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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"));
   7    else if (typeof define == "function" && define.amd) // AMD
   8      define(["../../lib/codemirror"], mod);
   9    else // Plain browser env
  10      mod(CodeMirror);
  11  })(function(CodeMirror) {
  12  "use strict";
  13  
  14  CodeMirror.defineMode("d", function(config, parserConfig) {
  15    var indentUnit = config.indentUnit,
  16        statementIndentUnit = parserConfig.statementIndentUnit || indentUnit,
  17        keywords = parserConfig.keywords || {},
  18        builtin = parserConfig.builtin || {},
  19        blockKeywords = parserConfig.blockKeywords || {},
  20        atoms = parserConfig.atoms || {},
  21        hooks = parserConfig.hooks || {},
  22        multiLineStrings = parserConfig.multiLineStrings;
  23    var isOperatorChar = /[+\-*&%=<>!?|\/]/;
  24  
  25    var curPunc;
  26  
  27    function tokenBase(stream, state) {
  28      var ch = stream.next();
  29      if (hooks[ch]) {
  30        var result = hooks[ch](stream, state);
  31        if (result !== false) return result;
  32      }
  33      if (ch == '"' || ch == "'" || ch == "`") {
  34        state.tokenize = tokenString(ch);
  35        return state.tokenize(stream, state);
  36      }
  37      if (/[\[\]{}\(\),;\:\.]/.test(ch)) {
  38        curPunc = ch;
  39        return null;
  40      }
  41      if (/\d/.test(ch)) {
  42        stream.eatWhile(/[\w\.]/);
  43        return "number";
  44      }
  45      if (ch == "/") {
  46        if (stream.eat("+")) {
  47          state.tokenize = tokenNestedComment;
  48          return tokenNestedComment(stream, state);
  49        }
  50        if (stream.eat("*")) {
  51          state.tokenize = tokenComment;
  52          return tokenComment(stream, state);
  53        }
  54        if (stream.eat("/")) {
  55          stream.skipToEnd();
  56          return "comment";
  57        }
  58      }
  59      if (isOperatorChar.test(ch)) {
  60        stream.eatWhile(isOperatorChar);
  61        return "operator";
  62      }
  63      stream.eatWhile(/[\w\$_\xa1-\uffff]/);
  64      var cur = stream.current();
  65      if (keywords.propertyIsEnumerable(cur)) {
  66        if (blockKeywords.propertyIsEnumerable(cur)) curPunc = "newstatement";
  67        return "keyword";
  68      }
  69      if (builtin.propertyIsEnumerable(cur)) {
  70        if (blockKeywords.propertyIsEnumerable(cur)) curPunc = "newstatement";
  71        return "builtin";
  72      }
  73      if (atoms.propertyIsEnumerable(cur)) return "atom";
  74      return "variable";
  75    }
  76  
  77    function tokenString(quote) {
  78      return function(stream, state) {
  79        var escaped = false, next, end = false;
  80        while ((next = stream.next()) != null) {
  81          if (next == quote && !escaped) {end = true; break;}
  82          escaped = !escaped && next == "\\";
  83        }
  84        if (end || !(escaped || multiLineStrings))
  85          state.tokenize = null;
  86        return "string";
  87      };
  88    }
  89  
  90    function tokenComment(stream, state) {
  91      var maybeEnd = false, ch;
  92      while (ch = stream.next()) {
  93        if (ch == "/" && maybeEnd) {
  94          state.tokenize = null;
  95          break;
  96        }
  97        maybeEnd = (ch == "*");
  98      }
  99      return "comment";
 100    }
 101  
 102    function tokenNestedComment(stream, state) {
 103      var maybeEnd = false, ch;
 104      while (ch = stream.next()) {
 105        if (ch == "/" && maybeEnd) {
 106          state.tokenize = null;
 107          break;
 108        }
 109        maybeEnd = (ch == "+");
 110      }
 111      return "comment";
 112    }
 113  
 114    function Context(indented, column, type, align, prev) {
 115      this.indented = indented;
 116      this.column = column;
 117      this.type = type;
 118      this.align = align;
 119      this.prev = prev;
 120    }
 121    function pushContext(state, col, type) {
 122      var indent = state.indented;
 123      if (state.context && state.context.type == "statement")
 124        indent = state.context.indented;
 125      return state.context = new Context(indent, col, type, null, state.context);
 126    }
 127    function popContext(state) {
 128      var t = state.context.type;
 129      if (t == ")" || t == "]" || t == "}")
 130        state.indented = state.context.indented;
 131      return state.context = state.context.prev;
 132    }
 133  
 134    // Interface
 135  
 136    return {
 137      startState: function(basecolumn) {
 138        return {
 139          tokenize: null,
 140          context: new Context((basecolumn || 0) - indentUnit, 0, "top", false),
 141          indented: 0,
 142          startOfLine: true
 143        };
 144      },
 145  
 146      token: function(stream, state) {
 147        var ctx = state.context;
 148        if (stream.sol()) {
 149          if (ctx.align == null) ctx.align = false;
 150          state.indented = stream.indentation();
 151          state.startOfLine = true;
 152        }
 153        if (stream.eatSpace()) return null;
 154        curPunc = null;
 155        var style = (state.tokenize || tokenBase)(stream, state);
 156        if (style == "comment" || style == "meta") return style;
 157        if (ctx.align == null) ctx.align = true;
 158  
 159        if ((curPunc == ";" || curPunc == ":" || curPunc == ",") && ctx.type == "statement") popContext(state);
 160        else if (curPunc == "{") pushContext(state, stream.column(), "}");
 161        else if (curPunc == "[") pushContext(state, stream.column(), "]");
 162        else if (curPunc == "(") pushContext(state, stream.column(), ")");
 163        else if (curPunc == "}") {
 164          while (ctx.type == "statement") ctx = popContext(state);
 165          if (ctx.type == "}") ctx = popContext(state);
 166          while (ctx.type == "statement") ctx = popContext(state);
 167        }
 168        else if (curPunc == ctx.type) popContext(state);
 169        else if (((ctx.type == "}" || ctx.type == "top") && curPunc != ';') || (ctx.type == "statement" && curPunc == "newstatement"))
 170          pushContext(state, stream.column(), "statement");
 171        state.startOfLine = false;
 172        return style;
 173      },
 174  
 175      indent: function(state, textAfter) {
 176        if (state.tokenize != tokenBase && state.tokenize != null) return CodeMirror.Pass;
 177        var ctx = state.context, firstChar = textAfter && textAfter.charAt(0);
 178        if (ctx.type == "statement" && firstChar == "}") ctx = ctx.prev;
 179        var closing = firstChar == ctx.type;
 180        if (ctx.type == "statement") return ctx.indented + (firstChar == "{" ? 0 : statementIndentUnit);
 181        else if (ctx.align) return ctx.column + (closing ? 0 : 1);
 182        else return ctx.indented + (closing ? 0 : indentUnit);
 183      },
 184  
 185      electricChars: "{}",
 186      blockCommentStart: "/*",
 187      blockCommentEnd: "*/",
 188      blockCommentContinue: " * ",
 189      lineComment: "//",
 190      fold: "brace"
 191    };
 192  });
 193  
 194    function words(str) {
 195      var obj = {}, words = str.split(" ");
 196      for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
 197      return obj;
 198    }
 199  
 200    var blockKeywords = "body catch class do else enum for foreach foreach_reverse if in interface mixin " +
 201                        "out scope struct switch try union unittest version while with";
 202  
 203    CodeMirror.defineMIME("text/x-d", {
 204      name: "d",
 205      keywords: words("abstract alias align asm assert auto break case cast cdouble cent cfloat const continue " +
 206                      "debug default delegate delete deprecated export extern final finally function goto immutable " +
 207                      "import inout invariant is lazy macro module new nothrow override package pragma private " +
 208                      "protected public pure ref return shared short static super synchronized template this " +
 209                      "throw typedef typeid typeof volatile __FILE__ __LINE__ __gshared __traits __vector __parameters " +
 210                      blockKeywords),
 211      blockKeywords: words(blockKeywords),
 212      builtin: words("bool byte char creal dchar double float idouble ifloat int ireal long real short ubyte " +
 213                     "ucent uint ulong ushort wchar wstring void size_t sizediff_t"),
 214      atoms: words("exit failure success true false null"),
 215      hooks: {
 216        "@": function(stream, _state) {
 217          stream.eatWhile(/[\w\$_]/);
 218          return "meta";
 219        }
 220      }
 221    });
 222  
 223  });