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perf: skip PreprocessLinkSubstitutions when no {{ }} present #3837

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Merged
Mpdreamz merged 1 commit into from
Aug 13, 2026
Merged

perf: skip PreprocessLinkSubstitutions when no {{ }} present #3837

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5 changes: 5 additions & 0 deletions src/Elastic.Markdown/Myst/MarkdownParser.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -220,6 +220,11 @@ public static MarkdownPipeline Pipeline
/// </summary>
private static string PreprocessLinkSubstitutions(string markdown, ParserContext context)
{
// The callback only rewrites links whose URL contains {{ }}. If the document
// has no {{ at all, both GetCodeBlockRanges and the Regex.Replace are pure overhead.
if (!markdown.Contains("{{", StringComparison.Ordinal))
return markdown;

// Find all code block boundaries to avoid processing links inside subs=false blocks
var codeBlockRanges = GetCodeBlockRanges(markdown);

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