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6 |
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7 | (function(mod) {
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8 | if (typeof exports == "object" && typeof module == "object")
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9 | mod(require("../../lib/codemirror"));
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10 | else if (typeof define == "function" && define.amd)
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11 | define(["../../lib/codemirror"], mod);
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12 | else
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13 | mod(CodeMirror);
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14 | })(function(CodeMirror) {
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15 | "use strict";
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16 |
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17 | CodeMirror.defineMode('yacas', function(_config, _parserConfig) {
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18 |
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19 | function words(str) {
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20 | var obj = {}, words = str.split(" ");
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21 | for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
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22 | return obj;
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23 | }
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24 |
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25 | var bodiedOps = words("Assert BackQuote D Defun Deriv For ForEach FromFile " +
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26 | "FromString Function Integrate InverseTaylor Limit " +
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27 | "LocalSymbols Macro MacroRule MacroRulePattern " +
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28 | "NIntegrate Rule RulePattern Subst TD TExplicitSum " +
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29 | "TSum Taylor Taylor1 Taylor2 Taylor3 ToFile " +
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30 | "ToStdout ToString TraceRule Until While");
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31 |
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32 |
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33 | var pFloatForm = "(?:(?:\\.\\d+|\\d+\\.\\d*|\\d+)(?:[eE][+-]?\\d+)?)";
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34 | var pIdentifier = "(?:[a-zA-Z\\$'][a-zA-Z0-9\\$']*)";
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35 |
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36 |
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37 | var reFloatForm = new RegExp(pFloatForm);
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38 | var reIdentifier = new RegExp(pIdentifier);
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39 | var rePattern = new RegExp(pIdentifier + "?_" + pIdentifier);
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40 | var reFunctionLike = new RegExp(pIdentifier + "\\s*\\(");
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41 |
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42 | function tokenBase(stream, state) {
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43 | var ch;
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44 |
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45 |
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46 | ch = stream.next();
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47 |
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48 |
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49 | if (ch === '"') {
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50 | state.tokenize = tokenString;
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51 | return state.tokenize(stream, state);
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52 | }
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53 |
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54 |
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55 | if (ch === '/') {
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56 | if (stream.eat('*')) {
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57 | state.tokenize = tokenComment;
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58 | return state.tokenize(stream, state);
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59 | }
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60 | if (stream.eat("/")) {
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61 | stream.skipToEnd();
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62 | return "comment";
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63 | }
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64 | }
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65 |
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66 |
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67 | stream.backUp(1);
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68 |
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69 |
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70 | var m = stream.match(/^(\w+)\s*\(/, false);
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71 | if (m !== null && bodiedOps.hasOwnProperty(m[1]))
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72 | state.scopes.push('bodied');
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73 |
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74 | var scope = currentScope(state);
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75 |
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76 | if (scope === 'bodied' && ch === '[')
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77 | state.scopes.pop();
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78 |
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79 | if (ch === '[' || ch === '{' || ch === '(')
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80 | state.scopes.push(ch);
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81 |
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82 | scope = currentScope(state);
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83 |
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84 | if (scope === '[' && ch === ']' ||
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85 | scope === '{' && ch === '}' ||
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86 | scope === '(' && ch === ')')
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87 | state.scopes.pop();
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88 |
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89 | if (ch === ';') {
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90 | while (scope === 'bodied') {
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91 | state.scopes.pop();
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92 | scope = currentScope(state);
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93 | }
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94 | }
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95 |
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96 |
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97 | if (stream.match(/\d+ *#/, true, false)) {
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98 | return 'qualifier';
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99 | }
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100 |
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101 |
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102 | if (stream.match(reFloatForm, true, false)) {
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103 | return 'number';
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104 | }
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105 |
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106 |
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107 | if (stream.match(rePattern, true, false)) {
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108 | return 'variable-3';
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109 | }
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110 |
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111 |
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112 | if (stream.match(/(?:\[|\]|{|}|\(|\))/, true, false)) {
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113 | return 'bracket';
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114 | }
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115 |
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116 |
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117 | if (stream.match(reFunctionLike, true, false)) {
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118 | stream.backUp(1);
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119 | return 'variable';
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120 | }
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121 |
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122 |
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123 | if (stream.match(reIdentifier, true, false)) {
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124 | return 'variable-2';
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125 | }
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126 |
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127 |
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128 | if (stream.match(/(?:\\|\+|\-|\*|\/|,|;|\.|:|@|~|=|>|<|&|\||_|`|'|\^|\?|!|%|#)/, true, false)) {
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129 | return 'operator';
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130 | }
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131 |
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132 |
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133 | return 'error';
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134 | }
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135 |
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136 | function tokenString(stream, state) {
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137 | var next, end = false, escaped = false;
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138 | while ((next = stream.next()) != null) {
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139 | if (next === '"' && !escaped) {
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140 | end = true;
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141 | break;
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142 | }
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143 | escaped = !escaped && next === '\\';
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144 | }
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145 | if (end && !escaped) {
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146 | state.tokenize = tokenBase;
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147 | }
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148 | return 'string';
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149 | };
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150 |
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151 | function tokenComment(stream, state) {
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152 | var prev, next;
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153 | while((next = stream.next()) != null) {
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154 | if (prev === '*' && next === '/') {
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155 | state.tokenize = tokenBase;
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156 | break;
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157 | }
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158 | prev = next;
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159 | }
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160 | return 'comment';
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161 | }
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162 |
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163 | function currentScope(state) {
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164 | var scope = null;
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165 | if (state.scopes.length > 0)
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166 | scope = state.scopes[state.scopes.length - 1];
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167 | return scope;
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168 | }
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169 |
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170 | return {
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171 | startState: function() {
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172 | return {
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173 | tokenize: tokenBase,
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174 | scopes: []
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175 | };
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176 | },
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177 | token: function(stream, state) {
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178 | if (stream.eatSpace()) return null;
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179 | return state.tokenize(stream, state);
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180 | },
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181 | indent: function(state, textAfter) {
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182 | if (state.tokenize !== tokenBase && state.tokenize !== null)
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183 | return CodeMirror.Pass;
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184 |
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185 | var delta = 0;
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186 | if (textAfter === ']' || textAfter === '];' ||
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187 | textAfter === '}' || textAfter === '};' ||
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188 | textAfter === ');')
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189 | delta = -1;
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190 |
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191 | return (state.scopes.length + delta) * _config.indentUnit;
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192 | },
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193 | electricChars: "{}[]();",
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194 | blockCommentStart: "/*",
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195 | blockCommentEnd: "*/",
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196 | lineComment: "//"
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197 | };
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198 | });
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199 |
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200 | CodeMirror.defineMIME('text/x-yacas', {
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201 | name: 'yacas'
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202 | });
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203 |
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204 | });
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