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1 // CodeMirror, copyright (c) by Marijn Haverbeke and others
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2 // Distributed under an MIT license: https://codemirror.net/5/LICENSE
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3
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4 (function(mod) {
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5 if (typeof exports == "object" && typeof module == "object") // CommonJS
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6 mod(require("../../lib/codemirror"));
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7 else if (typeof define == "function" && define.amd) // AMD
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8 define(["../../lib/codemirror"], mod);
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9 else // Plain browser env
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10 mod(CodeMirror);
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11 })(function(CodeMirror) {
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12 "use strict";
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13
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14 CodeMirror.defineMode("octave", function() {
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15 function wordRegexp(words) {
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16 return new RegExp("^((" + words.join(")|(") + "))\\b");
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17 }
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18
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19 var singleOperators = new RegExp("^[\\+\\-\\*/&|\\^~<>!@'\\\\]");
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20 var singleDelimiters = new RegExp('^[\\(\\[\\{\\},:=;\\.]');
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21 var doubleOperators = new RegExp("^((==)|(~=)|(<=)|(>=)|(<<)|(>>)|(\\.[\\+\\-\\*/\\^\\\\]))");
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22 var doubleDelimiters = new RegExp("^((!=)|(\\+=)|(\\-=)|(\\*=)|(/=)|(&=)|(\\|=)|(\\^=))");
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23 var tripleDelimiters = new RegExp("^((>>=)|(<<=))");
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24 var expressionEnd = new RegExp("^[\\]\\)]");
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25 var identifiers = new RegExp("^[_A-Za-z\xa1-\uffff][_A-Za-z0-9\xa1-\uffff]*");
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26
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27 var builtins = wordRegexp([
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28 'error', 'eval', 'function', 'abs', 'acos', 'atan', 'asin', 'cos',
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29 'cosh', 'exp', 'log', 'prod', 'sum', 'log10', 'max', 'min', 'sign', 'sin', 'sinh',
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30 'sqrt', 'tan', 'reshape', 'break', 'zeros', 'default', 'margin', 'round', 'ones',
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31 'rand', 'syn', 'ceil', 'floor', 'size', 'clear', 'zeros', 'eye', 'mean', 'std', 'cov',
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32 'det', 'eig', 'inv', 'norm', 'rank', 'trace', 'expm', 'logm', 'sqrtm', 'linspace', 'plot',
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33 'title', 'xlabel', 'ylabel', 'legend', 'text', 'grid', 'meshgrid', 'mesh', 'num2str',
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34 'fft', 'ifft', 'arrayfun', 'cellfun', 'input', 'fliplr', 'flipud', 'ismember'
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35 ]);
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36
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37 var keywords = wordRegexp([
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38 'return', 'case', 'switch', 'else', 'elseif', 'end', 'endif', 'endfunction',
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39 'if', 'otherwise', 'do', 'for', 'while', 'try', 'catch', 'classdef', 'properties', 'events',
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40 'methods', 'global', 'persistent', 'endfor', 'endwhile', 'printf', 'sprintf', 'disp', 'until',
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41 'continue', 'pkg'
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42 ]);
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43
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44
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45 // tokenizers
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46 function tokenTranspose(stream, state) {
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47 if (!stream.sol() && stream.peek() === '\'') {
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48 stream.next();
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49 state.tokenize = tokenBase;
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50 return 'operator';
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51 }
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52 state.tokenize = tokenBase;
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53 return tokenBase(stream, state);
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54 }
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55
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56
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57 function tokenComment(stream, state) {
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58 if (stream.match(/^.*%}/)) {
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59 state.tokenize = tokenBase;
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60 return 'comment';
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61 };
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62 stream.skipToEnd();
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63 return 'comment';
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64 }
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65
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66 function tokenBase(stream, state) {
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67 // whitespaces
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68 if (stream.eatSpace()) return null;
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69
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70 // Handle one line Comments
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71 if (stream.match('%{')){
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72 state.tokenize = tokenComment;
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73 stream.skipToEnd();
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74 return 'comment';
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75 }
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76
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77 if (stream.match(/^[%#]/)){
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78 stream.skipToEnd();
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79 return 'comment';
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80 }
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81
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82 // Handle Number Literals
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83 if (stream.match(/^[0-9\.+-]/, false)) {
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84 if (stream.match(/^[+-]?0x[0-9a-fA-F]+[ij]?/)) {
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85 stream.tokenize = tokenBase;
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86 return 'number'; };
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87 if (stream.match(/^[+-]?\d*\.\d+([EeDd][+-]?\d+)?[ij]?/)) { return 'number'; };
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88 if (stream.match(/^[+-]?\d+([EeDd][+-]?\d+)?[ij]?/)) { return 'number'; };
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89 }
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90 if (stream.match(wordRegexp(['nan','NaN','inf','Inf']))) { return 'number'; };
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91
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92 // Handle Strings
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93 var m = stream.match(/^"(?:[^"]|"")*("|$)/) || stream.match(/^'(?:[^']|'')*('|$)/)
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94 if (m) { return m[1] ? 'string' : "string error"; }
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95
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96 // Handle words
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97 if (stream.match(keywords)) { return 'keyword'; } ;
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98 if (stream.match(builtins)) { return 'builtin'; } ;
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99 if (stream.match(identifiers)) { return 'variable'; } ;
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100
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101 if (stream.match(singleOperators) || stream.match(doubleOperators)) { return 'operator'; };
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102 if (stream.match(singleDelimiters) || stream.match(doubleDelimiters) || stream.match(tripleDelimiters)) { return null; };
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103
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104 if (stream.match(expressionEnd)) {
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105 state.tokenize = tokenTranspose;
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106 return null;
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107 };
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108
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109
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110 // Handle non-detected items
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111 stream.next();
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112 return 'error';
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113 };
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114
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115
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116 return {
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117 startState: function() {
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118 return {
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119 tokenize: tokenBase
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120 };
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121 },
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122
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123 token: function(stream, state) {
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124 var style = state.tokenize(stream, state);
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125 if (style === 'number' || style === 'variable'){
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126 state.tokenize = tokenTranspose;
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127 }
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128 return style;
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129 },
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130
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131 lineComment: '%',
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132
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133 fold: 'indent'
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134 };
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135 });
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136
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137 CodeMirror.defineMIME("text/x-octave", "octave");
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138
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139 });
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