ecmarkup
Version:
Custom element definitions and core utilities for markup that specifies ECMAScript and related technologies.
96 lines (95 loc) • 2.46 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.collectTagDiagnostics = collectTagDiagnostics;
const knownEmuTags = new Set([
'emu-meta',
'emu-import',
'emu-example',
'emu-intro',
'emu-clause',
'emu-annex',
'emu-biblio',
'emu-xref',
'emu-prodref',
'emu-not-ref',
'emu-note',
'emu-eqn',
'emu-table',
'emu-figure',
'emu-caption',
'emu-grammar',
'emu-alg',
'emu-var',
'emu-val',
'emu-production',
'emu-rhs',
'emu-nt',
'emu-t',
'emu-gann',
'emu-gprose',
'emu-gmod',
'emu-normative-optional', // used in ecma-402
]);
// https://html.spec.whatwg.org/multipage/syntax.html#void-elements
const voidElements = new Set([
'area',
'base',
'br',
'col',
'embed',
'hr',
'img',
'input',
'link',
'meta',
'param',
'source',
'track',
'wbr',
]);
function collectTagDiagnostics(report, spec, document) {
const lintWalker = document.createTreeWalker(document.body, 1 /* elements */);
function visit() {
const node = lintWalker.currentNode;
const name = node.tagName.toLowerCase();
if (name.startsWith('emu-') && !knownEmuTags.has(name)) {
report({
type: 'node',
ruleId: 'valid-tags',
message: `unknown "emu-" tag "${name}"`,
node,
});
}
if (node.hasAttribute('oldid')) {
report({
type: 'attr',
attr: 'oldid',
ruleId: 'valid-tags',
message: `"oldid" isn't a thing; did you mean "oldids"?`,
node,
});
}
if (!voidElements.has(name)) {
const location = spec.locate(node);
if (location != null && location.endTag == null) {
report({
type: 'node',
ruleId: 'missing-closing-tag',
message: `element <${name}> is missing its closing tag`,
node,
});
}
}
const firstChild = lintWalker.firstChild();
if (firstChild) {
while (true) {
visit();
const next = lintWalker.nextSibling();
if (!next)
break;
}
lintWalker.parentNode();
}
}
visit();
}