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⚡ Optimize search by caching lowercased lines

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Co-authored-by: Horizontal42 <75383519+Horizontal42@users.noreply.github.com>
This commit is contained in:
google-labs-jules[bot] 2026-09-10 08:49:21 +00:00
parent 37cfd2144b
commit 577d7a3516
1 changed files with 16 additions and 4 deletions
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20
src/ui/search.ts
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@ -33,6 +33,18 @@ export interface SearchController {
const $ = <T extends HTMLElement>(sel: string): T =>
document.querySelector(sel) as T;
const lineCache = new Map<string, { text: string; lines: string[]; lowerLines: string[] }>();
function getCachedDocLines(id: string, text: string): { lines: string[]; lowerLines: string[] } {
let cached = lineCache.get(id);
if (cached && cached.text === text) return cached;
const lines = text.split("\n");
const lowerLines = text.toLowerCase().split("\n");
cached = { text, lines, lowerLines };
lineCache.set(id, cached);
return cached;
}
export function parseResultQuery(
engine: SumEngine,
q: string,
@ -81,7 +93,7 @@ export function searchAllSheets(deps: SearchDeps, query: string): SearchHit[] {
break;
}
if (match) {
if (!lines) lines = doc.text.split("\n");
if (!lines) lines = getCachedDocLines(doc.id, doc.text).lines;
hits.push({
docId: doc.id,
docTitle: doc.title,
@ -98,9 +110,9 @@ export function searchAllSheets(deps: SearchDeps, query: string): SearchHit[] {
const ql = q.toLowerCase();
const hits: SearchHit[] = [];
for (const doc of docs) {
const lines = doc.text.split("\n");
for (let i = 0; i < lines.length; i++) {
if (lines[i].toLowerCase().includes(ql)) {
const { lines, lowerLines } = getCachedDocLines(doc.id, doc.text);
for (let i = 0; i < lowerLines.length; i++) {
if (lowerLines[i].includes(ql)) {
hits.push({
docId: doc.id,
docTitle: doc.title,