const MODES = (hljs) => {
    return {
        IMPORTANT: {
            scope: 'meta',
            begin: '!important'
        },
        BLOCK_COMMENT: hljs.C_BLOCK_COMMENT_MODE,
        HEXCOLOR: {
            scope: 'number',
            begin: /#(([0-9a-fA-F]{3,4})|(([0-9a-fA-F]{2}){3,4}))\b/
        },
        FUNCTION_DISPATCH: {
            className: "built_in",
            begin: /[\w-]+(?=\()/
        },
        ATTRIBUTE_SELECTOR_MODE: {
            scope: 'selector-attr',
            begin: /\[/,
            end: /\]/,
            illegal: '$',
            contains: [
                hljs.APOS_STRING_MODE,
                hljs.QUOTE_STRING_MODE
            ]
        },
        CSS_NUMBER_MODE: {
            scope: 'number',
            begin: hljs.NUMBER_RE + '(' +
                '%|em|ex|ch|rem' +
                '|vw|vh|vmin|vmax' +
                '|cm|mm|in|pt|pc|px' +
                '|deg|grad|rad|turn' +
                '|s|ms' +
                '|Hz|kHz' +
                '|dpi|dpcm|dppx' +
                ')?',
            relevance: 0
        },
        CSS_VARIABLE: {
            className: "attr",
            begin: /--[A-Za-z_][A-Za-z0-9_-]*/
        }
    };
};
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',
    'all',
    'animation',
    'animation-delay',
    'animation-direction',
    'animation-duration',
    'animation-fill-mode',
    'animation-iteration-count',
    'animation-name',
    'animation-play-state',
    'animation-timing-function',
    'backface-visibility',
    'background',
    'background-attachment',
    'background-blend-mode',
    'background-clip',
    'background-color',
    'background-image',
    'background-origin',
    'background-position',
    'background-repeat',
    'background-size',
    'block-size',
    'border',
    'border-block',
    'border-block-color',
    'border-block-end',
    'border-block-end-color',
    'border-block-end-style',
    'border-block-end-width',
    'border-block-start',
    'border-block-start-color',
    'border-block-start-style',
    'border-block-start-width',
    'border-block-style',
    'border-block-width',
    '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-inline',
    'border-inline-color',
    'border-inline-end',
    'border-inline-end-color',
    'border-inline-end-style',
    'border-inline-end-width',
    'border-inline-start',
    'border-inline-start-color',
    'border-inline-start-style',
    'border-inline-start-width',
    'border-inline-style',
    'border-inline-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',
    'caret-color',
    'clear',
    'clip',
    'clip-path',
    'clip-rule',
    'color',
    'column-count',
    'column-fill',
    'column-gap',
    'column-rule',
    'column-rule-color',
    'column-rule-style',
    'column-rule-width',
    'column-span',
    'column-width',
    'columns',
    'contain',
    'content',
    'content-visibility',
    'counter-increment',
    'counter-reset',
    'cue',
    'cue-after',
    'cue-before',
    'cursor',
    'direction',
    'display',
    'empty-cells',
    'filter',
    'flex',
    'flex-basis',
    'flex-direction',
    'flex-flow',
    'flex-grow',
    'flex-shrink',
    'flex-wrap',
    'float',
    'flow',
    '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-synthesis',
    'font-variant',
    'font-variant-caps',
    'font-variant-east-asian',
    'font-variant-ligatures',
    'font-variant-numeric',
    'font-variant-position',
    'font-variation-settings',
    'font-weight',
    'gap',
    'glyph-orientation-vertical',
    'grid',
    'grid-area',
    'grid-auto-columns',
    'grid-auto-flow',
    'grid-auto-rows',
    'grid-column',
    'grid-column-end',
    'grid-column-start',
    'grid-gap',
    'grid-row',
    'grid-row-end',
    'grid-row-start',
    'grid-template',
    'grid-template-areas',
    'grid-template-columns',
    'grid-template-rows',
    'hanging-punctuation',
    'height',
    'hyphens',
    'icon',
    'image-orientation',
    'image-rendering',
    'image-resolution',
    'ime-mode',
    'inline-size',
    'isolation',
    'justify-content',
    'left',
    'letter-spacing',
    'line-break',
    'line-height',
    'list-style',
    'list-style-image',
    'list-style-position',
    'list-style-type',
    'margin',
    'margin-block',
    'margin-block-end',
    'margin-block-start',
    'margin-bottom',
    'margin-inline',
    'margin-inline-end',
    'margin-inline-start',
    'margin-left',
    'margin-right',
    'margin-top',
    'marks',
    'mask',
    'mask-border',
    'mask-border-mode',
    'mask-border-outset',
    'mask-border-repeat',
    'mask-border-slice',
    'mask-border-source',
    'mask-border-width',
    'mask-clip',
    'mask-composite',
    'mask-image',
    'mask-mode',
    'mask-origin',
    'mask-position',
    'mask-repeat',
    'mask-size',
    'mask-type',
    'max-block-size',
    'max-height',
    'max-inline-size',
    'max-width',
    'min-block-size',
    'min-height',
    'min-inline-size',
    'min-width',
    'mix-blend-mode',
    '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-block',
    'padding-block-end',
    'padding-block-start',
    'padding-bottom',
    'padding-inline',
    'padding-inline-end',
    'padding-inline-start',
    'padding-left',
    'padding-right',
    'padding-top',
    'page-break-after',
    'page-break-before',
    'page-break-inside',
    'pause',
    'pause-after',
    'pause-before',
    'perspective',
    'perspective-origin',
    'pointer-events',
    'position',
    'quotes',
    'resize',
    'rest',
    'rest-after',
    'rest-before',
    'right',
    'row-gap',
    'scroll-margin',
    'scroll-margin-block',
    'scroll-margin-block-end',
    'scroll-margin-block-start',
    'scroll-margin-bottom',
    'scroll-margin-inline',
    'scroll-margin-inline-end',
    'scroll-margin-inline-start',
    'scroll-margin-left',
    'scroll-margin-right',
    'scroll-margin-top',
    'scroll-padding',
    'scroll-padding-block',
    'scroll-padding-block-end',
    'scroll-padding-block-start',
    'scroll-padding-bottom',
    'scroll-padding-inline',
    'scroll-padding-inline-end',
    'scroll-padding-inline-start',
    'scroll-padding-left',
    'scroll-padding-right',
    'scroll-padding-top',
    'scroll-snap-align',
    'scroll-snap-stop',
    'scroll-snap-type',
    'scrollbar-color',
    'scrollbar-gutter',
    'scrollbar-width',
    'shape-image-threshold',
    'shape-margin',
    'shape-outside',
    'speak',
    'speak-as',
    'src', // @font-face
    'tab-size',
    'table-layout',
    'text-align',
    'text-align-all',
    'text-align-last',
    'text-combine-upright',
    'text-decoration',
    'text-decoration-color',
    'text-decoration-line',
    'text-decoration-style',
    'text-emphasis',
    'text-emphasis-color',
    'text-emphasis-position',
    'text-emphasis-style',
    'text-indent',
    'text-justify',
    'text-orientation',
    'text-overflow',
    'text-rendering',
    'text-shadow',
    'text-transform',
    'text-underline-position',
    'top',
    'transform',
    'transform-box',
    'transform-origin',
    'transform-style',
    'transition',
    'transition-delay',
    'transition-duration',
    'transition-property',
    'transition-timing-function',
    'unicode-bidi',
    'vertical-align',
    'visibility',
    'voice-balance',
    'voice-duration',
    'voice-family',
    'voice-pitch',
    'voice-range',
    'voice-rate',
    'voice-stress',
    'voice-volume',
    'white-space',
    'widows',
    'width',
    'will-change',
    'word-break',
    'word-spacing',
    'word-wrap',
    'writing-mode',
    '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, web
*/
/** @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('"'), modes.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
    {
        className: 'attribute',
        begin: IDENT_RE + '\\s*:',
        end: ':',
        returnBegin: true,
        excludeEnd: true
    }, modes.IMPORTANT, { beginKeywords: 'and not' }, modes.FUNCTION_DISPATCH);
    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 VALUE’s 'function' match
    };
    /* Rule-Level Modes */
    const RULE_MODE = {
        begin: INTERP_IDENT_RE + '\\s*:',
        returnBegin: true,
        end: /[;}]/,
        relevance: 0,
        contains: [
            { begin: /-(webkit|moz|ms|o)-/ },
            modes.CSS_VARIABLE,
            {
                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...
            // (we’ll 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 it’s identified as tag
            {
                begin: '\\b(' + TAGS.join('|') + ')\\b',
                className: 'selector-tag'
            },
            modes.CSS_NUMBER_MODE,
            IDENT_MODE('selector-tag', INTERP_IDENT_RE, 0),
            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: /\(/,
                end: /\)/,
                relevance: 0,
                contains: VALUE_WITH_RULESETS
            }, // argument list of parametric mixins
            { begin: '!important' }, // eat !important after mixin call or it will be colored as tag
            modes.FUNCTION_DISPATCH
        ]
    };
    const PSEUDO_SELECTOR_MODE = {
        begin: IDENT_RE + ':(:)?' + `(${PSEUDO_SELECTORS$1.join('|')})`,
        returnBegin: true,
        contains: [SELECTOR_MODE]
    };
    RULES.push(hljs.C_LINE_COMMENT_MODE, hljs.C_BLOCK_COMMENT_MODE, AT_RULE_MODE, VAR_RULE_MODE, PSEUDO_SELECTOR_MODE, RULE_MODE, SELECTOR_MODE, MIXIN_GUARD_MODE, modes.FUNCTION_DISPATCH);
    return {
        name: 'Less',
        case_insensitive: true,
        illegal: '[=>\'/<($"]',
        contains: RULES
    };
}
export { less as default };
//# sourceMappingURL=less.js.map