GPQAPP

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// CodeMirror, copyright (c) by Marijn Haverbeke and others
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// Distributed under an MIT license: https://codemirror.net/LICENSE
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(function(mod) {
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  if (typeof exports == "object" && typeof module == "object") // CommonJS
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    mod(require("../../lib/codemirror"));
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  else if (typeof define == "function" && define.amd) // AMD
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    define(["../../lib/codemirror"], mod);
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  else // Plain browser env
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    mod(CodeMirror);
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})(function(CodeMirror) {
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"use strict";
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CodeMirror.defineMode("octave", function() {
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  function wordRegexp(words) {
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    return new RegExp("^((" + words.join(")|(") + "))\\b");
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  }
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  var singleOperators = new RegExp("^[\\+\\-\\*/&|\\^~<>!@'\\\\]");
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  var singleDelimiters = new RegExp('^[\\(\\[\\{\\},:=;\\.]');
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  var doubleOperators = new RegExp("^((==)|(~=)|(<=)|(>=)|(<<)|(>>)|(\\.[\\+\\-\\*/\\^\\\\]))");
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  var doubleDelimiters = new RegExp("^((!=)|(\\+=)|(\\-=)|(\\*=)|(/=)|(&=)|(\\|=)|(\\^=))");
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  var tripleDelimiters = new RegExp("^((>>=)|(<<=))");
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  var expressionEnd = new RegExp("^[\\]\\)]");
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  var identifiers = new RegExp("^[_A-Za-z\xa1-\uffff][_A-Za-z0-9\xa1-\uffff]*");
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  var builtins = wordRegexp([
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    'error', 'eval', 'function', 'abs', 'acos', 'atan', 'asin', 'cos',
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    'cosh', 'exp', 'log', 'prod', 'sum', 'log10', 'max', 'min', 'sign', 'sin', 'sinh',
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    'sqrt', 'tan', 'reshape', 'break', 'zeros', 'default', 'margin', 'round', 'ones',
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    'rand', 'syn', 'ceil', 'floor', 'size', 'clear', 'zeros', 'eye', 'mean', 'std', 'cov',
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    'det', 'eig', 'inv', 'norm', 'rank', 'trace', 'expm', 'logm', 'sqrtm', 'linspace', 'plot',
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    'title', 'xlabel', 'ylabel', 'legend', 'text', 'grid', 'meshgrid', 'mesh', 'num2str',
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    'fft', 'ifft', 'arrayfun', 'cellfun', 'input', 'fliplr', 'flipud', 'ismember'
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  ]);
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  var keywords = wordRegexp([
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    'return', 'case', 'switch', 'else', 'elseif', 'end', 'endif', 'endfunction',
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    'if', 'otherwise', 'do', 'for', 'while', 'try', 'catch', 'classdef', 'properties', 'events',
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    'methods', 'global', 'persistent', 'endfor', 'endwhile', 'printf', 'sprintf', 'disp', 'until',
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    'continue', 'pkg'
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  ]);
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  // tokenizers
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  function tokenTranspose(stream, state) {
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    if (!stream.sol() && stream.peek() === '\'') {
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      stream.next();
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      state.tokenize = tokenBase;
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      return 'operator';
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    }
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    state.tokenize = tokenBase;
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    return tokenBase(stream, state);
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  }
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  function tokenComment(stream, state) {
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    if (stream.match(/^.*%}/)) {
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      state.tokenize = tokenBase;
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      return 'comment';
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    };
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    stream.skipToEnd();
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    return 'comment';
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  }
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  function tokenBase(stream, state) {
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    // whitespaces
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    if (stream.eatSpace()) return null;
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    // Handle one line Comments
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    if (stream.match('%{')){
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      state.tokenize = tokenComment;
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      stream.skipToEnd();
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      return 'comment';
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    }
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    if (stream.match(/^[%#]/)){
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      stream.skipToEnd();
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      return 'comment';
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    }
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    // Handle Number Literals
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    if (stream.match(/^[0-9\.+-]/, false)) {
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      if (stream.match(/^[+-]?0x[0-9a-fA-F]+[ij]?/)) {
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        stream.tokenize = tokenBase;
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        return 'number'; };
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      if (stream.match(/^[+-]?\d*\.\d+([EeDd][+-]?\d+)?[ij]?/)) { return 'number'; };
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      if (stream.match(/^[+-]?\d+([EeDd][+-]?\d+)?[ij]?/)) { return 'number'; };
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    }
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    if (stream.match(wordRegexp(['nan','NaN','inf','Inf']))) { return 'number'; };
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    // Handle Strings
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    var m = stream.match(/^"(?:[^"]|"")*("|$)/) || stream.match(/^'(?:[^']|'')*('|$)/)
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    if (m) { return m[1] ? 'string' : "string error"; }
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    // Handle words
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    if (stream.match(keywords)) { return 'keyword'; } ;
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    if (stream.match(builtins)) { return 'builtin'; } ;
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    if (stream.match(identifiers)) { return 'variable'; } ;
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    if (stream.match(singleOperators) || stream.match(doubleOperators)) { return 'operator'; };
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    if (stream.match(singleDelimiters) || stream.match(doubleDelimiters) || stream.match(tripleDelimiters)) { return null; };
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    if (stream.match(expressionEnd)) {
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      state.tokenize = tokenTranspose;
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      return null;
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    };
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    // Handle non-detected items
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    stream.next();
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    return 'error';
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  };
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  return {
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    startState: function() {
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      return {
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        tokenize: tokenBase
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      };
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    },
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    token: function(stream, state) {
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      var style = state.tokenize(stream, state);
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      if (style === 'number' || style === 'variable'){
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        state.tokenize = tokenTranspose;
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      }
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      return style;
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    },
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    lineComment: '%',
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    fold: 'indent'
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  };
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});
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CodeMirror.defineMIME("text/x-octave", "octave");
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});
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