forked from slonk/bingus-blog
55 lines
1.9 KiB
Rust
55 lines
1.9 KiB
Rust
use std::sync::{Arc, OnceLock, RwLock};
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use comrak::markdown_to_html_with_plugins;
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use comrak::plugins::syntect::{SyntectAdapter, SyntectAdapterBuilder};
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use comrak::ComrakOptions;
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use comrak::RenderPlugins;
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use syntect::highlighting::ThemeSet;
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use crate::config::RenderConfig;
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use crate::hash_arc_store::HashArcStore;
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fn syntect_adapter(config: &RenderConfig) -> Arc<SyntectAdapter> {
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static STATE: OnceLock<RwLock<HashArcStore<SyntectAdapter, RenderConfig>>> = OnceLock::new();
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let lock = STATE.get_or_init(|| RwLock::new(HashArcStore::new()));
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let mut guard = lock.write().unwrap();
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guard.get_or_init(config, build_syntect)
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}
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fn build_syntect(config: &RenderConfig) -> Arc<SyntectAdapter> {
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let mut theme_set = if config.syntect.load_defaults {
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ThemeSet::load_defaults()
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} else {
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ThemeSet::new()
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};
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if let Some(path) = config.syntect.themes_dir.as_ref() {
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theme_set.add_from_folder(path).unwrap();
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}
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let mut builder = SyntectAdapterBuilder::new().theme_set(theme_set);
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if let Some(theme) = config.syntect.theme.as_ref() {
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builder = builder.theme(theme);
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}
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Arc::new(builder.build())
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}
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pub fn render(markdown: &str, config: &RenderConfig) -> String {
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let mut options = ComrakOptions::default();
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options.extension.table = true;
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options.extension.autolink = true;
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options.extension.tasklist = true;
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options.extension.superscript = true;
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options.extension.strikethrough = true;
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options.extension.multiline_block_quotes = true;
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options.extension.header_ids = Some(String::new());
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let mut render_plugins = RenderPlugins::default();
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let syntect = syntect_adapter(config);
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render_plugins.codefence_syntax_highlighter = Some(syntect.as_ref());
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let plugins = comrak::PluginsBuilder::default()
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.render(render_plugins)
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.build()
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.unwrap();
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markdown_to_html_with_plugins(markdown, &options, &plugins)
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}
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