56 lines
1.6 KiB
Rust
56 lines
1.6 KiB
Rust
use color_eyre::Result;
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use pulldown_cmark::Event;
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use pulldown_cmark::Tag;
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use pulldown_cmark::{Options, Parser};
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use crate::hilighting;
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pub fn render_markdown_to_html(markdown: &str) -> Result<String> {
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let options = Options::all();
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let mut content_html = String::new();
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let parser = Parser::new_ext(markdown, options);
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let mut code_block = false;
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let mut code_lang = None;
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let mut code_accumulator = String::new();
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let mut events = Vec::new();
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for event in parser {
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match event {
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Event::Text(text) => {
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if code_block {
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code_accumulator.push_str(&text);
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}
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else {
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events.push(Event::Text(text));
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}
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}
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Event::Start(Tag::CodeBlock(kind)) => {
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code_block = true;
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if let pulldown_cmark::CodeBlockKind::Fenced(lang) = kind {
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code_lang = Some(lang);
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}
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}
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Event::End(Tag::CodeBlock(_)) => {
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code_block = false;
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let lang = code_lang.take().unwrap_or("".into());
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let res = hilighting::hilight(&code_accumulator, &lang).unwrap();
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events.push(Event::Html(res.into()));
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code_accumulator.clear();
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}
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_ => events.push(event),
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}
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}
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events.retain(|e| match e {
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Event::Text(t) | Event::Html(t) => !t.is_empty(),
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_ => true,
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});
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pulldown_cmark::html::push_html(&mut content_html, events.into_iter());
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Ok(content_html)
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}
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