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   1  // CodeMirror, copyright (c) by Marijn Haverbeke and others
   2  // Distributed under an MIT license: https://codemirror.net/5/LICENSE
   3  
   4  (function(mod) {
   5    if (typeof exports == "object" && typeof module == "object") // CommonJS
   6      mod(require("../../lib/codemirror"), require("../htmlmixed/htmlmixed"), require("../ruby/ruby"));
   7    else if (typeof define == "function" && define.amd) // AMD
   8      define(["../../lib/codemirror", "../htmlmixed/htmlmixed", "../ruby/ruby"], mod);
   9    else // Plain browser env
  10      mod(CodeMirror);
  11  })(function(CodeMirror) {
  12  "use strict";
  13  
  14    // full haml mode. This handled embedded ruby and html fragments too
  15    CodeMirror.defineMode("haml", function(config) {
  16      var htmlMode = CodeMirror.getMode(config, {name: "htmlmixed"});
  17      var rubyMode = CodeMirror.getMode(config, "ruby");
  18  
  19      function rubyInQuote(endQuote) {
  20        return function(stream, state) {
  21          var ch = stream.peek();
  22          if (ch == endQuote && state.rubyState.tokenize.length == 1) {
  23            // step out of ruby context as it seems to complete processing all the braces
  24            stream.next();
  25            state.tokenize = html;
  26            return "closeAttributeTag";
  27          } else {
  28            return ruby(stream, state);
  29          }
  30        };
  31      }
  32  
  33      function ruby(stream, state) {
  34        if (stream.match("-#")) {
  35          stream.skipToEnd();
  36          return "comment";
  37        }
  38        return rubyMode.token(stream, state.rubyState);
  39      }
  40  
  41      function html(stream, state) {
  42        var ch = stream.peek();
  43  
  44        // handle haml declarations. All declarations that cant be handled here
  45        // will be passed to html mode
  46        if (state.previousToken.style == "comment" ) {
  47          if (state.indented > state.previousToken.indented) {
  48            stream.skipToEnd();
  49            return "commentLine";
  50          }
  51        }
  52  
  53        if (state.startOfLine) {
  54          if (ch == "!" && stream.match("!!")) {
  55            stream.skipToEnd();
  56            return "tag";
  57          } else if (stream.match(/^%[\w:#\.]+=/)) {
  58            state.tokenize = ruby;
  59            return "hamlTag";
  60          } else if (stream.match(/^%[\w:]+/)) {
  61            return "hamlTag";
  62          } else if (ch == "/" ) {
  63            stream.skipToEnd();
  64            return "comment";
  65          }
  66        }
  67  
  68        if (state.startOfLine || state.previousToken.style == "hamlTag") {
  69          if ( ch == "#" || ch == ".") {
  70            stream.match(/[\w-#\.]*/);
  71            return "hamlAttribute";
  72          }
  73        }
  74  
  75        // do not handle --> as valid ruby, make it HTML close comment instead
  76        if (state.startOfLine && !stream.match("-->", false) && (ch == "=" || ch == "-" )) {
  77          state.tokenize = ruby;
  78          return state.tokenize(stream, state);
  79        }
  80  
  81        if (state.previousToken.style == "hamlTag" ||
  82            state.previousToken.style == "closeAttributeTag" ||
  83            state.previousToken.style == "hamlAttribute") {
  84          if (ch == "(") {
  85            state.tokenize = rubyInQuote(")");
  86            return state.tokenize(stream, state);
  87          } else if (ch == "{") {
  88            if (!stream.match(/^\{%.*/)) {
  89              state.tokenize = rubyInQuote("}");
  90              return state.tokenize(stream, state);
  91            }
  92          }
  93        }
  94  
  95        return htmlMode.token(stream, state.htmlState);
  96      }
  97  
  98      return {
  99        // default to html mode
 100        startState: function() {
 101          var htmlState = CodeMirror.startState(htmlMode);
 102          var rubyState = CodeMirror.startState(rubyMode);
 103          return {
 104            htmlState: htmlState,
 105            rubyState: rubyState,
 106            indented: 0,
 107            previousToken: { style: null, indented: 0},
 108            tokenize: html
 109          };
 110        },
 111  
 112        copyState: function(state) {
 113          return {
 114            htmlState : CodeMirror.copyState(htmlMode, state.htmlState),
 115            rubyState: CodeMirror.copyState(rubyMode, state.rubyState),
 116            indented: state.indented,
 117            previousToken: state.previousToken,
 118            tokenize: state.tokenize
 119          };
 120        },
 121  
 122        token: function(stream, state) {
 123          if (stream.sol()) {
 124            state.indented = stream.indentation();
 125            state.startOfLine = true;
 126          }
 127          if (stream.eatSpace()) return null;
 128          var style = state.tokenize(stream, state);
 129          state.startOfLine = false;
 130          // dont record comment line as we only want to measure comment line with
 131          // the opening comment block
 132          if (style && style != "commentLine") {
 133            state.previousToken = { style: style, indented: state.indented };
 134          }
 135          // if current state is ruby and the previous token is not `,` reset the
 136          // tokenize to html
 137          if (stream.eol() && state.tokenize == ruby) {
 138            stream.backUp(1);
 139            var ch = stream.peek();
 140            stream.next();
 141            if (ch && ch != ",") {
 142              state.tokenize = html;
 143            }
 144          }
 145          // reprocess some of the specific style tag when finish setting previousToken
 146          if (style == "hamlTag") {
 147            style = "tag";
 148          } else if (style == "commentLine") {
 149            style = "comment";
 150          } else if (style == "hamlAttribute") {
 151            style = "attribute";
 152          } else if (style == "closeAttributeTag") {
 153            style = null;
 154          }
 155          return style;
 156        }
 157      };
 158    }, "htmlmixed", "ruby");
 159  
 160    CodeMirror.defineMIME("text/x-haml", "haml");
 161  });