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1 // CodeMirror, copyright (c) by Marijn Haverbeke and others
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2 // Distributed under an MIT license: http://codemirror.net/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("sieve", function(config) {
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15 function words(str) {
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16 var obj = {}, words = str.split(" ");
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17 for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
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18 return obj;
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19 }
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20
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21 var keywords = words("if elsif else stop require");
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22 var atoms = words("true false not");
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23 var indentUnit = config.indentUnit;
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24
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25 function tokenBase(stream, state) {
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26
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27 var ch = stream.next();
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28 if (ch == "/" && stream.eat("*")) {
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29 state.tokenize = tokenCComment;
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30 return tokenCComment(stream, state);
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31 }
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32
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33 if (ch === '#') {
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34 stream.skipToEnd();
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35 return "comment";
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36 }
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37
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38 if (ch == "\"") {
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39 state.tokenize = tokenString(ch);
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40 return state.tokenize(stream, state);
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41 }
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42
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43 if (ch == "(") {
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44 state._indent.push("(");
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45 // add virtual angel wings so that editor behaves...
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46 // ...more sane incase of broken brackets
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47 state._indent.push("{");
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48 return null;
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49 }
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50
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51 if (ch === "{") {
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52 state._indent.push("{");
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53 return null;
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54 }
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55
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56 if (ch == ")") {
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57 state._indent.pop();
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58 state._indent.pop();
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59 }
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60
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61 if (ch === "}") {
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62 state._indent.pop();
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63 return null;
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64 }
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65
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66 if (ch == ",")
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67 return null;
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68
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69 if (ch == ";")
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70 return null;
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71
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72
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73 if (/[{}\(\),;]/.test(ch))
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74 return null;
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75
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76 // 1*DIGIT "K" / "M" / "G"
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77 if (/\d/.test(ch)) {
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78 stream.eatWhile(/[\d]/);
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79 stream.eat(/[KkMmGg]/);
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80 return "number";
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81 }
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82
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83 // ":" (ALPHA / "_") *(ALPHA / DIGIT / "_")
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84 if (ch == ":") {
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85 stream.eatWhile(/[a-zA-Z_]/);
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86 stream.eatWhile(/[a-zA-Z0-9_]/);
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87
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88 return "operator";
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89 }
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90
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91 stream.eatWhile(/\w/);
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92 var cur = stream.current();
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93
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94 // "text:" *(SP / HTAB) (hash-comment / CRLF)
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95 // *(multiline-literal / multiline-dotstart)
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96 // "." CRLF
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97 if ((cur == "text") && stream.eat(":"))
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98 {
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99 state.tokenize = tokenMultiLineString;
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100 return "string";
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101 }
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102
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103 if (keywords.propertyIsEnumerable(cur))
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104 return "keyword";
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105
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106 if (atoms.propertyIsEnumerable(cur))
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107 return "atom";
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108
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109 return null;
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110 }
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111
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112 function tokenMultiLineString(stream, state)
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113 {
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114 state._multiLineString = true;
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115 // the first line is special it may contain a comment
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116 if (!stream.sol()) {
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117 stream.eatSpace();
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118
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119 if (stream.peek() == "#") {
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120 stream.skipToEnd();
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121 return "comment";
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122 }
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123
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124 stream.skipToEnd();
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125 return "string";
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126 }
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127
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128 if ((stream.next() == ".") && (stream.eol()))
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129 {
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130 state._multiLineString = false;
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131 state.tokenize = tokenBase;
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132 }
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133
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134 return "string";
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135 }
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136
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137 function tokenCComment(stream, state) {
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138 var maybeEnd = false, ch;
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139 while ((ch = stream.next()) != null) {
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140 if (maybeEnd && ch == "/") {
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141 state.tokenize = tokenBase;
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142 break;
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143 }
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144 maybeEnd = (ch == "*");
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145 }
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146 return "comment";
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147 }
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148
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149 function tokenString(quote) {
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150 return function(stream, state) {
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151 var escaped = false, ch;
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152 while ((ch = stream.next()) != null) {
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153 if (ch == quote && !escaped)
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154 break;
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155 escaped = !escaped && ch == "\\";
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156 }
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157 if (!escaped) state.tokenize = tokenBase;
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158 return "string";
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159 };
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160 }
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161
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162 return {
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163 startState: function(base) {
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164 return {tokenize: tokenBase,
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165 baseIndent: base || 0,
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166 _indent: []};
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167 },
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168
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169 token: function(stream, state) {
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170 if (stream.eatSpace())
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171 return null;
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172
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173 return (state.tokenize || tokenBase)(stream, state);;
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174 },
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175
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176 indent: function(state, _textAfter) {
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177 var length = state._indent.length;
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178 if (_textAfter && (_textAfter[0] == "}"))
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179 length--;
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180
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181 if (length <0)
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182 length = 0;
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183
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184 return length * indentUnit;
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185 },
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186
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187 electricChars: "}"
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188 };
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189 });
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190
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191 CodeMirror.defineMIME("application/sieve", "sieve");
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192
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193 });
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