of a device control string to the handle chosen in `hook`. C0 controls
/// will also be passed to the handler.
fn put(&mut self, _byte: u8) {}
/// Called when a device control string is terminated.
///
/// The previously selected handler should be notified that the DCS has
/// terminated.
fn unhook(&mut self) {}
/// Dispatch an operating system command.
fn osc_dispatch(&mut self, _params: &[&[u8]], _bell_terminated: bool) {}
/// A final character has arrived for a CSI sequence
///
/// The `ignore` flag indicates that either more than two intermediates arrived
/// or the number of parameters exceeded the maximum supported length,
/// and subsequent characters were ignored.
fn csi_dispatch(
&mut self,
_params: &Params,
_intermediates: &[u8],
_ignore: bool,
_action: u8,
) {
}
/// The final character of an escape sequence has arrived.
///
/// The `ignore` flag indicates that more than two intermediates arrived and
/// subsequent characters were ignored.
fn esc_dispatch(&mut self, _intermediates: &[u8], _ignore: bool, _byte: u8) {}
}

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//! Fixed size parameters list with optional subparameters.
use core::fmt::{self, Debug, Formatter};
pub(crate) const MAX_PARAMS: usize = 32;
#[derive(Default, Clone, PartialEq, Eq)]
pub struct Params {
/// Number of subparameters for each parameter.
///
/// For each entry in the `params` slice, this stores the length of the param as number of
/// subparams at the same index as the param in the `params` slice.
///
/// At the subparam positions the length will always be `0`.
subparams: [u8; MAX_PARAMS],
/// All parameters and subparameters.
params: [u16; MAX_PARAMS],
/// Number of suparameters in the current parameter.
current_subparams: u8,
/// Total number of parameters and subparameters.
len: usize,
}
impl Params {
/// Returns the number of parameters.
#[inline]
pub fn len(&self) -> usize {
self.len
}
/// Returns `true` if there are no parameters present.
#[inline]
pub fn is_empty(&self) -> bool {
self.len == 0
}
/// Returns an iterator over all parameters and subparameters.
#[inline]
pub fn iter(&self) -> ParamsIter<'_> {
ParamsIter::new(self)
}
/// Returns `true` if there is no more space for additional parameters.
#[inline]
pub(crate) fn is_full(&self) -> bool {
self.len == MAX_PARAMS
}
/// Clear all parameters.
#[inline]
pub(crate) fn clear(&mut self) {
self.current_subparams = 0;
self.len = 0;
}
/// Add an additional parameter.
#[inline]
pub(crate) fn push(&mut self, item: u16) {
self.subparams[self.len - self.current_subparams as usize] = self.current_subparams + 1;
self.params[self.len] = item;
self.current_subparams = 0;
self.len += 1;
}
/// Add an additional subparameter to the current parameter.
#[inline]
pub(crate) fn extend(&mut self, item: u16) {
self.subparams[self.len - self.current_subparams as usize] = self.current_subparams + 1;
self.params[self.len] = item;
self.current_subparams += 1;
self.len += 1;
}
}
impl<'a> IntoIterator for &'a Params {
type IntoIter = ParamsIter<'a>;
type Item = &'a [u16];
fn into_iter(self) -> Self::IntoIter {
self.iter()
}
}
/// Immutable subparameter iterator.
pub struct ParamsIter<'a> {
params: &'a Params,
index: usize,
}
impl<'a> ParamsIter<'a> {
fn new(params: &'a Params) -> Self {
Self { params, index: 0 }
}
}
impl<'a> Iterator for ParamsIter<'a> {
type Item = &'a [u16];
fn next(&mut self) -> Option<Self::Item> {
if self.index >= self.params.len() {
return None;
}
// Get all subparameters for the current parameter.
let num_subparams = self.params.subparams[self.index];
let param = &self.params.params[self.index..self.index + num_subparams as usize];
// Jump to the next parameter.
self.index += num_subparams as usize;
Some(param)
}
fn size_hint(&self) -> (usize, Option<usize>) {
let remaining = self.params.len() - self.index;
(remaining, Some(remaining))
}
}
impl Debug for Params {
fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
write!(f, "[")?;
for (i, param) in self.iter().enumerate() {
if i != 0 {
write!(f, ";")?;
}
for (i, subparam) in param.iter().enumerate() {
if i != 0 {
write!(f, ":")?;
}
subparam.fmt(f)?;
}
}
write!(f, "]")
}
}

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use super::{pack, unpack, Action, State};
use vte_generate_state_changes::generate_state_changes;
#[test]
fn table() {
let mut content = vec![];
generate_table(&mut content).unwrap();
let content = String::from_utf8(content).unwrap();
let content = codegenrs::rustfmt(&content, None).unwrap();
snapbox::assert_eq_path("./src/state/table.rs", content);
}
#[allow(clippy::write_literal)]
fn generate_table(file: &mut impl std::io::Write) -> std::io::Result<()> {
writeln!(
file,
"// This file is @generated by {}",
file!().replace('\\', "/")
)?;
writeln!(file)?;
writeln!(
file,
"{}",
r#"#[rustfmt::skip]
pub(crate) const STATE_CHANGES: [[u8; 256]; 16] = ["#
)?;
for (state, entries) in STATE_CHANGES.iter().enumerate() {
writeln!(file, " // {:?}", State::try_from(state as u8).unwrap())?;
write!(file, " [")?;
let mut last_entry = None;
for packed in entries {
let (next_state, action) = unpack(*packed);
if last_entry != Some(packed) {
writeln!(file)?;
writeln!(file, " // {:?} {:?}", next_state, action)?;
write!(file, " ")?;
}
write!(file, "0x{:0>2x}, ", packed)?;
last_entry = Some(packed);
}
writeln!(file)?;
writeln!(file, " ],")?;
}
writeln!(file, "{}", r#"];"#)?;
Ok(())
}
/// This is the state change table. It's indexed first by current state and then by the next
/// character in the pty stream.
pub static STATE_CHANGES: [[u8; 256]; 16] = state_changes();
generate_state_changes!(state_changes, {
Anywhere {
0x18 => (Ground, Execute),
0x1a => (Ground, Execute),
0x1b => (Escape, Nop),
},
Ground {
0x00..=0x17 => (Anywhere, Execute),
0x19 => (Anywhere, Execute),
0x1c..=0x1f => (Anywhere, Execute),
0x20..=0x7f => (Anywhere, Print),
0x80..=0x8f => (Anywhere, Execute),
0x91..=0x9a => (Anywhere, Execute),
0x9c => (Anywhere, Execute),
// Beginning of UTF-8 2 byte sequence
0xc2..=0xdf => (Utf8, BeginUtf8),
// Beginning of UTF-8 3 byte sequence
0xe0..=0xef => (Utf8, BeginUtf8),
// Beginning of UTF-8 4 byte sequence
0xf0..=0xf4 => (Utf8, BeginUtf8),
},
Escape {
0x00..=0x17 => (Anywhere, Execute),
0x19 => (Anywhere, Execute),
0x1c..=0x1f => (Anywhere, Execute),
0x7f => (Anywhere, Ignore),
0x20..=0x2f => (EscapeIntermediate, Collect),
0x30..=0x4f => (Ground, EscDispatch),
0x51..=0x57 => (Ground, EscDispatch),
0x59 => (Ground, EscDispatch),
0x5a => (Ground, EscDispatch),
0x5c => (Ground, EscDispatch),
0x60..=0x7e => (Ground, EscDispatch),
0x5b => (CsiEntry, Nop),
0x5d => (OscString, Nop),
0x50 => (DcsEntry, Nop),
0x58 => (SosPmApcString, Nop),
0x5e => (SosPmApcString, Nop),
0x5f => (SosPmApcString, Nop),
},
EscapeIntermediate {
0x00..=0x17 => (Anywhere, Execute),
0x19 => (Anywhere, Execute),
0x1c..=0x1f => (Anywhere, Execute),
0x20..=0x2f => (Anywhere, Collect),
0x7f => (Anywhere, Ignore),
0x30..=0x7e => (Ground, EscDispatch),
},
CsiEntry {
0x00..=0x17 => (Anywhere, Execute),
0x19 => (Anywhere, Execute),
0x1c..=0x1f => (Anywhere, Execute),
0x7f => (Anywhere, Ignore),
0x20..=0x2f => (CsiIntermediate, Collect),
0x30..=0x39 => (CsiParam, Param),
0x3a..=0x3b => (CsiParam, Param),
0x3c..=0x3f => (CsiParam, Collect),
0x40..=0x7e => (Ground, CsiDispatch),
},
CsiIgnore {
0x00..=0x17 => (Anywhere, Execute),
0x19 => (Anywhere, Execute),
0x1c..=0x1f => (Anywhere, Execute),
0x20..=0x3f => (Anywhere, Ignore),
0x7f => (Anywhere, Ignore),
0x40..=0x7e => (Ground, Nop),
},
CsiParam {
0x00..=0x17 => (Anywhere, Execute),
0x19 => (Anywhere, Execute),
0x1c..=0x1f => (Anywhere, Execute),
0x30..=0x39 => (Anywhere, Param),
0x3a..=0x3b => (Anywhere, Param),
0x7f => (Anywhere, Ignore),
0x3c..=0x3f => (CsiIgnore, Nop),
0x20..=0x2f => (CsiIntermediate, Collect),
0x40..=0x7e => (Ground, CsiDispatch),
},
CsiIntermediate {
0x00..=0x17 => (Anywhere, Execute),
0x19 => (Anywhere, Execute),
0x1c..=0x1f => (Anywhere, Execute),
0x20..=0x2f => (Anywhere, Collect),
0x7f => (Anywhere, Ignore),
0x30..=0x3f => (CsiIgnore, Nop),
0x40..=0x7e => (Ground, CsiDispatch),
},
DcsEntry {
0x00..=0x17 => (Anywhere, Ignore),
0x19 => (Anywhere, Ignore),
0x1c..=0x1f => (Anywhere, Ignore),
0x7f => (Anywhere, Ignore),
0x20..=0x2f => (DcsIntermediate, Collect),
0x30..=0x39 => (DcsParam, Param),
0x3a..=0x3b => (DcsParam, Param),
0x3c..=0x3f => (DcsParam, Collect),
0x40..=0x7e => (DcsPassthrough, Nop),
},
DcsIntermediate {
0x00..=0x17 => (Anywhere, Ignore),
0x19 => (Anywhere, Ignore),
0x1c..=0x1f => (Anywhere, Ignore),
0x20..=0x2f => (Anywhere, Collect),
0x7f => (Anywhere, Ignore),
0x30..=0x3f => (DcsIgnore, Nop),
0x40..=0x7e => (DcsPassthrough, Nop),
},
DcsIgnore {
0x00..=0x17 => (Anywhere, Ignore),
0x19 => (Anywhere, Ignore),
0x1c..=0x1f => (Anywhere, Ignore),
0x20..=0x7f => (Anywhere, Ignore),
0x9c => (Ground, Nop),
},
DcsParam {
0x00..=0x17 => (Anywhere, Ignore),
0x19 => (Anywhere, Ignore),
0x1c..=0x1f => (Anywhere, Ignore),
0x30..=0x39 => (Anywhere, Param),
0x3a..=0x3b => (Anywhere, Param),
0x7f => (Anywhere, Ignore),
0x3c..=0x3f => (DcsIgnore, Nop),
0x20..=0x2f => (DcsIntermediate, Collect),
0x40..=0x7e => (DcsPassthrough, Nop),
},
DcsPassthrough {
0x00..=0x17 => (Anywhere, Put),
0x19 => (Anywhere, Put),
0x1c..=0x1f => (Anywhere, Put),
0x20..=0x7e => (Anywhere, Put),
0x7f => (Anywhere, Ignore),
0x9c => (Ground, Nop),
},
SosPmApcString {
0x00..=0x17 => (Anywhere, Ignore),
0x19 => (Anywhere, Ignore),
0x1c..=0x1f => (Anywhere, Ignore),
0x20..=0x7f => (Anywhere, Ignore),
0x9c => (Ground, Nop),
},
OscString {
0x00..=0x06 => (Anywhere, Ignore),
0x07 => (Ground, Nop),
0x08..=0x17 => (Anywhere, Ignore),
0x19 => (Anywhere, Ignore),
0x1c..=0x1f => (Anywhere, Ignore),
0x20..=0xff => (Anywhere, OscPut),
}
});

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use core::mem;
#[derive(Debug, Copy, Clone, PartialEq, Eq)]
#[repr(u8)]
#[derive(Default)]
pub enum State {
Anywhere = 0,
CsiEntry = 1,
CsiIgnore = 2,
CsiIntermediate = 3,
CsiParam = 4,
DcsEntry = 5,
DcsIgnore = 6,
DcsIntermediate = 7,
DcsParam = 8,
DcsPassthrough = 9,
Escape = 10,
EscapeIntermediate = 11,
#[default]
Ground = 12,
OscString = 13,
SosPmApcString = 14,
Utf8 = 15,
}
impl TryFrom<u8> for State {
type Error = u8;
#[inline(always)]
fn try_from(raw: u8) -> Result<Self, Self::Error> {
STATES.get(raw as usize).ok_or(raw).copied()
}
}
const STATES: [State; 16] = [
State::Anywhere,
State::CsiEntry,
State::CsiIgnore,
State::CsiIntermediate,
State::CsiParam,
State::DcsEntry,
State::DcsIgnore,
State::DcsIntermediate,
State::DcsParam,
State::DcsPassthrough,
State::Escape,
State::EscapeIntermediate,
State::Ground,
State::OscString,
State::SosPmApcString,
State::Utf8,
];
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
#[repr(u8)]
#[derive(Default)]
pub enum Action {
#[default]
Nop = 0,
Clear = 1,
Collect = 2,
CsiDispatch = 3,
EscDispatch = 4,
Execute = 5,
Hook = 6,
Ignore = 7,
OscEnd = 8,
OscPut = 9,
OscStart = 10,
Param = 11,
Print = 12,
Put = 13,
Unhook = 14,
BeginUtf8 = 15,
}
impl TryFrom<u8> for Action {
type Error = u8;
#[inline(always)]
fn try_from(raw: u8) -> Result<Self, Self::Error> {
ACTIONS.get(raw as usize).ok_or(raw).copied()
}
}
const ACTIONS: [Action; 16] = [
Action::Nop,
Action::Clear,
Action::Collect,
Action::CsiDispatch,
Action::EscDispatch,
Action::Execute,
Action::Hook,
Action::Ignore,
Action::OscEnd,
Action::OscPut,
Action::OscStart,
Action::Param,
Action::Print,
Action::Put,
Action::Unhook,
Action::BeginUtf8,
];
/// Unpack a u8 into a State and Action
///
/// The implementation of this assumes that there are *precisely* 16 variants for both Action and
/// State. Furthermore, it assumes that the enums are tag-only; that is, there is no data in any
/// variant.
///
/// Bad things will happen if those invariants are violated.
#[inline(always)]
pub const fn unpack(delta: u8) -> (State, Action) {
unsafe {
(
// State is stored in bottom 4 bits
mem::transmute(delta & 0x0f),
// Action is stored in top 4 bits
mem::transmute(delta >> 4),
)
}
}
#[inline(always)]
#[cfg(test)]
pub const fn pack(state: State, action: Action) -> u8 {
(action as u8) << 4 | state as u8
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn unpack_state_action() {
match unpack(0xee) {
(State::SosPmApcString, Action::Unhook) => (),
_ => panic!("unpack failed"),
}
match unpack(0x0f) {
(State::Utf8, Action::Nop) => (),
_ => panic!("unpack failed"),
}
match unpack(0xff) {
(State::Utf8, Action::BeginUtf8) => (),
_ => panic!("unpack failed"),
}
}
#[test]
fn pack_state_action() {
match unpack(0xee) {
(State::SosPmApcString, Action::Unhook) => (),
_ => panic!("unpack failed"),
}
match unpack(0x0f) {
(State::Utf8, Action::Nop) => (),
_ => panic!("unpack failed"),
}
match unpack(0xff) {
(State::Utf8, Action::BeginUtf8) => (),
_ => panic!("unpack failed"),
}
}
}

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#[cfg(test)]
mod codegen;
mod definitions;
mod table;
#[cfg(test)]
pub(crate) use definitions::pack;
pub(crate) use definitions::unpack;
pub use definitions::Action;
pub use definitions::State;
/// Transition to next [`State`]
///
/// Note: This does not directly support UTF-8.
/// - If the data is validated as UTF-8 (e.g. `str`) or single-byte C1 control codes are
/// unsupported, then treat [`Action::BeginUtf8`] and [`Action::Execute`] for UTF-8 continuations
/// as [`Action::Print`].
/// - If the data is not validated, then a UTF-8 state machine will need to be implemented on top,
/// starting with [`Action::BeginUtf8`].
///
/// Note: When [`State::Anywhere`] is returned, revert back to the prior state.
#[inline]
pub const fn state_change(state: State, byte: u8) -> (State, Action) {
// Handle state changes in the anywhere state before evaluating changes
// for current state.
let mut change = state_change_(State::Anywhere, byte);
if change == 0 {
change = state_change_(state, byte);
}
// Unpack into a state and action
unpack(change)
}
#[inline]
const fn state_change_(state: State, byte: u8) -> u8 {
let state_idx = state as usize;
let byte_idx = byte as usize;
table::STATE_CHANGES[state_idx][byte_idx]
}

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// This file is @generated by crates/anstyle-parse/src/state/codegen.rs
#[rustfmt::skip]
pub(crate) const STATE_CHANGES: [[u8; 256]; 16] = [
// Anywhere
[
// Anywhere Nop
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
// Ground Execute
0x5c,
// Anywhere Nop
0x00,
// Ground Execute
0x5c,
// Escape Nop
0x0a,
// Anywhere Nop
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
],
// CsiEntry
[
// Anywhere Execute
0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50,
// Anywhere Nop
0x00,
// Anywhere Execute
0x50,
// Anywhere Nop
0x00, 0x00,
// Anywhere Execute
0x50, 0x50, 0x50, 0x50,
// CsiIntermediate Collect
0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23,
// CsiParam Param
0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4,
// CsiParam Collect
0x24, 0x24, 0x24, 0x24,
// Ground CsiDispatch
0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c,
// Anywhere Ignore
0x70,
// Anywhere Nop
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
],
// CsiIgnore
[
// Anywhere Execute
0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50,
// Anywhere Nop
0x00,
// Anywhere Execute
0x50,
// Anywhere Nop
0x00, 0x00,
// Anywhere Execute
0x50, 0x50, 0x50, 0x50,
// Anywhere Ignore
0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70,
// Ground Nop
0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c,
// Anywhere Ignore
0x70,
// Anywhere Nop
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
],
// CsiIntermediate
[
// Anywhere Execute
0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50,
// Anywhere Nop
0x00,
// Anywhere Execute
0x50,
// Anywhere Nop
0x00, 0x00,
// Anywhere Execute
0x50, 0x50, 0x50, 0x50,
// Anywhere Collect
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
// CsiIgnore Nop
0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
// Ground CsiDispatch
0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c,
// Anywhere Ignore
0x70,
// Anywhere Nop
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
],
// CsiParam
[
// Anywhere Execute
0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50,
// Anywhere Nop
0x00,
// Anywhere Execute
0x50,
// Anywhere Nop
0x00, 0x00,
// Anywhere Execute
0x50, 0x50, 0x50, 0x50,
// CsiIntermediate Collect
0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23,
// Anywhere Param
0xb0, 0xb0, 0xb0, 0xb0, 0xb0, 0xb0, 0xb0, 0xb0, 0xb0, 0xb0, 0xb0, 0xb0,
// CsiIgnore Nop
0x02, 0x02, 0x02, 0x02,
// Ground CsiDispatch
0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c, 0x3c,
// Anywhere Ignore
0x70,
// Anywhere Nop
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
],
// DcsEntry
[
// Anywhere Ignore
0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70,
// Anywhere Nop
0x00,
// Anywhere Ignore
0x70,
// Anywhere Nop
0x00, 0x00,
// Anywhere Ignore
0x70, 0x70, 0x70, 0x70,
// DcsIntermediate Collect
0x27, 0x27, 0x27, 0x27, 0x27, 0x27, 0x27, 0x27, 0x27, 0x27, 0x27, 0x27, 0x27, 0x27, 0x27, 0x27,
// DcsParam Param
0xb8, 0xb8, 0xb8, 0xb8, 0xb8, 0xb8, 0xb8, 0xb8, 0xb8, 0xb8, 0xb8, 0xb8,
// DcsParam Collect
0x28, 0x28, 0x28, 0x28,
// DcsPassthrough Nop
0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09,
// Anywhere Ignore
0x70,
// Anywhere Nop
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
],
// DcsIgnore
[
// Anywhere Ignore
0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70,
// Anywhere Nop
0x00,
// Anywhere Ignore
0x70,
// Anywhere Nop
0x00, 0x00,
// Anywhere Ignore
0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70,
// Anywhere Nop
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
// Ground Nop
0x0c,
// Anywhere Nop
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
],
// DcsIntermediate
[
// Anywhere Ignore
0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70,
// Anywhere Nop
0x00,
// Anywhere Ignore
0x70,
// Anywhere Nop
0x00, 0x00,
// Anywhere Ignore
0x70, 0x70, 0x70, 0x70,
// Anywhere Collect
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
// DcsIgnore Nop
0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06,
// DcsPassthrough Nop
0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09,
// Anywhere Ignore
0x70,
// Anywhere Nop
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
],
// DcsParam
[
// Anywhere Ignore
0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70,
// Anywhere Nop
0x00,
// Anywhere Ignore
0x70,
// Anywhere Nop
0x00, 0x00,
// Anywhere Ignore
0x70, 0x70, 0x70, 0x70,
// DcsIntermediate Collect
0x27, 0x27, 0x27, 0x27, 0x27, 0x27, 0x27, 0x27, 0x27, 0x27, 0x27, 0x27, 0x27, 0x27, 0x27, 0x27,
// Anywhere Param
0xb0, 0xb0, 0xb0, 0xb0, 0xb0, 0xb0, 0xb0, 0xb0, 0xb0, 0xb0, 0xb0, 0xb0,
// DcsIgnore Nop
0x06, 0x06, 0x06, 0x06,
// DcsPassthrough Nop
0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09,
// Anywhere Ignore
0x70,
// Anywhere Nop
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
],
// DcsPassthrough
[
// Anywhere Put
0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0,
// Anywhere Nop
0x00,
// Anywhere Put
0xd0,
// Anywhere Nop
0x00, 0x00,
// Anywhere Put
0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0,
// Anywhere Ignore
0x70,
// Anywhere Nop
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
// Ground Nop
0x0c,
// Anywhere Nop
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
],
// Escape
[
// Anywhere Execute
0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50,
// Anywhere Nop
0x00,
// Anywhere Execute
0x50,
// Anywhere Nop
0x00, 0x00,
// Anywhere Execute
0x50, 0x50, 0x50, 0x50,
// EscapeIntermediate Collect
0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b,
// Ground EscDispatch
0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c,
// DcsEntry Nop
0x05,
// Ground EscDispatch
0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c,
// SosPmApcString Nop
0x0e,
// Ground EscDispatch
0x4c, 0x4c,
// CsiEntry Nop
0x01,
// Ground EscDispatch
0x4c,
// OscString Nop
0x0d,
// SosPmApcString Nop
0x0e, 0x0e,
// Ground EscDispatch
0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c,
// Anywhere Ignore
0x70,
// Anywhere Nop
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
],
// EscapeIntermediate
[
// Anywhere Execute
0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50,
// Anywhere Nop
0x00,
// Anywhere Execute
0x50,
// Anywhere Nop
0x00, 0x00,
// Anywhere Execute
0x50, 0x50, 0x50, 0x50,
// Anywhere Collect
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
// Ground EscDispatch
0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c,
// Anywhere Ignore
0x70,
// Anywhere Nop
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
],
// Ground
[
// Anywhere Execute
0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50,
// Anywhere Nop
0x00,
// Anywhere Execute
0x50,
// Anywhere Nop
0x00, 0x00,
// Anywhere Execute
0x50, 0x50, 0x50, 0x50,
// Anywhere Print
0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0,
// Anywhere Execute
0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50,
// Anywhere Nop
0x00,
// Anywhere Execute
0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50,
// Anywhere Nop
0x00,
// Anywhere Execute
0x50,
// Anywhere Nop
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
// Utf8 BeginUtf8
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
// Anywhere Nop
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
],
// OscString
[
// Anywhere Ignore
0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70,
// Ground Nop
0x0c,
// Anywhere Ignore
0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70,
// Anywhere Nop
0x00,
// Anywhere Ignore
0x70,
// Anywhere Nop
0x00, 0x00,
// Anywhere Ignore
0x70, 0x70, 0x70, 0x70,
// Anywhere OscPut
0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90,
],
// SosPmApcString
[
// Anywhere Ignore
0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70,
// Anywhere Nop
0x00,
// Anywhere Ignore
0x70,
// Anywhere Nop
0x00, 0x00,
// Anywhere Ignore
0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70, 0x70,
// Anywhere Nop
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
// Ground Nop
0x0c,
// Anywhere Nop
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
],
// Utf8
[
// Anywhere Nop
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
],
];

1
vendor/anstyle-query/.cargo-checksum.json vendored Normal file
View File

@ -0,0 +1 @@
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# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
#
# When uploading crates to the registry Cargo will automatically
# "normalize" Cargo.toml files for maximal compatibility
# with all versions of Cargo and also rewrite `path` dependencies
# to registry (e.g., crates.io) dependencies.
#
# If you are reading this file be aware that the original Cargo.toml
# will likely look very different (and much more reasonable).
# See Cargo.toml.orig for the original contents.
[package]
edition = "2021"
rust-version = "1.70.0"
name = "anstyle-query"
version = "1.0.2"
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]
description = "Look up colored console capabilities"
readme = "README.md"
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"terminal",
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version = "0.52.0"
features = [
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"Win32_Foundation",
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Copyright (c) Individual contributors
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
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SOFTWARE.

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# anstyle-query
> **Low level terminal capability lookups**
[![Documentation](https://img.shields.io/badge/docs-master-blue.svg)][Documentation]
![License](https://img.shields.io/crates/l/anstyle-query.svg)
[![Crates Status](https://img.shields.io/crates/v/anstyle-query.svg)](https://crates.io/crates/anstyle-query)
## [Contribute](../../CONTRIBUTING.md)
## License
Dual-licensed under [MIT](../../LICENSE-MIT) or [Apache 2.0](../../LICENSE-APACHE)
[Documentation]: https://docs.rs/anstyle-query

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fn main() {
println!("clicolor: {:?}", anstyle_query::clicolor());
println!("clicolor_force: {}", anstyle_query::clicolor_force());
println!("no_color: {}", anstyle_query::no_color());
println!(
"term_supports_ansi_color: {}",
anstyle_query::term_supports_ansi_color()
);
println!(
"term_supports_color: {}",
anstyle_query::term_supports_color()
);
println!("truecolor: {}", anstyle_query::truecolor());
println!(
"enable_ansi_colors: {:?}",
anstyle_query::windows::enable_ansi_colors()
);
#[cfg(windows)]
println!(
" enable_virtual_terminal_processing: {:?}",
anstyle_query::windows::enable_virtual_terminal_processing()
);
println!("is_ci: {:?}", anstyle_query::is_ci());
}

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pub mod windows;
/// Check [CLICOLOR] status
///
/// - When `true`, ANSI colors are supported and should be used when the program isn't piped,
/// similar to [`term_supports_color`]
/// - When `false`, don’t output ANSI color escape codes, similar to [`no_color`]
///
/// See also:
/// - [terminfo](https://crates.io/crates/terminfo) or [term](https://crates.io/crates/term) for
/// checking termcaps
/// - [termbg](https://crates.io/crates/termbg) for detecting background color
///
/// [CLICOLOR]: https://bixense.com/clicolors/
#[inline]
pub fn clicolor() -> Option<bool> {
let value = std::env::var_os("CLICOLOR")?;
Some(value != "0")
}
/// Check [CLICOLOR_FORCE] status
///
/// ANSI colors should be enabled no matter what.
///
/// [CLICOLOR_FORCE]: https://bixense.com/clicolors/
#[inline]
pub fn clicolor_force() -> bool {
let value = std::env::var_os("CLICOLOR_FORCE");
value
.as_deref()
.unwrap_or_else(|| std::ffi::OsStr::new("0"))
!= "0"
}
/// Check [NO_COLOR] status
///
/// When `true`, should prevent the addition of ANSI color.
///
/// User-level configuration files and per-instance command-line arguments should override
/// [NO_COLOR]. A user should be able to export `$NO_COLOR` in their shell configuration file as a
/// default, but configure a specific program in its configuration file to specifically enable
/// color.
///
/// [NO_COLOR]: https://no-color.org/
#[inline]
pub fn no_color() -> bool {
let value = std::env::var_os("NO_COLOR");
value.as_deref().unwrap_or_else(|| std::ffi::OsStr::new("")) != ""
}
/// Check `TERM` for color support
#[inline]
#[cfg(not(windows))]
pub fn term_supports_color() -> bool {
match std::env::var_os("TERM") {
// If TERM isn't set, then we are in a weird environment that
// probably doesn't support colors.
None => return false,
Some(k) => {
if k == "dumb" {
return false;
}
}
}
true
}
/// Check `TERM` for color support
#[inline]
#[cfg(windows)]
pub fn term_supports_color() -> bool {
// On Windows, if TERM isn't set, then we shouldn't automatically
// assume that colors aren't allowed. This is unlike Unix environments
// where TERM is more rigorously set.
if let Some(k) = std::env::var_os("TERM") {
if k == "dumb" {
return false;
}
}
true
}
/// Check `TERM` for ANSI color support
#[inline]
#[cfg(not(windows))]
pub fn term_supports_ansi_color() -> bool {
term_supports_color()
}
/// Check `TERM` for ANSI color support
#[inline]
#[cfg(windows)]
pub fn term_supports_ansi_color() -> bool {
match std::env::var_os("TERM") {
// If TERM isn't set, then we are in a weird environment that
// probably doesn't support ansi.
None => return false,
Some(k) => {
// cygwin doesn't seem to support ANSI escape sequences
// and instead has its own variety. However, the Windows
// console API may be available.
if k == "dumb" || k == "cygwin" {
return false;
}
}
}
true
}
/// Check [COLORTERM] for truecolor support
///
/// [COLORTERM]: https://github.com/termstandard/colors
#[inline]
pub fn truecolor() -> bool {
let value = std::env::var_os("COLORTERM");
let value = value.as_deref().unwrap_or_default();
value == "truecolor" || value == "24bit"
}
/// Report whether this is running in CI
///
/// CI is a common environment where, despite being piped, ansi color codes are supported
///
/// This is not as exhaustive as you'd find in a crate like `is_ci` but it should work in enough
/// cases.
#[inline]
pub fn is_ci() -> bool {
// Assuming its CI based on presence because who would be setting `CI=false`?
//
// This makes it easier to all of the potential values when considering our known values:
// - Gitlab and Github set it to `true`
// - Woodpecker sets it to `woodpecker`
std::env::var_os("CI").is_some()
}

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//! Windows-specific style queries
#[cfg(windows)]
mod windows_console {
use std::os::windows::io::AsRawHandle;
use std::os::windows::io::RawHandle;
use windows_sys::Win32::System::Console::CONSOLE_MODE;
use windows_sys::Win32::System::Console::ENABLE_VIRTUAL_TERMINAL_PROCESSING;
fn enable_vt(handle: RawHandle) -> std::io::Result<()> {
unsafe {
let handle = std::mem::transmute(handle);
if handle == 0 {
return Err(std::io::Error::new(
std::io::ErrorKind::BrokenPipe,
"console is detached",
));
}
let mut dwmode: CONSOLE_MODE = 0;
if windows_sys::Win32::System::Console::GetConsoleMode(handle, &mut dwmode) == 0 {
return Err(std::io::Error::last_os_error());
}
dwmode |= ENABLE_VIRTUAL_TERMINAL_PROCESSING;
if windows_sys::Win32::System::Console::SetConsoleMode(handle, dwmode) == 0 {
return Err(std::io::Error::last_os_error());
}
Ok(())
}
}
pub fn enable_virtual_terminal_processing() -> std::io::Result<()> {
let stdout = std::io::stdout();
let stdout_handle = stdout.as_raw_handle();
let stderr = std::io::stderr();
let stderr_handle = stderr.as_raw_handle();
enable_vt(stdout_handle)?;
if stdout_handle != stderr_handle {
enable_vt(stderr_handle)?;
}
Ok(())
}
#[inline]
pub(crate) fn enable_ansi_colors() -> Option<bool> {
Some(
enable_virtual_terminal_processing()
.map(|_| true)
.unwrap_or(false),
)
}
}
#[cfg(not(windows))]
mod windows_console {
#[inline]
pub(crate) fn enable_ansi_colors() -> Option<bool> {
None
}
}
/// Enable ANSI escape codes (ENABLE_VIRTUAL_TERMINAL_PROCESSING)
///
/// For non-windows systems, returns `None`
pub fn enable_ansi_colors() -> Option<bool> {
windows_console::enable_ansi_colors()
}
/// Raw ENABLE_VIRTUAL_TERMINAL_PROCESSING on stdout/stderr
#[cfg(windows)]
pub fn enable_virtual_terminal_processing() -> std::io::Result<()> {
windows_console::enable_virtual_terminal_processing()
}

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# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 3
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"windows_i686_gnu",
"windows_i686_msvc",
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"windows_x86_64_msvc",
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94
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# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
#
# When uploading crates to the registry Cargo will automatically
# "normalize" Cargo.toml files for maximal compatibility
# with all versions of Cargo and also rewrite `path` dependencies
# to registry (e.g., crates.io) dependencies.
#
# If you are reading this file be aware that the original Cargo.toml
# will likely look very different (and much more reasonable).
# See Cargo.toml.orig for the original contents.
[package]
edition = "2021"
rust-version = "1.70.0"
name = "anstyle-wincon"
version = "3.0.2"
include = [
"build.rs",
"src/**/*",
"Cargo.toml",
"Cargo.lock",
"LICENSE*",
"README.md",
"benches/**/*",
"examples/**/*",
]
description = "Styling legacy Windows terminals"
homepage = "https://github.com/rust-cli/anstyle"
readme = "README.md"
keywords = [
"ansi",
"terminal",
"color",
"windows",
]
categories = ["command-line-interface"]
license = "MIT OR Apache-2.0"
repository = "https://github.com/rust-cli/anstyle.git"
[package.metadata.docs.rs]
features = []
rustdoc-args = [
"--cfg",
"docsrs",
]
targets = ["x86_64-pc-windows-msvc"]
[[package.metadata.release.pre-release-replacements]]
file = "CHANGELOG.md"
min = 1
replace = "{{version}}"
search = "Unreleased"
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exactly = 1
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replace = "...{{tag_name}}"
search = '\.\.\.HEAD'
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"""
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search = "<!-- next-url -->"
[dependencies.anstyle]
version = "1.0.0"
[dev-dependencies.lexopt]
version = "0.3.0"
[target."cfg(windows)".dependencies.windows-sys]
version = "0.52.0"
features = [
"Win32_System_Console",
"Win32_Foundation",
]

202
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Apache License
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19
vendor/anstyle-wincon/LICENSE-MIT vendored Normal file
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Copyright (c) 2015 Josh Triplett, 2022 The rust-cli Developers
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
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The above copyright notice and this permission notice shall be included in all
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

30
vendor/anstyle-wincon/README.md vendored Normal file
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# anstyle-wincon
> Styling legacy Windows terminals
[![Documentation](https://img.shields.io/badge/docs-master-blue.svg)][Documentation]
![License](https://img.shields.io/crates/l/anstyle-wincon.svg)
[![Crates Status](https://img.shields.io/crates/v/anstyle-wincon.svg)](https://crates.io/crates/anstyle-wincon)
## License
Licensed under either of
* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
* MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
at your option.
### Contribution
Unless you explicitly state otherwise, any contribution intentionally
submitted for inclusion in the work by you, as defined in the Apache-2.0
license, shall be dual licensed as above, without any additional terms or
conditions.
### Special Thanks
[burntsushi](https://github.com/burntsushi) for [termcolor](https://github.com/burntsushi/termcolor) as I don't know Windows either :)
[Crates.io]: https://crates.io/crates/anstyle-wincon
[Documentation]: https://docs.rs/anstyle-wincon

139
vendor/anstyle-wincon/examples/dump-wincon.rs vendored Normal file
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use anstyle_wincon::WinconStream as _;
fn main() -> Result<(), lexopt::Error> {
let args = Args::parse()?;
let stdout = std::io::stdout();
let mut stdout = stdout.lock();
for fixed in 0..16 {
let style = style(fixed, args.layer, args.effects);
let _ = print_number(&mut stdout, fixed, style);
if fixed == 7 || fixed == 15 {
let _ = stdout.write_colored(None, None, &b"\n"[..]);
}
}
for r in 0..6 {
let _ = stdout.write_colored(None, None, &b"\n"[..]);
for g in 0..6 {
for b in 0..6 {
let fixed = r * 36 + g * 6 + b + 16;
let style = style(fixed, args.layer, args.effects);
let _ = print_number(&mut stdout, fixed, style);
}
let _ = stdout.write_colored(None, None, &b"\n"[..]);
}
}
for c in 0..24 {
if 0 == c % 8 {
let _ = stdout.write_colored(None, None, &b"\n"[..]);
}
let fixed = 232 + c;
let style = style(fixed, args.layer, args.effects);
let _ = print_number(&mut stdout, fixed, style);
}
Ok(())
}
fn style(fixed: u8, layer: Layer, effects: anstyle::Effects) -> anstyle::Style {
let color = anstyle::Ansi256Color(fixed).into();
(match layer {
Layer::Fg => anstyle::Style::new().fg_color(Some(color)),
Layer::Bg => anstyle::Style::new().bg_color(Some(color)),
Layer::Underline => anstyle::Style::new().underline_color(Some(color)),
}) | effects
}
fn print_number(
stdout: &mut std::io::StdoutLock<'static>,
fixed: u8,
style: anstyle::Style,
) -> std::io::Result<()> {
let fg = style.get_fg_color().and_then(|c| match c {
anstyle::Color::Ansi(c) => Some(c),
anstyle::Color::Ansi256(c) => c.into_ansi(),
anstyle::Color::Rgb(_) => None,
});
let bg = style.get_bg_color().and_then(|c| match c {
anstyle::Color::Ansi(c) => Some(c),
anstyle::Color::Ansi256(c) => c.into_ansi(),
anstyle::Color::Rgb(_) => None,
});
stdout
.write_colored(fg, bg, format!("{:>4}", fixed).as_bytes())
.map(|_| ())
}
#[derive(Default)]
struct Args {
effects: anstyle::Effects,
layer: Layer,
}
#[derive(Copy, Clone, Default)]
enum Layer {
#[default]
Fg,
Bg,
Underline,
}
impl Args {
fn parse() -> Result<Self, lexopt::Error> {
use lexopt::prelude::*;
let mut res = Args::default();
let mut args = lexopt::Parser::from_env();
while let Some(arg) = args.next()? {
match arg {
Long("layer") => {
res.layer = args.value()?.parse_with(|s| match s {
"fg" => Ok(Layer::Fg),
"bg" => Ok(Layer::Bg),
"underline" => Ok(Layer::Underline),
_ => Err("expected values fg, bg, underline"),
})?;
}
Long("effect") => {
const EFFECTS: [(&str, anstyle::Effects); 12] = [
("bold", anstyle::Effects::BOLD),
("dimmed", anstyle::Effects::DIMMED),
("italic", anstyle::Effects::ITALIC),
("underline", anstyle::Effects::UNDERLINE),
("double_underline", anstyle::Effects::UNDERLINE),
("curly_underline", anstyle::Effects::CURLY_UNDERLINE),
("dotted_underline", anstyle::Effects::DOTTED_UNDERLINE),
("dashed_underline", anstyle::Effects::DASHED_UNDERLINE),
("blink", anstyle::Effects::BLINK),
("invert", anstyle::Effects::INVERT),
("hidden", anstyle::Effects::HIDDEN),
("strikethrough", anstyle::Effects::STRIKETHROUGH),
];
let effect = args.value()?.parse_with(|s| {
EFFECTS
.into_iter()
.find(|(name, _)| *name == s)
.map(|(_, effect)| effect)
.ok_or_else(|| {
format!(
"expected one of {}",
EFFECTS
.into_iter()
.map(|(n, _)| n)
.collect::<Vec<_>>()
.join(", ")
)
})
})?;
res.effects = res.effects.insert(effect);
}
_ => return Err(arg.unexpected()),
}
}
Ok(res)
}
}

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#![cfg_attr(not(windows), allow(dead_code))]
#[cfg(not(windows))]
fn main() {
panic!("unsupported");
}
#[cfg(windows)]
fn main() -> Result<(), lexopt::Error> {
use anstyle_wincon::WinconStream as _;
let args = Args::parse()?;
let stdout = std::io::stdout();
let mut stdout = stdout.lock();
let fg = args.fg.and_then(|c| c.into_ansi());
let bg = args.bg.and_then(|c| c.into_ansi());
let _ = stdout.write_colored(fg, bg, "".as_bytes());
std::mem::forget(stdout);
Ok(())
}
#[derive(Default)]
struct Args {
fg: Option<anstyle::Ansi256Color>,
bg: Option<anstyle::Ansi256Color>,
}
impl Args {
fn parse() -> Result<Self, lexopt::Error> {
use lexopt::prelude::*;
let mut res = Args::default();
let mut args = lexopt::Parser::from_env();
while let Some(arg) = args.next()? {
match arg {
Long("fg") => {
res.fg = Some(
args.value()?
.parse_with(|s| s.parse::<u8>().map(anstyle::Ansi256Color))?,
);
}
Long("bg") => {
res.fg = Some(
args.value()?
.parse_with(|s| s.parse::<u8>().map(anstyle::Ansi256Color))?,
);
}
_ => return Err(arg.unexpected()),
}
}
Ok(res)
}
}

25
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//! Low-level ANSI-styling
/// Write ANSI colored text to the stream
pub fn write_colored<S: std::io::Write>(
stream: &mut S,
fg: Option<anstyle::AnsiColor>,
bg: Option<anstyle::AnsiColor>,
data: &[u8],
) -> std::io::Result<usize> {
let non_default = fg.is_some() || bg.is_some();
if non_default {
if let Some(fg) = fg {
write!(stream, "{}", fg.render_fg())?;
}
if let Some(bg) = bg {
write!(stream, "{}", bg.render_bg())?;
}
}
let written = stream.write(data)?;
if non_default {
write!(stream, "{}", anstyle::Reset.render())?;
}
Ok(written)
}

18
vendor/anstyle-wincon/src/lib.rs vendored Normal file
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//! Styling legacy Windows terminals
//!
//! See [`WinconStream`]
//!
//! This fills a similar role as [`winapi-util`](https://crates.io/crates/winapi-util) does for
//! [`termcolor`](https://crates.io/crates/termcolor) with the differences
//! - Uses `windows-sys` rather than `winapi`
//! - Uses [`anstyle`](https://crates.io/crates/termcolor) rather than defining its own types
//! - More focused, smaller
#![cfg_attr(docsrs, feature(doc_auto_cfg))]
pub mod ansi;
mod stream;
#[cfg(windows)]
pub mod windows;
pub use stream::WinconStream;

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/// Extend `std::io::Write` with wincon styling
pub trait WinconStream {
/// Write colored text to the stream
fn write_colored(
&mut self,
fg: Option<anstyle::AnsiColor>,
bg: Option<anstyle::AnsiColor>,
data: &[u8],
) -> std::io::Result<usize>;
}
impl WinconStream for Box<dyn std::io::Write> {
fn write_colored(
&mut self,
fg: Option<anstyle::AnsiColor>,
bg: Option<anstyle::AnsiColor>,
data: &[u8],
) -> std::io::Result<usize> {
crate::ansi::write_colored(self, fg, bg, data)
}
}
impl WinconStream for &'_ mut Box<dyn std::io::Write> {
fn write_colored(
&mut self,
fg: Option<anstyle::AnsiColor>,
bg: Option<anstyle::AnsiColor>,
data: &[u8],
) -> std::io::Result<usize> {
(**self).write_colored(fg, bg, data)
}
}
impl WinconStream for std::fs::File {
fn write_colored(
&mut self,
fg: Option<anstyle::AnsiColor>,
bg: Option<anstyle::AnsiColor>,
data: &[u8],
) -> std::io::Result<usize> {
crate::ansi::write_colored(self, fg, bg, data)
}
}
impl WinconStream for &'_ mut std::fs::File {
fn write_colored(
&mut self,
fg: Option<anstyle::AnsiColor>,
bg: Option<anstyle::AnsiColor>,
data: &[u8],
) -> std::io::Result<usize> {
(**self).write_colored(fg, bg, data)
}
}
impl WinconStream for Vec<u8> {
fn write_colored(
&mut self,
fg: Option<anstyle::AnsiColor>,
bg: Option<anstyle::AnsiColor>,
data: &[u8],
) -> std::io::Result<usize> {
crate::ansi::write_colored(self, fg, bg, data)
}
}
impl WinconStream for &'_ mut Vec<u8> {
fn write_colored(
&mut self,
fg: Option<anstyle::AnsiColor>,
bg: Option<anstyle::AnsiColor>,
data: &[u8],
) -> std::io::Result<usize> {
(**self).write_colored(fg, bg, data)
}
}
impl WinconStream for std::io::Stdout {
fn write_colored(
&mut self,
fg: Option<anstyle::AnsiColor>,
bg: Option<anstyle::AnsiColor>,
data: &[u8],
) -> std::io::Result<usize> {
// Ensure exclusive access
self.lock().write_colored(fg, bg, data)
}
}
impl WinconStream for std::io::Stderr {
fn write_colored(
&mut self,
fg: Option<anstyle::AnsiColor>,
bg: Option<anstyle::AnsiColor>,
data: &[u8],
) -> std::io::Result<usize> {
// Ensure exclusive access
self.lock().write_colored(fg, bg, data)
}
}
#[cfg(not(windows))]
mod platform {
use super::*;
impl WinconStream for std::io::StdoutLock<'_> {
fn write_colored(
&mut self,
fg: Option<anstyle::AnsiColor>,
bg: Option<anstyle::AnsiColor>,
data: &[u8],
) -> std::io::Result<usize> {
crate::ansi::write_colored(self, fg, bg, data)
}
}
impl WinconStream for std::io::StderrLock<'_> {
fn write_colored(
&mut self,
fg: Option<anstyle::AnsiColor>,
bg: Option<anstyle::AnsiColor>,
data: &[u8],
) -> std::io::Result<usize> {
crate::ansi::write_colored(self, fg, bg, data)
}
}
}
#[cfg(windows)]
mod platform {
use super::*;
impl WinconStream for std::io::StdoutLock<'_> {
fn write_colored(
&mut self,
fg: Option<anstyle::AnsiColor>,
bg: Option<anstyle::AnsiColor>,
data: &[u8],
) -> std::io::Result<usize> {
let initial = crate::windows::stdout_initial_colors();
crate::windows::write_colored(self, fg, bg, data, initial)
}
}
impl WinconStream for std::io::StderrLock<'_> {
fn write_colored(
&mut self,
fg: Option<anstyle::AnsiColor>,
bg: Option<anstyle::AnsiColor>,
data: &[u8],
) -> std::io::Result<usize> {
let initial = crate::windows::stderr_initial_colors();
crate::windows::write_colored(self, fg, bg, data, initial)
}
}
}
impl WinconStream for &'_ mut std::io::StdoutLock<'_> {
fn write_colored(
&mut self,
fg: Option<anstyle::AnsiColor>,
bg: Option<anstyle::AnsiColor>,
data: &[u8],
) -> std::io::Result<usize> {
(**self).write_colored(fg, bg, data)
}
}
impl WinconStream for &'_ mut std::io::StderrLock<'_> {
fn write_colored(
&mut self,
fg: Option<anstyle::AnsiColor>,
bg: Option<anstyle::AnsiColor>,
data: &[u8],
) -> std::io::Result<usize> {
(**self).write_colored(fg, bg, data)
}
}

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//! Low-level wincon-styling
use std::os::windows::io::AsHandle;
use std::os::windows::io::AsRawHandle;
type StdioColorResult = std::io::Result<(anstyle::AnsiColor, anstyle::AnsiColor)>;
type StdioColorInnerResult = Result<(anstyle::AnsiColor, anstyle::AnsiColor), inner::IoError>;
/// Cached [`get_colors`] call for [`std::io::stdout`]
pub fn stdout_initial_colors() -> StdioColorResult {
static INITIAL: std::sync::OnceLock<StdioColorInnerResult> = std::sync::OnceLock::new();
INITIAL
.get_or_init(|| get_colors_(&std::io::stdout()))
.clone()
.map_err(Into::into)
}
/// Cached [`get_colors`] call for [`std::io::stderr`]
pub fn stderr_initial_colors() -> StdioColorResult {
static INITIAL: std::sync::OnceLock<StdioColorInnerResult> = std::sync::OnceLock::new();
INITIAL
.get_or_init(|| get_colors_(&std::io::stderr()))
.clone()
.map_err(Into::into)
}
/// Apply colors to future writes
///
/// **Note:** Make sure any buffers are first flushed or else these colors will apply
pub fn set_colors<S: AsHandle>(
stream: &mut S,
fg: anstyle::AnsiColor,
bg: anstyle::AnsiColor,
) -> std::io::Result<()> {
set_colors_(stream, fg, bg).map_err(Into::into)
}
fn set_colors_<S: AsHandle>(
stream: &mut S,
fg: anstyle::AnsiColor,
bg: anstyle::AnsiColor,
) -> Result<(), inner::IoError> {
let handle = stream.as_handle();
let handle = handle.as_raw_handle();
let attributes = inner::set_colors(fg, bg);
inner::set_console_text_attributes(handle, attributes)
}
/// Get the colors currently active on the console
pub fn get_colors<S: AsHandle>(stream: &S) -> StdioColorResult {
get_colors_(stream).map_err(Into::into)
}
fn get_colors_<S: AsHandle>(stream: &S) -> StdioColorInnerResult {
let handle = stream.as_handle();
let handle = handle.as_raw_handle();
let info = inner::get_screen_buffer_info(handle)?;
let (fg, bg) = inner::get_colors(&info);
Ok((fg, bg))
}
pub(crate) fn write_colored<S: AsHandle + std::io::Write>(
stream: &mut S,
fg: Option<anstyle::AnsiColor>,
bg: Option<anstyle::AnsiColor>,
data: &[u8],
initial: StdioColorResult,
) -> std::io::Result<usize> {
let (initial_fg, initial_bg) = initial?;
let non_default = fg.is_some() || bg.is_some();
if non_default {
let fg = fg.unwrap_or(initial_fg);
let bg = bg.unwrap_or(initial_bg);
// Ensure everything is written with the last set of colors before applying the next set
stream.flush()?;
set_colors(stream, fg, bg)?;
}
let written = stream.write(data)?;
if non_default {
// Ensure everything is written with the last set of colors before applying the next set
stream.flush()?;
set_colors(stream, initial_fg, initial_bg)?;
}
Ok(written)
}
mod inner {
use windows_sys::Win32::System::Console::CONSOLE_CHARACTER_ATTRIBUTES;
use windows_sys::Win32::System::Console::CONSOLE_SCREEN_BUFFER_INFO;
use windows_sys::Win32::System::Console::FOREGROUND_BLUE;
use windows_sys::Win32::System::Console::FOREGROUND_GREEN;
use windows_sys::Win32::System::Console::FOREGROUND_INTENSITY;
use windows_sys::Win32::System::Console::FOREGROUND_RED;
use std::os::windows::io::RawHandle;
const FOREGROUND_CYAN: CONSOLE_CHARACTER_ATTRIBUTES = FOREGROUND_BLUE | FOREGROUND_GREEN;
const FOREGROUND_MAGENTA: CONSOLE_CHARACTER_ATTRIBUTES = FOREGROUND_BLUE | FOREGROUND_RED;
const FOREGROUND_YELLOW: CONSOLE_CHARACTER_ATTRIBUTES = FOREGROUND_GREEN | FOREGROUND_RED;
const FOREGROUND_WHITE: CONSOLE_CHARACTER_ATTRIBUTES =
FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED;
#[derive(Copy, Clone, Debug)]
pub(crate) enum IoError {
BrokenPipe,
RawOs(i32),
}
impl From<IoError> for std::io::Error {
fn from(io: IoError) -> Self {
match io {
IoError::BrokenPipe => {
std::io::Error::new(std::io::ErrorKind::BrokenPipe, "console is detached")
}
IoError::RawOs(code) => std::io::Error::from_raw_os_error(code),
}
}
}
impl IoError {
fn last_os_error() -> Self {
Self::RawOs(std::io::Error::last_os_error().raw_os_error().unwrap())
}
}
pub(crate) fn get_screen_buffer_info(
handle: RawHandle,
) -> Result<CONSOLE_SCREEN_BUFFER_INFO, IoError> {
unsafe {
let handle = std::mem::transmute(handle);
if handle == 0 {
return Err(IoError::BrokenPipe);
}
let mut info: CONSOLE_SCREEN_BUFFER_INFO = std::mem::zeroed();
if windows_sys::Win32::System::Console::GetConsoleScreenBufferInfo(handle, &mut info)
!= 0
{
Ok(info)
} else {
Err(IoError::last_os_error())
}
}
}
pub(crate) fn set_console_text_attributes(
handle: RawHandle,
attributes: CONSOLE_CHARACTER_ATTRIBUTES,
) -> Result<(), IoError> {
unsafe {
let handle = std::mem::transmute(handle);
if handle == 0 {
return Err(IoError::BrokenPipe);
}
if windows_sys::Win32::System::Console::SetConsoleTextAttribute(handle, attributes) != 0
{
Ok(())
} else {
Err(IoError::last_os_error())
}
}
}
pub(crate) fn get_colors(
info: &CONSOLE_SCREEN_BUFFER_INFO,
) -> (anstyle::AnsiColor, anstyle::AnsiColor) {
let attributes = info.wAttributes;
let bg = from_nibble(attributes >> 4);
let fg = from_nibble(attributes);
(fg, bg)
}
pub(crate) fn set_colors(
fg: anstyle::AnsiColor,
bg: anstyle::AnsiColor,
) -> CONSOLE_CHARACTER_ATTRIBUTES {
to_nibble(bg) << 4 | to_nibble(fg)
}
fn from_nibble(color: CONSOLE_CHARACTER_ATTRIBUTES) -> anstyle::AnsiColor {
if color & FOREGROUND_WHITE == FOREGROUND_WHITE {
// 3 bits high
anstyle::AnsiColor::White
} else if color & FOREGROUND_CYAN == FOREGROUND_CYAN {
// 2 bits high
anstyle::AnsiColor::Cyan
} else if color & FOREGROUND_YELLOW == FOREGROUND_YELLOW {
// 2 bits high
anstyle::AnsiColor::Yellow
} else if color & FOREGROUND_MAGENTA == FOREGROUND_MAGENTA {
// 2 bits high
anstyle::AnsiColor::Magenta
} else if color & FOREGROUND_RED == FOREGROUND_RED {
// 1 bit high
anstyle::AnsiColor::Red
} else if color & FOREGROUND_GREEN == FOREGROUND_GREEN {
// 1 bit high
anstyle::AnsiColor::Green
} else if color & FOREGROUND_BLUE == FOREGROUND_BLUE {
// 1 bit high
anstyle::AnsiColor::Blue
} else {
// 0 bits high
anstyle::AnsiColor::Black
}
.bright(color & FOREGROUND_INTENSITY == FOREGROUND_INTENSITY)
}
fn to_nibble(color: anstyle::AnsiColor) -> CONSOLE_CHARACTER_ATTRIBUTES {
let mut attributes = 0;
attributes |= match color.bright(false) {
anstyle::AnsiColor::Black => 0,
anstyle::AnsiColor::Red => FOREGROUND_RED,
anstyle::AnsiColor::Green => FOREGROUND_GREEN,
anstyle::AnsiColor::Yellow => FOREGROUND_YELLOW,
anstyle::AnsiColor::Blue => FOREGROUND_BLUE,
anstyle::AnsiColor::Magenta => FOREGROUND_MAGENTA,
anstyle::AnsiColor::Cyan => FOREGROUND_CYAN,
anstyle::AnsiColor::White => FOREGROUND_WHITE,
anstyle::AnsiColor::BrightBlack
| anstyle::AnsiColor::BrightRed
| anstyle::AnsiColor::BrightGreen
| anstyle::AnsiColor::BrightYellow
| anstyle::AnsiColor::BrightBlue
| anstyle::AnsiColor::BrightMagenta
| anstyle::AnsiColor::BrightCyan
| anstyle::AnsiColor::BrightWhite => unreachable!("brights were toggled off"),
};
if color.is_bright() {
attributes |= FOREGROUND_INTENSITY;
}
attributes
}
#[test]
fn to_from_nibble() {
const COLORS: [anstyle::AnsiColor; 16] = [
anstyle::AnsiColor::Black,
anstyle::AnsiColor::Red,
anstyle::AnsiColor::Green,
anstyle::AnsiColor::Yellow,
anstyle::AnsiColor::Blue,
anstyle::AnsiColor::Magenta,
anstyle::AnsiColor::Cyan,
anstyle::AnsiColor::White,
anstyle::AnsiColor::BrightBlack,
anstyle::AnsiColor::BrightRed,
anstyle::AnsiColor::BrightGreen,
anstyle::AnsiColor::BrightYellow,
anstyle::AnsiColor::BrightBlue,
anstyle::AnsiColor::BrightMagenta,
anstyle::AnsiColor::BrightCyan,
anstyle::AnsiColor::BrightWhite,
];
for expected in COLORS {
let nibble = to_nibble(expected);
let actual = from_nibble(nibble);
assert_eq!(expected, actual, "Intermediate: {}", nibble);
}
}
}

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{"files":{"Cargo.lock":"ccf805a1b70ac0205b4a5f39db4c21ff2b6c2420d58120f5b74ebd574de3beed","Cargo.toml":"cecc5e02aafb4fa8bcbbcd64eb0c91fada8bcb6ca2514504540e01227295b7b1","LICENSE-APACHE":"c6596eb7be8581c18be736c846fb9173b69eccf6ef94c5135893ec56bd92ba08","LICENSE-MIT":"3dad3b7606dec7ce40f54546e0dd485aeb52a45d4fcdfdaf830fd8349bbe43a5","README.md":"dcb157ba695dd8f1572944cc5bf84b8f67f8bb73925a5b725a9e274c755ce1a6","examples/dump.rs":"236dd2a3dce7512d1faeda5caec8d272299441b5d204696957940c687a021be8","src/color.rs":"8ac17093415630424ab61ca7a674aa98c39438bee51ae9d294072b1d2b17e743","src/effect.rs":"64573c03643af32ed5efe941ccdecb3f4c89685db1b4fbf35a0803e0347f06ee","src/lib.rs":"0106395ba7263dbee67458e5ff4038cab493a3d34f3dcf0cb75504b1531a58e1","src/macros.rs":"0c90b45626fe8331d5b3326abb831f4ba6e04bcc975b1b9c01e465715050caa2","src/reset.rs":"8f8c2f996e5f446d2bbcfb9926494fb2ad76701260225ab6b627960c53dfcb59","src/style.rs":"fecf7c3fcdd00a26727c62861f4ce532ff80df0e0c6a9b4e288d3d2a3d1e4d65"},"package":"7079075b41f533b8c61d2a4d073c4676e1f8b249ff94a393b0595db304e0dd87"}

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# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 3
[[package]]
name = "anstyle"
version = "1.0.4"
dependencies = [
"lexopt",
]
[[package]]
name = "lexopt"
version = "0.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "baff4b617f7df3d896f97fe922b64817f6cd9a756bb81d40f8883f2f66dcb401"

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# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
#
# When uploading crates to the registry Cargo will automatically
# "normalize" Cargo.toml files for maximal compatibility
# with all versions of Cargo and also rewrite `path` dependencies
# to registry (e.g., crates.io) dependencies.
#
# If you are reading this file be aware that the original Cargo.toml
# will likely look very different (and much more reasonable).
# See Cargo.toml.orig for the original contents.
[package]
edition = "2021"
rust-version = "1.70.0"
name = "anstyle"
version = "1.0.4"
include = [
"build.rs",
"src/**/*",
"Cargo.toml",
"Cargo.lock",
"LICENSE*",
"README.md",
"benches/**/*",
"examples/**/*",
]
description = "ANSI text styling"
homepage = "https://github.com/rust-cli/anstyle"
readme = "README.md"
keywords = [
"ansi",
"terminal",
"color",
"no_std",
]
categories = ["command-line-interface"]
license = "MIT OR Apache-2.0"
repository = "https://github.com/rust-cli/anstyle.git"
[package.metadata.release]
tag-prefix = ""
[[package.metadata.release.pre-release-replacements]]
file = "CHANGELOG.md"
min = 1
replace = "{{version}}"
search = "Unreleased"
[[package.metadata.release.pre-release-replacements]]
exactly = 1
file = "CHANGELOG.md"
replace = "...{{tag_name}}"
search = '\.\.\.HEAD'
[[package.metadata.release.pre-release-replacements]]
file = "CHANGELOG.md"
min = 1
replace = "{{date}}"
search = "ReleaseDate"
[[package.metadata.release.pre-release-replacements]]
exactly = 1
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replace = """
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"""
search = "<!-- next-header -->"
[[package.metadata.release.pre-release-replacements]]
exactly = 1
file = "CHANGELOG.md"
replace = """
<!-- next-url -->
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search = "<!-- next-url -->"
[dependencies]
[dev-dependencies.lexopt]
version = "0.3.0"
[features]
default = ["std"]
std = []

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Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
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unless required by applicable law (such as deliberate and grossly
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has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
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To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "{}"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
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Licensed under the Apache License, Version 2.0 (the "License");
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Copyright (c) 2022 The rust-cli Developers
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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# anstyle
> ANSI text styling
*A portmanteau of "ansi style"*
[![Documentation](https://img.shields.io/badge/docs-master-blue.svg)][Documentation]
![License](https://img.shields.io/crates/l/anstyle.svg)
[![Crates Status](https://img.shields.io/crates/v/anstyle.svg)](https://crates.io/crates/anstyle)
`anstyle` provides core types describing [ANSI styling escape
codes](https://en.wikipedia.org/wiki/ANSI_escape_code) for interoperability
between crates. For example, this would allow a crate to provide an API for
customizing the colors used without putting the underlying text styling crate
in the API.
For integration with your text styling crate, see:
- [anstyle-termcolor](crates/termcolor)
- [anstyle-owo-colors](crates/owo)
- [anstyle-yansi](crates/yansi)
General utilities:
- [anstyle-git](crates/git): Parse Git style descriptions
## License
Licensed under either of
* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
* MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
at your option.
### Contribution
Unless you explicitly state otherwise, any contribution intentionally
submitted for inclusion in the work by you, as defined in the Apache-2.0
license, shall be dual licensed as above, without any additional terms or
conditions.
[Crates.io]: https://crates.io/crates/anstyle
[Documentation]: https://docs.rs/anstyle

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use std::io::Write;
fn main() -> Result<(), lexopt::Error> {
let args = Args::parse()?;
let stdout = std::io::stdout();
let mut stdout = stdout.lock();
for fixed in 0..16 {
let style = style(fixed, args.layer, args.effects);
let _ = print_number(&mut stdout, fixed, style);
if fixed == 7 || fixed == 15 {
let _ = writeln!(&mut stdout);
}
}
for r in 0..6 {
let _ = writeln!(stdout);
for g in 0..6 {
for b in 0..6 {
let fixed = r * 36 + g * 6 + b + 16;
let style = style(fixed, args.layer, args.effects);
let _ = print_number(&mut stdout, fixed, style);
}
let _ = writeln!(stdout);
}
}
for c in 0..24 {
if 0 == c % 8 {
let _ = writeln!(stdout);
}
let fixed = 232 + c;
let style = style(fixed, args.layer, args.effects);
let _ = print_number(&mut stdout, fixed, style);
}
Ok(())
}
fn style(fixed: u8, layer: Layer, effects: anstyle::Effects) -> anstyle::Style {
let color = anstyle::Ansi256Color(fixed).into();
(match layer {
Layer::Fg => anstyle::Style::new().fg_color(Some(color)),
Layer::Bg => anstyle::Style::new().bg_color(Some(color)),
Layer::Underline => anstyle::Style::new().underline_color(Some(color)),
}) | effects
}
fn print_number(
stdout: &mut std::io::StdoutLock<'_>,
fixed: u8,
style: anstyle::Style,
) -> std::io::Result<()> {
write!(
stdout,
"{}{:>4}{}",
style.render(),
fixed,
anstyle::Reset.render()
)
}
#[derive(Default)]
struct Args {
effects: anstyle::Effects,
layer: Layer,
}
#[derive(Copy, Clone, Default)]
enum Layer {
#[default]
Fg,
Bg,
Underline,
}
impl Args {
fn parse() -> Result<Self, lexopt::Error> {
use lexopt::prelude::*;
let mut res = Args::default();
let mut args = lexopt::Parser::from_env();
while let Some(arg) = args.next()? {
match arg {
Long("layer") => {
res.layer = args.value()?.parse_with(|s| match s {
"fg" => Ok(Layer::Fg),
"bg" => Ok(Layer::Bg),
"underline" => Ok(Layer::Underline),
_ => Err("expected values fg, bg, underline"),
})?;
}
Long("effect") => {
const EFFECTS: [(&str, anstyle::Effects); 12] = [
("bold", anstyle::Effects::BOLD),
("dimmed", anstyle::Effects::DIMMED),
("italic", anstyle::Effects::ITALIC),
("underline", anstyle::Effects::UNDERLINE),
("double_underline", anstyle::Effects::DOUBLE_UNDERLINE),
("curly_underline", anstyle::Effects::CURLY_UNDERLINE),
("dotted_underline", anstyle::Effects::DOTTED_UNDERLINE),
("dashed_underline", anstyle::Effects::DASHED_UNDERLINE),
("blink", anstyle::Effects::BLINK),
("invert", anstyle::Effects::INVERT),
("hidden", anstyle::Effects::HIDDEN),
("strikethrough", anstyle::Effects::STRIKETHROUGH),
];
let effect = args.value()?.parse_with(|s| {
EFFECTS
.into_iter()
.find(|(name, _)| *name == s)
.map(|(_, effect)| effect)
.ok_or_else(|| {
format!(
"expected one of {}",
EFFECTS
.into_iter()
.map(|(n, _)| n)
.collect::<Vec<_>>()
.join(", ")
)
})
})?;
res.effects = res.effects.insert(effect);
}
_ => return Err(arg.unexpected()),
}
}
Ok(res)
}
}

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/// Any ANSI color code scheme
#[derive(Copy, Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub enum Color {
Ansi(AnsiColor),
Ansi256(Ansi256Color),
Rgb(RgbColor),
}
impl Color {
/// Create a [`Style`][crate::Style] with this as the foreground
#[inline]
pub fn on(self, background: impl Into<Color>) -> crate::Style {
crate::Style::new()
.fg_color(Some(self))
.bg_color(Some(background.into()))
}
/// Create a [`Style`][crate::Style] with this as the foreground
#[inline]
pub const fn on_default(self) -> crate::Style {
crate::Style::new().fg_color(Some(self))
}
/// Render the ANSI code for a foreground color
#[inline]
pub fn render_fg(self) -> impl core::fmt::Display + Copy + Clone {
match self {
Self::Ansi(color) => DisplayBuffer::default().write_str(color.as_fg_str()),
Self::Ansi256(color) => color.as_fg_buffer(),
Self::Rgb(color) => color.as_fg_buffer(),
}
}
#[inline]
#[cfg(feature = "std")]
pub(crate) fn write_fg_to(self, write: &mut dyn std::io::Write) -> std::io::Result<()> {
let buffer = match self {
Self::Ansi(color) => DisplayBuffer::default().write_str(color.as_fg_str()),
Self::Ansi256(color) => color.as_fg_buffer(),
Self::Rgb(color) => color.as_fg_buffer(),
};
buffer.write_to(write)
}
/// Render the ANSI code for a background color
#[inline]
pub fn render_bg(self) -> impl core::fmt::Display + Copy + Clone {
match self {
Self::Ansi(color) => DisplayBuffer::default().write_str(color.as_bg_str()),
Self::Ansi256(color) => color.as_bg_buffer(),
Self::Rgb(color) => color.as_bg_buffer(),
}
}
#[inline]
#[cfg(feature = "std")]
pub(crate) fn write_bg_to(self, write: &mut dyn std::io::Write) -> std::io::Result<()> {
let buffer = match self {
Self::Ansi(color) => DisplayBuffer::default().write_str(color.as_bg_str()),
Self::Ansi256(color) => color.as_bg_buffer(),
Self::Rgb(color) => color.as_bg_buffer(),
};
buffer.write_to(write)
}
#[inline]
pub(crate) fn render_underline(self) -> impl core::fmt::Display + Copy + Clone {
match self {
Self::Ansi(color) => color.as_underline_buffer(),
Self::Ansi256(color) => color.as_underline_buffer(),
Self::Rgb(color) => color.as_underline_buffer(),
}
}
#[inline]
#[cfg(feature = "std")]
pub(crate) fn write_underline_to(self, write: &mut dyn std::io::Write) -> std::io::Result<()> {
let buffer = match self {
Self::Ansi(color) => color.as_underline_buffer(),
Self::Ansi256(color) => color.as_underline_buffer(),
Self::Rgb(color) => color.as_underline_buffer(),
};
buffer.write_to(write)
}
}
impl From<AnsiColor> for Color {
#[inline]
fn from(inner: AnsiColor) -> Self {
Self::Ansi(inner)
}
}
impl From<Ansi256Color> for Color {
#[inline]
fn from(inner: Ansi256Color) -> Self {
Self::Ansi256(inner)
}
}
impl From<RgbColor> for Color {
#[inline]
fn from(inner: RgbColor) -> Self {
Self::Rgb(inner)
}
}
impl From<u8> for Color {
#[inline]
fn from(inner: u8) -> Self {
Self::Ansi256(inner.into())
}
}
impl From<(u8, u8, u8)> for Color {
#[inline]
fn from(inner: (u8, u8, u8)) -> Self {
Self::Rgb(inner.into())
}
}
/// Available 4-bit ANSI color palette codes
///
/// The user's terminal defines the meaning of the each palette code.
#[derive(Copy, Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
#[repr(u8)]
pub enum AnsiColor {
/// Black: #0 (foreground code `30`, background code `40`).
Black,
/// Red: #1 (foreground code `31`, background code `41`).
Red,
/// Green: #2 (foreground code `32`, background code `42`).
Green,
/// Yellow: #3 (foreground code `33`, background code `43`).
Yellow,
/// Blue: #4 (foreground code `34`, background code `44`).
Blue,
/// Magenta: #5 (foreground code `35`, background code `45`).
Magenta,
/// Cyan: #6 (foreground code `36`, background code `46`).
Cyan,
/// White: #7 (foreground code `37`, background code `47`).
White,
/// Bright black: #0 (foreground code `90`, background code `100`).
BrightBlack,
/// Bright red: #1 (foreground code `91`, background code `101`).
BrightRed,
/// Bright green: #2 (foreground code `92`, background code `102`).
BrightGreen,
/// Bright yellow: #3 (foreground code `93`, background code `103`).
BrightYellow,
/// Bright blue: #4 (foreground code `94`, background code `104`).
BrightBlue,
/// Bright magenta: #5 (foreground code `95`, background code `105`).
BrightMagenta,
/// Bright cyan: #6 (foreground code `96`, background code `106`).
BrightCyan,
/// Bright white: #7 (foreground code `97`, background code `107`).
BrightWhite,
}
impl AnsiColor {
/// Create a [`Style`][crate::Style] with this as the foreground
#[inline]
pub fn on(self, background: impl Into<Color>) -> crate::Style {
crate::Style::new()
.fg_color(Some(self.into()))
.bg_color(Some(background.into()))
}
/// Create a [`Style`][crate::Style] with this as the foreground
#[inline]
pub const fn on_default(self) -> crate::Style {
crate::Style::new().fg_color(Some(Color::Ansi(self)))
}
/// Render the ANSI code for a foreground color
#[inline]
pub fn render_fg(self) -> impl core::fmt::Display + Copy + Clone {
self.as_fg_str()
}
#[inline]
fn as_fg_str(&self) -> &'static str {
match self {
Self::Black => escape!("3", "0"),
Self::Red => escape!("3", "1"),
Self::Green => escape!("3", "2"),
Self::Yellow => escape!("3", "3"),
Self::Blue => escape!("3", "4"),
Self::Magenta => escape!("3", "5"),
Self::Cyan => escape!("3", "6"),
Self::White => escape!("3", "7"),
Self::BrightBlack => escape!("9", "0"),
Self::BrightRed => escape!("9", "1"),
Self::BrightGreen => escape!("9", "2"),
Self::BrightYellow => escape!("9", "3"),
Self::BrightBlue => escape!("9", "4"),
Self::BrightMagenta => escape!("9", "5"),
Self::BrightCyan => escape!("9", "6"),
Self::BrightWhite => escape!("9", "7"),
}
}
/// Render the ANSI code for a background color
#[inline]
pub fn render_bg(self) -> impl core::fmt::Display + Copy + Clone {
self.as_bg_str()
}
#[inline]
fn as_bg_str(&self) -> &'static str {
match self {
Self::Black => escape!("4", "0"),
Self::Red => escape!("4", "1"),
Self::Green => escape!("4", "2"),
Self::Yellow => escape!("4", "3"),
Self::Blue => escape!("4", "4"),
Self::Magenta => escape!("4", "5"),
Self::Cyan => escape!("4", "6"),
Self::White => escape!("4", "7"),
Self::BrightBlack => escape!("10", "0"),
Self::BrightRed => escape!("10", "1"),
Self::BrightGreen => escape!("10", "2"),
Self::BrightYellow => escape!("10", "3"),
Self::BrightBlue => escape!("10", "4"),
Self::BrightMagenta => escape!("10", "5"),
Self::BrightCyan => escape!("10", "6"),
Self::BrightWhite => escape!("10", "7"),
}
}
#[inline]
fn as_underline_buffer(&self) -> DisplayBuffer {
// No per-color codes; must delegate to `Ansi256Color`
Ansi256Color::from(*self).as_underline_buffer()
}
/// Change the color to/from bright
#[must_use]
#[inline]
pub fn bright(self, yes: bool) -> Self {
if yes {
match self {
Self::Black => Self::BrightBlack,
Self::Red => Self::BrightRed,
Self::Green => Self::BrightGreen,
Self::Yellow => Self::BrightYellow,
Self::Blue => Self::BrightBlue,
Self::Magenta => Self::BrightMagenta,
Self::Cyan => Self::BrightCyan,
Self::White => Self::BrightWhite,
Self::BrightBlack => self,
Self::BrightRed => self,
Self::BrightGreen => self,
Self::BrightYellow => self,
Self::BrightBlue => self,
Self::BrightMagenta => self,
Self::BrightCyan => self,
Self::BrightWhite => self,
}
} else {
match self {
Self::Black => self,
Self::Red => self,
Self::Green => self,
Self::Yellow => self,
Self::Blue => self,
Self::Magenta => self,
Self::Cyan => self,
Self::White => self,
Self::BrightBlack => Self::Black,
Self::BrightRed => Self::Red,
Self::BrightGreen => Self::Green,
Self::BrightYellow => Self::Yellow,
Self::BrightBlue => Self::Blue,
Self::BrightMagenta => Self::Magenta,
Self::BrightCyan => Self::Cyan,
Self::BrightWhite => Self::White,
}
}
}
/// Report whether the color is bright
#[inline]
pub fn is_bright(self) -> bool {
match self {
Self::Black => false,
Self::Red => false,
Self::Green => false,
Self::Yellow => false,
Self::Blue => false,
Self::Magenta => false,
Self::Cyan => false,
Self::White => false,
Self::BrightBlack => true,
Self::BrightRed => true,
Self::BrightGreen => true,
Self::BrightYellow => true,
Self::BrightBlue => true,
Self::BrightMagenta => true,
Self::BrightCyan => true,
Self::BrightWhite => true,
}
}
}
/// 256 (8-bit) color support
///
/// - `0..16` are [`AnsiColor`] palette codes
/// - `0..232` map to [`RgbColor`] color values
/// - `232..` map to [`RgbColor`] gray-scale values
#[derive(Copy, Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
#[repr(transparent)]
pub struct Ansi256Color(pub u8);
impl Ansi256Color {
/// Create a [`Style`][crate::Style] with this as the foreground
#[inline]
pub fn on(self, background: impl Into<Color>) -> crate::Style {
crate::Style::new()
.fg_color(Some(self.into()))
.bg_color(Some(background.into()))
}
/// Create a [`Style`][crate::Style] with this as the foreground
#[inline]
pub const fn on_default(self) -> crate::Style {
crate::Style::new().fg_color(Some(Color::Ansi256(self)))
}
#[inline]
pub const fn index(self) -> u8 {
self.0
}
#[inline]
pub const fn into_ansi(self) -> Option<AnsiColor> {
match self.index() {
0 => Some(AnsiColor::Black),
1 => Some(AnsiColor::Red),
2 => Some(AnsiColor::Green),
3 => Some(AnsiColor::Yellow),
4 => Some(AnsiColor::Blue),
5 => Some(AnsiColor::Magenta),
6 => Some(AnsiColor::Cyan),
7 => Some(AnsiColor::White),
8 => Some(AnsiColor::BrightBlack),
9 => Some(AnsiColor::BrightRed),
10 => Some(AnsiColor::BrightGreen),
11 => Some(AnsiColor::BrightYellow),
12 => Some(AnsiColor::BrightBlue),
13 => Some(AnsiColor::BrightMagenta),
14 => Some(AnsiColor::BrightCyan),
15 => Some(AnsiColor::BrightWhite),
_ => None,
}
}
#[inline]
pub const fn from_ansi(color: AnsiColor) -> Self {
match color {
AnsiColor::Black => Self(0),
AnsiColor::Red => Self(1),
AnsiColor::Green => Self(2),
AnsiColor::Yellow => Self(3),
AnsiColor::Blue => Self(4),
AnsiColor::Magenta => Self(5),
AnsiColor::Cyan => Self(6),
AnsiColor::White => Self(7),
AnsiColor::BrightBlack => Self(8),
AnsiColor::BrightRed => Self(9),
AnsiColor::BrightGreen => Self(10),
AnsiColor::BrightYellow => Self(11),
AnsiColor::BrightBlue => Self(12),
AnsiColor::BrightMagenta => Self(13),
AnsiColor::BrightCyan => Self(14),
AnsiColor::BrightWhite => Self(15),
}
}
/// Render the ANSI code for a foreground color
#[inline]
pub fn render_fg(self) -> impl core::fmt::Display + Copy + Clone {
self.as_fg_buffer()
}
#[inline]
fn as_fg_buffer(&self) -> DisplayBuffer {
DisplayBuffer::default()
.write_str("\x1B[38;5;")
.write_code(self.index())
.write_str("m")
}
/// Render the ANSI code for a background color
#[inline]
pub fn render_bg(self) -> impl core::fmt::Display + Copy + Clone {
self.as_bg_buffer()
}
#[inline]
fn as_bg_buffer(&self) -> DisplayBuffer {
DisplayBuffer::default()
.write_str("\x1B[48;5;")
.write_code(self.index())
.write_str("m")
}
#[inline]
fn as_underline_buffer(&self) -> DisplayBuffer {
DisplayBuffer::default()
.write_str("\x1B[58;5;")
.write_code(self.index())
.write_str("m")
}
}
impl From<u8> for Ansi256Color {
#[inline]
fn from(inner: u8) -> Self {
Self(inner)
}
}
impl From<AnsiColor> for Ansi256Color {
#[inline]
fn from(inner: AnsiColor) -> Self {
Self::from_ansi(inner)
}
}
/// 24-bit ANSI RGB color codes
#[derive(Copy, Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub struct RgbColor(pub u8, pub u8, pub u8);
impl RgbColor {
/// Create a [`Style`][crate::Style] with this as the foreground
#[inline]
pub fn on(self, background: impl Into<Color>) -> crate::Style {
crate::Style::new()
.fg_color(Some(self.into()))
.bg_color(Some(background.into()))
}
/// Create a [`Style`][crate::Style] with this as the foreground
#[inline]
pub const fn on_default(self) -> crate::Style {
crate::Style::new().fg_color(Some(Color::Rgb(self)))
}
#[inline]
pub const fn r(self) -> u8 {
self.0
}
#[inline]
pub const fn g(self) -> u8 {
self.1
}
#[inline]
pub const fn b(self) -> u8 {
self.2
}
/// Render the ANSI code for a foreground color
#[inline]
pub fn render_fg(self) -> impl core::fmt::Display + Copy + Clone {
self.as_fg_buffer()
}
#[inline]
fn as_fg_buffer(&self) -> DisplayBuffer {
DisplayBuffer::default()
.write_str("\x1B[38;2;")
.write_code(self.r())
.write_str(";")
.write_code(self.g())
.write_str(";")
.write_code(self.b())
.write_str("m")
}
/// Render the ANSI code for a background color
#[inline]
pub fn render_bg(self) -> impl core::fmt::Display + Copy + Clone {
self.as_bg_buffer()
}
#[inline]
fn as_bg_buffer(&self) -> DisplayBuffer {
DisplayBuffer::default()
.write_str("\x1B[48;2;")
.write_code(self.r())
.write_str(";")
.write_code(self.g())
.write_str(";")
.write_code(self.b())
.write_str("m")
}
#[inline]
fn as_underline_buffer(&self) -> DisplayBuffer {
DisplayBuffer::default()
.write_str("\x1B[58;2;")
.write_code(self.r())
.write_str(";")
.write_code(self.g())
.write_str(";")
.write_code(self.b())
.write_str("m")
}
}
impl From<(u8, u8, u8)> for RgbColor {
#[inline]
fn from(inner: (u8, u8, u8)) -> Self {
let (r, g, b) = inner;
Self(r, g, b)
}
}
#[derive(Copy, Clone, Default, Debug)]
struct DisplayBuffer {
buffer: [u8; 19],
len: usize,
}
impl DisplayBuffer {
#[must_use]
#[inline(never)]
fn write_str(mut self, part: &'static str) -> Self {
for (i, b) in part.as_bytes().iter().enumerate() {
self.buffer[self.len + i] = *b;
}
self.len += part.len();
self
}
#[must_use]
#[inline(never)]
fn write_code(mut self, code: u8) -> Self {
let c1: u8 = (code / 100) % 10;
let c2: u8 = (code / 10) % 10;
let c3: u8 = code % 10;
let mut printed = true;
if c1 != 0 {
printed = true;
self.buffer[self.len] = b'0' + c1;
self.len += 1;
}
if c2 != 0 || printed {
self.buffer[self.len] = b'0' + c2;
self.len += 1;
}
// If we received a zero value we must still print a value.
self.buffer[self.len] = b'0' + c3;
self.len += 1;
self
}
#[inline]
fn as_str(&self) -> &str {
// SAFETY: Only `&str` can be written to the buffer
unsafe { core::str::from_utf8_unchecked(&self.buffer[0..self.len]) }
}
#[inline]
#[cfg(feature = "std")]
fn write_to(self, write: &mut dyn std::io::Write) -> std::io::Result<()> {
write.write_all(self.as_str().as_bytes())
}
}
impl core::fmt::Display for DisplayBuffer {
#[inline]
fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
self.as_str().fmt(f)
}
}
#[cfg(test)]
#[cfg(feature = "std")]
mod test {
use super::*;
#[test]
fn max_display_buffer() {
let c = RgbColor(255, 255, 255);
let actual = c.render_fg().to_string();
assert_eq!(actual, "\u{1b}[38;2;255;255;255m");
}
}

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/// A set of text effects
///
/// # Examples
///
/// ```rust
/// let effects = anstyle::Effects::BOLD | anstyle::Effects::UNDERLINE;
/// ```
#[derive(Copy, Clone, Default, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub struct Effects(u16);
impl Effects {
const PLAIN: Self = Effects(0);
pub const BOLD: Self = Effects(1 << 0);
pub const DIMMED: Self = Effects(1 << 1);
/// Not widely supported. Sometimes treated as inverse or blink
pub const ITALIC: Self = Effects(1 << 2);
/// Style extensions exist for Kitty, VTE, mintty and iTerm2.
pub const UNDERLINE: Self = Effects(1 << 3);
pub const DOUBLE_UNDERLINE: Self = Effects(1 << 4);
pub const CURLY_UNDERLINE: Self = Effects(1 << 5);
pub const DOTTED_UNDERLINE: Self = Effects(1 << 6);
pub const DASHED_UNDERLINE: Self = Effects(1 << 7);
pub const BLINK: Self = Effects(1 << 8);
/// Swap foreground and background colors; inconsistent emulation
pub const INVERT: Self = Effects(1 << 9);
pub const HIDDEN: Self = Effects(1 << 10);
/// Characters legible but marked as if for deletion. Not supported in Terminal.app
pub const STRIKETHROUGH: Self = Effects(1 << 11);
/// No effects enabled
///
/// # Examples
///
/// ```rust
/// let effects = anstyle::Effects::new();
/// ```
#[inline]
pub const fn new() -> Self {
Self::PLAIN
}
/// Check if no effects are enabled
///
/// # Examples
///
/// ```rust
/// let effects = anstyle::Effects::new();
/// assert!(effects.is_plain());
///
/// let effects = anstyle::Effects::BOLD | anstyle::Effects::UNDERLINE;
/// assert!(!effects.is_plain());
/// ```
#[inline]
pub const fn is_plain(self) -> bool {
self.0 == Self::PLAIN.0
}
/// Returns `true` if all of the effects in `other` are contained within `self`.
///
/// # Examples
///
/// ```rust
/// let effects = anstyle::Effects::BOLD | anstyle::Effects::UNDERLINE;
/// assert!(effects.contains(anstyle::Effects::BOLD));
///
/// let effects = anstyle::Effects::new();
/// assert!(!effects.contains(anstyle::Effects::BOLD));
/// ```
#[inline(always)]
pub const fn contains(self, other: Effects) -> bool {
(other.0 & self.0) == other.0
}
/// Inserts the specified effects in-place.
///
/// # Examples
///
/// ```rust
/// let effects = anstyle::Effects::new().insert(anstyle::Effects::new());
/// assert!(effects.is_plain());
///
/// let effects = anstyle::Effects::new().insert(anstyle::Effects::BOLD);
/// assert!(effects.contains(anstyle::Effects::BOLD));
/// ```
#[inline(always)]
#[must_use]
pub const fn insert(mut self, other: Effects) -> Self {
self.0 |= other.0;
self
}
/// Removes the specified effects in-place.
///
/// # Examples
///
/// ```rust
/// let effects = (anstyle::Effects::BOLD | anstyle::Effects::UNDERLINE).remove(anstyle::Effects::BOLD);
/// assert!(!effects.contains(anstyle::Effects::BOLD));
/// assert!(effects.contains(anstyle::Effects::UNDERLINE));
/// ```
#[inline(always)]
#[must_use]
pub const fn remove(mut self, other: Effects) -> Self {
self.0 &= !other.0;
self
}
/// Reset all effects in-place
/// ```rust
/// let effects = (anstyle::Effects::BOLD | anstyle::Effects::UNDERLINE).clear();
/// assert!(!effects.contains(anstyle::Effects::BOLD));
/// assert!(!effects.contains(anstyle::Effects::UNDERLINE));
/// ```
#[inline(always)]
#[must_use]
pub const fn clear(self) -> Self {
Self::new()
}
/// Enable or disable the specified effects depending on the passed value.
///
/// # Examples
///
/// ```rust
/// let effects = anstyle::Effects::new().set(anstyle::Effects::BOLD, true);
/// assert!(effects.contains(anstyle::Effects::BOLD));
/// ```
#[inline]
#[must_use]
pub const fn set(self, other: Self, enable: bool) -> Self {
if enable {
self.insert(other)
} else {
self.remove(other)
}
}
/// Iterate over enabled effects
#[inline(always)]
pub fn iter(self) -> EffectIter {
EffectIter {
index: 0,
effects: self,
}
}
/// Iterate over enabled effect indices
#[inline(always)]
pub(crate) fn index_iter(self) -> EffectIndexIter {
EffectIndexIter {
index: 0,
effects: self,
}
}
/// Render the ANSI code
#[inline]
pub fn render(self) -> impl core::fmt::Display + Copy + Clone {
EffectsDisplay(self)
}
#[inline]
#[cfg(feature = "std")]
pub(crate) fn write_to(self, write: &mut dyn std::io::Write) -> std::io::Result<()> {
for index in self.index_iter() {
write.write_all(METADATA[index].escape.as_bytes())?;
}
Ok(())
}
}
/// # Examples
///
/// ```rust
/// let effects = anstyle::Effects::new();
/// assert_eq!(format!("{:?}", effects), "Effects()");
///
/// let effects = anstyle::Effects::BOLD | anstyle::Effects::UNDERLINE;
/// assert_eq!(format!("{:?}", effects), "Effects(BOLD | UNDERLINE)");
/// ```
impl core::fmt::Debug for Effects {
fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
write!(f, "Effects(")?;
for (i, index) in self.index_iter().enumerate() {
if i != 0 {
write!(f, " | ")?;
}
write!(f, "{}", METADATA[index].name)?;
}
write!(f, ")")?;
Ok(())
}
}
/// # Examples
///
/// ```rust
/// let effects = anstyle::Effects::BOLD | anstyle::Effects::UNDERLINE;
/// assert_eq!(format!("{:?}", effects), "Effects(BOLD | UNDERLINE)");
/// ```
impl core::ops::BitOr for Effects {
type Output = Self;
#[inline(always)]
fn bitor(self, rhs: Self) -> Self {
self.insert(rhs)
}
}
/// # Examples
///
/// ```rust
/// let mut effects = anstyle::Effects::BOLD;
/// effects |= anstyle::Effects::UNDERLINE;
/// assert_eq!(format!("{:?}", effects), "Effects(BOLD | UNDERLINE)");
/// ```
impl core::ops::BitOrAssign for Effects {
#[inline]
fn bitor_assign(&mut self, other: Self) {
*self = self.insert(other);
}
}
/// # Examples
///
/// ```rust
/// let effects = (anstyle::Effects::BOLD | anstyle::Effects::UNDERLINE) - anstyle::Effects::BOLD;
/// assert_eq!(format!("{:?}", effects), "Effects(UNDERLINE)");
/// ```
impl core::ops::Sub for Effects {
type Output = Self;
#[inline]
fn sub(self, other: Self) -> Self {
self.remove(other)
}
}
/// # Examples
///
/// ```rust
/// let mut effects = anstyle::Effects::BOLD | anstyle::Effects::UNDERLINE;
/// effects -= anstyle::Effects::BOLD;
/// assert_eq!(format!("{:?}", effects), "Effects(UNDERLINE)");
/// ```
impl core::ops::SubAssign for Effects {
#[inline]
fn sub_assign(&mut self, other: Self) {
*self = self.remove(other);
}
}
pub(crate) struct Metadata {
pub(crate) name: &'static str,
pub(crate) escape: &'static str,
}
pub(crate) const METADATA: [Metadata; 12] = [
Metadata {
name: "BOLD",
escape: escape!("1"),
},
Metadata {
name: "DIMMED",
escape: escape!("2"),
},
Metadata {
name: "ITALIC",
escape: escape!("3"),
},
Metadata {
name: "UNDERLINE",
escape: escape!("4"),
},
Metadata {
name: "DOUBLE_UNDERLINE",
escape: escape!("21"),
},
Metadata {
name: "CURLY_UNDERLINE",
escape: escape!("4:3"),
},
Metadata {
name: "DOTTED_UNDERLINE",
escape: escape!("4:4"),
},
Metadata {
name: "DASHED_UNDERLINE",
escape: escape!("4:5"),
},
Metadata {
name: "BLINK",
escape: escape!("5"),
},
Metadata {
name: "INVERT",
escape: escape!("7"),
},
Metadata {
name: "HIDDEN",
escape: escape!("8"),
},
Metadata {
name: "STRIKETHROUGH",
escape: escape!("9"),
},
];
#[derive(Copy, Clone, Default, Debug)]
struct EffectsDisplay(Effects);
impl core::fmt::Display for EffectsDisplay {
#[inline]
fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
for index in self.0.index_iter() {
METADATA[index].escape.fmt(f)?;
}
Ok(())
}
}
#[derive(Clone, Debug, PartialEq, Eq)]
pub struct EffectIter {
index: usize,
effects: Effects,
}
impl Iterator for EffectIter {
type Item = Effects;
fn next(&mut self) -> Option<Self::Item> {
while self.index < METADATA.len() {
let index = self.index;
self.index += 1;
let effect = Effects(1 << index);
if self.effects.contains(effect) {
return Some(effect);
}
}
None
}
}
#[derive(Clone, Debug, PartialEq, Eq)]
pub(crate) struct EffectIndexIter {
index: usize,
effects: Effects,
}
impl Iterator for EffectIndexIter {
type Item = usize;
fn next(&mut self) -> Option<Self::Item> {
while self.index < METADATA.len() {
let index = self.index;
self.index += 1;
let effect = Effects(1 << index);
if self.effects.contains(effect) {
return Some(index);
}
}
None
}
}

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//! ANSI Text Styling
//!
//! *A portmanteau of "ansi style"*
//!
//! `anstyle` provides core types describing [ANSI styling escape
//! codes](https://en.wikipedia.org/wiki/ANSI_escape_code) for interoperability
//! between crates.
//!
//! Example use cases:
//! - An argument parser allowing callers to define the colors used in the help-output without
//! putting the text formatting crate in the public API
//! - A style description parser that can work with any text formatting crate
//!
//! Priorities:
//! 1. API stability
//! 2. Low compile-time and binary-size overhead
//! 3. `const` friendly API for callers to statically define their stylesheet
//!
//! For integration with text styling crate, see:
//! - [anstyle-ansi-term](https://docs.rs/anstyle-ansi-term)
//! - [anstyle-crossterm](https://docs.rs/anstyle-crossterm)
//! - [anstyle-owo-colors](https://docs.rs/anstyle-owo-colors)
//! - [anstyle-termcolor](https://docs.rs/anstyle-termcolor)
//! - [anstyle-yansi](https://docs.rs/anstyle-yansi)
//!
//! User-styling parsers:
//! - [anstyle-git](https://docs.rs/anstyle-git): Parse Git style descriptions
//! - [anstyle-ls](https://docs.rs/anstyle-ls): Parse LS_COLORS style descriptions
//!
//! Convert to other formats
//! - [anstream](https://docs.rs/anstream): A simple cross platform library for writing colored text to a terminal
//! - [anstyle-roff](https://docs.rs/anstyle-roff): For converting to ROFF
//!
//! Utilities
//! - [anstyle-lossy](https://docs.rs/anstyle-lossy): Convert between `anstyle::Color` types
//! - [anstyle-parse](https://docs.rs/anstyle-parse): Parsing ANSI Style Escapes
//! - [anstyle-wincon](https://docs.rs/anstyle-wincon): Styling legacy Microsoft terminals
//!
//! # Examples
//!
//! The core type is [`Style`]:
//! ```rust
//! let style = anstyle::Style::new().bold();
//! ```
#![cfg_attr(not(feature = "std"), no_std)]
#[macro_use]
mod macros;
mod color;
mod effect;
mod reset;
mod style;
pub use color::*;
pub use effect::*;
pub use reset::*;
pub use style::*;

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macro_rules! escape {
($($inner:expr),*) => {
concat!("\x1B[", $($inner),*, "m")
};
}

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vendor/anstyle/src/reset.rs vendored Normal file
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/// Reset terminal formatting
#[derive(Copy, Clone, Default, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub struct Reset;
impl Reset {
/// Render the ANSI code
#[inline]
pub fn render(self) -> impl core::fmt::Display + Copy + Clone {
ResetDisplay
}
}
#[derive(Copy, Clone, Default, Debug)]
struct ResetDisplay;
impl core::fmt::Display for ResetDisplay {
fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
RESET.fmt(f)
}
}
pub(crate) const RESET: &str = "\x1B[0m";

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