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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"), require("../htmlmixed/htmlmixed"),
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7 require("../../addon/mode/overlay"));
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8 else if (typeof define == "function" && define.amd) // AMD
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9 define(["../../lib/codemirror", "../htmlmixed/htmlmixed",
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10 "../../addon/mode/overlay"], mod);
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11 else // Plain browser env
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12 mod(CodeMirror);
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13 })(function(CodeMirror) {
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14 "use strict";
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15
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16 CodeMirror.defineMode("django:inner", function() {
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17 var keywords = ["block", "endblock", "for", "endfor", "true", "false", "filter", "endfilter",
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18 "loop", "none", "self", "super", "if", "elif", "endif", "as", "else", "import",
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19 "with", "endwith", "without", "context", "ifequal", "endifequal", "ifnotequal",
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20 "endifnotequal", "extends", "include", "load", "comment", "endcomment",
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21 "empty", "url", "static", "trans", "blocktrans", "endblocktrans", "now",
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22 "regroup", "lorem", "ifchanged", "endifchanged", "firstof", "debug", "cycle",
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23 "csrf_token", "autoescape", "endautoescape", "spaceless", "endspaceless",
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24 "ssi", "templatetag", "verbatim", "endverbatim", "widthratio"],
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25 filters = ["add", "addslashes", "capfirst", "center", "cut", "date",
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26 "default", "default_if_none", "dictsort",
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27 "dictsortreversed", "divisibleby", "escape", "escapejs",
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28 "filesizeformat", "first", "floatformat", "force_escape",
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29 "get_digit", "iriencode", "join", "last", "length",
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30 "length_is", "linebreaks", "linebreaksbr", "linenumbers",
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31 "ljust", "lower", "make_list", "phone2numeric", "pluralize",
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32 "pprint", "random", "removetags", "rjust", "safe",
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33 "safeseq", "slice", "slugify", "stringformat", "striptags",
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34 "time", "timesince", "timeuntil", "title", "truncatechars",
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35 "truncatechars_html", "truncatewords", "truncatewords_html",
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36 "unordered_list", "upper", "urlencode", "urlize",
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37 "urlizetrunc", "wordcount", "wordwrap", "yesno"],
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38 operators = ["==", "!=", "<", ">", "<=", ">="],
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39 wordOperators = ["in", "not", "or", "and"];
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40
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41 keywords = new RegExp("^\\b(" + keywords.join("|") + ")\\b");
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42 filters = new RegExp("^\\b(" + filters.join("|") + ")\\b");
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43 operators = new RegExp("^\\b(" + operators.join("|") + ")\\b");
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44 wordOperators = new RegExp("^\\b(" + wordOperators.join("|") + ")\\b");
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45
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46 // We have to return "null" instead of null, in order to avoid string
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47 // styling as the default, when using Django templates inside HTML
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48 // element attributes
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49 function tokenBase (stream, state) {
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50 // Attempt to identify a variable, template or comment tag respectively
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51 if (stream.match("{{")) {
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52 state.tokenize = inVariable;
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53 return "tag";
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54 } else if (stream.match("{%")) {
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55 state.tokenize = inTag;
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56 return "tag";
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57 } else if (stream.match("{#")) {
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58 state.tokenize = inComment;
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59 return "comment";
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60 }
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61
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62 // Ignore completely any stream series that do not match the
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63 // Django template opening tags.
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64 while (stream.next() != null && !stream.match(/\{[{%#]/, false)) {}
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65 return null;
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66 }
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67
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68 // A string can be included in either single or double quotes (this is
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69 // the delimiter). Mark everything as a string until the start delimiter
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70 // occurs again.
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71 function inString (delimiter, previousTokenizer) {
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72 return function (stream, state) {
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73 if (!state.escapeNext && stream.eat(delimiter)) {
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74 state.tokenize = previousTokenizer;
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75 } else {
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76 if (state.escapeNext) {
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77 state.escapeNext = false;
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78 }
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79
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80 var ch = stream.next();
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81
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82 // Take into account the backslash for escaping characters, such as
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83 // the string delimiter.
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84 if (ch == "\\") {
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85 state.escapeNext = true;
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86 }
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87 }
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88
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89 return "string";
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90 };
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91 }
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92
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93 // Apply Django template variable syntax highlighting
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94 function inVariable (stream, state) {
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95 // Attempt to match a dot that precedes a property
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96 if (state.waitDot) {
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97 state.waitDot = false;
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98
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99 if (stream.peek() != ".") {
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100 return "null";
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101 }
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102
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103 // Dot followed by a non-word character should be considered an error.
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104 if (stream.match(/\.\W+/)) {
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105 return "error";
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106 } else if (stream.eat(".")) {
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107 state.waitProperty = true;
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108 return "null";
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109 } else {
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110 throw Error ("Unexpected error while waiting for property.");
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111 }
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112 }
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113
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114 // Attempt to match a pipe that precedes a filter
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115 if (state.waitPipe) {
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116 state.waitPipe = false;
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117
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118 if (stream.peek() != "|") {
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119 return "null";
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120 }
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121
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122 // Pipe followed by a non-word character should be considered an error.
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123 if (stream.match(/\.\W+/)) {
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124 return "error";
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125 } else if (stream.eat("|")) {
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126 state.waitFilter = true;
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127 return "null";
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128 } else {
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129 throw Error ("Unexpected error while waiting for filter.");
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130 }
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131 }
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132
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133 // Highlight properties
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134 if (state.waitProperty) {
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135 state.waitProperty = false;
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136 if (stream.match(/\b(\w+)\b/)) {
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137 state.waitDot = true; // A property can be followed by another property
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138 state.waitPipe = true; // A property can be followed by a filter
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139 return "property";
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140 }
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141 }
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142
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143 // Highlight filters
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144 if (state.waitFilter) {
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145 state.waitFilter = false;
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146 if (stream.match(filters)) {
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147 return "variable-2";
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148 }
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149 }
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150
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151 // Ignore all white spaces
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152 if (stream.eatSpace()) {
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153 state.waitProperty = false;
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154 return "null";
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155 }
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156
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157 // Identify numbers
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158 if (stream.match(/\b\d+(\.\d+)?\b/)) {
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159 return "number";
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160 }
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161
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162 // Identify strings
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163 if (stream.match("'")) {
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164 state.tokenize = inString("'", state.tokenize);
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165 return "string";
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166 } else if (stream.match('"')) {
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167 state.tokenize = inString('"', state.tokenize);
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168 return "string";
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169 }
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170
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171 // Attempt to find the variable
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172 if (stream.match(/\b(\w+)\b/) && !state.foundVariable) {
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173 state.waitDot = true;
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174 state.waitPipe = true; // A property can be followed by a filter
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175 return "variable";
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176 }
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177
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178 // If found closing tag reset
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179 if (stream.match("}}")) {
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180 state.waitProperty = null;
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181 state.waitFilter = null;
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182 state.waitDot = null;
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183 state.waitPipe = null;
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184 state.tokenize = tokenBase;
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185 return "tag";
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186 }
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187
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188 // If nothing was found, advance to the next character
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189 stream.next();
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190 return "null";
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191 }
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192
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193 function inTag (stream, state) {
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194 // Attempt to match a dot that precedes a property
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195 if (state.waitDot) {
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196 state.waitDot = false;
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197
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198 if (stream.peek() != ".") {
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199 return "null";
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200 }
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201
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202 // Dot followed by a non-word character should be considered an error.
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203 if (stream.match(/\.\W+/)) {
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204 return "error";
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205 } else if (stream.eat(".")) {
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206 state.waitProperty = true;
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207 return "null";
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208 } else {
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209 throw Error ("Unexpected error while waiting for property.");
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210 }
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211 }
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212
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213 // Attempt to match a pipe that precedes a filter
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214 if (state.waitPipe) {
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215 state.waitPipe = false;
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216
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217 if (stream.peek() != "|") {
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218 return "null";
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219 }
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220
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221 // Pipe followed by a non-word character should be considered an error.
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222 if (stream.match(/\.\W+/)) {
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223 return "error";
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224 } else if (stream.eat("|")) {
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225 state.waitFilter = true;
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226 return "null";
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227 } else {
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228 throw Error ("Unexpected error while waiting for filter.");
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229 }
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230 }
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231
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232 // Highlight properties
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233 if (state.waitProperty) {
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234 state.waitProperty = false;
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235 if (stream.match(/\b(\w+)\b/)) {
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236 state.waitDot = true; // A property can be followed by another property
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237 state.waitPipe = true; // A property can be followed by a filter
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238 return "property";
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239 }
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240 }
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241
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242 // Highlight filters
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243 if (state.waitFilter) {
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244 state.waitFilter = false;
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245 if (stream.match(filters)) {
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246 return "variable-2";
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247 }
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248 }
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249
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250 // Ignore all white spaces
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251 if (stream.eatSpace()) {
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252 state.waitProperty = false;
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253 return "null";
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254 }
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255
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256 // Identify numbers
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257 if (stream.match(/\b\d+(\.\d+)?\b/)) {
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258 return "number";
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259 }
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260
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261 // Identify strings
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262 if (stream.match("'")) {
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263 state.tokenize = inString("'", state.tokenize);
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264 return "string";
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265 } else if (stream.match('"')) {
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266 state.tokenize = inString('"', state.tokenize);
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267 return "string";
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268 }
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269
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270 // Attempt to match an operator
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271 if (stream.match(operators)) {
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272 return "operator";
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273 }
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274
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275 // Attempt to match a word operator
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276 if (stream.match(wordOperators)) {
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277 return "keyword";
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278 }
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279
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280 // Attempt to match a keyword
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281 var keywordMatch = stream.match(keywords);
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282 if (keywordMatch) {
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283 if (keywordMatch[0] == "comment") {
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284 state.blockCommentTag = true;
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285 }
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286 return "keyword";
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287 }
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288
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289 // Attempt to match a variable
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290 if (stream.match(/\b(\w+)\b/)) {
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291 state.waitDot = true;
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292 state.waitPipe = true; // A property can be followed by a filter
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293 return "variable";
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294 }
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295
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296 // If found closing tag reset
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297 if (stream.match("%}")) {
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298 state.waitProperty = null;
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299 state.waitFilter = null;
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300 state.waitDot = null;
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301 state.waitPipe = null;
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302 // If the tag that closes is a block comment tag, we want to mark the
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303 // following code as comment, until the tag closes.
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304 if (state.blockCommentTag) {
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305 state.blockCommentTag = false; // Release the "lock"
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306 state.tokenize = inBlockComment;
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307 } else {
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308 state.tokenize = tokenBase;
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309 }
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310 return "tag";
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311 }
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312
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313 // If nothing was found, advance to the next character
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314 stream.next();
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315 return "null";
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316 }
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317
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318 // Mark everything as comment inside the tag and the tag itself.
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319 function inComment (stream, state) {
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320 if (stream.match(/^.*?#\}/)) state.tokenize = tokenBase
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321 else stream.skipToEnd()
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322 return "comment";
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323 }
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324
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325 // Mark everything as a comment until the `blockcomment` tag closes.
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326 function inBlockComment (stream, state) {
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327 if (stream.match(/\{%\s*endcomment\s*%\}/, false)) {
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328 state.tokenize = inTag;
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329 stream.match("{%");
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330 return "tag";
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331 } else {
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332 stream.next();
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333 return "comment";
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334 }
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335 }
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336
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337 return {
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338 startState: function () {
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339 return {tokenize: tokenBase};
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340 },
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341 token: function (stream, state) {
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342 return state.tokenize(stream, state);
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343 },
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344 blockCommentStart: "{% comment %}",
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345 blockCommentEnd: "{% endcomment %}"
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346 };
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347 });
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348
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349 CodeMirror.defineMode("django", function(config) {
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350 var htmlBase = CodeMirror.getMode(config, "text/html");
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351 var djangoInner = CodeMirror.getMode(config, "django:inner");
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352 return CodeMirror.overlayMode(htmlBase, djangoInner);
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353 });
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354
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355 CodeMirror.defineMIME("text/x-django", "django");
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356 });
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