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Updates for syntect 3.0

This commit is contained in:
sharkdp 2018-10-09 21:18:40 +02:00 committed by David Peter
parent e3c71adba7
commit 5842d58c01
5 changed files with 88 additions and 117 deletions
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105
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@ -34,11 +34,11 @@ dependencies = [
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"checksum termios 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "72b620c5ea021d75a735c943269bb07d30c9b77d6ac6b236bc8b5c496ef05625"
"checksum textwrap 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "307686869c93e71f94da64286f9a9524c0f308a9e1c87a583de8e9c9039ad3f6"
"checksum thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c6b53e329000edc2b34dbe8545fd20e55a333362d0a321909685a19bd28c3f1b"
"checksum time 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)" = "d825be0eb33fda1a7e68012d51e9c7f451dc1a69391e7fdc197060bb8c56667b"
"checksum ucd-util 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "fd2be2d6639d0f8fe6cdda291ad456e23629558d466e2789d2c3e9892bda285d"
"checksum unicode-bidi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "49f2bd0c6468a8230e1db229cff8029217cf623c767ea5d60bfbd42729ea54d5"
"checksum unicode-normalization 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "6a0180bc61fc5a987082bfa111f4cc95c4caff7f9799f3e46df09163a937aa25"

2
Cargo.toml
View File

@ -31,7 +31,7 @@ default-features = false
features = []
[dependencies.syntect]
version = "2.1"
version = "3.0"
default-features = false
features = ["parsing", "yaml-load", "dump-load", "dump-create"]

BIN
assets/syntaxes.bin
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Binary file not shown.

93
src/assets.rs
View File

@ -1,13 +1,16 @@
use directories::ProjectDirs;
use errors::*;
use std::borrow::Cow;
use std::collections::BTreeMap;
use std::fs::{self, File};
use std::io::BufReader;
use std::path::{Path, PathBuf};
use syntect::dumps::{dump_to_file, from_binary, from_reader};
use syntect::highlighting::{Theme, ThemeSet};
use syntect::parsing::{SyntaxDefinition, SyntaxSet};
use syntect::parsing::{SyntaxReference, SyntaxSet, SyntaxSetBuilder};
use directories::ProjectDirs;
use errors::*;
use inputfile::{InputFile, InputFileReader};
lazy_static! {
@ -27,31 +30,20 @@ impl HighlightingAssets {
Self::from_cache().unwrap_or_else(|_| Self::from_binary())
}
fn empty() -> Self {
let mut syntax_set = SyntaxSet::new();
syntax_set.load_plain_text_syntax();
let theme_set = ThemeSet {
themes: BTreeMap::new(),
};
HighlightingAssets {
syntax_set,
theme_set,
}
}
pub fn from_files(dir: Option<&Path>, start_empty: bool) -> Result<Self> {
let source_dir = dir.unwrap_or_else(|| PROJECT_DIRS.config_dir());
let mut assets = if start_empty {
Self::empty()
let mut theme_set = if start_empty {
ThemeSet {
themes: BTreeMap::new(),
}
} else {
Self::from_binary_unlinked()
Self::get_integrated_themeset()
};
let theme_dir = source_dir.join("themes");
let res = extend_theme_set(&mut assets.theme_set, &theme_dir);
let res = theme_set.add_from_folder(&theme_dir);
if !res.is_ok() {
println!(
"No themes were found in '{}', using the default set",
@ -59,9 +51,17 @@ impl HighlightingAssets {
);
}
let mut syntax_set_builder = if start_empty {
let mut builder = SyntaxSetBuilder::new();
builder.add_plain_text_syntax();
builder
} else {
Self::get_integrated_syntaxset().into_builder()
};
let syntax_dir = source_dir.join("syntaxes");
if syntax_dir.exists() {
assets.syntax_set.load_syntaxes(syntax_dir, true)?;
syntax_set_builder.add_from_folder(syntax_dir, true)?;
} else {
println!(
"No syntaxes were found in '{}', using the default set.",
@ -69,7 +69,10 @@ impl HighlightingAssets {
);
}
Ok(assets)
Ok(HighlightingAssets {
syntax_set: syntax_set_builder.build(),
theme_set,
})
}
fn from_cache() -> Result<Self> {
@ -80,9 +83,8 @@ impl HighlightingAssets {
syntax_set_path().to_string_lossy()
)
})?;
let mut syntax_set: SyntaxSet =
from_reader(syntax_set_file).chain_err(|| "Could not parse cached syntax set")?;
syntax_set.link_syntaxes();
let syntax_set: SyntaxSet = from_reader(BufReader::new(syntax_set_file))
.chain_err(|| "Could not parse cached syntax set")?;
let theme_set_file = File::open(&theme_set_path).chain_err(|| {
format!(
@ -90,8 +92,8 @@ impl HighlightingAssets {
theme_set_path.to_string_lossy()
)
})?;
let theme_set: ThemeSet =
from_reader(theme_set_file).chain_err(|| "Could not parse cached theme set")?;
let theme_set: ThemeSet = from_reader(BufReader::new(theme_set_file))
.chain_err(|| "Could not parse cached theme set")?;
Ok(HighlightingAssets {
syntax_set,
@ -99,9 +101,17 @@ impl HighlightingAssets {
})
}
fn from_binary_unlinked() -> Self {
let syntax_set: SyntaxSet = from_binary(include_bytes!("../assets/syntaxes.bin"));
let theme_set: ThemeSet = from_binary(include_bytes!("../assets/themes.bin"));
fn get_integrated_syntaxset() -> SyntaxSet {
from_binary(include_bytes!("../assets/syntaxes.bin"))
}
fn get_integrated_themeset() -> ThemeSet {
from_binary(include_bytes!("../assets/themes.bin"))
}
fn from_binary() -> Self {
let syntax_set = Self::get_integrated_syntaxset();
let theme_set = Self::get_integrated_themeset();
HighlightingAssets {
syntax_set,
@ -109,12 +119,6 @@ impl HighlightingAssets {
}
}
fn from_binary() -> Self {
let mut assets = Self::from_binary_unlinked();
assets.syntax_set.link_syntaxes();
assets
}
pub fn save(&self, dir: Option<&Path>) -> Result<()> {
let target_dir = dir.unwrap_or_else(|| PROJECT_DIRS.cache_dir());
let _ = fs::create_dir(target_dir);
@ -168,7 +172,7 @@ impl HighlightingAssets {
language: Option<&str>,
filename: InputFile,
reader: &mut InputFileReader,
) -> &SyntaxDefinition {
) -> &SyntaxReference {
let syntax = match (language, filename) {
(Some(language), _) => self.syntax_set.find_syntax_by_token(language),
(None, InputFile::Ordinary(filename)) => {
@ -199,21 +203,6 @@ impl HighlightingAssets {
}
}
// TODO: this function will soon be part of syntect's `ThemeSet`.
fn extend_theme_set<P: AsRef<Path>>(theme_set: &mut ThemeSet, folder: P) -> Result<()> {
let paths = ThemeSet::discover_theme_paths(folder)?;
for p in &paths {
let theme = ThemeSet::get_theme(p)?;
let basename = p
.file_stem()
.and_then(|x| x.to_str())
.ok_or("Could not get theme basename")?;
theme_set.themes.insert(basename.to_owned(), theme);
}
Ok(())
}
fn theme_set_path() -> PathBuf {
PROJECT_DIRS.cache_dir().join("themes.bin")
}

5
src/printer.rs
View File

@ -8,6 +8,7 @@ use console::AnsiCodeIterator;
use syntect::easy::HighlightLines;
use syntect::highlighting::Theme;
use syntect::parsing::SyntaxSet;
use content_inspector::ContentType;
@ -77,6 +78,7 @@ pub struct InteractivePrinter<'a> {
content_type: ContentType,
pub line_changes: Option<LineChanges>,
highlighter: Option<HighlightLines<'a>>,
syntax_set: &'a SyntaxSet,
}
impl<'a> InteractivePrinter<'a> {
@ -153,6 +155,7 @@ impl<'a> InteractivePrinter<'a> {
ansi_prefix_sgr: String::new(),
line_changes,
highlighter,
syntax_set: &assets.syntax_set,
}
}
@ -267,7 +270,7 @@ impl<'a> Printer for InteractivePrinter<'a> {
return Ok(());
}
};
highlighter.highlight(line.as_ref())
highlighter.highlight(line.as_ref(), self.syntax_set)
};
if out_of_range {