609 lines
11 KiB
JavaScript
609 lines
11 KiB
JavaScript
const MODES = (hljs) => {
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return {
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IMPORTANT: {
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className: 'meta',
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begin: '!important'
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},
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HEXCOLOR: {
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className: 'number',
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begin: '#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})'
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},
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ATTRIBUTE_SELECTOR_MODE: {
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className: 'selector-attr',
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begin: /\[/,
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end: /\]/,
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illegal: '$',
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contains: [
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hljs.APOS_STRING_MODE,
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hljs.QUOTE_STRING_MODE
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]
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}
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};
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};
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const TAGS = [
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'a',
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'abbr',
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'address',
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'article',
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'aside',
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'audio',
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'b',
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'blockquote',
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'body',
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'button',
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'canvas',
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'caption',
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'cite',
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'code',
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'dd',
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'del',
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'details',
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'dfn',
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'div',
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'dl',
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'dt',
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'em',
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'fieldset',
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'figcaption',
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'figure',
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'footer',
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'form',
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'h1',
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'h2',
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'h3',
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'h4',
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'h5',
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'h6',
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'header',
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'hgroup',
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'html',
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'i',
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'iframe',
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'img',
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'input',
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'ins',
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'kbd',
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'label',
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'legend',
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'li',
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'main',
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'mark',
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'menu',
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'nav',
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'object',
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'ol',
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'p',
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'q',
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'quote',
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'samp',
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'section',
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'span',
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'strong',
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'summary',
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'sup',
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'table',
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'tbody',
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'td',
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'textarea',
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'tfoot',
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'th',
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'thead',
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'time',
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'tr',
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'ul',
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'var',
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'video'
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];
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const MEDIA_FEATURES = [
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'any-hover',
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'any-pointer',
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'aspect-ratio',
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'color',
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'color-gamut',
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'color-index',
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'device-aspect-ratio',
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'device-height',
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'device-width',
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'display-mode',
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'forced-colors',
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'grid',
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'height',
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'hover',
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'inverted-colors',
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'monochrome',
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'orientation',
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'overflow-block',
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'overflow-inline',
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'pointer',
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'prefers-color-scheme',
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'prefers-contrast',
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'prefers-reduced-motion',
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'prefers-reduced-transparency',
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'resolution',
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'scan',
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'scripting',
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'update',
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'width',
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// TODO: find a better solution?
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'min-width',
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'max-width',
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'min-height',
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'max-height'
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];
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// https://developer.mozilla.org/en-US/docs/Web/CSS/Pseudo-classes
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const PSEUDO_CLASSES = [
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'active',
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'any-link',
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'blank',
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'checked',
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'current',
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'default',
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'defined',
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'dir', // dir()
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'disabled',
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'drop',
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'empty',
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'enabled',
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'first',
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'first-child',
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'first-of-type',
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'fullscreen',
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'future',
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'focus',
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'focus-visible',
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'focus-within',
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'has', // has()
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'host', // host or host()
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'host-context', // host-context()
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'hover',
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'indeterminate',
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'in-range',
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'invalid',
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'is', // is()
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'lang', // lang()
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'last-child',
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'last-of-type',
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'left',
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'link',
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'local-link',
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'not', // not()
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'nth-child', // nth-child()
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'nth-col', // nth-col()
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'nth-last-child', // nth-last-child()
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'nth-last-col', // nth-last-col()
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'nth-last-of-type', //nth-last-of-type()
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'nth-of-type', //nth-of-type()
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'only-child',
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'only-of-type',
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'optional',
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'out-of-range',
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'past',
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'placeholder-shown',
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'read-only',
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'read-write',
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'required',
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'right',
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'root',
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'scope',
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'target',
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'target-within',
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'user-invalid',
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'valid',
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'visited',
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'where' // where()
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];
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// https://developer.mozilla.org/en-US/docs/Web/CSS/Pseudo-elements
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const PSEUDO_ELEMENTS = [
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'after',
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'backdrop',
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'before',
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'cue',
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'cue-region',
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'first-letter',
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'first-line',
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'grammar-error',
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'marker',
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'part',
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'placeholder',
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'selection',
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'slotted',
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'spelling-error'
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];
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const ATTRIBUTES = [
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'align-content',
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'align-items',
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'align-self',
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'animation',
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'animation-delay',
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'animation-direction',
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'animation-duration',
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'animation-fill-mode',
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'animation-iteration-count',
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'animation-name',
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'animation-play-state',
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'animation-timing-function',
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'auto',
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'backface-visibility',
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'background',
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'background-attachment',
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'background-clip',
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'background-color',
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'background-image',
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'background-origin',
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'background-position',
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'background-repeat',
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'background-size',
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'border',
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'border-bottom',
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'border-bottom-color',
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'border-bottom-left-radius',
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'border-bottom-right-radius',
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'border-bottom-style',
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'border-bottom-width',
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'border-collapse',
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'border-color',
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'border-image',
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'border-image-outset',
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'border-image-repeat',
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'border-image-slice',
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'border-image-source',
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'border-image-width',
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'border-left',
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'border-left-color',
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'border-left-style',
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'border-left-width',
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'border-radius',
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'border-right',
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'border-right-color',
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'border-right-style',
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'border-right-width',
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'border-spacing',
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'border-style',
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'border-top',
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'border-top-color',
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'border-top-left-radius',
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'border-top-right-radius',
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'border-top-style',
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'border-top-width',
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'border-width',
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'bottom',
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'box-decoration-break',
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'box-shadow',
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'box-sizing',
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'break-after',
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'break-before',
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'break-inside',
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'caption-side',
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'clear',
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'clip',
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'clip-path',
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'color',
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'column-count',
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'column-fill',
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'column-gap',
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'column-rule',
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'column-rule-color',
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'column-rule-style',
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'column-rule-width',
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'column-span',
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'column-width',
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'columns',
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'content',
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'counter-increment',
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'counter-reset',
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'cursor',
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'direction',
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'display',
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'empty-cells',
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'filter',
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'flex',
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'flex-basis',
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'flex-direction',
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'flex-flow',
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'flex-grow',
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'flex-shrink',
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'flex-wrap',
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'float',
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'font',
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'font-display',
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'font-family',
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'font-feature-settings',
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'font-kerning',
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'font-language-override',
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'font-size',
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'font-size-adjust',
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'font-smoothing',
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'font-stretch',
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'font-style',
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'font-variant',
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'font-variant-ligatures',
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'font-variation-settings',
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'font-weight',
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'height',
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'hyphens',
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'icon',
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'image-orientation',
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'image-rendering',
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'image-resolution',
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'ime-mode',
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'inherit',
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'initial',
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'justify-content',
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'left',
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'letter-spacing',
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'line-height',
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'list-style',
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'list-style-image',
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'list-style-position',
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'list-style-type',
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'margin',
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'margin-bottom',
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'margin-left',
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'margin-right',
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'margin-top',
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'marks',
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'mask',
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'max-height',
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'max-width',
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'min-height',
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'min-width',
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'nav-down',
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'nav-index',
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'nav-left',
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'nav-right',
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'nav-up',
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'none',
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'normal',
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'object-fit',
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'object-position',
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'opacity',
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'order',
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'orphans',
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'outline',
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'outline-color',
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'outline-offset',
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'outline-style',
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'outline-width',
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'overflow',
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'overflow-wrap',
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'overflow-x',
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'overflow-y',
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'padding',
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'padding-bottom',
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'padding-left',
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'padding-right',
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'padding-top',
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'page-break-after',
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'page-break-before',
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'page-break-inside',
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'perspective',
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'perspective-origin',
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'pointer-events',
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'position',
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'quotes',
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'resize',
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'right',
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'src', // @font-face
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'tab-size',
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'table-layout',
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'text-align',
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'text-align-last',
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'text-decoration',
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'text-decoration-color',
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'text-decoration-line',
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'text-decoration-style',
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'text-indent',
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'text-overflow',
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'text-rendering',
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'text-shadow',
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'text-transform',
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'text-underline-position',
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'top',
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'transform',
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'transform-origin',
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'transform-style',
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'transition',
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'transition-delay',
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'transition-duration',
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'transition-property',
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'transition-timing-function',
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'unicode-bidi',
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'vertical-align',
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'visibility',
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'white-space',
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'widows',
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'width',
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'word-break',
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'word-spacing',
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'word-wrap',
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'z-index'
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// reverse makes sure longer attributes `font-weight` are matched fully
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// instead of getting false positives on say `font`
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].reverse();
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/**
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* @param {string} value
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* @returns {RegExp}
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* */
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/**
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* @param {RegExp | string } re
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* @returns {string}
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*/
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function source(re) {
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if (!re) return null;
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if (typeof re === "string") return re;
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return re.source;
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}
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/**
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* @param {RegExp | string } re
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* @returns {string}
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*/
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function lookahead(re) {
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return concat('(?=', re, ')');
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}
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/**
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* @param {...(RegExp | string) } args
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* @returns {string}
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*/
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function concat(...args) {
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const joined = args.map((x) => source(x)).join("");
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return joined;
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}
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/*
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Language: CSS
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Category: common, css
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Website: https://developer.mozilla.org/en-US/docs/Web/CSS
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*/
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/** @type LanguageFn */
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function css(hljs) {
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const modes = MODES(hljs);
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const FUNCTION_DISPATCH = {
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className: "built_in",
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begin: /[\w-]+(?=\()/
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};
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const VENDOR_PREFIX = {
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begin: /-(webkit|moz|ms|o)-(?=[a-z])/
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};
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const AT_MODIFIERS = "and or not only";
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const AT_PROPERTY_RE = /@-?\w[\w]*(-\w+)*/; // @-webkit-keyframes
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const IDENT_RE = '[a-zA-Z-][a-zA-Z0-9_-]*';
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const STRINGS = [
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hljs.APOS_STRING_MODE,
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hljs.QUOTE_STRING_MODE
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];
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return {
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name: 'CSS',
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case_insensitive: true,
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illegal: /[=|'\$]/,
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keywords: {
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keyframePosition: "from to"
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},
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classNameAliases: {
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// for visual continuity with `tag {}` and because we
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// don't have a great class for this?
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keyframePosition: "selector-tag"
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},
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contains: [
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hljs.C_BLOCK_COMMENT_MODE,
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VENDOR_PREFIX,
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// to recognize keyframe 40% etc which are outside the scope of our
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// attribute value mode
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hljs.CSS_NUMBER_MODE,
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{
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className: 'selector-id',
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begin: /#[A-Za-z0-9_-]+/,
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relevance: 0
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},
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{
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className: 'selector-class',
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begin: '\\.' + IDENT_RE,
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relevance: 0
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},
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modes.ATTRIBUTE_SELECTOR_MODE,
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{
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className: 'selector-pseudo',
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variants: [
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{
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begin: ':(' + PSEUDO_CLASSES.join('|') + ')'
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},
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{
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begin: '::(' + PSEUDO_ELEMENTS.join('|') + ')'
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}
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]
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},
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// we may actually need this (12/2020)
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// { // pseudo-selector params
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// begin: /\(/,
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// end: /\)/,
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// contains: [ hljs.CSS_NUMBER_MODE ]
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// },
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{
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className: 'attribute',
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begin: '\\b(' + ATTRIBUTES.join('|') + ')\\b'
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},
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// attribute values
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{
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begin: ':',
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end: '[;}]',
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contains: [
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modes.HEXCOLOR,
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modes.IMPORTANT,
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hljs.CSS_NUMBER_MODE,
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...STRINGS,
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// needed to highlight these as strings and to avoid issues with
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// illegal characters that might be inside urls that would tigger the
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// languages illegal stack
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{
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begin: /(url|data-uri)\(/,
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end: /\)/,
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relevance: 0, // from keywords
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keywords: {
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built_in: "url data-uri"
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},
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contains: [
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{
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className: "string",
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// any character other than `)` as in `url()` will be the start
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// of a string, which ends with `)` (from the parent mode)
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begin: /[^)]/,
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endsWithParent: true,
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excludeEnd: true
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}
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]
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},
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FUNCTION_DISPATCH
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]
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},
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{
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begin: lookahead(/@/),
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end: '[{;]',
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relevance: 0,
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illegal: /:/, // break on Less variables @var: ...
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contains: [
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{
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className: 'keyword',
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begin: AT_PROPERTY_RE
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},
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{
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begin: /\s/,
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endsWithParent: true,
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excludeEnd: true,
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relevance: 0,
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keywords: {
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$pattern: /[a-z-]+/,
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keyword: AT_MODIFIERS,
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attribute: MEDIA_FEATURES.join(" ")
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},
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contains: [
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{
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begin: /[a-z-]+(?=:)/,
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className: "attribute"
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},
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...STRINGS,
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hljs.CSS_NUMBER_MODE
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]
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}
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]
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},
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{
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className: 'selector-tag',
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begin: '\\b(' + TAGS.join('|') + ')\\b'
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}
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]
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};
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}
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module.exports = css;
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