32 lines
1.1 KiB
JavaScript
32 lines
1.1 KiB
JavaScript
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const PCEN_CHAR = '[-_.]|[0-9]|[a-z]|\u{B7}|[\u{C0}-\u{D6}]|[\u{D8}-\u{F6}]' +
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'|[\u{F8}-\u{37D}]|[\u{37F}-\u{1FFF}]' +
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'|[\u{200C}-\u{200D}]|[\u{203F}-\u{2040}]|[\u{2070}-\u{218F}]' +
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'|[\u{2C00}-\u{2FEF}]|[\u{3001}-\u{D7FF}]' +
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'|[\u{F900}-\u{FDCF}]|[\u{FDF0}-\u{FFFD}]|[\u{10000}-\u{EFFFF}]';
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const PCEN_REGEXP = new RegExp(`^[a-z](${PCEN_CHAR})*-(${PCEN_CHAR})*$`, 'u');
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const RESERVED_NAMES = [
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'annotation-xml',
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'color-profile',
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'font-face',
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'font-face-src',
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'font-face-uri',
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'font-face-format',
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'font-face-name',
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'missing-glyph'
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];
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/**
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* Custom element utility.
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*/
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export default class CustomElementUtility {
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/**
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* Returns true if the tag name is a valid custom element name.
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*
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* @see https://html.spec.whatwg.org/multipage/custom-elements.html#valid-custom-element-name
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* @param name Tag name.
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* @returns True if valid.
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*/
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static isValidCustomElementName(name) {
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return PCEN_REGEXP.test(name) && !RESERVED_NAMES.includes(name);
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}
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}
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//# sourceMappingURL=CustomElementUtility.js.map
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