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
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@ -935,8 +935,9 @@ fn add_playground_pre(
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/// Modifies all `<code>` blocks to convert "hidden" lines and to wrap them in
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/// a `<span class="boring">`.
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fn hide_lines(html: &str, code_config: &Code) -> String {
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let language_regex = Regex::new(r"\blanguage-(\w+)\b").unwrap();
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let hidelines_regex = Regex::new(r"\bhidelines=(\S+)").unwrap();
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static LANGUAGE_REGEX: Lazy<Regex> = Lazy::new(|| Regex::new(r"\blanguage-(\w+)\b").unwrap());
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static HIDELINES_REGEX: Lazy<Regex> = Lazy::new(|| Regex::new(r"\bhidelines=(\S+)").unwrap());
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CODE_BLOCK_RE
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.replace_all(html, |caps: &Captures<'_>| {
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let text = &caps[1];
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@ -951,12 +952,12 @@ fn hide_lines(html: &str, code_config: &Code) -> String {
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)
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} else {
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// First try to get the prefix from the code block
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let hidelines_capture = hidelines_regex.captures(classes);
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let hidelines_capture = HIDELINES_REGEX.captures(classes);
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let hidelines_prefix = match &hidelines_capture {
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Some(capture) => Some(&capture[1]),
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None => {
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// Then look up the prefix by language
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language_regex.captures(classes).and_then(|capture| {
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LANGUAGE_REGEX.captures(classes).and_then(|capture| {
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code_config.hidelines.get(&capture[1]).map(|p| p.as_str())
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})
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}
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