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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 12:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 12:47:55 +0000
commit2aadc03ef15cb5ca5cc2af8a7c08e070742f0ac4 (patch)
tree033cc839730fda84ff08db877037977be94e5e3a /vendor/vte
parentInitial commit. (diff)
downloadcargo-2aadc03ef15cb5ca5cc2af8a7c08e070742f0ac4.tar.xz
cargo-2aadc03ef15cb5ca5cc2af8a7c08e070742f0ac4.zip
Adding upstream version 0.70.1+ds1.upstream/0.70.1+ds1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'vendor/vte')
-rw-r--r--vendor/vte/.cargo-checksum.json1
-rw-r--r--vendor/vte/CHANGELOG.md57
-rw-r--r--vendor/vte/Cargo.lock58
-rw-r--r--vendor/vte/Cargo.toml39
-rw-r--r--vendor/vte/LICENSE-APACHE176
-rw-r--r--vendor/vte/LICENSE-MIT25
-rw-r--r--vendor/vte/README.md19
-rw-r--r--vendor/vte/debian/patches/00-remove-nightly-feature9
-rw-r--r--vendor/vte/debian/patches/series1
-rw-r--r--vendor/vte/examples/parselog.rs75
-rw-r--r--vendor/vte/rustfmt.toml13
-rw-r--r--vendor/vte/src/definitions.rs114
-rw-r--r--vendor/vte/src/lib.rs973
-rw-r--r--vendor/vte/src/params.rs142
-rw-r--r--vendor/vte/src/table.rs171
-rw-r--r--vendor/vte/tests/demo.vte2052
16 files changed, 3925 insertions, 0 deletions
diff --git a/vendor/vte/.cargo-checksum.json b/vendor/vte/.cargo-checksum.json
new file mode 100644
index 0000000..e55c6bd
--- /dev/null
+++ b/vendor/vte/.cargo-checksum.json
@@ -0,0 +1 @@
+{"files":{},"package":"6cbce692ab4ca2f1f3047fcf732430249c0e971bfdd2b234cf2c47ad93af5983"} \ No newline at end of file
diff --git a/vendor/vte/CHANGELOG.md b/vendor/vte/CHANGELOG.md
new file mode 100644
index 0000000..f094a89
--- /dev/null
+++ b/vendor/vte/CHANGELOG.md
@@ -0,0 +1,57 @@
+CHANGELOG
+=========
+
+## 0.10.1
+
+- Fixed invalid intermediates when transitioning from DCS to ESC
+
+## 0.10.0
+
+- Changed the type of CSI parameters from i64 to u16
+- All methods of the `Perform` trait are now optional
+
+## 0.9.0
+
+- Added CSI subparameter support; required changes can be seen in Alacritty:
+ https://github.com/alacritty/alacritty/commit/576252294d09c1f52ec73bde03652349bdf5a529#diff-49ac9e6f6e6a855312bfcd393201f18ca53e6148c4a22a3a4949f1f9d1d137a8
+
+## 0.8.0
+
+- Remove C1 ST support in OSCs, fixing OSCs with ST in the payload
+
+## 0.7.1
+
+- Out of bounds when parsing a DCS with more than 16 parameters
+
+## 0.7.0
+
+- Fix params reset between escapes
+- Removed unused parameter from `esc_dispatch`
+
+## 0.6.0
+
+- Fix build failure on Rust 1.36.0
+- Add `bool_terminated` parameter to osc dispatch
+
+## 0.5.0
+
+- Support for dynamically sized escape buffers without feature `no_std`
+- Improved UTF8 parser performance
+- Migrate to Rust 2018
+
+## 0.4.0
+
+- Fix handling of DCS escapes
+
+## 0.3.3
+
+- Fix off-by-one error in CSI parsing when params list was at max length
+ (previously caused a panic).
+- Support no_std
+
+## 0.2.0
+
+- Removes `osc_start`, `osc_put`, and `osc_end`
+- Adds `osc_dispatch` which simply receives a list of parameters
+- Removes `byte: u8` parameter from `hook` and `unhook` because it's always
+ zero.
diff --git a/vendor/vte/Cargo.lock b/vendor/vte/Cargo.lock
new file mode 100644
index 0000000..ff4c42b
--- /dev/null
+++ b/vendor/vte/Cargo.lock
@@ -0,0 +1,58 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "arrayvec"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "23b62fc65de8e4e7f52534fb52b0f3ed04746ae267519eef2a83941e8085068b"
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.26"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a152013215dca273577e18d2bf00fa862b89b24169fb78c4c95aeb07992c9cec"
+dependencies = [
+ "unicode-xid",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c3d0b9745dc2debf507c8422de05d7226cc1f0644216dfdfead988f9b1ab32a7"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "unicode-xid"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
+
+[[package]]
+name = "utf8parse"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "936e4b492acfd135421d8dca4b1aa80a7bfc26e702ef3af710e0752684df5372"
+
+[[package]]
+name = "vte"
+version = "0.10.1"
+dependencies = [
+ "arrayvec",
+ "utf8parse",
+ "vte_generate_state_changes",
+]
+
+[[package]]
+name = "vte_generate_state_changes"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d257817081c7dffcdbab24b9e62d2def62e2ff7d00b1c20062551e6cccc145ff"
+dependencies = [
+ "proc-macro2",
+ "quote",
+]
diff --git a/vendor/vte/Cargo.toml b/vendor/vte/Cargo.toml
new file mode 100644
index 0000000..42b45f3
--- /dev/null
+++ b/vendor/vte/Cargo.toml
@@ -0,0 +1,39 @@
+# 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]
+edition = "2018"
+name = "vte"
+version = "0.10.1"
+authors = ["Joe Wilm <joe@jwilm.com>", "Christian Duerr <contact@christianduerr.com>"]
+exclude = ["/.travis.yml"]
+description = "Parser for implementing terminal emulators"
+documentation = "https://docs.rs/vte/"
+readme = "README.md"
+keywords = ["ansi", "vte", "parser", "terminal"]
+categories = ["parsing", "no-std"]
+license = "Apache-2.0 OR MIT"
+repository = "https://github.com/alacritty/vte"
+[dependencies.arrayvec]
+version = "0.5.1"
+optional = true
+default-features = false
+
+[dependencies.utf8parse]
+version = "0.2.0"
+
+[dependencies.vte_generate_state_changes]
+version = "0.1.0"
+
+[features]
+default = ["no_std"]
+no_std = ["arrayvec"]
diff --git a/vendor/vte/LICENSE-APACHE b/vendor/vte/LICENSE-APACHE
new file mode 100644
index 0000000..1b5ec8b
--- /dev/null
+++ b/vendor/vte/LICENSE-APACHE
@@ -0,0 +1,176 @@
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
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+ "Work" shall mean the work of authorship, whether in Source or
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+ You may add Your own copyright statement to Your modifications and
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+ for use, reproduction, or distribution of Your modifications, or
+ for any such Derivative Works as a whole, provided Your use,
+ reproduction, and distribution of the Work otherwise complies with
+ the conditions stated in this License.
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+5. Submission of Contributions. Unless You explicitly state otherwise,
+ any Contribution intentionally submitted for inclusion in the Work
+ by You to the Licensor shall be under the terms and conditions of
+ this License, without any additional terms or conditions.
+ Notwithstanding the above, nothing herein shall supersede or modify
+ the terms of any separate license agreement you may have executed
+ with Licensor regarding such Contributions.
+
+6. Trademarks. This License does not grant permission to use the trade
+ names, trademarks, service marks, or product names of the Licensor,
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+ origin of the Work and reproducing the content of the NOTICE file.
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+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
+ liable to You for damages, including any direct, indirect, special,
+ 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
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+9. Accepting Warranty or Additional Liability. While redistributing
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+ 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.
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+END OF TERMS AND CONDITIONS
diff --git a/vendor/vte/LICENSE-MIT b/vendor/vte/LICENSE-MIT
new file mode 100644
index 0000000..bb419c2
--- /dev/null
+++ b/vendor/vte/LICENSE-MIT
@@ -0,0 +1,25 @@
+Copyright (c) 2016 Joe Wilm
+
+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.
diff --git a/vendor/vte/README.md b/vendor/vte/README.md
new file mode 100644
index 0000000..a9c016a
--- /dev/null
+++ b/vendor/vte/README.md
@@ -0,0 +1,19 @@
+vte
+===
+
+[![Build Status](https://travis-ci.org/alacritty/vte.svg?branch=master)](https://travis-ci.org/alacritty/vte)
+[![Crates.io Version](https://img.shields.io/crates/v/vte.svg)](https://crates.io/crates/vte/)
+
+Parser for implementing virtual terminal emulators in Rust.
+
+The 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 the `Perform` trait which does something
+useful with the parsed data. The `Parser` handles the book keeping, and the
+`Perform` gets to simply handle actions.
+
+See the [docs] for more info.
+
+[Paul Williams' ANSI parser state machine]: https://vt100.net/emu/dec_ansi_parser
+[docs]: https://docs.rs/crate/vte/
diff --git a/vendor/vte/debian/patches/00-remove-nightly-feature b/vendor/vte/debian/patches/00-remove-nightly-feature
new file mode 100644
index 0000000..0ebb7ce
--- /dev/null
+++ b/vendor/vte/debian/patches/00-remove-nightly-feature
@@ -0,0 +1,9 @@
+--- a/Cargo.toml
++++ b/Cargo.toml
+@@ -72,6 +72,5 @@
+ "bitflags",
+ ]
+ default = ["no_std"]
+-nightly = ["utf8parse/nightly"]
+ no_std = ["arrayvec"]
+ serde = ["dep:serde"]
diff --git a/vendor/vte/debian/patches/series b/vendor/vte/debian/patches/series
new file mode 100644
index 0000000..203bdd7
--- /dev/null
+++ b/vendor/vte/debian/patches/series
@@ -0,0 +1 @@
+00-remove-nightly-feature
diff --git a/vendor/vte/examples/parselog.rs b/vendor/vte/examples/parselog.rs
new file mode 100644
index 0000000..dfd0aee
--- /dev/null
+++ b/vendor/vte/examples/parselog.rs
@@ -0,0 +1,75 @@
+//! Parse input from stdin and log actions on stdout
+use std::io::{self, Read};
+
+use vte::{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: char) {
+ 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: char) {
+ 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::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;
+ },
+ }
+ }
+}
diff --git a/vendor/vte/rustfmt.toml b/vendor/vte/rustfmt.toml
new file mode 100644
index 0000000..9308ba9
--- /dev/null
+++ b/vendor/vte/rustfmt.toml
@@ -0,0 +1,13 @@
+format_code_in_doc_comments = true
+match_block_trailing_comma = true
+condense_wildcard_suffixes = true
+use_field_init_shorthand = true
+overflow_delimited_expr = true
+use_small_heuristics = "Max"
+normalize_comments = true
+reorder_impl_items = true
+use_try_shorthand = true
+newline_style = "Unix"
+format_strings = true
+wrap_comments = true
+comment_width = 100
diff --git a/vendor/vte/src/definitions.rs b/vendor/vte/src/definitions.rs
new file mode 100644
index 0000000..fe7952d
--- /dev/null
+++ b/vendor/vte/src/definitions.rs
@@ -0,0 +1,114 @@
+use core::mem;
+
+#[allow(dead_code)]
+#[derive(Debug, Copy, Clone)]
+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,
+ Ground = 12,
+ OscString = 13,
+ SosPmApcString = 14,
+ Utf8 = 15,
+}
+
+impl Default for State {
+ fn default() -> State {
+ State::Ground
+ }
+}
+
+#[allow(dead_code)]
+#[derive(Debug, Clone, Copy)]
+pub enum Action {
+ None = 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,
+}
+
+/// 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 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)]
+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::None) => (),
+ _ => 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::None) => (),
+ _ => panic!("unpack failed"),
+ }
+
+ match unpack(0xff) {
+ (State::Utf8, Action::BeginUtf8) => (),
+ _ => panic!("unpack failed"),
+ }
+ }
+}
diff --git a/vendor/vte/src/lib.rs b/vendor/vte/src/lib.rs
new file mode 100644
index 0000000..157392a
--- /dev/null
+++ b/vendor/vte/src/lib.rs
@@ -0,0 +1,973 @@
+//! 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.
+//!
+//! [`Parser`]: struct.Parser.html
+//! [`Perform`]: trait.Perform.html
+//! [Paul Williams' ANSI parser state machine]: https://vt100.net/emu/dec_ansi_parser
+#![deny(clippy::all, clippy::if_not_else, clippy::enum_glob_use, clippy::wrong_pub_self_convention)]
+#![cfg_attr(all(feature = "nightly", test), feature(test))]
+#![cfg_attr(feature = "no_std", no_std)]
+
+use core::mem::MaybeUninit;
+
+#[cfg(feature = "no_std")]
+use arrayvec::ArrayVec;
+use utf8parse as utf8;
+
+mod definitions;
+mod params;
+mod table;
+
+pub use params::{Params, ParamsIter};
+
+use definitions::{unpack, Action, State};
+
+const MAX_INTERMEDIATES: usize = 2;
+const MAX_OSC_PARAMS: usize = 16;
+#[cfg(any(feature = "no_std", test))]
+const MAX_OSC_RAW: usize = 1024;
+
+struct VtUtf8Receiver<'a, P: Perform>(&'a mut P, &'a mut State);
+
+impl<'a, P: Perform> utf8::Receiver for VtUtf8Receiver<'a, P> {
+ fn codepoint(&mut self, c: char) {
+ self.0.print(c);
+ *self.1 = State::Ground;
+ }
+
+ fn invalid_sequence(&mut self) {
+ self.0.print('�');
+ *self.1 = State::Ground;
+ }
+}
+
+/// Parser for raw _VTE_ protocol which delegates actions to a [`Perform`]
+///
+/// [`Perform`]: trait.Perform.html
+#[derive(Default)]
+pub struct Parser {
+ state: State,
+ intermediates: [u8; MAX_INTERMEDIATES],
+ intermediate_idx: usize,
+ params: Params,
+ param: u16,
+ #[cfg(feature = "no_std")]
+ osc_raw: ArrayVec<[u8; MAX_OSC_RAW]>,
+ #[cfg(not(feature = "no_std"))]
+ osc_raw: Vec<u8>,
+ osc_params: [(usize, usize); MAX_OSC_PARAMS],
+ osc_num_params: usize,
+ ignoring: bool,
+ utf8_parser: utf8::Parser,
+}
+
+impl Parser {
+ /// 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
+ ///
+ /// [`Perform`]: trait.Perform.html
+ #[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;
+ }
+
+ // Handle state changes in the anywhere state before evaluating changes
+ // for current state.
+ let mut change = table::STATE_CHANGES[State::Anywhere as usize][byte as usize];
+
+ if change == 0 {
+ change = table::STATE_CHANGES[self.state as usize][byte as usize];
+ }
+
+ // Unpack into a state and action
+ let (state, action) = unpack(change);
+
+ self.perform_state_change(performer, state, action, byte);
+ }
+
+ #[inline]
+ fn process_utf8<P>(&mut self, performer: &mut P, byte: u8)
+ where
+ P: Perform,
+ {
+ let mut receiver = VtUtf8Receiver(performer, &mut self.state);
+ let utf8_parser = &mut self.utf8_parser;
+ utf8_parser.advance(&mut receiver, byte);
+ }
+
+ #[inline]
+ fn perform_state_change<P>(&mut self, performer: &mut P, state: State, action: Action, byte: u8)
+ where
+ P: Perform,
+ {
+ macro_rules! maybe_action {
+ ($action:expr, $arg:expr) => {
+ match $action {
+ Action::None => (),
+ action => {
+ self.perform_action(performer, action, $arg);
+ },
+ }
+ };
+ }
+
+ 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);
+ },
+ _ => (),
+ }
+
+ maybe_action!(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 as char);
+ },
+ Action::Put => performer.put(byte),
+ Action::OscStart => {
+ self.osc_raw.clear();
+ self.osc_num_params = 0;
+ },
+ Action::OscPut => {
+ #[cfg(feature = "no_std")]
+ {
+ 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 as char,
+ );
+ },
+ 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::None => (),
+ }
+ }
+}
+
+/// 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: char) {}
+
+ /// 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: char,
+ ) {
+ }
+
+ /// 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) {}
+}
+
+#[cfg(all(test, feature = "no_std"))]
+#[macro_use]
+extern crate std;
+
+#[cfg(test)]
+mod tests {
+ use super::*;
+
+ use std::string::String;
+ use std::vec::Vec;
+
+ static OSC_BYTES: &[u8] = &[
+ 0x1b, 0x5d, // Begin OSC
+ b'2', b';', b'j', b'w', b'i', b'l', b'm', b'@', b'j', b'w', b'i', b'l', b'm', b'-', b'd',
+ b'e', b's', b'k', b':', b' ', b'~', b'/', b'c', b'o', b'd', b'e', b'/', b'a', b'l', b'a',
+ b'c', b'r', b'i', b't', b't', b'y', 0x07, // End OSC
+ ];
+
+ #[derive(Default)]
+ struct Dispatcher {
+ dispatched: Vec<Sequence>,
+ }
+
+ #[derive(Debug, PartialEq, Eq)]
+ enum Sequence {
+ Osc(Vec<Vec<u8>>, bool),
+ Csi(Vec<Vec<u16>>, Vec<u8>, bool, char),
+ Esc(Vec<u8>, bool, u8),
+ DcsHook(Vec<Vec<u16>>, Vec<u8>, bool, char),
+ DcsPut(u8),
+ DcsUnhook,
+ }
+
+ impl Perform for Dispatcher {
+ fn osc_dispatch(&mut self, params: &[&[u8]], bell_terminated: bool) {
+ let params = params.iter().map(|p| p.to_vec()).collect();
+ self.dispatched.push(Sequence::Osc(params, bell_terminated));
+ }
+
+ fn csi_dispatch(&mut self, params: &Params, intermediates: &[u8], ignore: bool, c: char) {
+ let params = params.iter().map(|subparam| subparam.to_vec()).collect();
+ let intermediates = intermediates.to_vec();
+ self.dispatched.push(Sequence::Csi(params, intermediates, ignore, c));
+ }
+
+ fn esc_dispatch(&mut self, intermediates: &[u8], ignore: bool, byte: u8) {
+ let intermediates = intermediates.to_vec();
+ self.dispatched.push(Sequence::Esc(intermediates, ignore, byte));
+ }
+
+ fn hook(&mut self, params: &Params, intermediates: &[u8], ignore: bool, c: char) {
+ let params = params.iter().map(|subparam| subparam.to_vec()).collect();
+ let intermediates = intermediates.to_vec();
+ self.dispatched.push(Sequence::DcsHook(params, intermediates, ignore, c));
+ }
+
+ fn put(&mut self, byte: u8) {
+ self.dispatched.push(Sequence::DcsPut(byte));
+ }
+
+ fn unhook(&mut self) {
+ self.dispatched.push(Sequence::DcsUnhook);
+ }
+ }
+
+ #[test]
+ fn parse_osc() {
+ let mut dispatcher = Dispatcher::default();
+ let mut parser = Parser::new();
+
+ for byte in OSC_BYTES {
+ parser.advance(&mut dispatcher, *byte);
+ }
+
+ assert_eq!(dispatcher.dispatched.len(), 1);
+ match &dispatcher.dispatched[0] {
+ Sequence::Osc(params, _) => {
+ assert_eq!(params.len(), 2);
+ assert_eq!(params[0], &OSC_BYTES[2..3]);
+ assert_eq!(params[1], &OSC_BYTES[4..(OSC_BYTES.len() - 1)]);
+ },
+ _ => panic!("expected osc sequence"),
+ }
+ }
+
+ #[test]
+ fn parse_empty_osc() {
+ let mut dispatcher = Dispatcher::default();
+ let mut parser = Parser::new();
+
+ for byte in &[0x1b, 0x5d, 0x07] {
+ parser.advance(&mut dispatcher, *byte);
+ }
+
+ assert_eq!(dispatcher.dispatched.len(), 1);
+ match &dispatcher.dispatched[0] {
+ Sequence::Osc(..) => (),
+ _ => panic!("expected osc sequence"),
+ }
+ }
+
+ #[test]
+ fn parse_osc_max_params() {
+ let params = std::iter::repeat(";").take(params::MAX_PARAMS + 1).collect::<String>();
+ let input = format!("\x1b]{}\x1b", &params[..]).into_bytes();
+ let mut dispatcher = Dispatcher::default();
+ let mut parser = Parser::new();
+
+ for byte in input {
+ parser.advance(&mut dispatcher, byte);
+ }
+
+ assert_eq!(dispatcher.dispatched.len(), 1);
+ match &dispatcher.dispatched[0] {
+ Sequence::Osc(params, _) => {
+ assert_eq!(params.len(), MAX_OSC_PARAMS);
+ assert!(params.iter().all(Vec::is_empty));
+ },
+ _ => panic!("expected osc sequence"),
+ }
+ }
+
+ #[test]
+ fn osc_bell_terminated() {
+ static INPUT: &[u8] = b"\x1b]11;ff/00/ff\x07";
+ let mut dispatcher = Dispatcher::default();
+ let mut parser = Parser::new();
+
+ for byte in INPUT {
+ parser.advance(&mut dispatcher, *byte);
+ }
+
+ assert_eq!(dispatcher.dispatched.len(), 1);
+ match &dispatcher.dispatched[0] {
+ Sequence::Osc(_, true) => (),
+ _ => panic!("expected osc with bell terminator"),
+ }
+ }
+
+ #[test]
+ fn osc_c0_st_terminated() {
+ static INPUT: &[u8] = b"\x1b]11;ff/00/ff\x1b\\";
+ let mut dispatcher = Dispatcher::default();
+ let mut parser = Parser::new();
+
+ for byte in INPUT {
+ parser.advance(&mut dispatcher, *byte);
+ }
+
+ assert_eq!(dispatcher.dispatched.len(), 2);
+ match &dispatcher.dispatched[0] {
+ Sequence::Osc(_, false) => (),
+ _ => panic!("expected osc with ST terminator"),
+ }
+ }
+
+ #[test]
+ fn parse_osc_with_utf8_arguments() {
+ static INPUT: &[u8] = &[
+ 0x0d, 0x1b, 0x5d, 0x32, 0x3b, 0x65, 0x63, 0x68, 0x6f, 0x20, 0x27, 0xc2, 0xaf, 0x5c,
+ 0x5f, 0x28, 0xe3, 0x83, 0x84, 0x29, 0x5f, 0x2f, 0xc2, 0xaf, 0x27, 0x20, 0x26, 0x26,
+ 0x20, 0x73, 0x6c, 0x65, 0x65, 0x70, 0x20, 0x31, 0x07,
+ ];
+ let mut dispatcher = Dispatcher::default();
+ let mut parser = Parser::new();
+
+ for byte in INPUT {
+ parser.advance(&mut dispatcher, *byte);
+ }
+
+ assert_eq!(dispatcher.dispatched.len(), 1);
+ match &dispatcher.dispatched[0] {
+ Sequence::Osc(params, _) => {
+ assert_eq!(params[0], &[b'2']);
+ assert_eq!(params[1], &INPUT[5..(INPUT.len() - 1)]);
+ },
+ _ => panic!("expected osc sequence"),
+ }
+ }
+
+ #[test]
+ fn osc_containing_string_terminator() {
+ static INPUT: &[u8] = b"\x1b]2;\xe6\x9c\xab\x1b\\";
+ let mut dispatcher = Dispatcher::default();
+ let mut parser = Parser::new();
+
+ for byte in INPUT {
+ parser.advance(&mut dispatcher, *byte);
+ }
+
+ assert_eq!(dispatcher.dispatched.len(), 2);
+ match &dispatcher.dispatched[0] {
+ Sequence::Osc(params, _) => {
+ assert_eq!(params[1], &INPUT[4..(INPUT.len() - 2)]);
+ },
+ _ => panic!("expected osc sequence"),
+ }
+ }
+
+ #[test]
+ fn exceed_max_buffer_size() {
+ static NUM_BYTES: usize = MAX_OSC_RAW + 100;
+ static INPUT_START: &[u8] = &[0x1b, b']', b'5', b'2', b';', b's'];
+ static INPUT_END: &[u8] = &[b'\x07'];
+
+ let mut dispatcher = Dispatcher::default();
+ let mut parser = Parser::new();
+
+ // Create valid OSC escape
+ for byte in INPUT_START {
+ parser.advance(&mut dispatcher, *byte);
+ }
+
+ // Exceed max buffer size
+ for _ in 0..NUM_BYTES {
+ parser.advance(&mut dispatcher, b'a');
+ }
+
+ // Terminate escape for dispatch
+ for byte in INPUT_END {
+ parser.advance(&mut dispatcher, *byte);
+ }
+
+ assert_eq!(dispatcher.dispatched.len(), 1);
+ match &dispatcher.dispatched[0] {
+ Sequence::Osc(params, _) => {
+ assert_eq!(params.len(), 2);
+ assert_eq!(params[0], b"52");
+
+ #[cfg(not(feature = "no_std"))]
+ assert_eq!(params[1].len(), NUM_BYTES + INPUT_END.len());
+
+ #[cfg(feature = "no_std")]
+ assert_eq!(params[1].len(), MAX_OSC_RAW - params[0].len());
+ },
+ _ => panic!("expected osc sequence"),
+ }
+ }
+
+ #[test]
+ fn parse_csi_max_params() {
+ // This will build a list of repeating '1;'s
+ // The length is MAX_PARAMS - 1 because the last semicolon is interpreted
+ // as an implicit zero, making the total number of parameters MAX_PARAMS
+ let params = std::iter::repeat("1;").take(params::MAX_PARAMS - 1).collect::<String>();
+ let input = format!("\x1b[{}p", &params[..]).into_bytes();
+
+ let mut dispatcher = Dispatcher::default();
+ let mut parser = Parser::new();
+
+ for byte in input {
+ parser.advance(&mut dispatcher, byte);
+ }
+
+ assert_eq!(dispatcher.dispatched.len(), 1);
+ match &dispatcher.dispatched[0] {
+ Sequence::Csi(params, _, ignore, _) => {
+ assert_eq!(params.len(), params::MAX_PARAMS);
+ assert!(!ignore);
+ },
+ _ => panic!("expected csi sequence"),
+ }
+ }
+
+ #[test]
+ fn parse_csi_params_ignore_long_params() {
+ // This will build a list of repeating '1;'s
+ // The length is MAX_PARAMS because the last semicolon is interpreted
+ // as an implicit zero, making the total number of parameters MAX_PARAMS + 1
+ let params = std::iter::repeat("1;").take(params::MAX_PARAMS).collect::<String>();
+ let input = format!("\x1b[{}p", &params[..]).into_bytes();
+
+ let mut dispatcher = Dispatcher::default();
+ let mut parser = Parser::new();
+
+ for byte in input {
+ parser.advance(&mut dispatcher, byte);
+ }
+
+ assert_eq!(dispatcher.dispatched.len(), 1);
+ match &dispatcher.dispatched[0] {
+ Sequence::Csi(params, _, ignore, _) => {
+ assert_eq!(params.len(), params::MAX_PARAMS);
+ assert!(ignore);
+ },
+ _ => panic!("expected csi sequence"),
+ }
+ }
+
+ #[test]
+ fn parse_csi_params_trailing_semicolon() {
+ let mut dispatcher = Dispatcher::default();
+ let mut parser = Parser::new();
+
+ for byte in b"\x1b[4;m" {
+ parser.advance(&mut dispatcher, *byte);
+ }
+
+ assert_eq!(dispatcher.dispatched.len(), 1);
+ match &dispatcher.dispatched[0] {
+ Sequence::Csi(params, ..) => assert_eq!(params, &[[4], [0]]),
+ _ => panic!("expected csi sequence"),
+ }
+ }
+
+ #[test]
+ fn parse_csi_params_leading_semicolon() {
+ // Create dispatcher and check state
+ let mut dispatcher = Dispatcher::default();
+ let mut parser = Parser::new();
+
+ for byte in b"\x1b[;4m" {
+ parser.advance(&mut dispatcher, *byte);
+ }
+
+ assert_eq!(dispatcher.dispatched.len(), 1);
+ match &dispatcher.dispatched[0] {
+ Sequence::Csi(params, ..) => assert_eq!(params, &[[0], [4]]),
+ _ => panic!("expected csi sequence"),
+ }
+ }
+
+ #[test]
+ fn parse_long_csi_param() {
+ // The important part is the parameter, which is (i64::MAX + 1)
+ static INPUT: &[u8] = b"\x1b[9223372036854775808m";
+ let mut dispatcher = Dispatcher::default();
+ let mut parser = Parser::new();
+
+ for byte in INPUT {
+ parser.advance(&mut dispatcher, *byte);
+ }
+
+ assert_eq!(dispatcher.dispatched.len(), 1);
+ match &dispatcher.dispatched[0] {
+ Sequence::Csi(params, ..) => assert_eq!(params, &[[std::u16::MAX as u16]]),
+ _ => panic!("expected csi sequence"),
+ }
+ }
+
+ #[test]
+ fn csi_reset() {
+ static INPUT: &[u8] = b"\x1b[3;1\x1b[?1049h";
+ let mut dispatcher = Dispatcher::default();
+ let mut parser = Parser::new();
+
+ for byte in INPUT {
+ parser.advance(&mut dispatcher, *byte);
+ }
+
+ assert_eq!(dispatcher.dispatched.len(), 1);
+ match &dispatcher.dispatched[0] {
+ Sequence::Csi(params, intermediates, ignore, _) => {
+ assert_eq!(intermediates, &[b'?']);
+ assert_eq!(params, &[[1049]]);
+ assert!(!ignore);
+ },
+ _ => panic!("expected csi sequence"),
+ }
+ }
+
+ #[test]
+ fn csi_subparameters() {
+ static INPUT: &[u8] = b"\x1b[38:2:255:0:255;1m";
+ let mut dispatcher = Dispatcher::default();
+ let mut parser = Parser::new();
+
+ for byte in INPUT {
+ parser.advance(&mut dispatcher, *byte);
+ }
+
+ assert_eq!(dispatcher.dispatched.len(), 1);
+ match &dispatcher.dispatched[0] {
+ Sequence::Csi(params, intermediates, ignore, _) => {
+ assert_eq!(params, &[vec![38, 2, 255, 0, 255], vec![1]]);
+ assert_eq!(intermediates, &[]);
+ assert!(!ignore);
+ },
+ _ => panic!("expected csi sequence"),
+ }
+ }
+
+ #[test]
+ fn parse_dcs_max_params() {
+ let params = std::iter::repeat("1;").take(params::MAX_PARAMS + 1).collect::<String>();
+ let input = format!("\x1bP{}p", &params[..]).into_bytes();
+ let mut dispatcher = Dispatcher::default();
+ let mut parser = Parser::new();
+
+ for byte in input {
+ parser.advance(&mut dispatcher, byte);
+ }
+
+ assert_eq!(dispatcher.dispatched.len(), 1);
+ match &dispatcher.dispatched[0] {
+ Sequence::DcsHook(params, _, ignore, _) => {
+ assert_eq!(params.len(), params::MAX_PARAMS);
+ assert!(params.iter().all(|param| param == &[1]));
+ assert!(ignore);
+ },
+ _ => panic!("expected dcs sequence"),
+ }
+ }
+
+ #[test]
+ fn dcs_reset() {
+ static INPUT: &[u8] = b"\x1b[3;1\x1bP1$tx\x9c";
+ let mut dispatcher = Dispatcher::default();
+ let mut parser = Parser::new();
+
+ for byte in INPUT {
+ parser.advance(&mut dispatcher, *byte);
+ }
+
+ assert_eq!(dispatcher.dispatched.len(), 3);
+ match &dispatcher.dispatched[0] {
+ Sequence::DcsHook(params, intermediates, ignore, _) => {
+ assert_eq!(intermediates, &[b'$']);
+ assert_eq!(params, &[[1]]);
+ assert!(!ignore);
+ },
+ _ => panic!("expected dcs sequence"),
+ }
+ assert_eq!(dispatcher.dispatched[1], Sequence::DcsPut(b'x'));
+ assert_eq!(dispatcher.dispatched[2], Sequence::DcsUnhook);
+ }
+
+ #[test]
+ fn parse_dcs() {
+ static INPUT: &[u8] = b"\x1bP0;1|17/ab\x9c";
+ let mut dispatcher = Dispatcher::default();
+ let mut parser = Parser::new();
+
+ for byte in INPUT {
+ parser.advance(&mut dispatcher, *byte);
+ }
+
+ assert_eq!(dispatcher.dispatched.len(), 7);
+ match &dispatcher.dispatched[0] {
+ Sequence::DcsHook(params, _, _, c) => {
+ assert_eq!(params, &[[0], [1]]);
+ assert_eq!(c, &'|');
+ },
+ _ => panic!("expected dcs sequence"),
+ }
+ for (i, byte) in b"17/ab".iter().enumerate() {
+ assert_eq!(dispatcher.dispatched[1 + i], Sequence::DcsPut(*byte));
+ }
+ assert_eq!(dispatcher.dispatched[6], Sequence::DcsUnhook);
+ }
+
+ #[test]
+ fn intermediate_reset_on_dcs_exit() {
+ static INPUT: &[u8] = b"\x1bP=1sZZZ\x1b+\x5c";
+ let mut dispatcher = Dispatcher::default();
+ let mut parser = Parser::new();
+
+ for byte in INPUT {
+ parser.advance(&mut dispatcher, *byte);
+ }
+
+ assert_eq!(dispatcher.dispatched.len(), 6);
+ match &dispatcher.dispatched[5] {
+ Sequence::Esc(intermediates, ..) => assert_eq!(intermediates, &[b'+']),
+ _ => panic!("expected esc sequence"),
+ }
+ }
+
+ #[test]
+ fn esc_reset() {
+ static INPUT: &[u8] = b"\x1b[3;1\x1b(A";
+ let mut dispatcher = Dispatcher::default();
+ let mut parser = Parser::new();
+
+ for byte in INPUT {
+ parser.advance(&mut dispatcher, *byte);
+ }
+
+ assert_eq!(dispatcher.dispatched.len(), 1);
+ match &dispatcher.dispatched[0] {
+ Sequence::Esc(intermediates, ignore, byte) => {
+ assert_eq!(intermediates, &[b'(']);
+ assert_eq!(*byte, b'A');
+ assert!(!ignore);
+ },
+ _ => panic!("expected esc sequence"),
+ }
+ }
+}
+
+#[cfg(all(feature = "nightly", test))]
+mod bench {
+ extern crate std;
+ extern crate test;
+
+ use super::*;
+
+ use test::{black_box, Bencher};
+
+ static VTE_DEMO: &[u8] = include_bytes!("../tests/demo.vte");
+
+ 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: char) {
+ 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: char) {
+ black_box((params, intermediates, ignore, c));
+ }
+
+ fn esc_dispatch(&mut self, intermediates: &[u8], ignore: bool, byte: u8) {
+ black_box((intermediates, ignore, byte));
+ }
+ }
+
+ #[bench]
+ fn testfile(b: &mut Bencher) {
+ b.iter(|| {
+ let mut dispatcher = BenchDispatcher;
+ let mut parser = Parser::new();
+
+ for byte in VTE_DEMO {
+ parser.advance(&mut dispatcher, *byte);
+ }
+ });
+ }
+
+ #[bench]
+ fn state_changes(b: &mut Bencher) {
+ let input = b"\x1b]2;X\x1b\\ \x1b[0m \x1bP0@\x1b\\";
+ b.iter(|| {
+ let mut dispatcher = BenchDispatcher;
+ let mut parser = Parser::new();
+
+ for _ in 0..1_000 {
+ for byte in input {
+ parser.advance(&mut dispatcher, *byte);
+ }
+ }
+ });
+ }
+}
diff --git a/vendor/vte/src/params.rs b/vendor/vte/src/params.rs
new file mode 100644
index 0000000..ca6ba48
--- /dev/null
+++ b/vendor/vte/src/params.rs
@@ -0,0 +1,142 @@
+//! Fixed size parameters list with optional subparameters.
+
+use core::fmt::{self, Debug, Formatter};
+
+pub(crate) const MAX_PARAMS: usize = 32;
+
+#[derive(Default)]
+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.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, "]")
+ }
+}
diff --git a/vendor/vte/src/table.rs b/vendor/vte/src/table.rs
new file mode 100644
index 0000000..f2c0105
--- /dev/null
+++ b/vendor/vte/src/table.rs
@@ -0,0 +1,171 @@
+/// This is the state change table. It's indexed first by current state and then by the next
+/// character in the pty stream.
+use crate::definitions::{pack, Action, State};
+
+use vte_generate_state_changes::generate_state_changes;
+
+// Generate state changes at compile-time
+pub static STATE_CHANGES: [[u8; 256]; 16] = state_changes();
+generate_state_changes!(state_changes, {
+ Anywhere {
+ 0x18 => (Ground, Execute),
+ 0x1a => (Ground, Execute),
+ 0x1b => (Escape, None),
+ },
+
+ 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, None),
+ 0x5d => (OscString, None),
+ 0x50 => (DcsEntry, None),
+ 0x58 => (SosPmApcString, None),
+ 0x5e => (SosPmApcString, None),
+ 0x5f => (SosPmApcString, None),
+ },
+
+ 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, None),
+ },
+
+ 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, None),
+ 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, None),
+ 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, None),
+ },
+
+ DcsIntermediate {
+ 0x00..=0x17 => (Anywhere, Ignore),
+ 0x19 => (Anywhere, Ignore),
+ 0x1c..=0x1f => (Anywhere, Ignore),
+ 0x20..=0x2f => (Anywhere, Collect),
+ 0x7f => (Anywhere, Ignore),
+ 0x30..=0x3f => (DcsIgnore, None),
+ 0x40..=0x7e => (DcsPassthrough, None),
+ },
+
+ DcsIgnore {
+ 0x00..=0x17 => (Anywhere, Ignore),
+ 0x19 => (Anywhere, Ignore),
+ 0x1c..=0x1f => (Anywhere, Ignore),
+ 0x20..=0x7f => (Anywhere, Ignore),
+ 0x9c => (Ground, None),
+ },
+
+ 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, None),
+ 0x20..=0x2f => (DcsIntermediate, Collect),
+ 0x40..=0x7e => (DcsPassthrough, None),
+ },
+
+ DcsPassthrough {
+ 0x00..=0x17 => (Anywhere, Put),
+ 0x19 => (Anywhere, Put),
+ 0x1c..=0x1f => (Anywhere, Put),
+ 0x20..=0x7e => (Anywhere, Put),
+ 0x7f => (Anywhere, Ignore),
+ 0x9c => (Ground, None),
+ },
+
+ SosPmApcString {
+ 0x00..=0x17 => (Anywhere, Ignore),
+ 0x19 => (Anywhere, Ignore),
+ 0x1c..=0x1f => (Anywhere, Ignore),
+ 0x20..=0x7f => (Anywhere, Ignore),
+ 0x9c => (Ground, None),
+ },
+
+ OscString {
+ 0x00..=0x06 => (Anywhere, Ignore),
+ 0x07 => (Ground, None),
+ 0x08..=0x17 => (Anywhere, Ignore),
+ 0x19 => (Anywhere, Ignore),
+ 0x1c..=0x1f => (Anywhere, Ignore),
+ 0x20..=0xff => (Anywhere, OscPut),
+ }
+});
diff --git a/vendor/vte/tests/demo.vte b/vendor/vte/tests/demo.vte
new file mode 100644
index 0000000..ed62b35
--- /dev/null
+++ b/vendor/vte/tests/demo.vte
@@ -0,0 +1,2052 @@
+Test
+RED ON GREEN
+]52;c;Y2xpcGJvYXJkIHRlc3Q=];;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;some random text;  what
+
+
+P0;1|17/ab
+ ]2;echo '¯\_(ツ)_/¯' && sleep 1
+REEEEEED
+Test
+RED ON GREEN
+]52;c;Y2xpcGJvYXJkIHRlc3Q=];;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;some random text;  what
+
+
+P0;1|17/ab
+ ]2;echo '¯\_(ツ)_/¯' && sleep 1
+REEEEEEEEEEEEED
+[6 q
+[0 q
+
+
+
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+30
+31
+32
+33
+34
+35
+36
+37
+38
+39
+40
+41
+42
+43
+44
+45
+46
+47
+48
+49
+50
+51
+52
+53
+54
+55
+56
+57
+58
+59
+60
+61
+62
+63
+64
+65
+66
+67
+68
+69
+70
+71
+72
+73
+74
+75
+76
+77
+78
+79
+80
+81
+82
+83
+84
+85
+86
+87
+88
+89
+90
+91
+92
+93
+94
+95
+96
+97
+98
+99
+100
+101
+102
+103
+104
+105
+106
+107
+108
+109
+110
+111
+112
+113
+114
+115
+116
+117
+118
+119
+120
+121
+122
+123
+124
+125
+126
+127
+128
+129
+130
+131
+132
+133
+134
+135
+136
+137
+138
+139
+140
+141
+142
+143
+144
+145
+146
+147
+148
+149
+150
+151
+152
+153
+154
+155
+156
+157
+158
+159
+160
+161
+162
+163
+164
+165
+166
+167
+168
+169
+170
+171
+172
+173
+174
+175
+176
+177
+178
+179
+180
+181
+182
+183
+184
+185
+186
+187
+188
+189
+190
+191
+192
+193
+194
+195
+196
+197
+198
+199
+200
+201
+202
+203
+204
+205
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