Subversion-Projekte lars-tiefland.cienc

// CodeMirror, copyright (c) by Marijn Haverbeke and others

// Distributed under an MIT license: http://codemirror.net/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("kotlin", function (config, parserConfig) {

  function words(str) {

    var obj = {}, words = str.split(" ");

    for (var i = 0; i < words.length; ++i) obj[words[i]] = true;

    return obj;

  }

  var multiLineStrings = parserConfig.multiLineStrings;

  var keywords = words(

          "package continue return object while break class data trait interface throw super" +

          " when type this else This try val var fun for is in if do as true false null get set");

  var softKeywords = words("import" +

      " where by get set abstract enum open annotation override private public internal" +

      " protected catch out vararg inline finally final ref");

  var blockKeywords = words("catch class do else finally for if where try while enum");

  var atoms = words("null true false this");

  var curPunc;

  function tokenBase(stream, state) {

    var ch = stream.next();

    if (ch == '"' || ch == "'") {

      return startString(ch, stream, state);

    }

    // Wildcard import w/o trailing semicolon (import smth.*)

    if (ch == "." && stream.eat("*")) {

      return "word";

    }

    if (/[\[\]{}\(\),;\:\.]/.test(ch)) {

      curPunc = ch;

      return null;

    }

    if (/\d/.test(ch)) {

      if (stream.eat(/eE/)) {

        stream.eat(/\+\-/);

        stream.eatWhile(/\d/);

      }

      return "number";

    }

    if (ch == "/") {

      if (stream.eat("*")) {

        state.tokenize.push(tokenComment);

        return tokenComment(stream, state);

      }

      if (stream.eat("/")) {

        stream.skipToEnd();

        return "comment";

      }

      if (expectExpression(state.lastToken)) {

        return startString(ch, stream, state);

      }

    }

    // Commented

    if (ch == "-" && stream.eat(">")) {

      curPunc = "->";

      return null;

    }

    if (/[\-+*&%=<>!?|\/~]/.test(ch)) {

      stream.eatWhile(/[\-+*&%=<>|~]/);

      return "operator";

    }

    stream.eatWhile(/[\w\$_]/);

    var cur = stream.current();

    if (atoms.propertyIsEnumerable(cur)) {

      return "atom";

    }

    if (softKeywords.propertyIsEnumerable(cur)) {

      if (blockKeywords.propertyIsEnumerable(cur)) curPunc = "newstatement";

      return "softKeyword";

    }

    if (keywords.propertyIsEnumerable(cur)) {

      if (blockKeywords.propertyIsEnumerable(cur)) curPunc = "newstatement";

      return "keyword";

    }

    return "word";

  }

  tokenBase.isBase = true;

  function startString(quote, stream, state) {

    var tripleQuoted = false;

    if (quote != "/" && stream.eat(quote)) {

      if (stream.eat(quote)) tripleQuoted = true;

      else return "string";

    }

    function t(stream, state) {

      var escaped = false, next, end = !tripleQuoted;

      while ((next = stream.next()) != null) {

        if (next == quote && !escaped) {

          if (!tripleQuoted) {

            break;

          }

          if (stream.match(quote + quote)) {

            end = true;

            break;

          }

        }

        if (quote == '"' && next == "$" && !escaped && stream.eat("{")) {

          state.tokenize.push(tokenBaseUntilBrace());

          return "string";

        }

        if (next == "$" && !escaped && !stream.eat(" ")) {

          state.tokenize.push(tokenBaseUntilSpace());

          return "string";

        }

        escaped = !escaped && next == "\\";

      }

      if (multiLineStrings)

        state.tokenize.push(t);

      if (end) state.tokenize.pop();

      return "string";

    }

    state.tokenize.push(t);

    return t(stream, state);

  }

  function tokenBaseUntilBrace() {

    var depth = 1;

    function t(stream, state) {

      if (stream.peek() == "}") {

        depth--;

        if (depth == 0) {

          state.tokenize.pop();

          return state.tokenize[state.tokenize.length - 1](stream, state);

        }

      } else if (stream.peek() == "{") {

        depth++;

      }

      return tokenBase(stream, state);

    }

    t.isBase = true;

    return t;

  }

  function tokenBaseUntilSpace() {

    function t(stream, state) {

      if (stream.eat(/[\w]/)) {

        var isWord = stream.eatWhile(/[\w]/);

        if (isWord) {

          state.tokenize.pop();

          return "word";

        }

      }

      state.tokenize.pop();

      return "string";

    }

    t.isBase = true;

    return t;

  }

  function tokenComment(stream, state) {

    var maybeEnd = false, ch;

    while (ch = stream.next()) {

      if (ch == "/" && maybeEnd) {

        state.tokenize.pop();

        break;

      }

      maybeEnd = (ch == "*");

    }

    return "comment";

  }

  function expectExpression(last) {

    return !last || last == "operator" || last == "->" || /[\.\[\{\(,;:]/.test(last) ||

        last == "newstatement" || last == "keyword" || last == "proplabel";

  }

  function Context(indented, column, type, align, prev) {

    this.indented = indented;

    this.column = column;

    this.type = type;

    this.align = align;

    this.prev = prev;

  }

  function pushContext(state, col, type) {

    return state.context = new Context(state.indented, col, type, null, state.context);

  }

  function popContext(state) {

    var t = state.context.type;

    if (t == ")" || t == "]" || t == "}")

      state.indented = state.context.indented;

    return state.context = state.context.prev;

  }

  // Interface

  return {

    startState: function (basecolumn) {

      return {

        tokenize: [tokenBase],

        context: new Context((basecolumn || 0) - config.indentUnit, 0, "top", false),

        indented: 0,

        startOfLine: true,

        lastToken: null

      };

    },

    token: function (stream, state) {

      var ctx = state.context;

      if (stream.sol()) {

        if (ctx.align == null) ctx.align = false;

        state.indented = stream.indentation();

        state.startOfLine = true;

        // Automatic semicolon insertion

        if (ctx.type == "statement" && !expectExpression(state.lastToken)) {

          popContext(state);

          ctx = state.context;

        }

      }

      if (stream.eatSpace()) return null;

      curPunc = null;

      var style = state.tokenize[state.tokenize.length - 1](stream, state);

      if (style == "comment") return style;

      if (ctx.align == null) ctx.align = true;

      if ((curPunc == ";" || curPunc == ":") && ctx.type == "statement") popContext(state);

      // Handle indentation for {x -> \n ... }

      else if (curPunc == "->" && ctx.type == "statement" && ctx.prev.type == "}") {

        popContext(state);

        state.context.align = false;

      }

      else if (curPunc == "{") pushContext(state, stream.column(), "}");

      else if (curPunc == "[") pushContext(state, stream.column(), "]");

      else if (curPunc == "(") pushContext(state, stream.column(), ")");

      else if (curPunc == "}") {

        while (ctx.type == "statement") ctx = popContext(state);

        if (ctx.type == "}") ctx = popContext(state);

        while (ctx.type == "statement") ctx = popContext(state);

      }

      else if (curPunc == ctx.type) popContext(state);

      else if (ctx.type == "}" || ctx.type == "top" || (ctx.type == "statement" && curPunc == "newstatement"))

        pushContext(state, stream.column(), "statement");

      state.startOfLine = false;

      state.lastToken = curPunc || style;

      return style;

    },

    indent: function (state, textAfter) {

      if (!state.tokenize[state.tokenize.length - 1].isBase) return 0;

      var firstChar = textAfter && textAfter.charAt(0), ctx = state.context;

      if (ctx.type == "statement" && !expectExpression(state.lastToken)) ctx = ctx.prev;

      var closing = firstChar == ctx.type;

      if (ctx.type == "statement") {

        return ctx.indented + (firstChar == "{" ? 0 : config.indentUnit);

      }

      else if (ctx.align) return ctx.column + (closing ? 0 : 1);

      else return ctx.indented + (closing ? 0 : config.indentUnit);

    },

    closeBrackets: {triples: "'\""},

    electricChars: "{}",

    blockCommentStart: "/*",

    blockCommentEnd: "*/",

    lineComment: "//"

  };

});

CodeMirror.defineMIME("text/x-kotlin", "kotlin");

});