Your NameandClaude Sonnet 5.5
313c41f867
Vault on plain .md files with FTS5 index, link rewriting, canvas files, history/trash/backup, link previews, image fetch, tasks and unlinked mentions, Notion/Obsidian importer, quick-capture window and shortcut. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
69 lines
2.3 KiB
JavaScript
69 lines
2.3 KiB
JavaScript
'use strict';
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// Minimal YAML front matter: flat `key: value`, inline `[a, b]` lists and `- item` lists.
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// Unknown keys are kept and written back, so notes from Obsidian survive a round trip.
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const FM = /^?---\r?\n([\s\S]*?)\r?\n---[ \t]*(?:\r?\n|$)/;
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function unquote(v) {
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v = v.trim();
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if (v.length >= 2 && v.startsWith('"') && v.endsWith('"')) {
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try { return JSON.parse(v); } catch { return v.slice(1, -1); }
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}
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if (v.length >= 2 && v.startsWith("'") && v.endsWith("'")) return v.slice(1, -1).replace(/''/g, "'");
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return v;
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}
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function parseFrontMatter(raw) {
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const m = raw.match(FM);
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if (!m) return { meta: {}, body: raw };
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const meta = {};
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let last = null;
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for (const line of m[1].split(/\r?\n/)) {
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const kv = line.match(/^([A-Za-z0-9_-]+):\s*(.*)$/);
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if (kv) {
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last = kv[1];
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const v = kv[2].trim();
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if (v.startsWith('[') && v.endsWith(']')) {
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meta[last] = v.slice(1, -1).split(',').map(unquote).filter(Boolean);
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} else {
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meta[last] = v === '' ? [] : unquote(v);
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}
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continue;
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}
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const item = line.match(/^\s*-\s+(.*)$/);
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if (item && last) {
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if (!Array.isArray(meta[last])) meta[last] = [];
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meta[last].push(unquote(item[1]));
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}
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}
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// An empty `key:` with no list items below it is just an empty string.
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for (const k of Object.keys(meta)) if (Array.isArray(meta[k]) && !meta[k].length && k !== 'tags') meta[k] = '';
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return { meta, body: raw.slice(m[0].length).replace(/^\r?\n/, '') };
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}
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function quote(s) {
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s = String(s);
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return /^[\p{L}\p{N}_ .\/@#+-]+$/u.test(s) && s.trim() === s && !/^[-#@]/.test(s) ? s : JSON.stringify(s);
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}
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const ORDER = ['icon', 'cover', 'tags', 'created'];
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function serializeFrontMatter(meta = {}) {
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const keys = Object.keys(meta).filter((k) => {
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const v = meta[k];
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return v !== undefined && v !== null && v !== '' && !(Array.isArray(v) && !v.length);
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});
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if (!keys.length) return '';
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keys.sort((a, b) => {
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const ia = ORDER.indexOf(a), ib = ORDER.indexOf(b);
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return (ia < 0 ? 99 : ia) - (ib < 0 ? 99 : ib);
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});
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const lines = keys.map((k) => {
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const v = meta[k];
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return Array.isArray(v) ? `${k}: [${v.map(quote).join(', ')}]` : `${k}: ${quote(v)}`;
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});
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return `---\n${lines.join('\n')}\n---\n\n`;
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}
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module.exports = { parseFrontMatter, serializeFrontMatter };
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