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Extract attributes for HTML elements #1515

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Extract attributes for HTML elements #1515

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21 changes: 20 additions & 1 deletion src/browserlib/extract-elements.mjs
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Original file line number Diff line number Diff line change
Expand Up @@ -60,7 +60,7 @@ export default function (spec) {
// 'Contexts in which this element can be used': 'contexts',
// 'Content model': 'contents',
// 'Tag omission in text/html': 'omission',
// 'Content attributes': 'attributes',
'Content attributes': 'attributes',
// 'Accessibility considerations': 'accessibility',
'DOM interface': 'interface'
})[getText(dt).replace(/:$/, '')];
Expand Down Expand Up @@ -120,6 +120,25 @@ export default function (spec) {
else {
throw new Error('Could not link element to interface, missing dd for ' + res.name);
}
} else if (prop === "attributes") {
res[prop] = [];
let dd = dt.nextElementSibling;
while (dd && dd.nodeName !== "DT") {
if (dd.nodeName === "DD") {
// To count as an attribute, we look for:
// - the first child is a CODE element,
// - and its first child is an A element
// - and its href contains a fragment starting with "attr"
if (
dd.firstChild?.nodeName === "CODE" &&
dd.firstChild?.firstChild?.nodeName === "A" &&
new URL(dd.firstChild?.firstChild).hash.startsWith("#attr")
) {
res[prop].push(getText(dd.firstChild?.firstChild));
}
}
dd = dd.nextElementSibling;
}
}
else if (prop) {
res[prop] = [];
Expand Down