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KitsuneCafe 2024-02-02 19:37:24 -05:00
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1
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/target

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Cargo.toml Normal file
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[package]
name = "roxy_syntect"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
once_cell = "1.19.0"
regex = "1.10.3"
roxy_core = { git = "https://fem.mint.lgbt/kitsunecafe/roxy-core.git" }
syntect = "5.1.0"

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src/lib.rs Normal file
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use std::io::Write;
use once_cell::sync::Lazy;
use regex::{Captures, Regex, RegexBuilder};
use roxy_core::roxy::Parse;
use syntect::{
easy::HighlightLines,
highlighting::{Style, ThemeSet},
html::{highlighted_html_for_string, styled_line_to_highlighted_html},
parsing::SyntaxSet,
util::{as_24_bit_terminal_escaped, LinesWithEndings},
};
const CODE_BLOCK_RE: Lazy<Regex> = Lazy::new(|| {
RegexBuilder::new(r"^```(.+?)\n(.+?)\n```")
.multi_line(true)
.dot_matches_new_line(true)
.build()
.unwrap()
});
pub struct SyntectParser {
syntax_set: SyntaxSet,
theme_set: ThemeSet,
theme: &'static str,
}
impl SyntectParser {
pub fn new(theme: &'static str) -> Self {
Self {
syntax_set: SyntaxSet::load_defaults_newlines(),
theme_set: ThemeSet::load_defaults(),
theme,
}
}
}
impl Parse for SyntectParser {
fn parse(&mut self, _path: &str, src: &[u8], dst: &mut Vec<u8>) -> std::io::Result<()> {
let file = String::from_utf8_lossy(src).to_string();
let result = CODE_BLOCK_RE
.replace_all(file.as_str(), |captures: &Captures| {
let syntax = self.syntax_set.find_syntax_by_token(&captures[1]).unwrap();
highlighted_html_for_string(
&captures[2],
&self.syntax_set,
&syntax,
&self.theme_set.themes[self.theme],
).unwrap()
})
.to_string();
dst.write_all(result.as_bytes())?;
Ok(())
}
}