github.com/jancarloviray/community@v0.41.1-0.20170124221257-33a66c87cf2f/app/public/codemirror/mode/turtle/turtle.js (about)

     1  // CodeMirror, copyright (c) by Marijn Haverbeke and others
     2  // Distributed under an MIT license: http://codemirror.net/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("turtle", function(config) {
    15    var indentUnit = config.indentUnit;
    16    var curPunc;
    17  
    18    function wordRegexp(words) {
    19      return new RegExp("^(?:" + words.join("|") + ")$", "i");
    20    }
    21    var ops = wordRegexp([]);
    22    var keywords = wordRegexp(["@prefix", "@base", "a"]);
    23    var operatorChars = /[*+\-<>=&|]/;
    24  
    25    function tokenBase(stream, state) {
    26      var ch = stream.next();
    27      curPunc = null;
    28      if (ch == "<" && !stream.match(/^[\s\u00a0=]/, false)) {
    29        stream.match(/^[^\s\u00a0>]*>?/);
    30        return "atom";
    31      }
    32      else if (ch == "\"" || ch == "'") {
    33        state.tokenize = tokenLiteral(ch);
    34        return state.tokenize(stream, state);
    35      }
    36      else if (/[{}\(\),\.;\[\]]/.test(ch)) {
    37        curPunc = ch;
    38        return null;
    39      }
    40      else if (ch == "#") {
    41        stream.skipToEnd();
    42        return "comment";
    43      }
    44      else if (operatorChars.test(ch)) {
    45        stream.eatWhile(operatorChars);
    46        return null;
    47      }
    48      else if (ch == ":") {
    49            return "operator";
    50          } else {
    51        stream.eatWhile(/[_\w\d]/);
    52        if(stream.peek() == ":") {
    53          return "variable-3";
    54        } else {
    55               var word = stream.current();
    56  
    57               if(keywords.test(word)) {
    58                          return "meta";
    59               }
    60  
    61               if(ch >= "A" && ch <= "Z") {
    62                      return "comment";
    63                   } else {
    64                          return "keyword";
    65                   }
    66        }
    67        var word = stream.current();
    68        if (ops.test(word))
    69          return null;
    70        else if (keywords.test(word))
    71          return "meta";
    72        else
    73          return "variable";
    74      }
    75    }
    76  
    77    function tokenLiteral(quote) {
    78      return function(stream, state) {
    79        var escaped = false, ch;
    80        while ((ch = stream.next()) != null) {
    81          if (ch == quote && !escaped) {
    82            state.tokenize = tokenBase;
    83            break;
    84          }
    85          escaped = !escaped && ch == "\\";
    86        }
    87        return "string";
    88      };
    89    }
    90  
    91    function pushContext(state, type, col) {
    92      state.context = {prev: state.context, indent: state.indent, col: col, type: type};
    93    }
    94    function popContext(state) {
    95      state.indent = state.context.indent;
    96      state.context = state.context.prev;
    97    }
    98  
    99    return {
   100      startState: function() {
   101        return {tokenize: tokenBase,
   102                context: null,
   103                indent: 0,
   104                col: 0};
   105      },
   106  
   107      token: function(stream, state) {
   108        if (stream.sol()) {
   109          if (state.context && state.context.align == null) state.context.align = false;
   110          state.indent = stream.indentation();
   111        }
   112        if (stream.eatSpace()) return null;
   113        var style = state.tokenize(stream, state);
   114  
   115        if (style != "comment" && state.context && state.context.align == null && state.context.type != "pattern") {
   116          state.context.align = true;
   117        }
   118  
   119        if (curPunc == "(") pushContext(state, ")", stream.column());
   120        else if (curPunc == "[") pushContext(state, "]", stream.column());
   121        else if (curPunc == "{") pushContext(state, "}", stream.column());
   122        else if (/[\]\}\)]/.test(curPunc)) {
   123          while (state.context && state.context.type == "pattern") popContext(state);
   124          if (state.context && curPunc == state.context.type) popContext(state);
   125        }
   126        else if (curPunc == "." && state.context && state.context.type == "pattern") popContext(state);
   127        else if (/atom|string|variable/.test(style) && state.context) {
   128          if (/[\}\]]/.test(state.context.type))
   129            pushContext(state, "pattern", stream.column());
   130          else if (state.context.type == "pattern" && !state.context.align) {
   131            state.context.align = true;
   132            state.context.col = stream.column();
   133          }
   134        }
   135  
   136        return style;
   137      },
   138  
   139      indent: function(state, textAfter) {
   140        var firstChar = textAfter && textAfter.charAt(0);
   141        var context = state.context;
   142        if (/[\]\}]/.test(firstChar))
   143          while (context && context.type == "pattern") context = context.prev;
   144  
   145        var closing = context && firstChar == context.type;
   146        if (!context)
   147          return 0;
   148        else if (context.type == "pattern")
   149          return context.col;
   150        else if (context.align)
   151          return context.col + (closing ? 0 : 1);
   152        else
   153          return context.indent + (closing ? 0 : indentUnit);
   154      },
   155  
   156      lineComment: "#"
   157    };
   158  });
   159  
   160  CodeMirror.defineMIME("text/turtle", "turtle");
   161  
   162  });