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* Collect Spec-Up-T [[def:]] / [[tref:]] glossary entries and emit RFC 9940-style RFCXML <dl>.
*/
const { el, escapeXml } = require('./xml-builder');
const { termToAnchor, displayTermLabel, slugifyTerm } = require('./term-anchor');
const { renderParagraphsFromMarkdown } = require('./inline');
const DEF_LINE_RE = /^\[\[(def|tref):\s*([^\]]+)\]\]\s*$/i;
function parseArgs(raw) {
return String(raw)
.split(/\s*,\s*/)
.map(part => part.trim())
.filter(Boolean);
}
function lookupTrefDefinition(xtrefs, externalSpec, term) {
if (!xtrefs) {
return '';
}
const list = Array.isArray(xtrefs) ? xtrefs : xtrefs.xtrefs;
Iif (!Array.isArray(list)) {
return '';
}
const key = slugifyTerm(term);
const found = list.find(entry =>
entry.externalSpec === externalSpec &&
slugifyTerm(entry.term) === key
);
Iif (!found || !found.content) {
return '';
}
return String(found.content)
.replace(/<[^>]+>/g, ' ')
.replace(/\s+/g, ' ')
.trim();
}
function collectTermsFromMarkdown(markdown, options = {}) {
const lines = String(markdown || '').split('\n');
const terms = [];
for (let i = 0; i < lines.length; i++) {
const match = lines[i].match(DEF_LINE_RE);
if (!match) {
continue;
}
const type = match[1].toLowerCase();
const args = parseArgs(match[2]);
let term;
let aliases;
let externalSpec;
if (type === 'tref') {
externalSpec = args[0];
term = args[1];
aliases = args.slice(2);
} else {
term = args[0];
aliases = args.slice(1);
}
Iif (!term) {
continue;
}
const defLines = [];
let j = i + 1;
while (j < lines.length && lines[j].trim() === '') {
j++;
}
while (j < lines.length) {
const line = lines[j];
if (DEF_LINE_RE.test(line) || /^#{1,6}\s/.test(line)) {
break;
}
if (line.startsWith('~ ')) {
defLines.push(line.slice(2));
} else if (line.trim() === '') {
Eif (defLines.length) {
defLines.push('');
}
} else E{
break;
}
j++;
}
let definitionMarkdown = defLines.join('\n').trim();
if (!definitionMarkdown && type === 'tref') {
definitionMarkdown = lookupTrefDefinition(options.xtrefs, externalSpec, term);
}
const aliasesLower = aliases.map(alias => alias.toLowerCase());
terms.push({
type,
term,
aliases,
externalSpec,
definitionMarkdown,
anchor: termToAnchor(term),
aliasAnchors: aliases.map(alias => termToAnchor(alias)),
keys: [term.toLowerCase(), ...aliasesLower]
});
}
return terms;
}
function buildTermAnchorMap(terms) {
const map = new Map();
for (const term of terms) {
for (const key of term.keys) {
map.set(key, term.anchor);
}
}
return map;
}
function sortTerms(terms) {
return [...terms].sort((a, b) =>
displayTermLabel(a.term, a.aliases).localeCompare(displayTermLabel(b.term, b.aliases), undefined, { sensitivity: 'base' })
);
}
function renderTerminologyDl(terms, md, ctx) {
if (!terms.length) {
return '';
}
const items = sortTerms(terms).map(term => {
const label = displayTermLabel(term.term, term.aliases);
const dt = el('dt', { anchor: term.anchor }, escapeXml(label));
const paragraphs = renderParagraphsFromMarkdown(md, term.definitionMarkdown, ctx);
let ddInner = paragraphs.length ? paragraphs.join('\n') : '<t>No definition provided.</t>';
if (term.type === 'tref' && term.externalSpec && ctx.externalSpecAnchors?.has(term.externalSpec)) {
const cite = `<t>Source: <xref target="${ctx.externalSpecAnchors.get(term.externalSpec)}"/>.</t>`;
Iif (!term.definitionMarkdown) {
ddInner = cite;
} else {
ddInner = `${ddInner}\n${cite}`;
}
}
const dd = el('dd', ddInner);
return `${dt}\n${dd}`;
});
return el('dl', { newline: 'true', spacing: 'normal' }, items);
}
function isTermDefinitionLine(line) {
return DEF_LINE_RE.test(String(line || '').trim());
}
module.exports = {
DEF_LINE_RE,
parseArgs,
lookupTrefDefinition,
collectTermsFromMarkdown,
buildTermAnchorMap,
sortTerms,
renderTerminologyDl,
isTermDefinitionLine
};
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