digital-garbageandClaude Sonnet 5.5
6511e69d7d
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
41 lines
2.0 KiB
JavaScript
41 lines
2.0 KiB
JavaScript
// Which shortcut triggers fit the word under the caret. Pure.
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const DELIMS = /[,\n;()[\]]/; // a trigger lives between delimiters; brackets wrap one: (trigger:1.5), [trigger@1-3]
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const MIN_QUERY = 2;
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/** Triggers containing `query` (prefix matches first), one row per distinct trigger. `library`: the shortcuts. */
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export function matchTriggers(library, query) {
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const q = query.toLowerCase(), seen = new Set(), scored = [];
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for (const sc of library) {
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if (sc.enabled === false) continue;
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for (const raw of sc.triggers || []) {
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const trigger = String(raw || "").trim(), at = trigger.toLowerCase().indexOf(q);
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if (trigger && at >= 0) scored.push({ trigger, sc, rank: at === 0 ? 0 : 1, at });
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}
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}
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scored.sort((a, b) => a.rank - b.rank || a.at - b.at || a.trigger.length - b.trigger.length);
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return scored.filter((e) => !seen.has(e.trigger.toLowerCase()) && seen.add(e.trigger.toLowerCase()));
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}
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/** What to offer under the caret: the longest trailing run of words in the current token that matches any trigger.
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* -> { span: {start, end}, items } or null. */
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export function suggestionsAt(library, text, caret) {
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const head = text.slice(0, caret);
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let from = caret;
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while (from > 0 && !DELIMS.test(head[from - 1])) from -= 1;
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const starts = [];
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for (let i = from, space = true; i < caret; i += 1) { const ws = /\s/.test(head[i]); if (!ws && space) starts.push(i); space = ws; }
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for (const start of starts) {
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const run = head.slice(start, caret);
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if (run.trim().length < MIN_QUERY) continue;
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const items = matchTriggers(library, run);
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if (items.length) return { span: { start, end: caret }, items };
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}
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return null;
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}
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/** `text` with the span replaced by the trigger and a space after it (none when a separator already follows). -> { text, caret } */
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export function accept(text, span, trigger) {
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const after = text.slice(span.end), sep = /^(\s|[,;)\]:@])/.test(after) ? "" : " ";
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return { text: text.slice(0, span.start) + trigger + sep + after, caret: span.start + trigger.length + sep.length };
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}
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