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Merge pull request #33146 from overleaf/copilot/fix-code-folding-bug

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Fix code folding when a comment or blank line precedes an indented sectioning command

GitOrigin-RevId: 2a955311c1ce073b2eb80fdfbf45d00705e22d69
This commit is contained in:
Malik Glossop
2026-05-05 08:05:57 +00:00
committed by Copybot
parent 47473bc5f4
commit e2de08ca86
2 changed files with 144 additions and 0 deletions
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services/web/frontend/js/features/source-editor/languages/latex/latex-language.ts
+14
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@@ -111,6 +111,20 @@ export const LaTeXLanguage = LRLanguage.define({
if (sibling?.type.is(termsModule.NewLine)) {
return { from: content!.from, to: sibling.from }
}
if (sibling?.type.is(termsModule.Comment)) {
// A trailing comment line (e.g. `%`) before an indented
// sectioning command should be included in the fold, but the
// sectioning command itself should still appear on its own
// line. The Comment node consumes its trailing newline, so
// end the fold one position before the Comment ends.
return { from: content!.from, to: sibling.to - 1 }
}
if (sibling?.type.is(termsModule.BlankLine)) {
// Blank line(s) between previous content and an indented
// sectioning command: include all but the last newline in the
// fold (mirroring the BlankLine handling below).
return { from: content!.from, to: sibling.to - 1 }
}
}
if (lastChild.type.is(termsModule.BlankLine)) {
// HACK: BlankLine can contain any number above 2 of \n's.