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css-tree

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A tool set for CSS: fast detailed parser (CSS → AST), walker (AST traversal), generator (AST → CSS) and lexer (validation and matching) based on specs and browser implementations

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export default { "generic": true, "cssWideKeywords": [ "initial", "inherit", "unset", "revert", "revert-layer" ], "units": { "angle": [ "deg", "grad", "rad", "turn" ], "decibel": [ "db" ], "flex": [ "fr" ], "frequency": [ "hz", "khz" ], "length": [ "cm", "mm", "q", "in", "pt", "pc", "px", "em", "rem", "ex", "rex", "cap", "rcap", "ch", "rch", "ic", "ric", "lh", "rlh", "vw", "svw", "lvw", "dvw", "vh", "svh", "lvh", "dvh", "vi", "svi", "lvi", "dvi", "vb", "svb", "lvb", "dvb", "vmin", "svmin", "lvmin", "dvmin", "vmax", "svmax", "lvmax", "dvmax", "cqw", "cqh", "cqi", "cqb", "cqmin", "cqmax" ], "resolution": [ "dpi", "dpcm", "dppx", "x" ], "semitones": [ "st" ], "time": [ "s", "ms" ] }, "types": { "abs()": "abs( <calc-sum> )", "absolute-size": "xx-small|x-small|small|medium|large|x-large|xx-large|xxx-large", "acos()": "acos( <calc-sum> )", "alpha-value": "<number>|<percentage>", "angle-percentage": "<angle>|<percentage>", "angular-color-hint": "<angle-percentage>", "angular-color-stop": "<color>&&<color-stop-angle>?", "angular-color-stop-list": "[<angular-color-stop> [, <angular-color-hint>]?]# , <angular-color-stop>", "animateable-feature": "scroll-position|contents|<custom-ident>", "asin()": "asin( <calc-sum> )", "atan()": "atan( <calc-sum> )", "atan2()": "atan2( <calc-sum> , <calc-sum> )", "attachment": "scroll|fixed|local", "attr()": "attr( <attr-name> <type-or-unit>? [, <attr-fallback>]? )", "attr-matcher": "['~'|'|'|'^'|'$'|'*']? '='", "attr-modifier": "i|s", "attribute-selector": "'[' <wq-name> ']'|'[' <wq-name> <attr-matcher> [<string-token>|<ident-token>] <attr-modifier>? ']'", "auto-repeat": "repeat( [auto-fill|auto-fit] , [<line-names>? <fixed-size>]+ <line-names>? )", "auto-track-list": "[<line-names>? [<fixed-size>|<fixed-repeat>]]* <line-names>? <auto-repeat> [<line-names>? [<fixed-size>|<fixed-repeat>]]* <line-names>?", "axis": "block|inline|x|y", "baseline-position": "[first|last]? baseline", "basic-shape": "<inset()>|<xywh()>|<rect()>|<circle()>|<ellipse()>|<polygon()>|<path()>", "bg-image": "none|<image>", "bg-layer": "<bg-image>||<bg-position> [/ <bg-size>]?||<repeat-style>||<attachment>||<box>||<box>", "bg-position": "[[left|center|right|top|bottom|<length-percentage>]|[left|center|right|<length-percentage>] [top|center|bottom|<length-percentage>]|[center|[left|right] <length-percentage>?]&&[center|[top|bottom] <length-percentage>?]]", "bg-size": "[<length-percentage>|auto]{1,2}|cover|contain", "blur()": "blur( <length> )", "blend-mode": "normal|multiply|screen|overlay|darken|lighten|color-dodge|color-burn|hard-light|soft-light|difference|exclusion|hue|saturation|color|luminosity", "box": "border-box|padding-box|content-box", "brightness()": "brightness( <number-percentage> )", "calc()": "calc( <calc-sum> )", "calc-sum": "<calc-product> [['+'|'-'] <calc-product>]*", "calc-product": "<calc-value> ['*' <calc-value>|'/' <number>]*", "calc-value": "<number>|<dimension>|<percentage>|<calc-constant>|( <calc-sum> )", "calc-constant": "e|pi|infinity|-infinity|NaN", "cf-final-image": "<image>|<color>", "cf-mixing-image": "<percentage>?&&<image>", "circle()": "circle( [<shape-radius>]? [at <position>]? )", "clamp()": "clamp( <calc-sum>#{3} )", "class-selector": "'.' <ident-token>", "clip-source": "<url>", "color": "<color-base>|currentColor|<system-color>|<device-cmyk()>|<light-dark()>|<-non-standard-color>", "color-stop": "<color-stop-length>|<color-stop-angle>", "color-stop-angle": "<angle-percentage>{1,2}", "color-stop-length": "<length-percentage>{1,2}", "color-stop-list": "[<linear-color-stop> [, <linear-color-hint>]?]# , <linear-color-stop>", "color-interpolation-method": "in [<rectangular-color-space>|<polar-color-space> <hue-interpolation-method>?|<custom-color-space>]", "combinator": "'>'|'+'|'~'|['|' '|']", "common-lig-values": "[common-ligatures|no-common-ligatures]", "compat-auto": "searchfield|textarea|push-button|slider-horizontal|checkbox|radio|square-button|menulist|listbox|meter|progress-bar|button", "composite-style": "clear|copy|source-over|source-in|source-out|source-atop|destination-over|destination-in|destination-out|destination-atop|xor", "compositing-operator": "add|subtract|intersect|exclude", "compound-selector": "[<type-selector>? <subclass-selector>*]!", "compound-selector-list": "<compound-selector>#", "complex-selector": "<complex-selector-unit> [<combinator>? <complex-selector-unit>]*", "complex-selector-list": "<complex-selector>#", "conic-gradient()": "conic-gradient( [from <angle>]? [at <position>]? , <angular-color-stop-list> )", "contextual-alt-values": "[contextual|no-contextual]", "content-distribution": "space-between|space-around|space-evenly|stretch", "content-list": "[<string>|contents|<image>|<counter>|<quote>|<target>|<leader()>|<attr()>]+", "content-position": "center|start|end|flex-start|flex-end", "content-replacement": "<image>", "contrast()": "contrast( [<number-percentage>] )", "cos()": "cos( <calc-sum> )", "counter": "<counter()>|<counters()>", "counter()": "counter( <counter-name> , <counter-style>? )", "counter-name": "<custom-ident>", "counter-style": "<counter-style-name>|symbols( )", "counter-style-name": "<custom-ident>", "counters()": "counters( <counter-name> , <string> , <counter-style>? )", "cross-fade()": "cross-fade( <cf-mixing-image> , <cf-final-image>? )", "cubic-bezier-timing-function": "ease|ease-in|ease-out|ease-in-out|cubic-bezier( <number [0,1]> , <number> , <number [0,1]> , <number> )", "deprecated-system-color": "ActiveBorder|ActiveCaption|AppWorkspace|Background|ButtonFace|ButtonHighlight|ButtonShadow|ButtonText|CaptionText|GrayText|Highlight|HighlightText|InactiveBorder|InactiveCaption|InactiveCaptionText|InfoBackground|InfoText|Menu|MenuText|Scrollbar|ThreeDDarkShadow|ThreeDFace|ThreeDHighlight|ThreeDLightShadow|ThreeDShadow|Window|WindowFrame|WindowText", "discretionary-lig-values": "[discretionary-ligatures|no-discretionary-ligatures]", "display-box": "contents|none", "display-inside": "flow|flow-root|table|flex|grid|ruby", "display-internal": "table-row-group|table-header-group|table-footer-group|table-row|table-cell|table-column-group|table-column|table-caption|ruby-base|ruby-text|ruby-base-container|ruby-text-container", "display-legacy": "inline-block|inline-list-item|inline-table|inline-flex|inline-grid", "display-listitem": "<display-outside>?&&[flow|flow-root]?&&list-item", "display-outside": "block|inline|run-in", "drop-shadow()": "drop-shadow( <length>{2,3} <color>? )", "east-asian-variant-values": "[jis78|jis83|jis90|jis04|simplified|traditional]", "east-asian-width-values": "[full-width|proportional-width]", "element()": "element( <custom-ident> , [first|start|last|first-except]? )|element( <id-selector> )", "ellipse()": "ellipse( [<shape-radius>{2}]? [at <position>]? )", "ending-shape": "circle|ellipse", "env()": "env( <custom-ident> , <declaration-value>? )", "exp()": "exp( <calc-sum> )", "explicit-track-list": "[<line-names>? <track-size>]+ <line-names>?", "family-name": "<string>|<custom-ident>+", "feature-tag-value": "<string> [<integer>|on|off]?", "feature-type": "@stylistic|@historical-forms|@styleset|@character-variant|@swash|@ornaments|@annotation", "feature-value-block": "<feature-type> '{' <feature-value-declaration-list> '}'", "feature-value-block-list": "<feature-value-block>+", "feature-value-declaration": "<custom-ident> : <integer>+ ;", "feature-value-declaration-list": "<feature-value-declaration>", "feature-value-name": "<custom-ident>", "fill-rule": "nonzero|evenodd", "filter-function": "<blur()>|<brightness()>|<contrast()>|<drop-shadow()>|<grayscale()>|<hue-rotate()>|<invert()>|<opacity()>|<saturate()>|<sepia()>", "filter-function-list": "[<filter-function>|<url>]+", "final-bg-layer": "<'background-color'>||<bg-image>||<bg-position> [/ <bg-size>]?||<repeat-style>||<attachment>||<box>||<box>", "fixed-breadth": "<length-percentage>", "fixed-repeat": "repeat( [<integer [1,∞]>] , [<line-names>? <fixed-size>]+ <line-names>? )", "fixed-size": "<fixed-breadth>|minmax( <fixed-breadth> , <track-breadth> )|minmax( <inflexible-breadth> , <fixed-breadth> )", "font-stretch-absolute": "normal|ultra-condensed|extra-condensed|condensed|semi-condensed|semi-expanded|expanded|extra-expanded|ultra-expanded|<percentage>", "font-variant-css21": "[normal|small-caps]", "font-weight-absolute": "normal|bold|<number [1,1000]>", "frequency-percentage": "<frequency>|<percentage>", "general-enclosed": "[<function-token> <any-value>? )]|[( <any-value>? )]", "generic-family": "<generic-script-specific>|<generic-complete>|<generic-incomplete>|<-non-standard-generic-family>", "generic-name": "serif|sans-serif|cursive|fantasy|monospace", "geometry-box": "<shape-box>|fill-box|stroke-box|view-box", "gradient": "<linear-gradient()>|<repeating-linear-gradient()>|<radial-gradient()>|<repeating-radial-gradient()>|<conic-gradient()>|<repeating-conic-gradient()>|<-legacy-gradient>", "grayscale()": "grayscale( <number-percentage> )", "grid-line": "auto|<custom-ident>|[<integer>&&<custom-ident>?]|[span&&[<integer>||<custom-ident>]]", "historical-lig-values": "[historical-ligatures|no-historical-ligatures]", "hsl()": "hsl( <hue> <percentage> <percentage> [/ <alpha-value>]? )|hsl( <hue> , <percentage> , <percentage> , <alpha-value>? )", "hsla()": "hsla( <hue> <percentage> <percentage> [/ <alpha-value>]? )|hsla( <hue> , <percentage> , <percentage> , <alpha-value>? )", "hue": "<number>|<angle>", "hue-rotate()": "hue-rotate( <angle> )", "hue-interpolation-method": "[shorter|longer|increasing|decreasing] hue", "hwb()": "hwb( [<hue>|none] [<percentage>|none] [<percentage>|none] [/ [<alpha-value>|none]]? )", "hypot()": "hypot( <calc-sum># )", "image": "<url>|<image()>|<image-set()>|<element()>|<paint()>|<cross-fade()>|<gradient>", "image()": "image( <image-tags>? [<image-src>? , <color>?]! )", "image-set()": "image-set( <image-set-option># )", "image-set-option": "[<image>|<string>] [<resolution>||type( <string> )]", "image-src": "<url>|<string>", "image-tags": "ltr|rtl", "inflexible-breadth": "<length-percentage>|min-content|max-content|auto", "inset()": "inset( <length-percentage>{1,4} [round <'border-radius'>]? )", "invert()": "invert( <number-percentage> )", "keyframes-name": "<custom-ident>|<string>", "keyframe-block": "<keyframe-selector># { <declaration-list> }", "keyframe-block-list": "<keyframe-block>+", "keyframe-selector": "from|to|<percentage>|<timeline-range-name> <percentage>", "lab()": "lab( [<percentage>|<number>|none] [<percentage>|<number>|none] [<percentage>|<number>|none] [/ [<alpha-value>|none]]? )", "layer()": "layer( <layer-name> )", "layer-name": "<ident> ['.' <ident>]*", "lch()": "lch( [<percentage>|<number>|none] [<percentage>|<number>|none] [<hue>|none] [/ [<alpha-value>|none]]? )", "leader()": "leader( <leader-type> )", "leader-type": "dotted|solid|space|<string>", "length-percentage": "<length>|<percentage>", "light-dark()": "light-dark( <color> , <color> )", "line-names": "'[' <custom-ident>* ']'", "line-name-list": "[<line-names>|<name-repeat>]+", "line-style": "none|hidden|dotted|dashed|solid|double|groove|ridge|inset|outset", "line-width": "<length>|thin|medium|thick", "linear-color-hint": "<length-percentage>", "linear-color-stop": "<color> <color-stop-length>?", "linear-gradient()": "linear-gradient( [[<angle>|to <side-or-corner>]||<color-interpolation-method>]? , <color-stop-list> )", "log()": "log( <calc-sum> , <calc-sum>? )", "mask-layer": "<mask-reference>||<position> [/ <bg-size>]?||<repeat-style>||<geometry-box>||[<geometry-box>|no-clip]||<compositing-operator>||<masking-mode>", "mask-position": "[<length-percentage>|left|center|right] [<length-percentage>|top|center|bottom]?", "mask-reference": "none|<image>|<mask-source>", "mask-source": "<url>", "masking-mode": "alpha|luminance|match-source", "matrix()": "matrix( <number>#{6} )", "matrix3d()": "matrix3d( <number>#{16} )", "max()": "max( <calc-sum># )", "media-and": "<media-in-parens> [and <media-in-parens>]+", "media-condition": "<media-not>|<media-and>|<media-or>|<media-in-parens>", "media-condition-without-or": "<media-not>|<media-and>|<media-in-parens>", "media-feature": "( [<mf-plain>|<mf-boolean>|<mf-range>] )", "media-in-parens": "( <media-condition> )|<media-feature>|<general-enclosed>", "media-not": "not <media-in-parens>", "media-or": "<media-in-parens> [or <media-in-parens>]+", "media-query": "<media-condition>|[not|only]? <media-type> [and <media-condition-without-or>]?", "media-query-list": "<media-query>#", "media-type": "<ident>", "mf-boolean": "<mf-name>", "mf-name": "<ident>", "mf-plain": "<mf-name> : <mf-value>", "mf-range": "<mf-name> ['<'|'>']? '='? <mf-value>|<mf-value> ['<'|'>']? '='? <mf-name>|<mf-value> '<' '='? <mf-name> '<' '='? <mf-value>|<mf-value> '>' '='? <mf-name> '>' '='? <mf-value>", "mf-value": "<number>|<dimension>|<ident>|<ratio>", "min()": "min( <calc-sum># )", "minmax()": "minmax( [<length-percentage>|min-content|max-content|auto] , [<length-percentage>|<flex>|min-content|max-content|auto] )", "mod()": "mod( <calc-sum> , <calc-sum> )", "name-repeat": "repeat( [<integer [1,∞]>|auto-fill] , <line-names>+ )", "named-color": "transparent|aliceblue|antiquewhite|aqua|aquamarine|azure|beige|bisque|black|blanchedalmond|blue|blueviolet|brown|burlywood|cadetblue|chartreuse|chocolate|coral|cornflowerblue|cornsilk|crimson|cyan|darkblue|darkcyan|darkgoldenrod|darkgray|darkgreen|darkgrey|darkkhaki|darkmagenta|darkolivegreen|darkorange|darkorchid|darkred|darksalmon|darkseagreen|darkslateblue|darkslategray|darkslategrey|darkturquoise|darkviolet|deeppink|deepskyblue|dimgray|dimgrey|dodgerblue|firebrick|floralwhite|forestgreen|fuchsia|gainsboro|ghostwhite|gold|goldenrod|gray|green|greenyellow|grey|honeydew|hotpink|indianred|indigo|ivory|khaki|lavender|lavenderblush|lawngreen|lemonchiffon|lightblue|lightcoral|lightcyan|lightgoldenrodyellow|lightgray|lightgreen|lightgrey|lightpink|lightsalmon|lightseagreen|lightskyblue|lightslategray|lightslategrey|lightsteelblue|lightyellow|lime|limegreen|linen|magenta|maroon|mediumaquamarine|mediumblue|mediumorchid|mediumpurple|mediumseagreen|mediumslateblue|mediumspringgreen|mediumturquoise|mediumvioletred|midnightblue|mintcream|mistyrose|moccasin|navajowhite|navy|oldlace|olive|olivedrab|orange|orangered|orchid|palegoldenrod|palegreen|paleturquoise|palevioletred|papayawhip|peachpuff|peru|pink|plum|powderblue|purple|rebeccapurple|red|rosybrown|royalblue|saddlebrown|salmon|sandybrown|seagreen|seashell|sienna|silver|skyblue|slateblue|slategray|slategrey|snow|springgreen|steelblue|tan|teal|thistle|tomato|turquoise|violet|wheat|white|whitesmoke|yellow|yellowgreen", "namespace-prefix": "<ident>", "ns-prefix": "[<ident-token>|'*']? '|'", "number-percentage": "<number>|<percentage>", "numeric-figure-values": "[lining-nums|oldstyle-nums]", "numeric-fraction-values": "[diagonal-fractions|stacked-fractions]", "numeric-spacing-values": "[proportional-nums|tabular-nums]", "nth": "<an-plus-b>|even|odd", "opacity()": "opacity( [<number-percentage>] )", "overflow-position": "unsafe|safe", "outline-radius": "<length>|<percentage>", "page-body": "<declaration>? [; <page-body>]?|<page-margin-box> <page-body>", "page-margin-box": "<page-margin-box-type> '{' <declaration-list> '}'", "page-margin-box-type": "@top-left-corner|@top-left|@top-center|@top-right|@top-right-corner|@bottom-left-corner|@bottom-left|@bottom-center|@bottom-right|@bottom-right-corner|@left-top|@left-middle|@left-bottom|@right-top|@right-middle|@right-bottom", "page-selector-list": "[<page-selector>#]?", "page-selector": "<pseudo-page>+|<ident> <pseudo-page>*", "page-size": "A5|A4|A3|B5|B4|JIS-B5|JIS-B4|letter|legal|ledger", "path()": "path( [<fill-rule> ,]? <string> )", "paint()": "paint( <ident> , <declaration-value>? )", "perspective()": "perspective( [<length [0,∞]>|none] )", "polygon()": "polygon( <fill-rule>? , [<length-percentage> <length-percentage>]# )", "polar-color-space": "hsl|hwb|lch|oklch", "position": "[[left|center|right]||[top|center|bottom]|[left|center|right|<length-percentage>] [top|center|bottom|<length-percentage>]?|[[left|right] <length-percentage>]&&[[top|bottom] <length-percentage>]]", "pow()": "pow( <calc-sum> , <calc-sum> )", "pseudo-class-selector": "':' <ident-token>|':' <function-token> <any-value> ')'", "pseudo-element-selector": "':' <pseudo-class-selector>|<legacy-pseudo-element-selector>", "pseudo-page": ": [left|right|first|blank]", "quote": "open-quote|close-quote|no-open-quote|no-close-quote", "radial-gradient()": "radial-gradient( [<ending-shape>||<size>]? [at <position>]? , <color-stop-list> )", "ratio": "<number [0,∞]> [/ <number [0,∞]>]?", "ray()": "ray( <angle>&&<ray-size>?&&contain?&&[at <position>]? )", "ray-size": "closest-side|closest-corner|farthest-side|farthest-corner|sides", "rectangular-color-space": "srgb|srgb-linear|display-p3|a98-rgb|prophoto-rgb|rec2020|lab|oklab|xyz|xyz-d50|xyz-d65", "relative-selector": "<combinator>? <complex-selector>", "relative-selector-list": "<relative-selector>#", "relative-size": "larger|smaller", "rem()": "rem( <calc-sum> , <calc-sum> )", "repeat-style": "repeat-x|repeat-y|[repeat|space|round|no-repeat]{1,2}", "repeating-conic-gradient()": "repeating-conic-gradient( [from <angle>]? [at <position>]? , <angular-color-stop-list> )", "repeating-linear-gradient()": "repeating-linear-gradient( [<angle>|to <side-or-corner>]? , <color-stop-list> )", "repeating-radial-gradient()": "repeating-radial-gradient( [<ending-shape>||<size>]? 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"none|button|button-arrow-down|button-arrow-next|button-arrow-previous|button-arrow-up|button-bevel|button-focus|caret|checkbox|checkbox-container|checkbox-label|checkmenuitem|dualbutton|groupbox|listbox|listitem|menuarrow|menubar|menucheckbox|menuimage|menuitem|menuitemtext|menulist|menulist-button|menulist-text|menulist-textfield|menupopup|menuradio|menuseparator|meterbar|meterchunk|progressbar|progressbar-vertical|progresschunk|progresschunk-vertical|radio|radio-container|radio-label|radiomenuitem|range|range-thumb|resizer|resizerpanel|scale-horizontal|scalethumbend|scalethumb-horizontal|scalethumbstart|scalethumbtick|scalethumb-vertical|scale-vertical|scrollbarbutton-down|scrollbarbutton-left|scrollbarbutton-right|scrollbarbutton-up|scrollbarthumb-horizontal|scrollbarthumb-vertical|scrollbartrack-horizontal|scrollbartrack-vertical|searchfield|separator|sheet|spinner|spinner-downbutton|spinner-textfield|spinner-upbutton|splitter|statusbar|statusbarpanel|tab|tabpanel|tabpanels|tab-scroll-arrow-back|tab-scroll-arrow-forward|textfield|textfield-multiline|toolbar|toolbarbutton|toolbarbutton-dropdown|toolbargripper|toolbox|tooltip|treeheader|treeheadercell|treeheadersortarrow|treeitem|treeline|treetwisty|treetwistyopen|treeview|-moz-mac-unified-toolbar|-moz-win-borderless-glass|-moz-win-browsertabbar-toolbox|-moz-win-communicationstext|-moz-win-communications-toolbox|-moz-win-exclude-glass|-moz-win-glass|-moz-win-mediatext|-moz-win-media-toolbox|-moz-window-button-box|-moz-window-button-box-maximized|-moz-window-button-close|-moz-window-button-maximize|-moz-window-button-minimize|-moz-window-button-restore|-moz-window-frame-bottom|-moz-window-frame-left|-moz-window-frame-right|-moz-window-titlebar|-moz-window-titlebar-maximized", 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"-moz-user-modify": "read-only|read-write|write-only", "-moz-window-dragging": "drag|no-drag", "-moz-window-shadow": "default|menu|tooltip|sheet|none", "-webkit-appearance": 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"azimuth": "<angle>|[[left-side|far-left|left|center-left|center|center-right|right|far-right|right-side]||behind]|leftwards|rightwards", "backdrop-filter": "none|<filter-function-list>", "backface-visibility": "visible|hidden", "background": "[<bg-layer> ,]* <final-bg-layer>", "background-attachment": "<attachment>#", "background-blend-mode": "<blend-mode>#", "background-cl