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reduce useless regex allocs 

from 474mb to 215mb

==40876== Total:     474,156,323 bytes in 1,521,025 blocks
==40876== At t-gmax: 13,872,954 bytes in 4,655 blocks
==40876== At t-end:  488,516 bytes in 884 blocks
==40876== Reads:     820,933,434 bytes
==40876== Writes:    514,838,350 bytes

to

==57763== Total:     215,292,393 bytes in 1,161,048 blocks
==57763== At t-gmax: 13,872,954 bytes in 4,655 blocks
==57763== At t-end:  1,210,783 bytes in 1,274 blocks
==57763== Reads:     598,542,892 bytes
==57763== Writes:    229,841,910 bytes
This commit is contained in:
klensy 2024-01-14 15:16:23 +03:00
parent 573b6522f9
commit e3ad9d097e
1 changed files with 5 additions and 4 deletions
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9
src/renderer/html_handlebars/hbs_renderer.rs
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@ -935,8 +935,9 @@ fn add_playground_pre(
/// Modifies all `<code>` blocks to convert "hidden" lines and to wrap them in /// Modifies all `<code>` blocks to convert "hidden" lines and to wrap them in
/// a `<span class="boring">`. /// a `<span class="boring">`.
fn hide_lines(html: &str, code_config: &Code) -> String { fn hide_lines(html: &str, code_config: &Code) -> String {
let language_regex = Regex::new(r"\blanguage-(\w+)\b").unwrap(); static LANGUAGE_REGEX: Lazy<Regex> = Lazy::new(|| Regex::new(r"\blanguage-(\w+)\b").unwrap());
let hidelines_regex = Regex::new(r"\bhidelines=(\S+)").unwrap(); static HIDELINES_REGEX: Lazy<Regex> = Lazy::new(|| Regex::new(r"\bhidelines=(\S+)").unwrap());
CODE_BLOCK_RE CODE_BLOCK_RE
.replace_all(html, |caps: &Captures<'_>| { .replace_all(html, |caps: &Captures<'_>| {
let text = &caps[1]; let text = &caps[1];
@ -951,12 +952,12 @@ fn hide_lines(html: &str, code_config: &Code) -> String {
) )
} else { } else {
// First try to get the prefix from the code block // First try to get the prefix from the code block
let hidelines_capture = hidelines_regex.captures(classes); let hidelines_capture = HIDELINES_REGEX.captures(classes);
let hidelines_prefix = match &hidelines_capture { let hidelines_prefix = match &hidelines_capture {
Some(capture) => Some(&capture[1]), Some(capture) => Some(&capture[1]),
None => { None => {
// Then look up the prefix by language // Then look up the prefix by language
language_regex.captures(classes).and_then(|capture| { LANGUAGE_REGEX.captures(classes).and_then(|capture| {
code_config.hidelines.get(&capture[1]).map(|p| p.as_str()) code_config.hidelines.get(&capture[1]).map(|p| p.as_str())
}) })
} }