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octave.js (4522B)

      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("octave", function() {
     15   function wordRegexp(words) {
     16     return new RegExp("^((" + words.join(")|(") + "))\\b");
     17   }
     18 
     19   var singleOperators = new RegExp("^[\\+\\-\\*/&|\\^~<>!@'\\\\]");
     20   var singleDelimiters = new RegExp('^[\\(\\[\\{\\},:=;]');
     21   var doubleOperators = new RegExp("^((==)|(~=)|(<=)|(>=)|(<<)|(>>)|(\\.[\\+\\-\\*/\\^\\\\]))");
     22   var doubleDelimiters = new RegExp("^((!=)|(\\+=)|(\\-=)|(\\*=)|(/=)|(&=)|(\\|=)|(\\^=))");
     23   var tripleDelimiters = new RegExp("^((>>=)|(<<=))");
     24   var expressionEnd = new RegExp("^[\\]\\)]");
     25   var identifiers = new RegExp("^[_A-Za-z\xa1-\uffff][_A-Za-z0-9\xa1-\uffff]*");
     26 
     27   var builtins = wordRegexp([
     28     'error', 'eval', 'function', 'abs', 'acos', 'atan', 'asin', 'cos',
     29     'cosh', 'exp', 'log', 'prod', 'sum', 'log10', 'max', 'min', 'sign', 'sin', 'sinh',
     30     'sqrt', 'tan', 'reshape', 'break', 'zeros', 'default', 'margin', 'round', 'ones',
     31     'rand', 'syn', 'ceil', 'floor', 'size', 'clear', 'zeros', 'eye', 'mean', 'std', 'cov',
     32     'det', 'eig', 'inv', 'norm', 'rank', 'trace', 'expm', 'logm', 'sqrtm', 'linspace', 'plot',
     33     'title', 'xlabel', 'ylabel', 'legend', 'text', 'grid', 'meshgrid', 'mesh', 'num2str',
     34     'fft', 'ifft', 'arrayfun', 'cellfun', 'input', 'fliplr', 'flipud', 'ismember'
     35   ]);
     36 
     37   var keywords = wordRegexp([
     38     'return', 'case', 'switch', 'else', 'elseif', 'end', 'endif', 'endfunction',
     39     'if', 'otherwise', 'do', 'for', 'while', 'try', 'catch', 'classdef', 'properties', 'events',
     40     'methods', 'global', 'persistent', 'endfor', 'endwhile', 'printf', 'sprintf', 'disp', 'until',
     41     'continue', 'pkg'
     42   ]);
     43 
     44 
     45   // tokenizers
     46   function tokenTranspose(stream, state) {
     47     if (!stream.sol() && stream.peek() === '\'') {
     48       stream.next();
     49       state.tokenize = tokenBase;
     50       return 'operator';
     51     }
     52     state.tokenize = tokenBase;
     53     return tokenBase(stream, state);
     54   }
     55 
     56 
     57   function tokenComment(stream, state) {
     58     if (stream.match(/^.*%}/)) {
     59       state.tokenize = tokenBase;
     60       return 'comment';
     61     };
     62     stream.skipToEnd();
     63     return 'comment';
     64   }
     65 
     66   function tokenBase(stream, state) {
     67     // whitespaces
     68     if (stream.eatSpace()) return null;
     69 
     70     // Handle one line Comments
     71     if (stream.match('%{')){
     72       state.tokenize = tokenComment;
     73       stream.skipToEnd();
     74       return 'comment';
     75     }
     76 
     77     if (stream.match(/^[%#]/)){
     78       stream.skipToEnd();
     79       return 'comment';
     80     }
     81 
     82     // Handle Number Literals
     83     if (stream.match(/^[0-9\.+-]/, false)) {
     84       if (stream.match(/^[+-]?0x[0-9a-fA-F]+[ij]?/)) {
     85         stream.tokenize = tokenBase;
     86         return 'number'; };
     87       if (stream.match(/^[+-]?\d*\.\d+([EeDd][+-]?\d+)?[ij]?/)) { return 'number'; };
     88       if (stream.match(/^[+-]?\d+([EeDd][+-]?\d+)?[ij]?/)) { return 'number'; };
     89     }
     90     if (stream.match(wordRegexp(['nan','NaN','inf','Inf']))) { return 'number'; };
     91 
     92     // Handle Strings
     93     var m = stream.match(/^"(?:[^"]|"")*("|$)/) || stream.match(/^'(?:[^']|'')*('|$)/)
     94     if (m) { return m[1] ? 'string' : "string error"; }
     95 
     96     // Handle words
     97     if (stream.match(keywords)) { return 'keyword'; } ;
     98     if (stream.match(builtins)) { return 'builtin'; } ;
     99     if (stream.match(identifiers)) { return 'variable'; } ;
    100 
    101     if (stream.match(singleOperators) || stream.match(doubleOperators)) { return 'operator'; };
    102     if (stream.match(singleDelimiters) || stream.match(doubleDelimiters) || stream.match(tripleDelimiters)) { return null; };
    103 
    104     if (stream.match(expressionEnd)) {
    105       state.tokenize = tokenTranspose;
    106       return null;
    107     };
    108 
    109 
    110     // Handle non-detected items
    111     stream.next();
    112     return 'error';
    113   };
    114 
    115 
    116   return {
    117     startState: function() {
    118       return {
    119         tokenize: tokenBase
    120       };
    121     },
    122 
    123     token: function(stream, state) {
    124       var style = state.tokenize(stream, state);
    125       if (style === 'number' || style === 'variable'){
    126         state.tokenize = tokenTranspose;
    127       }
    128       return style;
    129     },
    130 
    131     lineComment: '%',
    132 
    133     fold: 'indent'
    134   };
    135 });
    136 
    137 CodeMirror.defineMIME("text/x-octave", "octave");
    138 
    139 });