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This file contains ambiguous Unicode characters!

This file contains ambiguous Unicode characters that may be confused with others in your current locale. If your use case is intentional and legitimate, you can safely ignore this warning. Use the Escape button to highlight these characters.

const MODES = (hljs) => {
return {
IMPORTANT: {
className: 'meta',
begin: '!important'
},
HEXCOLOR: {
className: 'number',
begin: '#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})'
},
ATTRIBUTE_SELECTOR_MODE: {
className: 'selector-attr',
begin: /\[/,
end: /\]/,
illegal: '$',
contains: [
hljs.APOS_STRING_MODE,
hljs.QUOTE_STRING_MODE
]
}
};
};
const TAGS = [
'a',
'abbr',
'address',
'article',
'aside',
'audio',
'b',
'blockquote',
'body',
'button',
'canvas',
'caption',
'cite',
'code',
'dd',
'del',
'details',
'dfn',
'div',
'dl',
'dt',
'em',
'fieldset',
'figcaption',
'figure',
'footer',
'form',
'h1',
'h2',
'h3',
'h4',
'h5',
'h6',
'header',
'hgroup',
'html',
'i',
'iframe',
'img',
'input',
'ins',
'kbd',
'label',
'legend',
'li',
'main',
'mark',
'menu',
'nav',
'object',
'ol',
'p',
'q',
'quote',
'samp',
'section',
'span',
'strong',
'summary',
'sup',
'table',
'tbody',
'td',
'textarea',
'tfoot',
'th',
'thead',
'time',
'tr',
'ul',
'var',
'video'
];
const MEDIA_FEATURES = [
'any-hover',
'any-pointer',
'aspect-ratio',
'color',
'color-gamut',
'color-index',
'device-aspect-ratio',
'device-height',
'device-width',
'display-mode',
'forced-colors',
'grid',
'height',
'hover',
'inverted-colors',
'monochrome',
'orientation',
'overflow-block',
'overflow-inline',
'pointer',
'prefers-color-scheme',
'prefers-contrast',
'prefers-reduced-motion',
'prefers-reduced-transparency',
'resolution',
'scan',
'scripting',
'update',
'width',
// TODO: find a better solution?
'min-width',
'max-width',
'min-height',
'max-height'
];
// https://developer.mozilla.org/en-US/docs/Web/CSS/Pseudo-classes
const PSEUDO_CLASSES = [
'active',
'any-link',
'blank',
'checked',
'current',
'default',
'defined',
'dir', // dir()
'disabled',
'drop',
'empty',
'enabled',
'first',
'first-child',
'first-of-type',
'fullscreen',
'future',
'focus',
'focus-visible',
'focus-within',
'has', // has()
'host', // host or host()
'host-context', // host-context()
'hover',
'indeterminate',
'in-range',
'invalid',
'is', // is()
'lang', // lang()
'last-child',
'last-of-type',
'left',
'link',
'local-link',
'not', // not()
'nth-child', // nth-child()
'nth-col', // nth-col()
'nth-last-child', // nth-last-child()
'nth-last-col', // nth-last-col()
'nth-last-of-type', //nth-last-of-type()
'nth-of-type', //nth-of-type()
'only-child',
'only-of-type',
'optional',
'out-of-range',
'past',
'placeholder-shown',
'read-only',
'read-write',
'required',
'right',
'root',
'scope',
'target',
'target-within',
'user-invalid',
'valid',
'visited',
'where' // where()
];
// https://developer.mozilla.org/en-US/docs/Web/CSS/Pseudo-elements
const PSEUDO_ELEMENTS = [
'after',
'backdrop',
'before',
'cue',
'cue-region',
'first-letter',
'first-line',
'grammar-error',
'marker',
'part',
'placeholder',
'selection',
'slotted',
'spelling-error'
];
const ATTRIBUTES = [
'align-content',
'align-items',
'align-self',
'animation',
'animation-delay',
'animation-direction',
'animation-duration',
'animation-fill-mode',
'animation-iteration-count',
'animation-name',
'animation-play-state',
'animation-timing-function',
'auto',
'backface-visibility',
'background',
'background-attachment',
'background-clip',
'background-color',
'background-image',
'background-origin',
'background-position',
'background-repeat',
'background-size',
'border',
'border-bottom',
'border-bottom-color',
'border-bottom-left-radius',
'border-bottom-right-radius',
'border-bottom-style',
'border-bottom-width',
'border-collapse',
'border-color',
'border-image',
'border-image-outset',
'border-image-repeat',
'border-image-slice',
'border-image-source',
'border-image-width',
'border-left',
'border-left-color',
'border-left-style',
'border-left-width',
'border-radius',
'border-right',
'border-right-color',
'border-right-style',
'border-right-width',
'border-spacing',
'border-style',
'border-top',
'border-top-color',
'border-top-left-radius',
'border-top-right-radius',
'border-top-style',
'border-top-width',
'border-width',
'bottom',
'box-decoration-break',
'box-shadow',
'box-sizing',
'break-after',
'break-before',
'break-inside',
'caption-side',
'clear',
'clip',
'clip-path',
'color',
'column-count',
'column-fill',
'column-gap',
'column-rule',
'column-rule-color',
'column-rule-style',
'column-rule-width',
'column-span',
'column-width',
'columns',
'content',
'counter-increment',
'counter-reset',
'cursor',
'direction',
'display',
'empty-cells',
'filter',
'flex',
'flex-basis',
'flex-direction',
'flex-flow',
'flex-grow',
'flex-shrink',
'flex-wrap',
'float',
'font',
'font-display',
'font-family',
'font-feature-settings',
'font-kerning',
'font-language-override',
'font-size',
'font-size-adjust',
'font-smoothing',
'font-stretch',
'font-style',
'font-variant',
'font-variant-ligatures',
'font-variation-settings',
'font-weight',
'height',
'hyphens',
'icon',
'image-orientation',
'image-rendering',
'image-resolution',
'ime-mode',
'inherit',
'initial',
'justify-content',
'left',
'letter-spacing',
'line-height',
'list-style',
'list-style-image',
'list-style-position',
'list-style-type',
'margin',
'margin-bottom',
'margin-left',
'margin-right',
'margin-top',
'marks',
'mask',
'max-height',
'max-width',
'min-height',
'min-width',
'nav-down',
'nav-index',
'nav-left',
'nav-right',
'nav-up',
'none',
'normal',
'object-fit',
'object-position',
'opacity',
'order',
'orphans',
'outline',
'outline-color',
'outline-offset',
'outline-style',
'outline-width',
'overflow',
'overflow-wrap',
'overflow-x',
'overflow-y',
'padding',
'padding-bottom',
'padding-left',
'padding-right',
'padding-top',
'page-break-after',
'page-break-before',
'page-break-inside',
'perspective',
'perspective-origin',
'pointer-events',
'position',
'quotes',
'resize',
'right',
'src', // @font-face
'tab-size',
'table-layout',
'text-align',
'text-align-last',
'text-decoration',
'text-decoration-color',
'text-decoration-line',
'text-decoration-style',
'text-indent',
'text-overflow',
'text-rendering',
'text-shadow',
'text-transform',
'text-underline-position',
'top',
'transform',
'transform-origin',
'transform-style',
'transition',
'transition-delay',
'transition-duration',
'transition-property',
'transition-timing-function',
'unicode-bidi',
'vertical-align',
'visibility',
'white-space',
'widows',
'width',
'word-break',
'word-spacing',
'word-wrap',
'z-index'
// reverse makes sure longer attributes `font-weight` are matched fully
// instead of getting false positives on say `font`
].reverse();
// some grammars use them all as a single group
const PSEUDO_SELECTORS = PSEUDO_CLASSES.concat(PSEUDO_ELEMENTS);
/*
Language: Less
Description: It's CSS, with just a little more.
Author: Max Mikhailov <seven.phases.max@gmail.com>
Website: http://lesscss.org
Category: common, css
*/
/** @type LanguageFn */
function less(hljs) {
const modes = MODES(hljs);
const PSEUDO_SELECTORS$1 = PSEUDO_SELECTORS;
const AT_MODIFIERS = "and or not only";
const IDENT_RE = '[\\w-]+'; // yes, Less identifiers may begin with a digit
const INTERP_IDENT_RE = '(' + IDENT_RE + '|@\\{' + IDENT_RE + '\\})';
/* Generic Modes */
const RULES = []; const VALUE_MODES = []; // forward def. for recursive modes
const STRING_MODE = function(c) {
return {
// Less strings are not multiline (also include '~' for more consistent coloring of "escaped" strings)
className: 'string',
begin: '~?' + c + '.*?' + c
};
};
const IDENT_MODE = function(name, begin, relevance) {
return {
className: name,
begin: begin,
relevance: relevance
};
};
const AT_KEYWORDS = {
$pattern: /[a-z-]+/,
keyword: AT_MODIFIERS,
attribute: MEDIA_FEATURES.join(" ")
};
const PARENS_MODE = {
// used only to properly balance nested parens inside mixin call, def. arg list
begin: '\\(',
end: '\\)',
contains: VALUE_MODES,
keywords: AT_KEYWORDS,
relevance: 0
};
// generic Less highlighter (used almost everywhere except selectors):
VALUE_MODES.push(
hljs.C_LINE_COMMENT_MODE,
hljs.C_BLOCK_COMMENT_MODE,
STRING_MODE("'"),
STRING_MODE('"'),
hljs.CSS_NUMBER_MODE, // fixme: it does not include dot for numbers like .5em :(
{
begin: '(url|data-uri)\\(',
starts: {
className: 'string',
end: '[\\)\\n]',
excludeEnd: true
}
},
modes.HEXCOLOR,
PARENS_MODE,
IDENT_MODE('variable', '@@?' + IDENT_RE, 10),
IDENT_MODE('variable', '@\\{' + IDENT_RE + '\\}'),
IDENT_MODE('built_in', '~?`[^`]*?`'), // inline javascript (or whatever host language) *multiline* string
{ // @media features (its here to not duplicate things in AT_RULE_MODE with extra PARENS_MODE overriding):
className: 'attribute',
begin: IDENT_RE + '\\s*:',
end: ':',
returnBegin: true,
excludeEnd: true
},
modes.IMPORTANT
);
const VALUE_WITH_RULESETS = VALUE_MODES.concat({
begin: /\{/,
end: /\}/,
contains: RULES
});
const MIXIN_GUARD_MODE = {
beginKeywords: 'when',
endsWithParent: true,
contains: [
{
beginKeywords: 'and not'
}
].concat(VALUE_MODES) // using this form to override VALUEs 'function' match
};
/* Rule-Level Modes */
const RULE_MODE = {
begin: INTERP_IDENT_RE + '\\s*:',
returnBegin: true,
end: /[;}]/,
relevance: 0,
contains: [
{
begin: /-(webkit|moz|ms|o)-/
},
{
className: 'attribute',
begin: '\\b(' + ATTRIBUTES.join('|') + ')\\b',
end: /(?=:)/,
starts: {
endsWithParent: true,
illegal: '[<=$]',
relevance: 0,
contains: VALUE_MODES
}
}
]
};
const AT_RULE_MODE = {
className: 'keyword',
begin: '@(import|media|charset|font-face|(-[a-z]+-)?keyframes|supports|document|namespace|page|viewport|host)\\b',
starts: {
end: '[;{}]',
keywords: AT_KEYWORDS,
returnEnd: true,
contains: VALUE_MODES,
relevance: 0
}
};
// variable definitions and calls
const VAR_RULE_MODE = {
className: 'variable',
variants: [
// using more strict pattern for higher relevance to increase chances of Less detection.
// this is *the only* Less specific statement used in most of the sources, so...
// (well still often loose to the css-parser unless there's '//' comment,
// simply because 1 variable just can't beat 99 properties :)
{
begin: '@' + IDENT_RE + '\\s*:',
relevance: 15
},
{
begin: '@' + IDENT_RE
}
],
starts: {
end: '[;}]',
returnEnd: true,
contains: VALUE_WITH_RULESETS
}
};
const SELECTOR_MODE = {
// first parse unambiguous selectors (i.e. those not starting with tag)
// then fall into the scary lookahead-discriminator variant.
// this mode also handles mixin definitions and calls
variants: [
{
begin: '[\\.#:&\\[>]',
end: '[;{}]' // mixin calls end with ';'
},
{
begin: INTERP_IDENT_RE,
end: /\{/
}
],
returnBegin: true,
returnEnd: true,
illegal: '[<=\'$"]',
relevance: 0,
contains: [
hljs.C_LINE_COMMENT_MODE,
hljs.C_BLOCK_COMMENT_MODE,
MIXIN_GUARD_MODE,
IDENT_MODE('keyword', 'all\\b'),
IDENT_MODE('variable', '@\\{' + IDENT_RE + '\\}'), // otherwise its identified as tag
{
begin: '\\b(' + TAGS.join('|') + ')\\b',
className: 'selector-tag'
},
IDENT_MODE('selector-tag', INTERP_IDENT_RE + '%?', 0), // '%' for more consistent coloring of @keyframes "tags"
IDENT_MODE('selector-id', '#' + INTERP_IDENT_RE),
IDENT_MODE('selector-class', '\\.' + INTERP_IDENT_RE, 0),
IDENT_MODE('selector-tag', '&', 0),
modes.ATTRIBUTE_SELECTOR_MODE,
{
className: 'selector-pseudo',
begin: ':(' + PSEUDO_CLASSES.join('|') + ')'
},
{
className: 'selector-pseudo',
begin: '::(' + PSEUDO_ELEMENTS.join('|') + ')'
},
{
begin: '\\(',
end: '\\)',
contains: VALUE_WITH_RULESETS
}, // argument list of parametric mixins
{
begin: '!important'
} // eat !important after mixin call or it will be colored as tag
]
};
const PSEUDO_SELECTOR_MODE = {
begin: IDENT_RE + ':(:)?' + `(${PSEUDO_SELECTORS$1.join('|')})`,
returnBegin: true,
contains: [ SELECTOR_MODE ]
};
RULES.push(
hljs.C_LINE_COMMENT_MODE,
hljs.C_BLOCK_COMMENT_MODE,
AT_RULE_MODE,
VAR_RULE_MODE,
PSEUDO_SELECTOR_MODE,
RULE_MODE,
SELECTOR_MODE
);
return {
name: 'Less',
case_insensitive: true,
illegal: '[=>\'/<($"]',
contains: RULES
};
}
module.exports = less;