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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("groovy", function(config) {
  15    function words(str) {
  16      var obj = {}, words = str.split(" ");
  17      for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
  18      return obj;
  19    }
  20    var keywords = words(
  21      "abstract as assert boolean break byte case catch char class const continue def default " +
  22      "do double else enum extends final finally float for goto if implements import in " +
  23      "instanceof int interface long native new package private protected public return " +
  24      "short static strictfp super switch synchronized threadsafe throw throws trait transient " +
  25      "try void volatile while");
  26    var blockKeywords = words("catch class def do else enum finally for if interface switch trait try while");
  27    var standaloneKeywords = words("return break continue");
  28    var atoms = words("null true false this");
  29  
  30    var curPunc;
  31    function tokenBase(stream, state) {
  32      var ch = stream.next();
  33      if (ch == '"' || ch == "'") {
  34        return startString(ch, stream, state);
  35      }
  36      if (/[\[\]{}\(\),;\:\.]/.test(ch)) {
  37        curPunc = ch;
  38        return null;
  39      }
  40      if (/\d/.test(ch)) {
  41        stream.eatWhile(/[\w\.]/);
  42        if (stream.eat(/eE/)) { stream.eat(/\+\-/); stream.eatWhile(/\d/); }
  43        return "number";
  44      }
  45      if (ch == "/") {
  46        if (stream.eat("*")) {
  47          state.tokenize.push(tokenComment);
  48          return tokenComment(stream, state);
  49        }
  50        if (stream.eat("/")) {
  51          stream.skipToEnd();
  52          return "comment";
  53        }
  54        if (expectExpression(state.lastToken, false)) {
  55          return startString(ch, stream, state);
  56        }
  57      }
  58      if (ch == "-" && stream.eat(">")) {
  59        curPunc = "->";
  60        return null;
  61      }
  62      if (/[+\-*&%=<>!?|\/~]/.test(ch)) {
  63        stream.eatWhile(/[+\-*&%=<>|~]/);
  64        return "operator";
  65      }
  66      stream.eatWhile(/[\w\$_]/);
  67      if (ch == "@") { stream.eatWhile(/[\w\$_\.]/); return "meta"; }
  68      if (state.lastToken == ".") return "property";
  69      if (stream.eat(":")) { curPunc = "proplabel"; return "property"; }
  70      var cur = stream.current();
  71      if (atoms.propertyIsEnumerable(cur)) { return "atom"; }
  72      if (keywords.propertyIsEnumerable(cur)) {
  73        if (blockKeywords.propertyIsEnumerable(cur)) curPunc = "newstatement";
  74        else if (standaloneKeywords.propertyIsEnumerable(cur)) curPunc = "standalone";
  75        return "keyword";
  76      }
  77      return "variable";
  78    }
  79    tokenBase.isBase = true;
  80  
  81    function startString(quote, stream, state) {
  82      var tripleQuoted = false;
  83      if (quote != "/" && stream.eat(quote)) {
  84        if (stream.eat(quote)) tripleQuoted = true;
  85        else return "string";
  86      }
  87      function t(stream, state) {
  88        var escaped = false, next, end = !tripleQuoted;
  89        while ((next = stream.next()) != null) {
  90          if (next == quote && !escaped) {
  91            if (!tripleQuoted) { break; }
  92            if (stream.match(quote + quote)) { end = true; break; }
  93          }
  94          if (quote == '"' && next == "$" && !escaped) {
  95            if (stream.eat("{")) {
  96              state.tokenize.push(tokenBaseUntilBrace());
  97              return "string";
  98            } else if (stream.match(/^\w/, false)) {
  99              state.tokenize.push(tokenVariableDeref);
 100              return "string";
 101            }
 102          }
 103          escaped = !escaped && next == "\\";
 104        }
 105        if (end) state.tokenize.pop();
 106        return "string";
 107      }
 108      state.tokenize.push(t);
 109      return t(stream, state);
 110    }
 111  
 112    function tokenBaseUntilBrace() {
 113      var depth = 1;
 114      function t(stream, state) {
 115        if (stream.peek() == "}") {
 116          depth--;
 117          if (depth == 0) {
 118            state.tokenize.pop();
 119            return state.tokenize[state.tokenize.length-1](stream, state);
 120          }
 121        } else if (stream.peek() == "{") {
 122          depth++;
 123        }
 124        return tokenBase(stream, state);
 125      }
 126      t.isBase = true;
 127      return t;
 128    }
 129  
 130    function tokenVariableDeref(stream, state) {
 131      var next = stream.match(/^(\.|[\w\$_]+)/)
 132      if (!next) {
 133        state.tokenize.pop()
 134        return state.tokenize[state.tokenize.length-1](stream, state)
 135      }
 136      return next[0] == "." ? null : "variable"
 137    }
 138  
 139    function tokenComment(stream, state) {
 140      var maybeEnd = false, ch;
 141      while (ch = stream.next()) {
 142        if (ch == "/" && maybeEnd) {
 143          state.tokenize.pop();
 144          break;
 145        }
 146        maybeEnd = (ch == "*");
 147      }
 148      return "comment";
 149    }
 150  
 151    function expectExpression(last, newline) {
 152      return !last || last == "operator" || last == "->" || /[\.\[\{\(,;:]/.test(last) ||
 153        last == "newstatement" || last == "keyword" || last == "proplabel" ||
 154        (last == "standalone" && !newline);
 155    }
 156  
 157    function Context(indented, column, type, align, prev) {
 158      this.indented = indented;
 159      this.column = column;
 160      this.type = type;
 161      this.align = align;
 162      this.prev = prev;
 163    }
 164    function pushContext(state, col, type) {
 165      return state.context = new Context(state.indented, col, type, null, state.context);
 166    }
 167    function popContext(state) {
 168      var t = state.context.type;
 169      if (t == ")" || t == "]" || t == "}")
 170        state.indented = state.context.indented;
 171      return state.context = state.context.prev;
 172    }
 173  
 174    // Interface
 175  
 176    return {
 177      startState: function(basecolumn) {
 178        return {
 179          tokenize: [tokenBase],
 180          context: new Context((basecolumn || 0) - config.indentUnit, 0, "top", false),
 181          indented: 0,
 182          startOfLine: true,
 183          lastToken: null
 184        };
 185      },
 186  
 187      token: function(stream, state) {
 188        var ctx = state.context;
 189        if (stream.sol()) {
 190          if (ctx.align == null) ctx.align = false;
 191          state.indented = stream.indentation();
 192          state.startOfLine = true;
 193          // Automatic semicolon insertion
 194          if (ctx.type == "statement" && !expectExpression(state.lastToken, true)) {
 195            popContext(state); ctx = state.context;
 196          }
 197        }
 198        if (stream.eatSpace()) return null;
 199        curPunc = null;
 200        var style = state.tokenize[state.tokenize.length-1](stream, state);
 201        if (style == "comment") return style;
 202        if (ctx.align == null) ctx.align = true;
 203  
 204        if ((curPunc == ";" || curPunc == ":") && ctx.type == "statement") popContext(state);
 205        // Handle indentation for {x -> \n ... }
 206        else if (curPunc == "->" && ctx.type == "statement" && ctx.prev.type == "}") {
 207          popContext(state);
 208          state.context.align = false;
 209        }
 210        else if (curPunc == "{") pushContext(state, stream.column(), "}");
 211        else if (curPunc == "[") pushContext(state, stream.column(), "]");
 212        else if (curPunc == "(") pushContext(state, stream.column(), ")");
 213        else if (curPunc == "}") {
 214          while (ctx.type == "statement") ctx = popContext(state);
 215          if (ctx.type == "}") ctx = popContext(state);
 216          while (ctx.type == "statement") ctx = popContext(state);
 217        }
 218        else if (curPunc == ctx.type) popContext(state);
 219        else if (ctx.type == "}" || ctx.type == "top" || (ctx.type == "statement" && curPunc == "newstatement"))
 220          pushContext(state, stream.column(), "statement");
 221        state.startOfLine = false;
 222        state.lastToken = curPunc || style;
 223        return style;
 224      },
 225  
 226      indent: function(state, textAfter) {
 227        if (!state.tokenize[state.tokenize.length-1].isBase) return CodeMirror.Pass;
 228        var firstChar = textAfter && textAfter.charAt(0), ctx = state.context;
 229        if (ctx.type == "statement" && !expectExpression(state.lastToken, true)) ctx = ctx.prev;
 230        var closing = firstChar == ctx.type;
 231        if (ctx.type == "statement") return ctx.indented + (firstChar == "{" ? 0 : config.indentUnit);
 232        else if (ctx.align) return ctx.column + (closing ? 0 : 1);
 233        else return ctx.indented + (closing ? 0 : config.indentUnit);
 234      },
 235  
 236      electricChars: "{}",
 237      closeBrackets: {triples: "'\""},
 238      fold: "brace",
 239      blockCommentStart: "/*",
 240      blockCommentEnd: "*/",
 241      lineComment: "//"
 242    };
 243  });
 244  
 245  CodeMirror.defineMIME("text/x-groovy", "groovy");
 246  
 247  });