text: // CodeMirror, copyright (c) by Marijn Haverbeke and others
  // Distributed under an MIT license: https://codemirror.net/LICENSE
  
  // Slim Highlighting for CodeMirror copyright (c) HicknHack Software Gmbh
  
  (function (mod) {
      if (typeof exports == "object" && typeof module == "object") // CommonJS
          mod(require("../../lib/codemirror"), require("../htmlmixed/htmlmixed"), require("../ruby/ruby"));
      else if (typeof define == "function" && define.amd) // AMD
          define(["../../lib/codemirror", "../htmlmixed/htmlmixed", "../ruby/ruby"], mod);
      else // Plain browser env
          mod(CodeMirror);
  })(function (CodeMirror) {
      "use strict";
  
      CodeMirror.defineMode("slim", function (config) {
          var htmlMode = CodeMirror.getMode(config, {name: "htmlmixed"});
          var rubyMode = CodeMirror.getMode(config, "ruby");
          var modes = {html: htmlMode, ruby: rubyMode};
          var embedded = {
              ruby: "ruby",
              javascript: "javascript",
              css: "text/css",
              sass: "text/x-sass",
              scss: "text/x-scss",
              less: "text/x-less",
              styl: "text/x-styl", // no highlighting so far
              coffee: "coffeescript",
              asciidoc: "text/x-asciidoc",
              markdown: "text/x-markdown",
              textile: "text/x-textile", // no highlighting so far
              creole: "text/x-creole", // no highlighting so far
              wiki: "text/x-wiki", // no highlighting so far
              mediawiki: "text/x-mediawiki", // no highlighting so far
              rdoc: "text/x-rdoc", // no highlighting so far
              builder: "text/x-builder", // no highlighting so far
              nokogiri: "text/x-nokogiri", // no highlighting so far
              erb: "application/x-erb"
          };
          var embeddedRegexp = function (map) {
              var arr = [];
              for (var key in map) arr.push(key);
              return new RegExp("^(" + arr.join('|') + "):");
          }(embedded);
  
          var styleMap = {
              "commentLine": "comment",
              "slimSwitch": "operator special",
              "slimTag": "tag",
              "slimId": "attribute def",
              "slimClass": "attribute qualifier",
              "slimAttribute": "attribute",
              "slimSubmode": "keyword special",
              "closeAttributeTag": null,
              "slimDoctype": null,
              "lineContinuation": null
          };
          var closing = {
              "{": "}",
              "[": "]",
              "(": ")"
          };
  
          var nameStartChar = "_a-zA-Z\xC0-\xD6\xD8-\xF6\xF8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD";
          var nameChar = nameStartChar + "\\-0-9\xB7\u0300-\u036F\u203F-\u2040";
          var nameRegexp = new RegExp("^[:" + nameStartChar + "](?::[" + nameChar + "]|[" + nameChar + "]*)");
          var attributeNameRegexp = new RegExp("^[:" + nameStartChar + "][:\\." + nameChar + "]*(?=\\s*=)");
          var wrappedAttributeNameRegexp = new RegExp("^[:" + nameStartChar + "][:\\." + nameChar + "]*");
          var classNameRegexp = /^\.-?[_a-zA-Z]+[\w\-]*/;
          var classIdRegexp = /^#[_a-zA-Z]+[\w\-]*/;
  
          function backup(pos, tokenize, style) {
              var restore = function (stream, state) {
                  state.tokenize = tokenize;
                  if (stream.pos < pos) {
                      stream.pos = pos;
                      return style;
                  }
                  return state.tokenize(stream, state);
              };
              return function (stream, state) {
                  state.tokenize = restore;
                  return tokenize(stream, state);
              };
          }
  
          function maybeBackup(stream, state, pat, offset, style) {
              var cur = stream.current();
              var idx = cur.search(pat);
              if (idx > -1) {
                  state.tokenize = backup(stream.pos, state.tokenize, style);
                  stream.backUp(cur.length - idx - offset);
              }
              return style;
          }
  
          function continueLine(state, column) {
              state.stack = {
                  parent: state.stack,
                  style: "continuation",
                  indented: column,
                  tokenize: state.line
              };
              state.line = state.tokenize;
          }
  
          function finishContinue(state) {
              if (state.line == state.tokenize) {
                  state.line = state.stack.tokenize;
                  state.stack = state.stack.parent;
              }
          }
  
          function lineContinuable(column, tokenize) {
              return function (stream, state) {
                  finishContinue(state);
                  if (stream.match(/^\\$/)) {
                      continueLine(state, column);
                      return "lineContinuation";
                  }
                  var style = tokenize(stream, state);
                  if (stream.eol() && stream.current().match(/(?:^|[^\\])(?:\\\\)*\\$/)) {
                      stream.backUp(1);
                  }
                  return style;
              };
          }
  
          function commaContinuable(column, tokenize) {
              return function (stream, state) {
                  finishContinue(state);
                  var style = tokenize(stream, state);
                  if (stream.eol() && stream.current().match(/,$/)) {
                      continueLine(state, column);
                  }
                  return style;
              };
          }
  
          function rubyInQuote(endQuote, tokenize) {
              // TODO: add multi line support
              return function (stream, state) {
                  var ch = stream.peek();
                  if (ch == endQuote && state.rubyState.tokenize.length == 1) {
                      // step out of ruby context as it seems to complete processing all the braces
                      stream.next();
                      state.tokenize = tokenize;
                      return "closeAttributeTag";
                  } else {
                      return ruby(stream, state);
                  }
              };
          }
  
          function startRubySplat(tokenize) {
              var rubyState;
              var runSplat = function (stream, state) {
                  if (state.rubyState.tokenize.length == 1 && !state.rubyState.context.prev) {
                      stream.backUp(1);
                      if (stream.eatSpace()) {
                          state.rubyState = rubyState;
                          state.tokenize = tokenize;
                          return tokenize(stream, state);
                      }
                      stream.next();
                  }
                  return ruby(stream, state);
              };
              return function (stream, state) {
                  rubyState = state.rubyState;
                  state.rubyState = CodeMirror.startState(rubyMode);
                  state.tokenize = runSplat;
                  return ruby(stream, state);
              };
          }
  
          function ruby(stream, state) {
              return rubyMode.token(stream, state.rubyState);
          }
  
          function htmlLine(stream, state) {
              if (stream.match(/^\\$/)) {
                  return "lineContinuation";
              }
              return html(stream, state);
          }
  
          function html(stream, state) {
              if (stream.match(/^#\{/)) {
                  state.tokenize = rubyInQuote("}", state.tokenize);
                  return null;
              }
              return maybeBackup(stream, state, /[^\\]#\{/, 1, htmlMode.token(stream, state.htmlState));
          }
  
          function startHtmlLine(lastTokenize) {
              return function (stream, state) {
                  var style = htmlLine(stream, state);
                  if (stream.eol()) state.tokenize = lastTokenize;
                  return style;
              };
          }
  
          function startHtmlMode(stream, state, offset) {
              state.stack = {
                  parent: state.stack,
                  style: "html",
                  indented: stream.column() + offset, // pipe + space
                  tokenize: state.line
              };
              state.line = state.tokenize = html;
              return null;
          }
  
          function comment(stream, state) {
              stream.skipToEnd();
              return state.stack.style;
          }
  
          function commentMode(stream, state) {
              state.stack = {
                  parent: state.stack,
                  style: "comment",
                  indented: state.indented + 1,
                  tokenize: state.line
              };
              state.line = comment;
              return comment(stream, state);
          }
  
          function attributeWrapper(stream, state) {
              if (stream.eat(state.stack.endQuote)) {
                  state.line = state.stack.line;
                  state.tokenize = state.stack.tokenize;
                  state.stack = state.stack.parent;
                  return null;
              }
              if (stream.match(wrappedAttributeNameRegexp)) {
                  state.tokenize = attributeWrapperAssign;
                  return "slimAttribute";
              }
              stream.next();
              return null;
          }
  
          function attributeWrapperAssign(stream, state) {
              if (stream.match(/^==?/)) {
                  state.tokenize = attributeWrapperValue;
                  return null;
              }
              return attributeWrapper(stream, state);
          }
  
          function attributeWrapperValue(stream, state) {
              var ch = stream.peek();
              if (ch == '"' || ch == "\'") {
                  state.tokenize = readQuoted(ch, "string", true, false, attributeWrapper);
                  stream.next();
                  return state.tokenize(stream, state);
              }
              if (ch == '[') {
                  return startRubySplat(attributeWrapper)(stream, state);
              }
              if (stream.match(/^(true|false|nil)\b/)) {
                  state.tokenize = attributeWrapper;
                  return "keyword";
              }
              return startRubySplat(attributeWrapper)(stream, state);
          }
  
          function startAttributeWrapperMode(state, endQuote, tokenize) {
              state.stack = {
                  parent: state.stack,
                  style: "wrapper",
                  indented: state.indented + 1,
                  tokenize: tokenize,
                  line: state.line,
                  endQuote: endQuote
              };
              state.line = state.tokenize = attributeWrapper;
              return null;
          }
  
          function sub(stream, state) {
              if (stream.match(/^#\{/)) {
                  state.tokenize = rubyInQuote("}", state.tokenize);
                  return null;
              }
              var subStream = new CodeMirror.StringStream(stream.string.slice(state.stack.indented), stream.tabSize);
              subStream.pos = stream.pos - state.stack.indented;
              subStream.start = stream.start - state.stack.indented;
              subStream.lastColumnPos = stream.lastColumnPos - state.stack.indented;
              subStream.lastColumnValue = stream.lastColumnValue - state.stack.indented;
              var style = state.subMode.token(subStream, state.subState);
              stream.pos = subStream.pos + state.stack.indented;
              return style;
          }
  
          function firstSub(stream, state) {
              state.stack.indented = stream.column();
              state.line = state.tokenize = sub;
              return state.tokenize(stream, state);
          }
  
          function createMode(mode) {
              var query = embedded[mode];
              var spec = CodeMirror.mimeModes[query];
              if (spec) {
                  return CodeMirror.getMode(config, spec);
              }
              var factory = CodeMirror.modes[query];
              if (factory) {
                  return factory(config, {name: query});
              }
              return CodeMirror.getMode(config, "null");
          }
  
          function getMode(mode) {
              if (!modes.hasOwnProperty(mode)) {
                  return modes[mode] = createMode(mode);
              }
              return modes[mode];
          }
  
          function startSubMode(mode, state) {
              var subMode = getMode(mode);
              var subState = CodeMirror.startState(subMode);
  
              state.subMode = subMode;
              state.subState = subState;
  
              state.stack = {
                  parent: state.stack,
                  style: "sub",
                  indented: state.indented + 1,
                  tokenize: state.line
              };
              state.line = state.tokenize = firstSub;
              return "slimSubmode";
          }
  
          function doctypeLine(stream, _state) {
              stream.skipToEnd();
              return "slimDoctype";
          }
  
          function startLine(stream, state) {
              var ch = stream.peek();
              if (ch == '<') {
                  return (state.tokenize = startHtmlLine(state.tokenize))(stream, state);
              }
              if (stream.match(/^[|']/)) {
                  return startHtmlMode(stream, state, 1);
              }
              if (stream.match(/^\/(!|\[\w+])?/)) {
                  return commentMode(stream, state);
              }
              if (stream.match(/^(-|==?[<>]?)/)) {
                  state.tokenize = lineContinuable(stream.column(), commaContinuable(stream.column(), ruby));
                  return "slimSwitch";
              }
              if (stream.match(/^doctype\b/)) {
                  state.tokenize = doctypeLine;
                  return "keyword";
              }
  
              var m = stream.match(embeddedRegexp);
              if (m) {
                  return startSubMode(m[1], state);
              }
  
              return slimTag(stream, state);
          }
  
          function slim(stream, state) {
              if (state.startOfLine) {
                  return startLine(stream, state);
              }
              return slimTag(stream, state);
          }
  
          function slimTag(stream, state) {
              if (stream.eat('*')) {
                  state.tokenize = startRubySplat(slimTagExtras);
                  return null;
              }
              if (stream.match(nameRegexp)) {
                  state.tokenize = slimTagExtras;
                  return "slimTag";
              }
              return slimClass(stream, state);
          }
  
          function slimTagExtras(stream, state) {
              if (stream.match(/^(<>?|><?)/)) {
                  state.tokenize = slimClass;
                  return null;
              }
              return slimClass(stream, state);
          }
  
          function slimClass(stream, state) {
              if (stream.match(classIdRegexp)) {
                  state.tokenize = slimClass;
                  return "slimId";
              }
              if (stream.match(classNameRegexp)) {
                  state.tokenize = slimClass;
                  return "slimClass";
              }
              return slimAttribute(stream, state);
          }
  
          function slimAttribute(stream, state) {
              if (stream.match(/^([\[\{\(])/)) {
                  return startAttributeWrapperMode(state, closing[RegExp.$1], slimAttribute);
              }
              if (stream.match(attributeNameRegexp)) {
                  state.tokenize = slimAttributeAssign;
                  return "slimAttribute";
              }
              if (stream.peek() == '*') {
                  stream.next();
                  state.tokenize = startRubySplat(slimContent);
                  return null;
              }
              return slimContent(stream, state);
          }
  
          function slimAttributeAssign(stream, state) {
              if (stream.match(/^==?/)) {
                  state.tokenize = slimAttributeValue;
                  return null;
              }
              // should never happen, because of forward lookup
              return slimAttribute(stream, state);
          }
  
          function slimAttributeValue(stream, state) {
              var ch = stream.peek();
              if (ch == '"' || ch == "\'") {
                  state.tokenize = readQuoted(ch, "string", true, false, slimAttribute);
                  stream.next();
                  return state.tokenize(stream, state);
              }
              if (ch == '[') {
                  return startRubySplat(slimAttribute)(stream, state);
              }
              if (ch == ':') {
                  return startRubySplat(slimAttributeSymbols)(stream, state);
              }
              if (stream.match(/^(true|false|nil)\b/)) {
                  state.tokenize = slimAttribute;
                  return "keyword";
              }
              return startRubySplat(slimAttribute)(stream, state);
          }
  
          function slimAttributeSymbols(stream, state) {
              stream.backUp(1);
              if (stream.match(/^[^\s],(?=:)/)) {
                  state.tokenize = startRubySplat(slimAttributeSymbols);
                  return null;
              }
              stream.next();
              return slimAttribute(stream, state);
          }
  
          function readQuoted(quote, style, embed, unescaped, nextTokenize) {
              return function (stream, state) {
                  finishContinue(state);
                  var fresh = stream.current().length == 0;
                  if (stream.match(/^\\$/, fresh)) {
                      if (!fresh) return style;
                      continueLine(state, state.indented);
                      return "lineContinuation";
                  }
                  if (stream.match(/^#\{/, fresh)) {
                      if (!fresh) return style;
                      state.tokenize = rubyInQuote("}", state.tokenize);
                      return null;
                  }
                  var escaped = false, ch;
                  while ((ch = stream.next()) != null) {
                      if (ch == quote && (unescaped || !escaped)) {
                          state.tokenize = nextTokenize;
                          break;
                      }
                      if (embed && ch == "#" && !escaped) {
                          if (stream.eat("{")) {
                              stream.backUp(2);
                              break;
                          }
                      }
                      escaped = !escaped && ch == "\\";
                  }
                  if (stream.eol() && escaped) {
                      stream.backUp(1);
                  }
                  return style;
              };
          }
  
          function slimContent(stream, state) {
              if (stream.match(/^==?/)) {
                  state.tokenize = ruby;
                  return "slimSwitch";
              }
              if (stream.match(/^\/$/)) { // tag close hint
                  state.tokenize = slim;
                  return null;
              }
              if (stream.match(/^:/)) { // inline tag
                  state.tokenize = slimTag;
                  return "slimSwitch";
              }
              startHtmlMode(stream, state, 0);
              return state.tokenize(stream, state);
          }
  
          var mode = {
              // default to html mode
              startState: function () {
                  var htmlState = CodeMirror.startState(htmlMode);
                  var rubyState = CodeMirror.startState(rubyMode);
                  return {
                      htmlState: htmlState,
                      rubyState: rubyState,
                      stack: null,
                      last: null,
                      tokenize: slim,
                      line: slim,
                      indented: 0
                  };
              },
  
              copyState: function (state) {
                  return {
                      htmlState: CodeMirror.copyState(htmlMode, state.htmlState),
                      rubyState: CodeMirror.copyState(rubyMode, state.rubyState),
                      subMode: state.subMode,
                      subState: state.subMode && CodeMirror.copyState(state.subMode, state.subState),
                      stack: state.stack,
                      last: state.last,
                      tokenize: state.tokenize,
                      line: state.line
                  };
              },
  
              token: function (stream, state) {
                  if (stream.sol()) {
                      state.indented = stream.indentation();
                      state.startOfLine = true;
                      state.tokenize = state.line;
                      while (state.stack && state.stack.indented > state.indented && state.last != "slimSubmode") {
                          state.line = state.tokenize = state.stack.tokenize;
                          state.stack = state.stack.parent;
                          state.subMode = null;
                          state.subState = null;
                      }
                  }
                  if (stream.eatSpace()) return null;
                  var style = state.tokenize(stream, state);
                  state.startOfLine = false;
                  if (style) state.last = style;
                  return styleMap.hasOwnProperty(style) ? styleMap[style] : style;
              },
  
              blankLine: function (state) {
                  if (state.subMode && state.subMode.blankLine) {
                      return state.subMode.blankLine(state.subState);
                  }
              },
  
              innerMode: function (state) {
                  if (state.subMode) return {state: state.subState, mode: state.subMode};
                  return {state: state, mode: mode};
              }
  
              //indent: function(state) {
              //  return state.indented;
              //}
          };
          return mode;
      }, "htmlmixed", "ruby");
  
      CodeMirror.defineMIME("text/x-slim", "slim");
      CodeMirror.defineMIME("application/x-slim", "slim");
  });
  