css.js

// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://codemirror.net/5/LICENSE

(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
    mod(require("../../lib/codemirror"));
  else if (typeof define == "function" && define.amd) // AMD
    define(["../../lib/codemirror"], mod);
  else // Plain browser env
    mod(CodeMirror);
})(function(CodeMirror) {
"use strict";

CodeMirror.defineMode("css", function(config, parserConfig) {
  var inline = parserConfig.inline
  if (!parserConfig.propertyKeywords) parserConfig = CodeMirror.resolveMode("text/css");

  var indentUnit = config.indentUnit,
      tokenHooks = parserConfig.tokenHooks,
      documentTypes = parserConfig.documentTypes || {},
      mediaTypes = parserConfig.mediaTypes || {},
      mediaFeatures = parserConfig.mediaFeatures || {},
      mediaValueKeywords = parserConfig.mediaValueKeywords || {},
      propertyKeywords = parserConfig.propertyKeywords || {},
      nonStandardPropertyKeywords = parserConfig.nonStandardPropertyKeywords || {},
      fontProperties = parserConfig.fontProperties || {},
      counterDescriptors = parserConfig.counterDescriptors || {},
      colorKeywords = parserConfig.colorKeywords || {},
      valueKeywords = parserConfig.valueKeywords || {},
      allowNested = parserConfig.allowNested,
      lineComment = parserConfig.lineComment,
      supportsAtComponent = parserConfig.supportsAtComponent === true,
      highlightNonStandardPropertyKeywords = config.highlightNonStandardPropertyKeywords !== false;

  var type, override;
  function ret(style, tp) { type = tp; return style; }

  // Tokenizers

  function tokenBase(stream, state) {
    var ch = stream.next();
    if (tokenHooks[ch]) {
      var result = tokenHooks[ch](stream, state);
      if (result !== false) return result;
    }
    if (ch == "@") {
      stream.eatWhile(/[\w\\\-]/);
      return ret("def", stream.current());
    } else if (ch == "=" || (ch == "~" || ch == "|") && stream.eat("=")) {
      return ret(null, "compare");
    } else if (ch == "\"" || ch == "'") {
      state.tokenize = tokenString(ch);
      return state.tokenize(stream, state);
    } else if (ch == "#") {
      stream.eatWhile(/[\w\\\-]/);
      return ret("atom", "hash");
    } else if (ch == "!") {
      stream.match(/^\s*\w*/);
      return ret("keyword", "important");
    } else if (/\d/.test(ch) || ch == "." && stream.eat(/\d/)) {
      stream.eatWhile(/[\w.%]/);
      return ret("number", "unit");
    } else if (ch === "-") {
      if (/[\d.]/.test(stream.peek())) {
        stream.eatWhile(/[\w.%]/);
        return ret("number", "unit");
      } else if (stream.match(/^-[\w\\\-]*/)) {
        stream.eatWhile(/[\w\\\-]/);
        if (stream.match(/^\s*:/, false))
          return ret("variable-2", "variable-definition");
        return ret("variable-2", "variable");
      } else if (stream.match(/^\w+-/)) {
        return ret("meta", "meta");
      }
    } else if (/[,+>*\/]/.test(ch)) {
      return ret(null, "select-op");
    } else if (ch == "." && stream.match(/^-?[_a-z][_a-z0-9-]*/i)) {
      return ret("qualifier", "qualifier");
    } else if (/[:;{}\[\]\(\)]/.test(ch)) {
      return ret(null, ch);
    } else if (stream.match(/^[\w-.]+(?=\()/)) {
      if (/^(url(-prefix)?|domain|regexp)$/i.test(stream.current())) {
        state.tokenize = tokenParenthesized;
      }
      return ret("variable callee", "variable");
    } else if (/[\w\\\-]/.test(ch)) {
      stream.eatWhile(/[\w\\\-]/);
      return ret("property", "word");
    } else {
      return ret(null, null);
    }
  }

  function tokenString(quote) {
    return function(stream, state) {
      var escaped = false, ch;
      while ((ch = stream.next()) != null) {
        if (ch == quote && !escaped) {
          if (quote == ")") stream.backUp(1);
          break;
        }
        escaped = !escaped && ch == "\\";
      }
      if (ch == quote || !escaped && quote != ")") state.tokenize = null;
      return ret("string", "string");
    };
  }

  function tokenParenthesized(stream, state) {
    stream.next(); // Must be '('
    if (!stream.match(/^\s*[\"\')]/, false))
      state.tokenize = tokenString(")");
    else
      state.tokenize = null;
    return ret(null, "(");
  }

  // Context management

  function Context(type, indent, prev) {
    this.type = type;
    this.indent = indent;
    this.prev = prev;
  }

  function pushContext(state, stream, type, indent) {
    state.context = new Context(type, stream.indentation() + (indent === false ? 0 : indentUnit), state.context);
    return type;
  }

  function popContext(state) {
    if (state.context.prev)
      state.context = state.context.prev;
    return state.context.type;
  }

  function pass(type, stream, state) {
    return states[state.context.type](type, stream, state);
  }
  function popAndPass(type, stream, state, n) {
    for (var i = n || 1; i > 0; i--)
      state.context = state.context.prev;
    return pass(type, stream, state);
  }

  // Parser

  function wordAsValue(stream) {
    var word = stream.current().toLowerCase();
    if (valueKeywords.hasOwnProperty(word))
      override = "atom";
    else if (colorKeywords.hasOwnProperty(word))
      override = "keyword";
    else
      override = "variable";
  }

  var states = {};

  states.top = function(type, stream, state) {
    if (type == "{") {
      return pushContext(state, stream, "block");
    } else if (type == "}" && state.context.prev) {
      return popContext(state);
    } else if (supportsAtComponent && /@component/i.test(type)) {
      return pushContext(state, stream, "atComponentBlock");
    } else if (/^@(-moz-)?document$/i.test(type)) {
      return pushContext(state, stream, "documentTypes");
    } else if (/^@(media|supports|(-moz-)?document|import)$/i.test(type)) {
      return pushContext(state, stream, "atBlock");
    } else if (/^@(font-face|counter-style)/i.test(type)) {
      state.stateArg = type;
      return "restricted_atBlock_before";
    } else if (/^@(-(moz|ms|o|webkit)-)?keyframes$/i.test(type)) {
      return "keyframes";
    } else if (type && type.charAt(0) == "@") {
      return pushContext(state, stream, "at");
    } else if (type == "hash") {
      override = "builtin";
    } else if (type == "word") {
      override = "tag";
    } else if (type == "variable-definition") {
      return "maybeprop";
    } else if (type == "interpolation") {
      return pushContext(state, stream, "interpolation");
    } else if (type == ":") {
      return "pseudo";
    } else if (allowNested && type == "(") {
      return pushContext(state, stream, "parens");
    }
    return state.context.type;
  };

  states.block = function(type, stream, state) {
    if (type == "word") {
      var word = stream.current().toLowerCase();
      if (propertyKeywords.hasOwnProperty(word)) {
        override = "property";
        return "maybeprop";
      } else if (nonStandardPropertyKeywords.hasOwnProperty(word)) {
        override = highlightNonStandardPropertyKeywords ? "string-2" : "property";
        return "maybeprop";
      } else if (allowNested) {
        override = stream.match(/^\s*:(?:\s|$)/, false) ? "property" : "tag";
        return "block";
      } else {
        override += " error";
        return "maybeprop";
      }
    } else if (type == "meta") {
      return "block";
    } else if (!allowNested && (type == "hash" || type == "qualifier")) {
      override = "error";
      return "block";
    } else {
      return states.top(type, stream, state);
    }
  };

  states.maybeprop = function(type, stream, state) {
    if (type == ":") return pushContext(state, stream, "prop");
    return pass(type, stream, state);
  };

  states.prop = function(type, stream, state) {
    if (type == ";") return popContext(state);
    if (type == "{" && allowNested) return pushContext(state, stream, "propBlock");
    if (type == "}" || type == "{") return popAndPass(type, stream, state);
    if (type == "(") return pushContext(state, stream, "parens");

    if (type == "hash" && !/^#([0-9a-fA-F]{3,4}|[0-9a-fA-F]{6}|[0-9a-fA-F]{8})$/.test(stream.current())) {
      override += " error";
    } else if (type == "word") {
      wordAsValue(stream);
    } else if (type == "interpolation") {
      return pushContext(state, stream, "interpolation");
    }
    return "prop";
  };

  states.propBlock = function(type, _stream, state) {
    if (type == "}") return popContext(state);
    if (type == "word") { override = "property"; return "maybeprop"; }
    return state.context.type;
  };

  states.parens = function(type, stream, state) {
    if (type == "{" || type == "}") return popAndPass(type, stream, state);
    if (type == ")") return popContext(state);
    if (type == "(") return pushContext(state, stream, "parens");
    if (type == "interpolation") return pushContext(state, stream, "interpolation");
    if (type == "word") wordAsValue(stream);
    return "parens";
  };

  states.pseudo = function(type, stream, state) {
    if (type == "meta") return "pseudo";

    if (type == "word") {
      override = "variable-3";
      return state.context.type;
    }
    return pass(type, stream, state);
  };

  states.documentTypes = function(type, stream, state) {
    if (type == "word" && documentTypes.hasOwnProperty(stream.current())) {
      override = "tag";
      return state.context.type;
    } else {
      return states.atBlock(type, stream, state);
    }
  };

  states.atBlock = function(type, stream, state) {
    if (type == "(") return pushContext(state, stream, "atBlock_parens");
    if (type == "}" || type == ";") return popAndPass(type, stream, state);
    if (type == "{") return popContext(state) && pushContext(state, stream, allowNested ? "block" : "top");

    if (type == "interpolation") return pushContext(state, stream, "interpolation");

    if (type == "word") {
      var word = stream.current().toLowerCase();
      if (word == "only" || word == "not" || word == "and" || word == "or")
        override = "keyword";
      else if (mediaTypes.hasOwnProperty(word))
        override = "attribute";
      else if (mediaFeatures.hasOwnProperty(word))
        override = "property";
      else if (mediaValueKeywords.hasOwnProperty(word))
        override = "keyword";
      else if (propertyKeywords.hasOwnProperty(word))
        override = "property";
      else if (nonStandardPropertyKeywords.hasOwnProperty(word))
        override = highlightNonStandardPropertyKeywords ? "string-2" : "property";
      else if (valueKeywords.hasOwnProperty(word))
        override = "atom";
      else if (colorKeywords.hasOwnProperty(word))
        override = "keyword";
      else
        override = "error";
    }
    return state.context.type;
  };

  states.atComponentBlock = function(type, stream, state) {
    if (type == "}")
      return popAndPass(type, stream, state);
    if (type == "{")
      return popContext(state) && pushContext(state, stream, allowNested ? "block" : "top", false);
    if (type == "word")
      override = "error";
    return state.context.type;
  };

  states.atBlock_parens = function(type, stream, state) {
    if (type == ")") return popContext(state);
    if (type == "{" || type == "}") return popAndPass(type, stream, state, 2);
    return states.atBlock(type, stream, state);
  };

  states.restricted_atBlock_before = function(type, stream, state) {
    if (type == "{")
      return pushContext(state, stream, "restricted_atBlock");
    if (type == "word" && state.stateArg == "@counter-style") {
      override = "variable";
      return "restricted_atBlock_before";
    }
    return pass(type, stream, state);
  };

  states.restricted_atBlock = function(type, stream, state) {
    if (type == "}") {
      state.stateArg = null;
      return popContext(state);
    }
    if (type == "word") {
      if ((state.stateArg == "@font-face" && !fontProperties.hasOwnProperty(stream.current().toLowerCase())) ||
          (state.stateArg == "@counter-style" && !counterDescriptors.hasOwnProperty(stream.current().toLowerCase())))
        override = "error";
      else
        override = "property";
      return "maybeprop";
    }
    return "restricted_atBlock";
  };

  states.keyframes = function(type, stream, state) {
    if (type == "word") { override = "variable"; return "keyframes"; }
    if (type == "{") return pushContext(state, stream, "top");
    return pass(type, stream, state);
  };

  states.at = function(type, stream, state) {
    if (type == ";") return popContext(state);
    if (type == "{" || type == "}") return popAndPass(type, stream, state);
    if (type == "word") override = "tag";
    else if (type == "hash") override = "builtin";
    return "at";
  };

  states.interpolation = function(type, stream, state) {
    if (type == "}") return popContext(state);
    if (type == "{" || type == ";") return popAndPass(type, stream, state);
    if (type == "word") override = "variable";
    else if (type != "variable" && type != "(" && type != ")") override = "error";
    return "interpolation";
  };

  return {
    startState: function(base) {
      return {tokenize: null,
              state: inline ? "block" : "top",
              stateArg: null,
              context: new Context(inline ? "block" : "top", base || 0, null)};
    },

    token: function(stream, state) {
      if (!state.tokenize && stream.eatSpace()) return null;
      var style = (state.tokenize || tokenBase)(stream, state);
      if (style && typeof style == "object") {
        type = style[1];
        style = style[0];
      }
      override = style;
      if (type != "comment")
        state.state = states[state.state](type, stream, state);
      return override;
    },

    indent: function(state, textAfter) {
      var cx = state.context, ch = textAfter && textAfter.charAt(0);
      var indent = cx.indent;
      if (cx.type == "prop" && (ch == "}" || ch == ")")) cx = cx.prev;
      if (cx.prev) {
        if (ch == "}" && (cx.type == "block" || cx.type == "top" ||
                          cx.type == "interpolation" || cx.type == "restricted_atBlock")) {
          // Resume indentation from parent context.
          cx = cx.prev;
          indent = cx.indent;
        } else if (ch == ")" && (cx.type == "parens" || cx.type == "atBlock_parens") ||
            ch == "{" && (cx.type == "at" || cx.type == "atBlock")) {
          // Dedent relative to current context.
          indent = Math.max(0, cx.indent - indentUnit);
        }
      }
      return indent;
    },

    electricChars: "}",
    blockCommentStart: "/*",
    blockCommentEnd: "*/",
    blockCommentContinue: " * ",
    lineComment: lineComment,
    fold: "brace"
  };
});

  function keySet(array) {
    var keys = {};
    for (var i = 0; i < array.length; ++i) {
      keys[array[i].toLowerCase()] = true;
    }
    return keys;
  }

  var documentTypes_ = [
    "domain", "regexp", "url", "url-prefix"
  ], documentTypes = keySet(documentTypes_);

  var mediaTypes_ = [
    "all", "aural", "braille", "handheld", "print", "projection", "screen",
    "tty", "tv", "embossed"
  ], mediaTypes = keySet(mediaTypes_);

  var mediaFeatures_ = [
    "width", "min-width", "max-width", "height", "min-height", "max-height",
    "device-width", "min-device-width", "max-device-width", "device-height",
    "min-device-height", "max-device-height", "aspect-ratio",
    "min-aspect-ratio", "max-aspect-ratio", "device-aspect-ratio",
    "min-device-aspect-ratio", "max-device-aspect-ratio", "color", "min-color",
    "max-color", "color-index", "min-color-index", "max-color-index",
    "monochrome", "min-monochrome", "max-monochrome", "resolution",
    "min-resolution", "max-resolution", "scan", "grid", "orientation",
    "device-pixel-ratio", "min-device-pixel-ratio", "max-device-pixel-ratio",
    "pointer", "any-pointer", "hover", "any-hover", "prefers-color-scheme",
    "dynamic-range", "video-dynamic-range"
  ], mediaFeatures = keySet(mediaFeatures_);

  var mediaValueKeywords_ = [
    "landscape", "portrait", "none", "coarse", "fine", "on-demand", "hover",
    "interlace", "progressive",
    "dark", "light",
    "standard", "high"
  ], mediaValueKeywords = keySet(mediaValueKeywords_);

  var propertyKeywords_ = [
    "align-content", "align-items", "align-self", "alignment-adjust",
    "alignment-baseline", "all", "anchor-point", "animation", "animation-delay",
    "animation-direction", "animation-duration", "animation-fill-mode",
    "animation-iteration-count", "animation-name", "animation-play-state",
    "animation-timing-function", "appearance", "azimuth", "backdrop-filter",
    "backface-visibility", "background", "background-attachment",
    "background-blend-mode", "background-clip", "background-color",
    "background-image", "background-origin", "background-position",
    "background-position-x", "background-position-y", "background-repeat",
    "background-size", "baseline-shift", "binding", "bleed", "block-size",
    "bookmark-label", "bookmark-level", "bookmark-state", "bookmark-target",
    "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", "caret-color",
    "clear", "clip", "color", "color-profile", "column-count", "column-fill",
    "column-gap", "column-rule", "column-rule-color", "column-rule-style",
    "column-rule-width", "column-span", "column-width", "columns", "contain",
    "content", "counter-increment", "counter-reset", "crop", "cue", "cue-after",
    "cue-before", "cursor", "direction", "display", "dominant-baseline",
    "drop-initial-after-adjust", "drop-initial-after-align",
    "drop-initial-before-adjust", "drop-initial-before-align", "drop-initial-size",
    "drop-initial-value", "elevation", "empty-cells", "fit", "fit-content", "fit-position",
    "flex", "flex-basis", "flex-direction", "flex-flow", "flex-grow",
    "flex-shrink", "flex-wrap", "float", "float-offset", "flow-from", "flow-into",
    "font", "font-family", "font-feature-settings", "font-kerning",
    "font-language-override", "font-optical-sizing", "font-size",
    "font-size-adjust", "font-stretch", "font-style", "font-synthesis",
    "font-variant", "font-variant-alternates", "font-variant-caps",
    "font-variant-east-asian", "font-variant-ligatures", "font-variant-numeric",
    "font-variant-position", "font-variation-settings", "font-weight", "gap",
    "grid", "grid-area", "grid-auto-columns", "grid-auto-flow", "grid-auto-rows",
    "grid-column", "grid-column-end", "grid-column-gap", "grid-column-start",
    "grid-gap", "grid-row", "grid-row-end", "grid-row-gap", "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", "inline-box-align",
    "inset", "inset-block", "inset-block-end", "inset-block-start", "inset-inline",
    "inset-inline-end", "inset-inline-start", "isolation", "justify-content",
    "justify-items", "justify-self", "left", "letter-spacing", "line-break",
    "line-height", "line-height-step", "line-stacking", "line-stacking-ruby",
    "line-stacking-shift", "line-stacking-strategy", "list-style",
    "list-style-image", "list-style-position", "list-style-type", "margin",
    "margin-bottom", "margin-left", "margin-right", "margin-top", "marks",
    "marquee-direction", "marquee-loop", "marquee-play-count", "marquee-speed",
    "marquee-style", "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", "move-to", "nav-down", "nav-index", "nav-left", "nav-right",
    "nav-up", "object-fit", "object-position", "offset", "offset-anchor",
    "offset-distance", "offset-path", "offset-position", "offset-rotate",
    "opacity", "order", "orphans", "outline", "outline-color", "outline-offset",
    "outline-style", "outline-width", "overflow", "overflow-style",
    "overflow-wrap", "overflow-x", "overflow-y", "padding", "padding-bottom",
    "padding-left", "padding-right", "padding-top", "page", "page-break-after",
    "page-break-before", "page-break-inside", "page-policy", "pause",
    "pause-after", "pause-before", "perspective", "perspective-origin", "pitch",
    "pitch-range", "place-content", "place-items", "place-self", "play-during",
    "position", "presentation-level", "punctuation-trim", "quotes",
    "region-break-after", "region-break-before", "region-break-inside",
    "region-fragment", "rendering-intent", "resize", "rest", "rest-after",
    "rest-before", "richness", "right", "rotate", "rotation", "rotation-point",
    "row-gap", "ruby-align", "ruby-overhang", "ruby-position", "ruby-span",
    "scale", "scroll-behavior", "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-type",
    "shape-image-threshold", "shape-inside", "shape-margin", "shape-outside",
    "size", "speak", "speak-as", "speak-header", "speak-numeral",
    "speak-punctuation", "speech-rate", "stress", "string-set", "tab-size",
    "table-layout", "target", "target-name", "target-new", "target-position",
    "text-align", "text-align-last", "text-combine-upright", "text-decoration",
    "text-decoration-color", "text-decoration-line", "text-decoration-skip",
    "text-decoration-skip-ink", "text-decoration-style", "text-emphasis",
    "text-emphasis-color", "text-emphasis-position", "text-emphasis-style",
    "text-height", "text-indent", "text-justify", "text-orientation",
    "text-outline", "text-overflow", "text-rendering", "text-shadow",
    "text-size-adjust", "text-space-collapse", "text-transform",
    "text-underline-position", "text-wrap", "top", "touch-action", "transform", "transform-origin",
    "transform-style", "transition", "transition-delay", "transition-duration",
    "transition-property", "transition-timing-function", "translate",
    "unicode-bidi", "user-select", "vertical-align", "visibility", "voice-balance",
    "voice-duration", "voice-family", "voice-pitch", "voice-range", "voice-rate",
    "voice-stress", "voice-volume", "volume", "white-space", "widows", "width",
    "will-change", "word-break", "word-spacing", "word-wrap", "writing-mode", "z-index",
    // SVG-specific
    "clip-path", "clip-rule", "mask", "enable-background", "filter", "flood-color",
    "flood-opacity", "lighting-color", "stop-color", "stop-opacity", "pointer-events",
    "color-interpolation", "color-interpolation-filters",
    "color-rendering", "fill", "fill-opacity", "fill-rule", "image-rendering",
    "marker", "marker-end", "marker-mid", "marker-start", "paint-order", "shape-rendering", "stroke",
    "stroke-dasharray", "stroke-dashoffset", "stroke-linecap", "stroke-linejoin",
    "stroke-miterlimit", "stroke-opacity", "stroke-width", "text-rendering",
    "baseline-shift", "dominant-baseline", "glyph-orientation-horizontal",
    "glyph-orientation-vertical", "text-anchor", "writing-mode",
  ], propertyKeywords = keySet(propertyKeywords_);

  var nonStandardPropertyKeywords_ = [
    "accent-color", "aspect-ratio", "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-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", "content-visibility", "margin-block",
    "margin-block-end", "margin-block-start", "margin-inline", "margin-inline-end",
    "margin-inline-start", "overflow-anchor", "overscroll-behavior", "padding-block", "padding-block-end",
    "padding-block-start", "padding-inline", "padding-inline-end",
    "padding-inline-start", "scroll-snap-stop", "scrollbar-3d-light-color",
    "scrollbar-arrow-color", "scrollbar-base-color", "scrollbar-dark-shadow-color",
    "scrollbar-face-color", "scrollbar-highlight-color", "scrollbar-shadow-color",
    "scrollbar-track-color", "searchfield-cancel-button", "searchfield-decoration",
    "searchfield-results-button", "searchfield-results-decoration", "shape-inside", "zoom"
  ], nonStandardPropertyKeywords = keySet(nonStandardPropertyKeywords_);

  var fontProperties_ = [
    "font-display", "font-family", "src", "unicode-range", "font-variant",
     "font-feature-settings", "font-stretch", "font-weight", "font-style"
  ], fontProperties = keySet(fontProperties_);

  var counterDescriptors_ = [
    "additive-symbols", "fallback", "negative", "pad", "prefix", "range",
    "speak-as", "suffix", "symbols", "system"
  ], counterDescriptors = keySet(counterDescriptors_);

  var colorKeywords_ = [
    "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", "grey", "green", "greenyellow", "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"
  ], colorKeywords = keySet(colorKeywords_);

  var valueKeywords_ = [
    "above", "absolute", "activeborder", "additive", "activecaption", "afar",
    "after-white-space", "ahead", "alias", "all", "all-scroll", "alphabetic", "alternate",
    "always", "amharic", "amharic-abegede", "antialiased", "appworkspace",
    "arabic-indic", "armenian", "asterisks", "attr", "auto", "auto-flow", "avoid", "avoid-column", "avoid-page",
    "avoid-region", "axis-pan", "background", "backwards", "baseline", "below", "bidi-override", "binary",
    "bengali", "blink", "block", "block-axis", "blur", "bold", "bolder", "border", "border-box",
    "both", "bottom", "break", "break-all", "break-word", "brightness", "bullets", "button",
    "buttonface", "buttonhighlight", "buttonshadow", "buttontext", "calc", "cambodian",
    "capitalize", "caps-lock-indicator", "caption", "captiontext", "caret",
    "cell", "center", "checkbox", "circle", "cjk-decimal", "cjk-earthly-branch",
    "cjk-heavenly-stem", "cjk-ideographic", "clear", "clip", "close-quote",
    "col-resize", "collapse", "color", "color-burn", "color-dodge", "column", "column-reverse",
    "compact", "condensed", "conic-gradient", "contain", "content", "contents",
    "content-box", "context-menu", "continuous", "contrast", "copy", "counter", "counters", "cover", "crop",
    "cross", "crosshair", "cubic-bezier", "currentcolor", "cursive", "cyclic", "darken", "dashed", "decimal",
    "decimal-leading-zero", "default", "default-button", "dense", "destination-atop",
    "destination-in", "destination-out", "destination-over", "devanagari", "difference",
    "disc", "discard", "disclosure-closed", "disclosure-open", "document",
    "dot-dash", "dot-dot-dash",
    "dotted", "double", "down", "drop-shadow", "e-resize", "ease", "ease-in", "ease-in-out", "ease-out",
    "element", "ellipse", "ellipsis", "embed", "end", "ethiopic", "ethiopic-abegede",
    "ethiopic-abegede-am-et", "ethiopic-abegede-gez", "ethiopic-abegede-ti-er",
    "ethiopic-abegede-ti-et", "ethiopic-halehame-aa-er",
    "ethiopic-halehame-aa-et", "ethiopic-halehame-am-et",
    "ethiopic-halehame-gez", "ethiopic-halehame-om-et",
    "ethiopic-halehame-sid-et", "ethiopic-halehame-so-et",
    "ethiopic-halehame-ti-er", "ethiopic-halehame-ti-et", "ethiopic-halehame-tig",
    "ethiopic-numeric", "ew-resize", "exclusion", "expanded", "extends", "extra-condensed",
    "extra-expanded", "fantasy", "fast", "fill", "fill-box", "fixed", "flat", "flex", "flex-end", "flex-start", "footnotes",
    "forwards", "from", "geometricPrecision", "georgian", "grayscale", "graytext", "grid", "groove",
    "gujarati", "gurmukhi", "hand", "hangul", "hangul-consonant", "hard-light", "hebrew",
    "help", "hidden", "hide", "higher", "highlight", "highlighttext",
    "hiragana", "hiragana-iroha", "horizontal", "hsl", "hsla", "hue", "hue-rotate", "icon", "ignore",
    "inactiveborder", "inactivecaption", "inactivecaptiontext", "infinite",
    "infobackground", "infotext", "inherit", "initial", "inline", "inline-axis",
    "inline-block", "inline-flex", "inline-grid", "inline-table", "inset", "inside", "intrinsic", "invert",
    "italic", "japanese-formal", "japanese-informal", "justify", "kannada",
    "katakana", "katakana-iroha", "keep-all", "khmer",
    "korean-hangul-formal", "korean-hanja-formal", "korean-hanja-informal",
    "landscape", "lao", "large", "larger", "left", "level", "lighter", "lighten",
    "line-through", "linear", "linear-gradient", "lines", "list-item", "listbox", "listitem",
    "local", "logical", "loud", "lower", "lower-alpha", "lower-armenian",
    "lower-greek", "lower-hexadecimal", "lower-latin", "lower-norwegian",
    "lower-roman", "lowercase", "ltr", "luminosity", "malayalam", "manipulation", "match", "matrix", "matrix3d",
    "media-play-button", "media-slider", "media-sliderthumb",
    "media-volume-slider", "media-volume-sliderthumb", "medium",
    "menu", "menulist", "menulist-button",
    "menutext", "message-box", "middle", "min-intrinsic",
    "mix", "mongolian", "monospace", "move", "multiple", "multiple_mask_images", "multiply", "myanmar", "n-resize",
    "narrower", "ne-resize", "nesw-resize", "no-close-quote", "no-drop",
    "no-open-quote", "no-repeat", "none", "normal", "not-allowed", "nowrap",
    "ns-resize", "numbers", "numeric", "nw-resize", "nwse-resize", "oblique", "octal", "opacity", "open-quote",
    "optimizeLegibility", "optimizeSpeed", "oriya", "oromo", "outset",
    "outside", "outside-shape", "overlay", "overline", "padding", "padding-box",
    "painted", "page", "paused", "persian", "perspective", "pinch-zoom", "plus-darker", "plus-lighter",
    "pointer", "polygon", "portrait", "pre", "pre-line", "pre-wrap", "preserve-3d",
    "progress", "push-button", "radial-gradient", "radio", "read-only",
    "read-write", "read-write-plaintext-only", "rectangle", "region",
    "relative", "repeat", "repeating-linear-gradient", "repeating-radial-gradient",
    "repeating-conic-gradient", "repeat-x", "repeat-y", "reset", "reverse",
    "rgb", "rgba", "ridge", "right", "rotate", "rotate3d", "rotateX", "rotateY",
    "rotateZ", "round", "row", "row-resize", "row-reverse", "rtl", "run-in", "running",
    "s-resize", "sans-serif", "saturate", "saturation", "scale", "scale3d", "scaleX", "scaleY", "scaleZ", "screen",
    "scroll", "scrollbar", "scroll-position", "se-resize", "searchfield",
    "searchfield-cancel-button", "searchfield-decoration",
    "searchfield-results-button", "searchfield-results-decoration", "self-start", "self-end",
    "semi-condensed", "semi-expanded", "separate", "sepia", "serif", "show", "sidama",
    "simp-chinese-formal", "simp-chinese-informal", "single",
    "skew", "skewX", "skewY", "skip-white-space", "slide", "slider-horizontal",
    "slider-vertical", "sliderthumb-horizontal", "sliderthumb-vertical", "slow",
    "small", "small-caps", "small-caption", "smaller", "soft-light", "solid", "somali",
    "source-atop", "source-in", "source-out", "source-over", "space", "space-around", "space-between", "space-evenly", "spell-out", "square",
    "square-button", "start", "static", "status-bar", "stretch", "stroke", "stroke-box", "sub",
    "subpixel-antialiased", "svg_masks", "super", "sw-resize", "symbolic", "symbols", "system-ui", "table",
    "table-caption", "table-cell", "table-column", "table-column-group",
    "table-footer-group", "table-header-group", "table-row", "table-row-group",
    "tamil",
    "telugu", "text", "text-bottom", "text-top", "textarea", "textfield", "thai",
    "thick", "thin", "threeddarkshadow", "threedface", "threedhighlight",
    "threedlightshadow", "threedshadow", "tibetan", "tigre", "tigrinya-er",
    "tigrinya-er-abegede", "tigrinya-et", "tigrinya-et-abegede", "to", "top",
    "trad-chinese-formal", "trad-chinese-informal", "transform",
    "translate", "translate3d", "translateX", "translateY", "translateZ",
    "transparent", "ultra-condensed", "ultra-expanded", "underline", "unidirectional-pan", "unset", "up",
    "upper-alpha", "upper-armenian", "upper-greek", "upper-hexadecimal",
    "upper-latin", "upper-norwegian", "upper-roman", "uppercase", "urdu", "url",
    "var", "vertical", "vertical-text", "view-box", "visible", "visibleFill", "visiblePainted",
    "visibleStroke", "visual", "w-resize", "wait", "wave", "wider",
    "window", "windowframe", "windowtext", "words", "wrap", "wrap-reverse", "x-large", "x-small", "xor",
    "xx-large", "xx-small"
  ], valueKeywords = keySet(valueKeywords_);

  var allWords = documentTypes_.concat(mediaTypes_).concat(mediaFeatures_).concat(mediaValueKeywords_)
    .concat(propertyKeywords_).concat(nonStandardPropertyKeywords_).concat(colorKeywords_)
    .concat(valueKeywords_);
  CodeMirror.registerHelper("hintWords", "css", allWords);

  function tokenCComment(stream, state) {
    var maybeEnd = false, ch;
    while ((ch = stream.next()) != null) {
      if (maybeEnd && ch == "/") {
        state.tokenize = null;
        break;
      }
      maybeEnd = (ch == "*");
    }
    return ["comment", "comment"];
  }

  CodeMirror.defineMIME("text/css", {
    documentTypes: documentTypes,
    mediaTypes: mediaTypes,
    mediaFeatures: mediaFeatures,
    mediaValueKeywords: mediaValueKeywords,
    propertyKeywords: propertyKeywords,
    nonStandardPropertyKeywords: nonStandardPropertyKeywords,
    fontProperties: fontProperties,
    counterDescriptors: counterDescriptors,
    colorKeywords: colorKeywords,
    valueKeywords: valueKeywords,
    tokenHooks: {
      "/": function(stream, state) {
        if (!stream.eat("*")) return false;
        state.tokenize = tokenCComment;
        return tokenCComment(stream, state);
      }
    },
    name: "css"
  });

  CodeMirror.defineMIME("text/x-scss", {
    mediaTypes: mediaTypes,
    mediaFeatures: mediaFeatures,
    mediaValueKeywords: mediaValueKeywords,
    propertyKeywords: propertyKeywords,
    nonStandardPropertyKeywords: nonStandardPropertyKeywords,
    colorKeywords: colorKeywords,
    valueKeywords: valueKeywords,
    fontProperties: fontProperties,
    allowNested: true,
    lineComment: "//",
    tokenHooks: {
      "/": function(stream, state) {
        if (stream.eat("/")) {
          stream.skipToEnd();
          return ["comment", "comment"];
        } else if (stream.eat("*")) {
          state.tokenize = tokenCComment;
          return tokenCComment(stream, state);
        } else {
          return ["operator", "operator"];
        }
      },
      ":": function(stream) {
        if (stream.match(/^\s*\{/, false))
          return [null, null]
        return false;
      },
      "$": function(stream) {
        stream.match(/^[\w-]+/);
        if (stream.match(/^\s*:/, false))
          return ["variable-2", "variable-definition"];
        return ["variable-2", "variable"];
      },
      "#": function(stream) {
        if (!stream.eat("{")) return false;
        return [null, "interpolation"];
      }
    },
    name: "css",
    helperType: "scss"
  });

  CodeMirror.defineMIME("text/x-less", {
    mediaTypes: mediaTypes,
    mediaFeatures: mediaFeatures,
    mediaValueKeywords: mediaValueKeywords,
    propertyKeywords: propertyKeywords,
    nonStandardPropertyKeywords: nonStandardPropertyKeywords,
    colorKeywords: colorKeywords,
    valueKeywords: valueKeywords,
    fontProperties: fontProperties,
    allowNested: true,
    lineComment: "//",
    tokenHooks: {
      "/": function(stream, state) {
        if (stream.eat("/")) {
          stream.skipToEnd();
          return ["comment", "comment"];
        } else if (stream.eat("*")) {
          state.tokenize = tokenCComment;
          return tokenCComment(stream, state);
        } else {
          return ["operator", "operator"];
        }
      },
      "@": function(stream) {
        if (stream.eat("{")) return [null, "interpolation"];
        if (stream.match(/^(charset|document|font-face|import|(-(moz|ms|o|webkit)-)?keyframes|media|namespace|page|supports)\b/i, false)) return false;
        stream.eatWhile(/[\w\\\-]/);
        if (stream.match(/^\s*:/, false))
          return ["variable-2", "variable-definition"];
        return ["variable-2", "variable"];
      },
      "&": function() {
        return ["atom", "atom"];
      }
    },
    name: "css",
    helperType: "less"
  });

  CodeMirror.defineMIME("text/x-gss", {
    documentTypes: documentTypes,
    mediaTypes: mediaTypes,
    mediaFeatures: mediaFeatures,
    propertyKeywords: propertyKeywords,
    nonStandardPropertyKeywords: nonStandardPropertyKeywords,
    fontProperties: fontProperties,
    counterDescriptors: counterDescriptors,
    colorKeywords: colorKeywords,
    valueKeywords: valueKeywords,
    supportsAtComponent: true,
    tokenHooks: {
      "/": function(stream, state) {
        if (!stream.eat("*")) return false;
        state.tokenize = tokenCComment;
        return tokenCComment(stream, state);
      }
    },
    name: "css",
    helperType: "gss"
  });

});