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perf: optimize referencedTitles text matching in workspace

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Replaces regex matchAll with manual indexOf scanning for parsing references, significantly improving text scanning performance. Uses sticky regex fallback for bare identifiers.

Co-authored-by: Horizontal42 <75383519+Horizontal42@users.noreply.github.com>
This commit is contained in:
google-labs-jules[bot] 2026-08-26 14:04:26 +00:00
parent 37cfd2144b
commit d8d2903670
1 changed files with 23 additions and 1 deletions
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24
src/workspace.ts
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@ -19,6 +19,7 @@ interface SheetExports {
} }
const XREF_SCAN_RE = /@(?:\[([^\]]+)\]|([\p{L}_][\p{L}\d_]*))\./gu; const XREF_SCAN_RE = /@(?:\[([^\]]+)\]|([\p{L}_][\p{L}\d_]*))\./gu;
const XREF_BARE_RE_STICKY = /@([\p{L}_][\p{L}\d_]*)\./guy;
function escapeRegExp(s: string): string { function escapeRegExp(s: string): string {
return s.replace(/[.*+?^${}()|[\]\\]/g, "\\$&"); return s.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
@ -104,7 +105,28 @@ export class Workspace {
if (cached && cached.text === text) return cached.refs; if (cached && cached.text === text) return cached.refs;
} }
const out: string[] = []; const out: string[] = [];
for (const m of text.matchAll(XREF_SCAN_RE)) out.push((m[1] ?? m[2]).trim()); let i = 0;
while ((i = text.indexOf("@", i)) !== -1) {
if (i + 1 >= text.length) break;
if (text[i + 1] === "[") {
const endBracket = text.indexOf("]", i + 2);
if (endBracket !== -1 && endBracket + 1 < text.length && text[endBracket + 1] === ".") {
out.push(text.substring(i + 2, endBracket).trim());
i = endBracket + 2;
continue;
}
} else {
XREF_BARE_RE_STICKY.lastIndex = i;
const m = XREF_BARE_RE_STICKY.exec(text);
if (m !== null) {
out.push(m[1]); // no trim needed for bare identifier regex match
i = XREF_BARE_RE_STICKY.lastIndex;
continue;
}
}
i++;
}
if (id) { if (id) {
this.parsedRefsCache.set(id, { text, refs: out }); this.parsedRefsCache.set(id, { text, refs: out });
} }