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Share one fuzzy matcher across both dialogs

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Plugins dialog and the Speed Dial popup each
carried a private copy of the same fuzzy
matcher and had already drifted. Move the
pure functions into a shared module loaded
by both pages, and add a unit test beside
it.
This commit is contained in:
Andrew
2026-07-10 17:32:31 +08:00
parent df5c293d2e
commit 7b19145226
6 changed files with 106 additions and 80 deletions
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1
resources/web/dialog/PluginsDialog/index.html
View File

@@ -17,6 +17,7 @@
<script type="text/javascript" src="../js/common.js"></script>
<script src="./index.js"></script>
<script src="./plugin-sort.js"></script>
<script src="../js/fuzzy-search.js"></script>
<script src="./plugin-search.js"></script>
</head>
<body onLoad="OnInit()">

56
resources/web/dialog/PluginsDialog/plugin-search.js
View File

@@ -4,60 +4,14 @@ function PluginSearchActive() {
return pluginSearch.query.length > 0;
}
// --- matcher: fold per-character on the fly so matched offsets stay in ORIGINAL coordinates ---
// why: highlighting marks slices of the original string; a separate folded string would desync offsets.
function FoldChar(ch) {
return ch.normalize("NFD").replace(/\p{Diacritic}/gu, ""); // accents always folded (both Cc states)
}
function Norm(ch, caseSensitive) {
const folded = FoldChar(ch);
return caseSensitive ? folded : folded.toLowerCase(); // Cc controls case only
}
function EscapeRegExp(value) {
return value.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
}
// why: matcher (FoldChar/Norm/FuzzyRanges/WholeWordRanges) lives in shared ../js/fuzzy-search.js,
// loaded before this script - it is shared with the Speed Dial popup. Cc = pluginSearch.caseSensitive.
function MatchText(text, query) {
if (!query)
return [];
return pluginSearch.wholeWord ? WholeWordRanges(text, query) : FuzzyRanges(text, query);
}
// Fuzzy: ordered subsequence. Builds ranges in original coordinates, merging adjacent runs on the fly.
function FuzzyRanges(text, query) {
const caseSensitive = pluginSearch.caseSensitive;
const needle = Array.from(query).map((ch) => Norm(ch, caseSensitive)).join("");
const ranges = [];
let qi = 0;
for (let i = 0; i < text.length && qi < needle.length; i++) {
if (Norm(text[i], caseSensitive) === needle[qi]) {
const last = ranges[ranges.length - 1];
if (last && last[1] === i)
last[1] = i + 1;
else
ranges.push([i, i + 1]);
qi++;
}
}
return qi === needle.length ? ranges : null;
}
// Whole word: literal \b-bounded match that bypasses fuzzy; Cc still applies. The per-char fold keeps the
// haystack length-aligned to the original text, so regex indices map straight back to original offsets.
// note: one-to-many folds (ligatures, eszett) shift offsets by a char; rare in plugin names, cosmetic only.
function WholeWordRanges(text, query) {
const caseSensitive = pluginSearch.caseSensitive;
const haystack = Array.from(text).map((ch) => Norm(ch, caseSensitive)).join("");
const needle = Array.from(query).map((ch) => Norm(ch, caseSensitive)).join("");
if (!needle)
return null;
const re = new RegExp(`\\b${EscapeRegExp(needle)}\\b`, "g");
const ranges = [];
let match;
// why: needle is non-empty, so \b-bounded matches are never zero-length - no empty-match guard needed.
while ((match = re.exec(haystack)) !== null)
ranges.push([match.index, match.index + match[0].length]);
return ranges.length > 0 ? ranges : null;
return pluginSearch.wholeWord
? WholeWordRanges(text, query, pluginSearch.caseSensitive)
: FuzzyRanges(text, query, pluginSearch.caseSensitive);
}
// Per-plugin evaluator consumed by RenderPlugins. The name text mirrors LabelCell's pluginLabelText so