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frontmatter: find a block list past blank and comment lines #125

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frontmatter: find a block list past blank and comment lines #125

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6 changes: 5 additions & 1 deletion site/lib/frontmatter.mjs
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Original file line number Diff line number Diff line change
Expand Up @@ -85,7 +85,11 @@ export function parseFrontmatter(text) {
return;
}
const value = parseScalar(line.slice(idx + 1));
const next = lines[i + 1];
let nextIndex = i + 1;
while (nextIndex < lines.length && (!lines[nextIndex].trim() || lines[nextIndex].trim().startsWith("#"))) {
nextIndex += 1;
}
const next = lines[nextIndex];
if (value === null && next !== undefined && /^\s+-\s/.test(next)) {
meta[key] = [];
listKey = key;
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3 changes: 3 additions & 0 deletions site/lib/lib.test.mjs
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Original file line number Diff line number Diff line change
Expand Up @@ -485,6 +485,9 @@ const f1 = fm([
eq("frontmatter undoes quote escapes", f1.meta.attribution_string, 'Music "{title}" by {artist}');
eq("frontmatter keeps a quoted comma inside one list item", JSON.stringify(f1.meta.tags), JSON.stringify(["sci-fi, space", "ui", "it's"]));
eq("frontmatter reads a block list", JSON.stringify(f1.meta.formats), JSON.stringify(["PNG", "SVG"]));
const fComment = fm(["tags:", " # content words only", " - low-poly"]);
eq("frontmatter reads a block list after a comment", JSON.stringify(fComment.meta.tags), JSON.stringify(["low-poly"]));
eq("frontmatter has no errors for a list after a comment", fComment.errors.length, 0);
eq("frontmatter reads booleans", f1.meta.commercial, true);
eq("frontmatter has no errors on good input", f1.errors.length, 0);
eq("frontmatter ignores a byte-order mark", parseFrontmatter("---\nid: a\n---\nB")?.meta.id, "a");
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