Mercurial > zeropaste
annotate vendor/assets/javascripts/prettify.js @ 282:4411631db561
Also ignores .bundle.
author | edogawaconan <me@myconan.net> |
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date | Tue, 15 Oct 2013 18:56:10 +0000 |
parents | 183e8560a337 |
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1 // Copyright (C) 2006 Google Inc. |
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2 // |
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3 // Licensed under the Apache License, Version 2.0 (the "License"); |
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4 // you may not use this file except in compliance with the License. |
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5 // You may obtain a copy of the License at |
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6 // |
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7 // http://www.apache.org/licenses/LICENSE-2.0 |
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8 // |
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9 // Unless required by applicable law or agreed to in writing, software |
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10 // distributed under the License is distributed on an "AS IS" BASIS, |
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11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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12 // See the License for the specific language governing permissions and |
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13 // limitations under the License. |
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14 |
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15 |
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16 /** |
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17 * @fileoverview |
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18 * some functions for browser-side pretty printing of code contained in html. |
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19 * |
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20 * <p> |
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21 * For a fairly comprehensive set of languages see the |
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22 * <a href="http://google-code-prettify.googlecode.com/svn/trunk/README.html#langs">README</a> |
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23 * file that came with this source. At a minimum, the lexer should work on a |
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24 * number of languages including C and friends, Java, Python, Bash, SQL, HTML, |
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25 * XML, CSS, Javascript, and Makefiles. It works passably on Ruby, PHP and Awk |
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26 * and a subset of Perl, but, because of commenting conventions, doesn't work on |
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27 * Smalltalk, Lisp-like, or CAML-like languages without an explicit lang class. |
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28 * <p> |
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29 * Usage: <ol> |
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30 * <li> include this source file in an html page via |
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31 * {@code <script type="text/javascript" src="/path/to/prettify.js"></script>} |
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32 * <li> define style rules. See the example page for examples. |
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33 * <li> mark the {@code <pre>} and {@code <code>} tags in your source with |
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34 * {@code class=prettyprint.} |
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35 * You can also use the (html deprecated) {@code <xmp>} tag, but the pretty |
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36 * printer needs to do more substantial DOM manipulations to support that, so |
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37 * some css styles may not be preserved. |
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38 * </ol> |
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39 * That's it. I wanted to keep the API as simple as possible, so there's no |
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40 * need to specify which language the code is in, but if you wish, you can add |
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41 * another class to the {@code <pre>} or {@code <code>} element to specify the |
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42 * language, as in {@code <pre class="prettyprint lang-java">}. Any class that |
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43 * starts with "lang-" followed by a file extension, specifies the file type. |
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44 * See the "lang-*.js" files in this directory for code that implements |
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45 * per-language file handlers. |
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46 * <p> |
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47 * Change log:<br> |
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48 * cbeust, 2006/08/22 |
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49 * <blockquote> |
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50 * Java annotations (start with "@") are now captured as literals ("lit") |
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51 * </blockquote> |
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52 * @requires console |
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53 */ |
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54 |
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55 // JSLint declarations |
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56 /*global console, document, navigator, setTimeout, window, define */ |
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57 |
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58 /** @define {boolean} */ |
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59 var IN_GLOBAL_SCOPE = true; |
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60 |
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61 /** |
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62 * Split {@code prettyPrint} into multiple timeouts so as not to interfere with |
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63 * UI events. |
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64 * If set to {@code false}, {@code prettyPrint()} is synchronous. |
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65 */ |
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66 window['PR_SHOULD_USE_CONTINUATION'] = true; |
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67 |
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68 /** |
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69 * Pretty print a chunk of code. |
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70 * @param {string} sourceCodeHtml The HTML to pretty print. |
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71 * @param {string} opt_langExtension The language name to use. |
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72 * Typically, a filename extension like 'cpp' or 'java'. |
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73 * @param {number|boolean} opt_numberLines True to number lines, |
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74 * or the 1-indexed number of the first line in sourceCodeHtml. |
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75 * @return {string} code as html, but prettier |
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76 */ |
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77 var prettyPrintOne; |
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78 /** |
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79 * Find all the {@code <pre>} and {@code <code>} tags in the DOM with |
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80 * {@code class=prettyprint} and prettify them. |
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81 * |
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82 * @param {Function} opt_whenDone called when prettifying is done. |
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83 * @param {HTMLElement|HTMLDocument} opt_root an element or document |
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84 * containing all the elements to pretty print. |
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85 * Defaults to {@code document.body}. |
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86 */ |
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87 var prettyPrint; |
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88 |
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89 |
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90 (function () { |
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91 var win = window; |
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92 // Keyword lists for various languages. |
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93 // We use things that coerce to strings to make them compact when minified |
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94 // and to defeat aggressive optimizers that fold large string constants. |
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95 var FLOW_CONTROL_KEYWORDS = ["break,continue,do,else,for,if,return,while"]; |
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96 var C_KEYWORDS = [FLOW_CONTROL_KEYWORDS,"auto,case,char,const,default," + |
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97 "double,enum,extern,float,goto,inline,int,long,register,short,signed," + |
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98 "sizeof,static,struct,switch,typedef,union,unsigned,void,volatile"]; |
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99 var COMMON_KEYWORDS = [C_KEYWORDS,"catch,class,delete,false,import," + |
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100 "new,operator,private,protected,public,this,throw,true,try,typeof"]; |
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101 var CPP_KEYWORDS = [COMMON_KEYWORDS,"alignof,align_union,asm,axiom,bool," + |
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102 "concept,concept_map,const_cast,constexpr,decltype,delegate," + |
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103 "dynamic_cast,explicit,export,friend,generic,late_check," + |
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104 "mutable,namespace,nullptr,property,reinterpret_cast,static_assert," + |
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105 "static_cast,template,typeid,typename,using,virtual,where"]; |
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106 var JAVA_KEYWORDS = [COMMON_KEYWORDS, |
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107 "abstract,assert,boolean,byte,extends,final,finally,implements,import," + |
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108 "instanceof,interface,null,native,package,strictfp,super,synchronized," + |
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109 "throws,transient"]; |
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110 var CSHARP_KEYWORDS = [JAVA_KEYWORDS, |
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111 "as,base,by,checked,decimal,delegate,descending,dynamic,event," + |
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112 "fixed,foreach,from,group,implicit,in,internal,into,is,let," + |
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113 "lock,object,out,override,orderby,params,partial,readonly,ref,sbyte," + |
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114 "sealed,stackalloc,string,select,uint,ulong,unchecked,unsafe,ushort," + |
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115 "var,virtual,where"]; |
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116 var COFFEE_KEYWORDS = "all,and,by,catch,class,else,extends,false,finally," + |
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117 "for,if,in,is,isnt,loop,new,no,not,null,of,off,on,or,return,super,then," + |
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118 "throw,true,try,unless,until,when,while,yes"; |
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119 var JSCRIPT_KEYWORDS = [COMMON_KEYWORDS, |
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120 "debugger,eval,export,function,get,null,set,undefined,var,with," + |
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121 "Infinity,NaN"]; |
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122 var PERL_KEYWORDS = "caller,delete,die,do,dump,elsif,eval,exit,foreach,for," + |
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123 "goto,if,import,last,local,my,next,no,our,print,package,redo,require," + |
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124 "sub,undef,unless,until,use,wantarray,while,BEGIN,END"; |
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125 var PYTHON_KEYWORDS = [FLOW_CONTROL_KEYWORDS, "and,as,assert,class,def,del," + |
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126 "elif,except,exec,finally,from,global,import,in,is,lambda," + |
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127 "nonlocal,not,or,pass,print,raise,try,with,yield," + |
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128 "False,True,None"]; |
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129 var RUBY_KEYWORDS = [FLOW_CONTROL_KEYWORDS, "alias,and,begin,case,class," + |
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130 "def,defined,elsif,end,ensure,false,in,module,next,nil,not,or,redo," + |
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131 "rescue,retry,self,super,then,true,undef,unless,until,when,yield," + |
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132 "BEGIN,END"]; |
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133 var RUST_KEYWORDS = [FLOW_CONTROL_KEYWORDS, "as,assert,const,copy,drop," + |
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134 "enum,extern,fail,false,fn,impl,let,log,loop,match,mod,move,mut,priv," + |
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135 "pub,pure,ref,self,static,struct,true,trait,type,unsafe,use"]; |
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136 var SH_KEYWORDS = [FLOW_CONTROL_KEYWORDS, "case,done,elif,esac,eval,fi," + |
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137 "function,in,local,set,then,until"]; |
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138 var ALL_KEYWORDS = [ |
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139 CPP_KEYWORDS, CSHARP_KEYWORDS, JSCRIPT_KEYWORDS, PERL_KEYWORDS, |
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140 PYTHON_KEYWORDS, RUBY_KEYWORDS, SH_KEYWORDS]; |
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141 var C_TYPES = /^(DIR|FILE|vector|(de|priority_)?queue|list|stack|(const_)?iterator|(multi)?(set|map)|bitset|u?(int|float)\d*)\b/; |
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142 |
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143 // token style names. correspond to css classes |
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144 /** |
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145 * token style for a string literal |
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146 * @const |
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147 */ |
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148 var PR_STRING = 'str'; |
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149 /** |
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150 * token style for a keyword |
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151 * @const |
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152 */ |
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153 var PR_KEYWORD = 'kwd'; |
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154 /** |
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155 * token style for a comment |
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156 * @const |
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157 */ |
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158 var PR_COMMENT = 'com'; |
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159 /** |
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160 * token style for a type |
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161 * @const |
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162 */ |
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163 var PR_TYPE = 'typ'; |
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164 /** |
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165 * token style for a literal value. e.g. 1, null, true. |
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166 * @const |
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167 */ |
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168 var PR_LITERAL = 'lit'; |
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169 /** |
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170 * token style for a punctuation string. |
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171 * @const |
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172 */ |
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173 var PR_PUNCTUATION = 'pun'; |
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174 /** |
220
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175 * token style for plain text. |
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176 * @const |
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177 */ |
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178 var PR_PLAIN = 'pln'; |
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179 |
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180 /** |
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181 * token style for an sgml tag. |
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182 * @const |
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183 */ |
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184 var PR_TAG = 'tag'; |
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185 /** |
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186 * token style for a markup declaration such as a DOCTYPE. |
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187 * @const |
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188 */ |
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189 var PR_DECLARATION = 'dec'; |
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190 /** |
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191 * token style for embedded source. |
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192 * @const |
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193 */ |
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194 var PR_SOURCE = 'src'; |
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195 /** |
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196 * token style for an sgml attribute name. |
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197 * @const |
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198 */ |
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199 var PR_ATTRIB_NAME = 'atn'; |
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200 /** |
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201 * token style for an sgml attribute value. |
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202 * @const |
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203 */ |
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204 var PR_ATTRIB_VALUE = 'atv'; |
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205 |
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206 /** |
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207 * A class that indicates a section of markup that is not code, e.g. to allow |
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208 * embedding of line numbers within code listings. |
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209 * @const |
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210 */ |
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211 var PR_NOCODE = 'nocode'; |
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212 |
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213 |
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214 |
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215 /** |
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216 * A set of tokens that can precede a regular expression literal in |
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217 * javascript |
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218 * http://web.archive.org/web/20070717142515/http://www.mozilla.org/js/language/js20/rationale/syntax.html |
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219 * has the full list, but I've removed ones that might be problematic when |
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220 * seen in languages that don't support regular expression literals. |
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221 * |
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222 * <p>Specifically, I've removed any keywords that can't precede a regexp |
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223 * literal in a syntactically legal javascript program, and I've removed the |
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224 * "in" keyword since it's not a keyword in many languages, and might be used |
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225 * as a count of inches. |
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226 * |
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227 * <p>The link above does not accurately describe EcmaScript rules since |
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228 * it fails to distinguish between (a=++/b/i) and (a++/b/i) but it works |
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229 * very well in practice. |
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230 * |
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231 * @private |
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232 * @const |
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233 */ |
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234 var REGEXP_PRECEDER_PATTERN = '(?:^^\\.?|[+-]|[!=]=?=?|\\#|%=?|&&?=?|\\(|\\*=?|[+\\-]=|->|\\/=?|::?|<<?=?|>>?>?=?|,|;|\\?|@|\\[|~|{|\\^\\^?=?|\\|\\|?=?|break|case|continue|delete|do|else|finally|instanceof|return|throw|try|typeof)\\s*'; |
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235 |
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236 // CAVEAT: this does not properly handle the case where a regular |
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237 // expression immediately follows another since a regular expression may |
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238 // have flags for case-sensitivity and the like. Having regexp tokens |
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239 // adjacent is not valid in any language I'm aware of, so I'm punting. |
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240 // TODO: maybe style special characters inside a regexp as punctuation. |
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241 |
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242 /** |
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243 * Given a group of {@link RegExp}s, returns a {@code RegExp} that globally |
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244 * matches the union of the sets of strings matched by the input RegExp. |
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245 * Since it matches globally, if the input strings have a start-of-input |
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246 * anchor (/^.../), it is ignored for the purposes of unioning. |
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247 * @param {Array.<RegExp>} regexs non multiline, non-global regexs. |
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248 * @return {RegExp} a global regex. |
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249 */ |
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250 function combinePrefixPatterns(regexs) { |
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251 var capturedGroupIndex = 0; |
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252 |
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253 var needToFoldCase = false; |
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254 var ignoreCase = false; |
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255 for (var i = 0, n = regexs.length; i < n; ++i) { |
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256 var regex = regexs[i]; |
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257 if (regex.ignoreCase) { |
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258 ignoreCase = true; |
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259 } else if (/[a-z]/i.test(regex.source.replace( |
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260 /\\u[0-9a-f]{4}|\\x[0-9a-f]{2}|\\[^ux]/gi, ''))) { |
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261 needToFoldCase = true; |
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262 ignoreCase = false; |
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263 break; |
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264 } |
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265 } |
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266 |
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267 var escapeCharToCodeUnit = { |
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268 'b': 8, |
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269 't': 9, |
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270 'n': 0xa, |
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271 'v': 0xb, |
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272 'f': 0xc, |
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273 'r': 0xd |
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274 }; |
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275 |
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276 function decodeEscape(charsetPart) { |
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277 var cc0 = charsetPart.charCodeAt(0); |
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278 if (cc0 !== 92 /* \\ */) { |
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279 return cc0; |
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280 } |
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281 var c1 = charsetPart.charAt(1); |
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282 cc0 = escapeCharToCodeUnit[c1]; |
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283 if (cc0) { |
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284 return cc0; |
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285 } else if ('0' <= c1 && c1 <= '7') { |
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286 return parseInt(charsetPart.substring(1), 8); |
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287 } else if (c1 === 'u' || c1 === 'x') { |
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288 return parseInt(charsetPart.substring(2), 16); |
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289 } else { |
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290 return charsetPart.charCodeAt(1); |
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291 } |
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292 } |
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293 |
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294 function encodeEscape(charCode) { |
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295 if (charCode < 0x20) { |
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296 return (charCode < 0x10 ? '\\x0' : '\\x') + charCode.toString(16); |
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297 } |
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298 var ch = String.fromCharCode(charCode); |
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299 return (ch === '\\' || ch === '-' || ch === ']' || ch === '^') |
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300 ? "\\" + ch : ch; |
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301 } |
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302 |
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303 function caseFoldCharset(charSet) { |
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304 var charsetParts = charSet.substring(1, charSet.length - 1).match( |
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305 new RegExp( |
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306 '\\\\u[0-9A-Fa-f]{4}' |
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307 + '|\\\\x[0-9A-Fa-f]{2}' |
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308 + '|\\\\[0-3][0-7]{0,2}' |
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309 + '|\\\\[0-7]{1,2}' |
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310 + '|\\\\[\\s\\S]' |
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311 + '|-' |
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312 + '|[^-\\\\]', |
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313 'g')); |
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314 var ranges = []; |
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315 var inverse = charsetParts[0] === '^'; |
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316 |
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317 var out = ['[']; |
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318 if (inverse) { out.push('^'); } |
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319 |
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320 for (var i = inverse ? 1 : 0, n = charsetParts.length; i < n; ++i) { |
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321 var p = charsetParts[i]; |
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322 if (/\\[bdsw]/i.test(p)) { // Don't muck with named groups. |
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323 out.push(p); |
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324 } else { |
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325 var start = decodeEscape(p); |
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326 var end; |
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327 if (i + 2 < n && '-' === charsetParts[i + 1]) { |
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328 end = decodeEscape(charsetParts[i + 2]); |
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329 i += 2; |
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330 } else { |
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331 end = start; |
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332 } |
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333 ranges.push([start, end]); |
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334 // If the range might intersect letters, then expand it. |
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335 // This case handling is too simplistic. |
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336 // It does not deal with non-latin case folding. |
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337 // It works for latin source code identifiers though. |
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338 if (!(end < 65 || start > 122)) { |
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339 if (!(end < 65 || start > 90)) { |
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340 ranges.push([Math.max(65, start) | 32, Math.min(end, 90) | 32]); |
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341 } |
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342 if (!(end < 97 || start > 122)) { |
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343 ranges.push([Math.max(97, start) & ~32, Math.min(end, 122) & ~32]); |
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344 } |
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345 } |
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346 } |
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347 } |
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348 |
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349 // [[1, 10], [3, 4], [8, 12], [14, 14], [16, 16], [17, 17]] |
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350 // -> [[1, 12], [14, 14], [16, 17]] |
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351 ranges.sort(function (a, b) { return (a[0] - b[0]) || (b[1] - a[1]); }); |
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352 var consolidatedRanges = []; |
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353 var lastRange = []; |
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354 for (var i = 0; i < ranges.length; ++i) { |
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355 var range = ranges[i]; |
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356 if (range[0] <= lastRange[1] + 1) { |
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357 lastRange[1] = Math.max(lastRange[1], range[1]); |
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358 } else { |
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359 consolidatedRanges.push(lastRange = range); |
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360 } |
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361 } |
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362 |
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363 for (var i = 0; i < consolidatedRanges.length; ++i) { |
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364 var range = consolidatedRanges[i]; |
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365 out.push(encodeEscape(range[0])); |
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366 if (range[1] > range[0]) { |
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367 if (range[1] + 1 > range[0]) { out.push('-'); } |
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368 out.push(encodeEscape(range[1])); |
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369 } |
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370 } |
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371 out.push(']'); |
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372 return out.join(''); |
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373 } |
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374 |
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375 function allowAnywhereFoldCaseAndRenumberGroups(regex) { |
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376 // Split into character sets, escape sequences, punctuation strings |
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377 // like ('(', '(?:', ')', '^'), and runs of characters that do not |
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378 // include any of the above. |
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379 var parts = regex.source.match( |
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380 new RegExp( |
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381 '(?:' |
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382 + '\\[(?:[^\\x5C\\x5D]|\\\\[\\s\\S])*\\]' // a character set |
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383 + '|\\\\u[A-Fa-f0-9]{4}' // a unicode escape |
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384 + '|\\\\x[A-Fa-f0-9]{2}' // a hex escape |
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385 + '|\\\\[0-9]+' // a back-reference or octal escape |
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386 + '|\\\\[^ux0-9]' // other escape sequence |
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387 + '|\\(\\?[:!=]' // start of a non-capturing group |
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388 + '|[\\(\\)\\^]' // start/end of a group, or line start |
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389 + '|[^\\x5B\\x5C\\(\\)\\^]+' // run of other characters |
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390 + ')', |
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391 'g')); |
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392 var n = parts.length; |
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393 |
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394 // Maps captured group numbers to the number they will occupy in |
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395 // the output or to -1 if that has not been determined, or to |
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396 // undefined if they need not be capturing in the output. |
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397 var capturedGroups = []; |
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398 |
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399 // Walk over and identify back references to build the capturedGroups |
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400 // mapping. |
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401 for (var i = 0, groupIndex = 0; i < n; ++i) { |
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402 var p = parts[i]; |
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403 if (p === '(') { |
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404 // groups are 1-indexed, so max group index is count of '(' |
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405 ++groupIndex; |
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406 } else if ('\\' === p.charAt(0)) { |
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407 var decimalValue = +p.substring(1); |
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408 if (decimalValue) { |
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409 if (decimalValue <= groupIndex) { |
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410 capturedGroups[decimalValue] = -1; |
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411 } else { |
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412 // Replace with an unambiguous escape sequence so that |
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413 // an octal escape sequence does not turn into a backreference |
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414 // to a capturing group from an earlier regex. |
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415 parts[i] = encodeEscape(decimalValue); |
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416 } |
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417 } |
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418 } |
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419 } |
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420 |
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421 // Renumber groups and reduce capturing groups to non-capturing groups |
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422 // where possible. |
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423 for (var i = 1; i < capturedGroups.length; ++i) { |
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424 if (-1 === capturedGroups[i]) { |
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425 capturedGroups[i] = ++capturedGroupIndex; |
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426 } |
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427 } |
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428 for (var i = 0, groupIndex = 0; i < n; ++i) { |
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429 var p = parts[i]; |
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430 if (p === '(') { |
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431 ++groupIndex; |
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432 if (!capturedGroups[groupIndex]) { |
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433 parts[i] = '(?:'; |
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434 } |
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435 } else if ('\\' === p.charAt(0)) { |
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436 var decimalValue = +p.substring(1); |
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437 if (decimalValue && decimalValue <= groupIndex) { |
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438 parts[i] = '\\' + capturedGroups[decimalValue]; |
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439 } |
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440 } |
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441 } |
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442 |
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443 // Remove any prefix anchors so that the output will match anywhere. |
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444 // ^^ really does mean an anchored match though. |
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445 for (var i = 0; i < n; ++i) { |
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446 if ('^' === parts[i] && '^' !== parts[i + 1]) { parts[i] = ''; } |
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447 } |
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448 |
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449 // Expand letters to groups to handle mixing of case-sensitive and |
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450 // case-insensitive patterns if necessary. |
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451 if (regex.ignoreCase && needToFoldCase) { |
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452 for (var i = 0; i < n; ++i) { |
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453 var p = parts[i]; |
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454 var ch0 = p.charAt(0); |
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455 if (p.length >= 2 && ch0 === '[') { |
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456 parts[i] = caseFoldCharset(p); |
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457 } else if (ch0 !== '\\') { |
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458 // TODO: handle letters in numeric escapes. |
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459 parts[i] = p.replace( |
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460 /[a-zA-Z]/g, |
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461 function (ch) { |
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462 var cc = ch.charCodeAt(0); |
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463 return '[' + String.fromCharCode(cc & ~32, cc | 32) + ']'; |
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464 }); |
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465 } |
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466 } |
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467 } |
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468 |
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469 return parts.join(''); |
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470 } |
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471 |
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472 var rewritten = []; |
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473 for (var i = 0, n = regexs.length; i < n; ++i) { |
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474 var regex = regexs[i]; |
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475 if (regex.global || regex.multiline) { throw new Error('' + regex); } |
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476 rewritten.push( |
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477 '(?:' + allowAnywhereFoldCaseAndRenumberGroups(regex) + ')'); |
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478 } |
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479 |
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480 return new RegExp(rewritten.join('|'), ignoreCase ? 'gi' : 'g'); |
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481 } |
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482 |
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483 /** |
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484 * Split markup into a string of source code and an array mapping ranges in |
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485 * that string to the text nodes in which they appear. |
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486 * |
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487 * <p> |
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488 * The HTML DOM structure:</p> |
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489 * <pre> |
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490 * (Element "p" |
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491 * (Element "b" |
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492 * (Text "print ")) ; #1 |
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493 * (Text "'Hello '") ; #2 |
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494 * (Element "br") ; #3 |
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495 * (Text " + 'World';")) ; #4 |
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496 * </pre> |
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497 * <p> |
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498 * corresponds to the HTML |
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499 * {@code <p><b>print </b>'Hello '<br> + 'World';</p>}.</p> |
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500 * |
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501 * <p> |
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502 * It will produce the output:</p> |
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503 * <pre> |
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504 * { |
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505 * sourceCode: "print 'Hello '\n + 'World';", |
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506 * // 1 2 |
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507 * // 012345678901234 5678901234567 |
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508 * spans: [0, #1, 6, #2, 14, #3, 15, #4] |
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509 * } |
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510 * </pre> |
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511 * <p> |
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512 * where #1 is a reference to the {@code "print "} text node above, and so |
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513 * on for the other text nodes. |
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514 * </p> |
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515 * |
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516 * <p> |
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517 * The {@code} spans array is an array of pairs. Even elements are the start |
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518 * indices of substrings, and odd elements are the text nodes (or BR elements) |
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519 * that contain the text for those substrings. |
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520 * Substrings continue until the next index or the end of the source. |
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521 * </p> |
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522 * |
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523 * @param {Node} node an HTML DOM subtree containing source-code. |
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524 * @param {boolean} isPreformatted true if white-space in text nodes should |
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525 * be considered significant. |
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526 * @return {Object} source code and the text nodes in which they occur. |
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527 */ |
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528 function extractSourceSpans(node, isPreformatted) { |
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529 var nocode = /(?:^|\s)nocode(?:\s|$)/; |
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530 |
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531 var chunks = []; |
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532 var length = 0; |
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533 var spans = []; |
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534 var k = 0; |
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535 |
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536 function walk(node) { |
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537 var type = node.nodeType; |
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538 if (type == 1) { // Element |
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539 if (nocode.test(node.className)) { return; } |
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540 for (var child = node.firstChild; child; child = child.nextSibling) { |
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541 walk(child); |
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542 } |
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543 var nodeName = node.nodeName.toLowerCase(); |
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544 if ('br' === nodeName || 'li' === nodeName) { |
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545 chunks[k] = '\n'; |
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546 spans[k << 1] = length++; |
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547 spans[(k++ << 1) | 1] = node; |
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548 } |
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549 } else if (type == 3 || type == 4) { // Text |
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550 var text = node.nodeValue; |
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551 if (text.length) { |
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552 if (!isPreformatted) { |
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553 text = text.replace(/[ \t\r\n]+/g, ' '); |
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554 } else { |
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555 text = text.replace(/\r\n?/g, '\n'); // Normalize newlines. |
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556 } |
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557 // TODO: handle tabs here? |
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558 chunks[k] = text; |
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559 spans[k << 1] = length; |
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560 length += text.length; |
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561 spans[(k++ << 1) | 1] = node; |
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562 } |
58
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563 } |
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564 } |
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565 |
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566 walk(node); |
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567 |
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568 return { |
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569 sourceCode: chunks.join('').replace(/\n$/, ''), |
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570 spans: spans |
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571 }; |
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572 } |
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573 |
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574 /** |
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575 * Apply the given language handler to sourceCode and add the resulting |
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576 * decorations to out. |
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577 * @param {number} basePos the index of sourceCode within the chunk of source |
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578 * whose decorations are already present on out. |
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579 */ |
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580 function appendDecorations(basePos, sourceCode, langHandler, out) { |
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581 if (!sourceCode) { return; } |
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582 var job = { |
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583 sourceCode: sourceCode, |
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584 basePos: basePos |
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585 }; |
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586 langHandler(job); |
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587 out.push.apply(out, job.decorations); |
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588 } |
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589 |
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590 var notWs = /\S/; |
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591 |
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592 /** |
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593 * Given an element, if it contains only one child element and any text nodes |
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594 * it contains contain only space characters, return the sole child element. |
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595 * Otherwise returns undefined. |
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596 * <p> |
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597 * This is meant to return the CODE element in {@code <pre><code ...>} when |
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598 * there is a single child element that contains all the non-space textual |
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599 * content, but not to return anything where there are multiple child elements |
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600 * as in {@code <pre><code>...</code><code>...</code></pre>} or when there |
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601 * is textual content. |
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602 */ |
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603 function childContentWrapper(element) { |
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604 var wrapper = undefined; |
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605 for (var c = element.firstChild; c; c = c.nextSibling) { |
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606 var type = c.nodeType; |
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607 wrapper = (type === 1) // Element Node |
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608 ? (wrapper ? element : c) |
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609 : (type === 3) // Text Node |
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610 ? (notWs.test(c.nodeValue) ? element : wrapper) |
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611 : wrapper; |
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612 } |
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613 return wrapper === element ? undefined : wrapper; |
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614 } |
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615 |
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616 /** Given triples of [style, pattern, context] returns a lexing function, |
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617 * The lexing function interprets the patterns to find token boundaries and |
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618 * returns a decoration list of the form |
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619 * [index_0, style_0, index_1, style_1, ..., index_n, style_n] |
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620 * where index_n is an index into the sourceCode, and style_n is a style |
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621 * constant like PR_PLAIN. index_n-1 <= index_n, and style_n-1 applies to |
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622 * all characters in sourceCode[index_n-1:index_n]. |
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623 * |
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624 * The stylePatterns is a list whose elements have the form |
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625 * [style : string, pattern : RegExp, DEPRECATED, shortcut : string]. |
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626 * |
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627 * Style is a style constant like PR_PLAIN, or can be a string of the |
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628 * form 'lang-FOO', where FOO is a language extension describing the |
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629 * language of the portion of the token in $1 after pattern executes. |
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630 * E.g., if style is 'lang-lisp', and group 1 contains the text |
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631 * '(hello (world))', then that portion of the token will be passed to the |
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632 * registered lisp handler for formatting. |
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633 * The text before and after group 1 will be restyled using this decorator |
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634 * so decorators should take care that this doesn't result in infinite |
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635 * recursion. For example, the HTML lexer rule for SCRIPT elements looks |
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636 * something like ['lang-js', /<[s]cript>(.+?)<\/script>/]. This may match |
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637 * '<script>foo()<\/script>', which would cause the current decorator to |
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638 * be called with '<script>' which would not match the same rule since |
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639 * group 1 must not be empty, so it would be instead styled as PR_TAG by |
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640 * the generic tag rule. The handler registered for the 'js' extension would |
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641 * then be called with 'foo()', and finally, the current decorator would |
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642 * be called with '<\/script>' which would not match the original rule and |
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643 * so the generic tag rule would identify it as a tag. |
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644 * |
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645 * Pattern must only match prefixes, and if it matches a prefix, then that |
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646 * match is considered a token with the same style. |
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647 * |
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648 * Context is applied to the last non-whitespace, non-comment token |
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649 * recognized. |
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650 * |
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651 * Shortcut is an optional string of characters, any of which, if the first |
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652 * character, gurantee that this pattern and only this pattern matches. |
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653 * |
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654 * @param {Array} shortcutStylePatterns patterns that always start with |
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655 * a known character. Must have a shortcut string. |
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656 * @param {Array} fallthroughStylePatterns patterns that will be tried in |
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657 * order if the shortcut ones fail. May have shortcuts. |
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658 * |
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659 * @return {function (Object)} a |
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660 * function that takes source code and returns a list of decorations. |
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661 */ |
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662 function createSimpleLexer(shortcutStylePatterns, fallthroughStylePatterns) { |
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663 var shortcuts = {}; |
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664 var tokenizer; |
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665 (function () { |
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666 var allPatterns = shortcutStylePatterns.concat(fallthroughStylePatterns); |
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667 var allRegexs = []; |
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668 var regexKeys = {}; |
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669 for (var i = 0, n = allPatterns.length; i < n; ++i) { |
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670 var patternParts = allPatterns[i]; |
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671 var shortcutChars = patternParts[3]; |
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672 if (shortcutChars) { |
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673 for (var c = shortcutChars.length; --c >= 0;) { |
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674 shortcuts[shortcutChars.charAt(c)] = patternParts; |
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675 } |
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676 } |
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677 var regex = patternParts[1]; |
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678 var k = '' + regex; |
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679 if (!regexKeys.hasOwnProperty(k)) { |
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680 allRegexs.push(regex); |
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681 regexKeys[k] = null; |
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682 } |
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683 } |
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684 allRegexs.push(/[\0-\uffff]/); |
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685 tokenizer = combinePrefixPatterns(allRegexs); |
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686 })(); |
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687 |
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688 var nPatterns = fallthroughStylePatterns.length; |
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689 |
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690 /** |
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691 * Lexes job.sourceCode and produces an output array job.decorations of |
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692 * style classes preceded by the position at which they start in |
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693 * job.sourceCode in order. |
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694 * |
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695 * @param {Object} job an object like <pre>{ |
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696 * sourceCode: {string} sourceText plain text, |
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697 * basePos: {int} position of job.sourceCode in the larger chunk of |
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698 * sourceCode. |
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699 * }</pre> |
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700 */ |
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701 var decorate = function (job) { |
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702 var sourceCode = job.sourceCode, basePos = job.basePos; |
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703 /** Even entries are positions in source in ascending order. Odd enties |
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704 * are style markers (e.g., PR_COMMENT) that run from that position until |
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705 * the end. |
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706 * @type {Array.<number|string>} |
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707 */ |
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708 var decorations = [basePos, PR_PLAIN]; |
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709 var pos = 0; // index into sourceCode |
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710 var tokens = sourceCode.match(tokenizer) || []; |
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711 var styleCache = {}; |
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712 |
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713 for (var ti = 0, nTokens = tokens.length; ti < nTokens; ++ti) { |
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714 var token = tokens[ti]; |
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715 var style = styleCache[token]; |
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716 var match = void 0; |
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717 |
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Use mainline prettify instead of stealing from bootstrap.
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|
718 var isEmbedded; |
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Use mainline prettify instead of stealing from bootstrap.
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|
719 if (typeof style === 'string') { |
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720 isEmbedded = false; |
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Use mainline prettify instead of stealing from bootstrap.
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|
721 } else { |
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Use mainline prettify instead of stealing from bootstrap.
Edho Arief <edho@myconan.net>
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|
722 var patternParts = shortcuts[token.charAt(0)]; |
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Use mainline prettify instead of stealing from bootstrap.
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|
723 if (patternParts) { |
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Use mainline prettify instead of stealing from bootstrap.
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|
724 match = token.match(patternParts[1]); |
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725 style = patternParts[0]; |
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|
726 } else { |
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|
727 for (var i = 0; i < nPatterns; ++i) { |
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728 patternParts = fallthroughStylePatterns[i]; |
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Use mainline prettify instead of stealing from bootstrap.
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729 match = token.match(patternParts[1]); |
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Use mainline prettify instead of stealing from bootstrap.
Edho Arief <edho@myconan.net>
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|
730 if (match) { |
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|
731 style = patternParts[0]; |
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Use mainline prettify instead of stealing from bootstrap.
Edho Arief <edho@myconan.net>
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|
732 break; |
33b47c2160a3
Use mainline prettify instead of stealing from bootstrap.
Edho Arief <edho@myconan.net>
parents:
diff
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|
733 } |
33b47c2160a3
Use mainline prettify instead of stealing from bootstrap.
Edho Arief <edho@myconan.net>
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|
734 } |
33b47c2160a3
Use mainline prettify instead of stealing from bootstrap.
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|
735 |
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|
736 if (!match) { // make sure that we make progress |
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737 style = PR_PLAIN; |
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|
738 } |
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Edho Arief <edho@myconan.net>
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|
739 } |
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|
740 |
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741 isEmbedded = style.length >= 5 && 'lang-' === style.substring(0, 5); |
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742 if (isEmbedded && !(match && typeof match[1] === 'string')) { |
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743 isEmbedded = false; |
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|
744 style = PR_SOURCE; |
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|
745 } |
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|
746 |
33b47c2160a3
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|
747 if (!isEmbedded) { styleCache[token] = style; } |
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|
748 } |
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|
749 |
33b47c2160a3
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|
750 var tokenStart = pos; |
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|
751 pos += token.length; |
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|
752 |
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|
753 if (!isEmbedded) { |
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754 decorations.push(basePos + tokenStart, style); |
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755 } else { // Treat group 1 as an embedded block of source code. |
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756 var embeddedSource = match[1]; |
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757 var embeddedSourceStart = token.indexOf(embeddedSource); |
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758 var embeddedSourceEnd = embeddedSourceStart + embeddedSource.length; |
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759 if (match[2]) { |
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|
760 // If embeddedSource can be blank, then it would match at the |
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761 // beginning which would cause us to infinitely recurse on the |
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762 // entire token, so we catch the right context in match[2]. |
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763 embeddedSourceEnd = token.length - match[2].length; |
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764 embeddedSourceStart = embeddedSourceEnd - embeddedSource.length; |
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765 } |
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|
766 var lang = style.substring(5); |
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767 // Decorate the left of the embedded source |
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|
768 appendDecorations( |
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|
769 basePos + tokenStart, |
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|
770 token.substring(0, embeddedSourceStart), |
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|
771 decorate, decorations); |
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|
772 // Decorate the embedded source |
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diff
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|
773 appendDecorations( |
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diff
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|
774 basePos + tokenStart + embeddedSourceStart, |
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diff
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|
775 embeddedSource, |
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|
776 langHandlerForExtension(lang, embeddedSource), |
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|
777 decorations); |
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|
778 // Decorate the right of the embedded section |
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parents:
diff
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|
779 appendDecorations( |
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diff
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|
780 basePos + tokenStart + embeddedSourceEnd, |
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|
781 token.substring(embeddedSourceEnd), |
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|
782 decorate, decorations); |
33b47c2160a3
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parents:
diff
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|
783 } |
33b47c2160a3
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parents:
diff
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|
784 } |
33b47c2160a3
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|
785 job.decorations = decorations; |
33b47c2160a3
Use mainline prettify instead of stealing from bootstrap.
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diff
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|
786 }; |
33b47c2160a3
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parents:
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|
787 return decorate; |
33b47c2160a3
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parents:
diff
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|
788 } |
33b47c2160a3
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diff
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|
789 |
33b47c2160a3
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diff
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|
790 /** returns a function that produces a list of decorations from source text. |
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parents:
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|
791 * |
33b47c2160a3
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|
792 * This code treats ", ', and ` as string delimiters, and \ as a string |
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|
793 * escape. It does not recognize perl's qq() style strings. |
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diff
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|
794 * It has no special handling for double delimiter escapes as in basic, or |
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Edho Arief <edho@myconan.net>
parents:
diff
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|
795 * the tripled delimiters used in python, but should work on those regardless |
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|
796 * although in those cases a single string literal may be broken up into |
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|
797 * multiple adjacent string literals. |
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Use mainline prettify instead of stealing from bootstrap.
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|
798 * |
33b47c2160a3
Use mainline prettify instead of stealing from bootstrap.
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|
799 * It recognizes C, C++, and shell style comments. |
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diff
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|
800 * |
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|
801 * @param {Object} options a set of optional parameters. |
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|
802 * @return {function (Object)} a function that examines the source code |
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|
803 * in the input job and builds the decoration list. |
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|
804 */ |
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Use mainline prettify instead of stealing from bootstrap.
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|
805 function sourceDecorator(options) { |
33b47c2160a3
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|
806 var shortcutStylePatterns = [], fallthroughStylePatterns = []; |
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|
807 if (options['tripleQuotedStrings']) { |
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parents:
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|
808 // '''multi-line-string''', 'single-line-string', and double-quoted |
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|
809 shortcutStylePatterns.push( |
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|
810 [PR_STRING, /^(?:\'\'\'(?:[^\'\\]|\\[\s\S]|\'{1,2}(?=[^\']))*(?:\'\'\'|$)|\"\"\"(?:[^\"\\]|\\[\s\S]|\"{1,2}(?=[^\"]))*(?:\"\"\"|$)|\'(?:[^\\\']|\\[\s\S])*(?:\'|$)|\"(?:[^\\\"]|\\[\s\S])*(?:\"|$))/, |
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|
811 null, '\'"']); |
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|
812 } else if (options['multiLineStrings']) { |
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|
813 // 'multi-line-string', "multi-line-string" |
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|
814 shortcutStylePatterns.push( |
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|
815 [PR_STRING, /^(?:\'(?:[^\\\']|\\[\s\S])*(?:\'|$)|\"(?:[^\\\"]|\\[\s\S])*(?:\"|$)|\`(?:[^\\\`]|\\[\s\S])*(?:\`|$))/, |
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|
816 null, '\'"`']); |
33b47c2160a3
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diff
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|
817 } else { |
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|
818 // 'single-line-string', "single-line-string" |
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|
819 shortcutStylePatterns.push( |
33b47c2160a3
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parents:
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|
820 [PR_STRING, |
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|
821 /^(?:\'(?:[^\\\'\r\n]|\\.)*(?:\'|$)|\"(?:[^\\\"\r\n]|\\.)*(?:\"|$))/, |
33b47c2160a3
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parents:
diff
changeset
|
822 null, '"\'']); |
33b47c2160a3
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parents:
diff
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|
823 } |
33b47c2160a3
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parents:
diff
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|
824 if (options['verbatimStrings']) { |
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|
825 // verbatim-string-literal production from the C# grammar. See issue 93. |
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|
826 fallthroughStylePatterns.push( |
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|
827 [PR_STRING, /^@\"(?:[^\"]|\"\")*(?:\"|$)/, null]); |
33b47c2160a3
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parents:
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|
828 } |
33b47c2160a3
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|
829 var hc = options['hashComments']; |
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parents:
diff
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|
830 if (hc) { |
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parents:
diff
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|
831 if (options['cStyleComments']) { |
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|
832 if (hc > 1) { // multiline hash comments |
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|
833 shortcutStylePatterns.push( |
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|
834 [PR_COMMENT, /^#(?:##(?:[^#]|#(?!##))*(?:###|$)|.*)/, null, '#']); |
33b47c2160a3
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parents:
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|
835 } else { |
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836 // Stop C preprocessor declarations at an unclosed open comment |
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837 shortcutStylePatterns.push( |
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838 [PR_COMMENT, /^#(?:(?:define|e(?:l|nd)if|else|error|ifn?def|include|line|pragma|undef|warning)\b|[^\r\n]*)/, |
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839 null, '#']); |
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840 } |
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841 // #include <stdio.h> |
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842 fallthroughStylePatterns.push( |
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843 [PR_STRING, |
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844 /^<(?:(?:(?:\.\.\/)*|\/?)(?:[\w-]+(?:\/[\w-]+)+)?[\w-]+\.h(?:h|pp|\+\+)?|[a-z]\w*)>/, |
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845 null]); |
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846 } else { |
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847 shortcutStylePatterns.push([PR_COMMENT, /^#[^\r\n]*/, null, '#']); |
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848 } |
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849 } |
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850 if (options['cStyleComments']) { |
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851 fallthroughStylePatterns.push([PR_COMMENT, /^\/\/[^\r\n]*/, null]); |
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852 fallthroughStylePatterns.push( |
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853 [PR_COMMENT, /^\/\*[\s\S]*?(?:\*\/|$)/, null]); |
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854 } |
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855 var regexLiterals = options['regexLiterals']; |
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856 if (regexLiterals) { |
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857 /** |
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858 * @const |
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859 */ |
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860 var regexExcls = regexLiterals > 1 |
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861 ? '' // Multiline regex literals |
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862 : '\n\r'; |
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863 /** |
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864 * @const |
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865 */ |
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866 var regexAny = regexExcls ? '.' : '[\\S\\s]'; |
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867 /** |
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868 * @const |
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869 */ |
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870 var REGEX_LITERAL = ( |
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871 // A regular expression literal starts with a slash that is |
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872 // not followed by * or / so that it is not confused with |
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873 // comments. |
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874 '/(?=[^/*' + regexExcls + '])' |
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875 // and then contains any number of raw characters, |
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876 + '(?:[^/\\x5B\\x5C' + regexExcls + ']' |
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877 // escape sequences (\x5C), |
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878 + '|\\x5C' + regexAny |
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879 // or non-nesting character sets (\x5B\x5D); |
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880 + '|\\x5B(?:[^\\x5C\\x5D' + regexExcls + ']' |
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881 + '|\\x5C' + regexAny + ')*(?:\\x5D|$))+' |
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882 // finally closed by a /. |
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883 + '/'); |
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884 fallthroughStylePatterns.push( |
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885 ['lang-regex', |
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886 RegExp('^' + REGEXP_PRECEDER_PATTERN + '(' + REGEX_LITERAL + ')') |
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887 ]); |
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888 } |
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889 |
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890 var types = options['types']; |
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891 if (types) { |
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892 fallthroughStylePatterns.push([PR_TYPE, types]); |
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893 } |
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894 |
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895 var keywords = ("" + options['keywords']).replace(/^ | $/g, ''); |
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896 if (keywords.length) { |
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897 fallthroughStylePatterns.push( |
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898 [PR_KEYWORD, |
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899 new RegExp('^(?:' + keywords.replace(/[\s,]+/g, '|') + ')\\b'), |
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900 null]); |
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901 } |
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902 |
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903 shortcutStylePatterns.push([PR_PLAIN, /^\s+/, null, ' \r\n\t\xA0']); |
220
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904 |
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905 var punctuation = |
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906 // The Bash man page says |
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907 |
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908 // A word is a sequence of characters considered as a single |
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909 // unit by GRUB. Words are separated by metacharacters, |
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910 // which are the following plus space, tab, and newline: { } |
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911 // | & $ ; < > |
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912 // ... |
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913 |
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914 // A word beginning with # causes that word and all remaining |
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915 // characters on that line to be ignored. |
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916 |
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917 // which means that only a '#' after /(?:^|[{}|&$;<>\s])/ starts a |
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918 // comment but empirically |
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919 // $ echo {#} |
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920 // {#} |
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921 // $ echo \$# |
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922 // $# |
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923 // $ echo }# |
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924 // }# |
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925 |
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926 // so /(?:^|[|&;<>\s])/ is more appropriate. |
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927 |
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928 // http://gcc.gnu.org/onlinedocs/gcc-2.95.3/cpp_1.html#SEC3 |
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929 // suggests that this definition is compatible with a |
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930 // default mode that tries to use a single token definition |
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931 // to recognize both bash/python style comments and C |
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932 // preprocessor directives. |
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933 |
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934 // This definition of punctuation does not include # in the list of |
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935 // follow-on exclusions, so # will not be broken before if preceeded |
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936 // by a punctuation character. We could try to exclude # after |
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937 // [|&;<>] but that doesn't seem to cause many major problems. |
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938 // If that does turn out to be a problem, we should change the below |
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939 // when hc is truthy to include # in the run of punctuation characters |
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940 // only when not followint [|&;<>]. |
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941 '^.[^\\s\\w.$@\'"`/\\\\]*'; |
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942 if (options['regexLiterals']) { |
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943 punctuation += '(?!\s*\/)'; |
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944 } |
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945 |
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946 fallthroughStylePatterns.push( |
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947 // TODO(mikesamuel): recognize non-latin letters and numerals in idents |
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948 [PR_LITERAL, /^@[a-z_$][a-z_$@0-9]*/i, null], |
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949 [PR_TYPE, /^(?:[@_]?[A-Z]+[a-z][A-Za-z_$@0-9]*|\w+_t\b)/, null], |
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950 [PR_PLAIN, /^[a-z_$][a-z_$@0-9]*/i, null], |
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951 [PR_LITERAL, |
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952 new RegExp( |
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953 '^(?:' |
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954 // A hex number |
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955 + '0x[a-f0-9]+' |
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956 // or an octal or decimal number, |
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957 + '|(?:\\d(?:_\\d+)*\\d*(?:\\.\\d*)?|\\.\\d\\+)' |
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958 // possibly in scientific notation |
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959 + '(?:e[+\\-]?\\d+)?' |
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960 + ')' |
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961 // with an optional modifier like UL for unsigned long |
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962 + '[a-z]*', 'i'), |
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963 null, '0123456789'], |
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964 // Don't treat escaped quotes in bash as starting strings. |
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965 // See issue 144. |
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966 [PR_PLAIN, /^\\[\s\S]?/, null], |
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967 [PR_PUNCTUATION, new RegExp(punctuation), null]); |
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968 |
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969 return createSimpleLexer(shortcutStylePatterns, fallthroughStylePatterns); |
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970 } |
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971 |
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972 var decorateSource = sourceDecorator({ |
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973 'keywords': ALL_KEYWORDS, |
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974 'hashComments': true, |
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975 'cStyleComments': true, |
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976 'multiLineStrings': true, |
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977 'regexLiterals': true |
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978 }); |
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979 |
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980 /** |
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981 * Given a DOM subtree, wraps it in a list, and puts each line into its own |
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982 * list item. |
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983 * |
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984 * @param {Node} node modified in place. Its content is pulled into an |
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985 * HTMLOListElement, and each line is moved into a separate list item. |
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986 * This requires cloning elements, so the input might not have unique |
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987 * IDs after numbering. |
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988 * @param {boolean} isPreformatted true iff white-space in text nodes should |
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989 * be treated as significant. |
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990 */ |
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991 function numberLines(node, opt_startLineNum, isPreformatted) { |
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992 var nocode = /(?:^|\s)nocode(?:\s|$)/; |
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993 var lineBreak = /\r\n?|\n/; |
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994 |
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995 var document = node.ownerDocument; |
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996 |
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997 var li = document.createElement('li'); |
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998 while (node.firstChild) { |
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999 li.appendChild(node.firstChild); |
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1000 } |
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1001 // An array of lines. We split below, so this is initialized to one |
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1002 // un-split line. |
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1003 var listItems = [li]; |
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1004 |
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1005 function walk(node) { |
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1006 var type = node.nodeType; |
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1007 if (type == 1 && !nocode.test(node.className)) { // Element |
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1008 if ('br' === node.nodeName) { |
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1009 breakAfter(node); |
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1010 // Discard the <BR> since it is now flush against a </LI>. |
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1011 if (node.parentNode) { |
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1012 node.parentNode.removeChild(node); |
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1013 } |
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1014 } else { |
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1015 for (var child = node.firstChild; child; child = child.nextSibling) { |
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1016 walk(child); |
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1017 } |
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1018 } |
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1019 } else if ((type == 3 || type == 4) && isPreformatted) { // Text |
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1020 var text = node.nodeValue; |
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1021 var match = text.match(lineBreak); |
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1022 if (match) { |
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1023 var firstLine = text.substring(0, match.index); |
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1024 node.nodeValue = firstLine; |
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1025 var tail = text.substring(match.index + match[0].length); |
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1026 if (tail) { |
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1027 var parent = node.parentNode; |
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1028 parent.insertBefore( |
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1029 document.createTextNode(tail), node.nextSibling); |
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1030 } |
220
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1031 breakAfter(node); |
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1032 if (!firstLine) { |
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1033 // Don't leave blank text nodes in the DOM. |
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1034 node.parentNode.removeChild(node); |
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1035 } |
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1036 } |
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1037 } |
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1038 } |
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1039 |
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1040 // Split a line after the given node. |
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1041 function breakAfter(lineEndNode) { |
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1042 // If there's nothing to the right, then we can skip ending the line |
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1043 // here, and move root-wards since splitting just before an end-tag |
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1044 // would require us to create a bunch of empty copies. |
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1045 while (!lineEndNode.nextSibling) { |
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1046 lineEndNode = lineEndNode.parentNode; |
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1047 if (!lineEndNode) { return; } |
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1048 } |
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1049 |
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1050 function breakLeftOf(limit, copy) { |
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1051 // Clone shallowly if this node needs to be on both sides of the break. |
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1052 var rightSide = copy ? limit.cloneNode(false) : limit; |
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1053 var parent = limit.parentNode; |
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1054 if (parent) { |
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1055 // We clone the parent chain. |
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1056 // This helps us resurrect important styling elements that cross lines. |
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1057 // E.g. in <i>Foo<br>Bar</i> |
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1058 // should be rewritten to <li><i>Foo</i></li><li><i>Bar</i></li>. |
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1059 var parentClone = breakLeftOf(parent, 1); |
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1060 // Move the clone and everything to the right of the original |
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1061 // onto the cloned parent. |
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1062 var next = limit.nextSibling; |
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1063 parentClone.appendChild(rightSide); |
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1064 for (var sibling = next; sibling; sibling = next) { |
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1065 next = sibling.nextSibling; |
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1066 parentClone.appendChild(sibling); |
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1067 } |
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1068 } |
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1069 return rightSide; |
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1070 } |
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1071 |
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1072 var copiedListItem = breakLeftOf(lineEndNode.nextSibling, 0); |
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1073 |
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1074 // Walk the parent chain until we reach an unattached LI. |
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|
1075 for (var parent; |
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1076 // Check nodeType since IE invents document fragments. |
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1077 (parent = copiedListItem.parentNode) && parent.nodeType === 1;) { |
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1078 copiedListItem = parent; |
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1079 } |
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1080 // Put it on the list of lines for later processing. |
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1081 listItems.push(copiedListItem); |
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1082 } |
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1083 |
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1084 // Split lines while there are lines left to split. |
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1085 for (var i = 0; // Number of lines that have been split so far. |
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1086 i < listItems.length; // length updated by breakAfter calls. |
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1087 ++i) { |
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|
1088 walk(listItems[i]); |
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1089 } |
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1090 |
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1091 // Make sure numeric indices show correctly. |
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1092 if (opt_startLineNum === (opt_startLineNum|0)) { |
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1093 listItems[0].setAttribute('value', opt_startLineNum); |
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1094 } |
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1095 |
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1096 var ol = document.createElement('ol'); |
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1097 ol.className = 'linenums'; |
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1098 var offset = Math.max(0, ((opt_startLineNum - 1 /* zero index */)) | 0) || 0; |
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1099 for (var i = 0, n = listItems.length; i < n; ++i) { |
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1100 li = listItems[i]; |
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1101 // Stick a class on the LIs so that stylesheets can |
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1102 // color odd/even rows, or any other row pattern that |
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1103 // is co-prime with 10. |
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1104 li.className = 'L' + ((i + offset) % 10); |
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1105 if (!li.firstChild) { |
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1106 li.appendChild(document.createTextNode('\xA0')); |
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1107 } |
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1108 ol.appendChild(li); |
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1109 } |
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1110 |
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1111 node.appendChild(ol); |
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1112 } |
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1113 /** |
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1114 * Breaks {@code job.sourceCode} around style boundaries in |
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1115 * {@code job.decorations} and modifies {@code job.sourceNode} in place. |
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1116 * @param {Object} job like <pre>{ |
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1117 * sourceCode: {string} source as plain text, |
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1118 * sourceNode: {HTMLElement} the element containing the source, |
58
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1119 * spans: {Array.<number|Node>} alternating span start indices into source |
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1120 * and the text node or element (e.g. {@code <BR>}) corresponding to that |
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1121 * span. |
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1122 * decorations: {Array.<number|string} an array of style classes preceded |
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1123 * by the position at which they start in job.sourceCode in order |
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1124 * }</pre> |
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1125 * @private |
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1126 */ |
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1127 function recombineTagsAndDecorations(job) { |
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1128 var isIE8OrEarlier = /\bMSIE\s(\d+)/.exec(navigator.userAgent); |
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1129 isIE8OrEarlier = isIE8OrEarlier && +isIE8OrEarlier[1] <= 8; |
58
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1130 var newlineRe = /\n/g; |
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1131 |
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1132 var source = job.sourceCode; |
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1133 var sourceLength = source.length; |
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1134 // Index into source after the last code-unit recombined. |
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1135 var sourceIndex = 0; |
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1136 |
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1137 var spans = job.spans; |
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1138 var nSpans = spans.length; |
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1139 // Index into spans after the last span which ends at or before sourceIndex. |
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1140 var spanIndex = 0; |
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|
1141 |
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1142 var decorations = job.decorations; |
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1143 var nDecorations = decorations.length; |
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1144 // Index into decorations after the last decoration which ends at or before |
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1145 // sourceIndex. |
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1146 var decorationIndex = 0; |
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1147 |
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1148 // Remove all zero-length decorations. |
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1149 decorations[nDecorations] = sourceLength; |
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1150 var decPos, i; |
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1151 for (i = decPos = 0; i < nDecorations;) { |
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1152 if (decorations[i] !== decorations[i + 2]) { |
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1153 decorations[decPos++] = decorations[i++]; |
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1154 decorations[decPos++] = decorations[i++]; |
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1155 } else { |
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|
1156 i += 2; |
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|
1157 } |
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|
1158 } |
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|
1159 nDecorations = decPos; |
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|
1160 |
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|
1161 // Simplify decorations. |
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|
1162 for (i = decPos = 0; i < nDecorations;) { |
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1163 var startPos = decorations[i]; |
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1164 // Conflate all adjacent decorations that use the same style. |
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1165 var startDec = decorations[i + 1]; |
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|
1166 var end = i + 2; |
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|
1167 while (end + 2 <= nDecorations && decorations[end + 1] === startDec) { |
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|
1168 end += 2; |
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|
1169 } |
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|
1170 decorations[decPos++] = startPos; |
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|
1171 decorations[decPos++] = startDec; |
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|
1172 i = end; |
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|
1173 } |
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|
1174 |
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|
1175 nDecorations = decorations.length = decPos; |
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1176 |
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1177 var sourceNode = job.sourceNode; |
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|
1178 var oldDisplay; |
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1179 if (sourceNode) { |
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1180 oldDisplay = sourceNode.style.display; |
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1181 sourceNode.style.display = 'none'; |
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|
1182 } |
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|
1183 try { |
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|
1184 var decoration = null; |
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|
1185 while (spanIndex < nSpans) { |
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1186 var spanStart = spans[spanIndex]; |
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1187 var spanEnd = spans[spanIndex + 2] || sourceLength; |
58
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1188 |
220
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|
1189 var decEnd = decorations[decorationIndex + 2] || sourceLength; |
58
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|
1190 |
220
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|
1191 var end = Math.min(spanEnd, decEnd); |
58
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1192 |
220
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|
1193 var textNode = spans[spanIndex + 1]; |
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1194 var styledText; |
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|
1195 if (textNode.nodeType !== 1 // Don't muck with <BR>s or <LI>s |
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1196 // Don't introduce spans around empty text nodes. |
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1197 && (styledText = source.substring(sourceIndex, end))) { |
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1198 // This may seem bizarre, and it is. Emitting LF on IE causes the |
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1199 // code to display with spaces instead of line breaks. |
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1200 // Emitting Windows standard issue linebreaks (CRLF) causes a blank |
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1201 // space to appear at the beginning of every line but the first. |
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1202 // Emitting an old Mac OS 9 line separator makes everything spiffy. |
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1203 if (isIE8OrEarlier) { |
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1204 styledText = styledText.replace(newlineRe, '\r'); |
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1205 } |
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1206 textNode.nodeValue = styledText; |
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1207 var document = textNode.ownerDocument; |
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1208 var span = document.createElement('span'); |
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1209 span.className = decorations[decorationIndex + 1]; |
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1210 var parentNode = textNode.parentNode; |
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1211 parentNode.replaceChild(span, textNode); |
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1212 span.appendChild(textNode); |
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1213 if (sourceIndex < spanEnd) { // Split off a text node. |
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1214 spans[spanIndex + 1] = textNode |
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1215 // TODO: Possibly optimize by using '' if there's no flicker. |
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1216 = document.createTextNode(source.substring(end, spanEnd)); |
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1217 parentNode.insertBefore(textNode, span.nextSibling); |
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1218 } |
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1219 } |
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1220 |
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1221 sourceIndex = end; |
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1222 |
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1223 if (sourceIndex >= spanEnd) { |
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1224 spanIndex += 2; |
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1225 } |
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1226 if (sourceIndex >= decEnd) { |
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1227 decorationIndex += 2; |
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1228 } |
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1229 } |
220
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1230 } finally { |
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1231 if (sourceNode) { |
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1232 sourceNode.style.display = oldDisplay; |
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1233 } |
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1234 } |
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1235 } |
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1236 |
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1237 /** Maps language-specific file extensions to handlers. */ |
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1238 var langHandlerRegistry = {}; |
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1239 /** Register a language handler for the given file extensions. |
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1240 * @param {function (Object)} handler a function from source code to a list |
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1241 * of decorations. Takes a single argument job which describes the |
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1242 * state of the computation. The single parameter has the form |
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1243 * {@code { |
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1244 * sourceCode: {string} as plain text. |
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1245 * decorations: {Array.<number|string>} an array of style classes |
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1246 * preceded by the position at which they start in |
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1247 * job.sourceCode in order. |
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1248 * The language handler should assigned this field. |
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1249 * basePos: {int} the position of source in the larger source chunk. |
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1250 * All positions in the output decorations array are relative |
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1251 * to the larger source chunk. |
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1252 * } } |
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1253 * @param {Array.<string>} fileExtensions |
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1254 */ |
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1255 function registerLangHandler(handler, fileExtensions) { |
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1256 for (var i = fileExtensions.length; --i >= 0;) { |
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1257 var ext = fileExtensions[i]; |
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1258 if (!langHandlerRegistry.hasOwnProperty(ext)) { |
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1259 langHandlerRegistry[ext] = handler; |
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1260 } else if (win['console']) { |
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1261 console['warn']('cannot override language handler %s', ext); |
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1262 } |
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1263 } |
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1264 } |
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1265 function langHandlerForExtension(extension, source) { |
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1266 if (!(extension && langHandlerRegistry.hasOwnProperty(extension))) { |
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1267 // Treat it as markup if the first non whitespace character is a < and |
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1268 // the last non-whitespace character is a >. |
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1269 extension = /^\s*</.test(source) |
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1270 ? 'default-markup' |
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1271 : 'default-code'; |
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1272 } |
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1273 return langHandlerRegistry[extension]; |
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1274 } |
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1275 registerLangHandler(decorateSource, ['default-code']); |
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1276 registerLangHandler( |
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1277 createSimpleLexer( |
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1278 [], |
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1279 [ |
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1280 [PR_PLAIN, /^[^<?]+/], |
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1281 [PR_DECLARATION, /^<!\w[^>]*(?:>|$)/], |
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1282 [PR_COMMENT, /^<\!--[\s\S]*?(?:-\->|$)/], |
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1283 // Unescaped content in an unknown language |
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1284 ['lang-', /^<\?([\s\S]+?)(?:\?>|$)/], |
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1285 ['lang-', /^<%([\s\S]+?)(?:%>|$)/], |
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1286 [PR_PUNCTUATION, /^(?:<[%?]|[%?]>)/], |
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1287 ['lang-', /^<xmp\b[^>]*>([\s\S]+?)<\/xmp\b[^>]*>/i], |
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1288 // Unescaped content in javascript. (Or possibly vbscript). |
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1289 ['lang-js', /^<script\b[^>]*>([\s\S]*?)(<\/script\b[^>]*>)/i], |
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1290 // Contains unescaped stylesheet content |
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1291 ['lang-css', /^<style\b[^>]*>([\s\S]*?)(<\/style\b[^>]*>)/i], |
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1292 ['lang-in.tag', /^(<\/?[a-z][^<>]*>)/i] |
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1293 ]), |
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1294 ['default-markup', 'htm', 'html', 'mxml', 'xhtml', 'xml', 'xsl']); |
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1295 registerLangHandler( |
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1296 createSimpleLexer( |
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1297 [ |
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1298 [PR_PLAIN, /^[\s]+/, null, ' \t\r\n'], |
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1299 [PR_ATTRIB_VALUE, /^(?:\"[^\"]*\"?|\'[^\']*\'?)/, null, '\"\''] |
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1300 ], |
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1301 [ |
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1302 [PR_TAG, /^^<\/?[a-z](?:[\w.:-]*\w)?|\/?>$/i], |
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1303 [PR_ATTRIB_NAME, /^(?!style[\s=]|on)[a-z](?:[\w:-]*\w)?/i], |
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1304 ['lang-uq.val', /^=\s*([^>\'\"\s]*(?:[^>\'\"\s\/]|\/(?=\s)))/], |
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1305 [PR_PUNCTUATION, /^[=<>\/]+/], |
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1306 ['lang-js', /^on\w+\s*=\s*\"([^\"]+)\"/i], |
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1307 ['lang-js', /^on\w+\s*=\s*\'([^\']+)\'/i], |
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1308 ['lang-js', /^on\w+\s*=\s*([^\"\'>\s]+)/i], |
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1309 ['lang-css', /^style\s*=\s*\"([^\"]+)\"/i], |
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1310 ['lang-css', /^style\s*=\s*\'([^\']+)\'/i], |
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1311 ['lang-css', /^style\s*=\s*([^\"\'>\s]+)/i] |
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1312 ]), |
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1313 ['in.tag']); |
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1314 registerLangHandler( |
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1315 createSimpleLexer([], [[PR_ATTRIB_VALUE, /^[\s\S]+/]]), ['uq.val']); |
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1316 registerLangHandler(sourceDecorator({ |
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1317 'keywords': CPP_KEYWORDS, |
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1318 'hashComments': true, |
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1319 'cStyleComments': true, |
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1320 'types': C_TYPES |
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1321 }), ['c', 'cc', 'cpp', 'cxx', 'cyc', 'm']); |
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1322 registerLangHandler(sourceDecorator({ |
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1323 'keywords': 'null,true,false' |
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1324 }), ['json']); |
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1325 registerLangHandler(sourceDecorator({ |
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1326 'keywords': CSHARP_KEYWORDS, |
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1327 'hashComments': true, |
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1328 'cStyleComments': true, |
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1329 'verbatimStrings': true, |
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1330 'types': C_TYPES |
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1331 }), ['cs']); |
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1332 registerLangHandler(sourceDecorator({ |
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1333 'keywords': JAVA_KEYWORDS, |
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1334 'cStyleComments': true |
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1335 }), ['java']); |
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1336 registerLangHandler(sourceDecorator({ |
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1337 'keywords': SH_KEYWORDS, |
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1338 'hashComments': true, |
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1339 'multiLineStrings': true |
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1340 }), ['bash', 'bsh', 'csh', 'sh']); |
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1341 registerLangHandler(sourceDecorator({ |
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1342 'keywords': PYTHON_KEYWORDS, |
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1343 'hashComments': true, |
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1344 'multiLineStrings': true, |
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1345 'tripleQuotedStrings': true |
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1346 }), ['cv', 'py', 'python']); |
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1347 registerLangHandler(sourceDecorator({ |
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1348 'keywords': PERL_KEYWORDS, |
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1349 'hashComments': true, |
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1350 'multiLineStrings': true, |
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1351 'regexLiterals': 2 // multiline regex literals |
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1352 }), ['perl', 'pl', 'pm']); |
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1353 registerLangHandler(sourceDecorator({ |
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1354 'keywords': RUBY_KEYWORDS, |
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1355 'hashComments': true, |
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1356 'multiLineStrings': true, |
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1357 'regexLiterals': true |
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1358 }), ['rb', 'ruby']); |
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1359 registerLangHandler(sourceDecorator({ |
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1360 'keywords': JSCRIPT_KEYWORDS, |
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1361 'cStyleComments': true, |
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1362 'regexLiterals': true |
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1363 }), ['javascript', 'js']); |
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1364 registerLangHandler(sourceDecorator({ |
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1365 'keywords': COFFEE_KEYWORDS, |
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1366 'hashComments': 3, // ### style block comments |
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1367 'cStyleComments': true, |
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1368 'multilineStrings': true, |
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1369 'tripleQuotedStrings': true, |
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1370 'regexLiterals': true |
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1371 }), ['coffee']); |
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1372 registerLangHandler(sourceDecorator({ |
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1373 'keywords': RUST_KEYWORDS, |
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1374 'cStyleComments': true, |
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1375 'multilineStrings': true |
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1376 }), ['rc', 'rs', 'rust']); |
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1377 registerLangHandler( |
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1378 createSimpleLexer([], [[PR_STRING, /^[\s\S]+/]]), ['regex']); |
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1379 |
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1380 function applyDecorator(job) { |
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1381 var opt_langExtension = job.langExtension; |
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1382 |
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1383 try { |
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1384 // Extract tags, and convert the source code to plain text. |
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1385 var sourceAndSpans = extractSourceSpans(job.sourceNode, job.pre); |
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1386 /** Plain text. @type {string} */ |
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1387 var source = sourceAndSpans.sourceCode; |
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1388 job.sourceCode = source; |
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1389 job.spans = sourceAndSpans.spans; |
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1390 job.basePos = 0; |
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1391 |
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1392 // Apply the appropriate language handler |
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1393 langHandlerForExtension(opt_langExtension, source)(job); |
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1394 |
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1395 // Integrate the decorations and tags back into the source code, |
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1396 // modifying the sourceNode in place. |
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1397 recombineTagsAndDecorations(job); |
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1398 } catch (e) { |
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1399 if (win['console']) { |
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1400 console['log'](e && e['stack'] || e); |
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1401 } |
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1402 } |
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1403 } |
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1404 |
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1405 /** |
220
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1406 * Pretty print a chunk of code. |
58
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1407 * @param sourceCodeHtml {string} The HTML to pretty print. |
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1408 * @param opt_langExtension {string} The language name to use. |
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1409 * Typically, a filename extension like 'cpp' or 'java'. |
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1410 * @param opt_numberLines {number|boolean} True to number lines, |
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1411 * or the 1-indexed number of the first line in sourceCodeHtml. |
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1412 */ |
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1413 function $prettyPrintOne(sourceCodeHtml, opt_langExtension, opt_numberLines) { |
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1414 var container = document.createElement('div'); |
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1415 // This could cause images to load and onload listeners to fire. |
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1416 // E.g. <img onerror="alert(1337)" src="nosuchimage.png">. |
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1417 // We assume that the inner HTML is from a trusted source. |
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1418 // The pre-tag is required for IE8 which strips newlines from innerHTML |
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1419 // when it is injected into a <pre> tag. |
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1420 // http://stackoverflow.com/questions/451486/pre-tag-loses-line-breaks-when-setting-innerhtml-in-ie |
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1421 // http://stackoverflow.com/questions/195363/inserting-a-newline-into-a-pre-tag-ie-javascript |
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1422 container.innerHTML = '<pre>' + sourceCodeHtml + '</pre>'; |
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1423 container = container.firstChild; |
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1424 if (opt_numberLines) { |
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1425 numberLines(container, opt_numberLines, true); |
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1426 } |
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1427 |
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1428 var job = { |
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1429 langExtension: opt_langExtension, |
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1430 numberLines: opt_numberLines, |
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1431 sourceNode: container, |
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1432 pre: 1 |
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1433 }; |
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1434 applyDecorator(job); |
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1435 return container.innerHTML; |
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1436 } |
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1437 |
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1438 /** |
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1439 * Find all the {@code <pre>} and {@code <code>} tags in the DOM with |
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1440 * {@code class=prettyprint} and prettify them. |
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1441 * |
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1442 * @param {Function} opt_whenDone called when prettifying is done. |
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1443 * @param {HTMLElement|HTMLDocument} opt_root an element or document |
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1444 * containing all the elements to pretty print. |
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1445 * Defaults to {@code document.body}. |
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1446 */ |
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1447 function $prettyPrint(opt_whenDone, opt_root) { |
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1448 var root = opt_root || document.body; |
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1449 var doc = root.ownerDocument || document; |
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1450 function byTagName(tn) { return root.getElementsByTagName(tn); } |
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1451 // fetch a list of nodes to rewrite |
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1452 var codeSegments = [byTagName('pre'), byTagName('code'), byTagName('xmp')]; |
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1453 var elements = []; |
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1454 for (var i = 0; i < codeSegments.length; ++i) { |
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1455 for (var j = 0, n = codeSegments[i].length; j < n; ++j) { |
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1456 elements.push(codeSegments[i][j]); |
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1457 } |
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1458 } |
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1459 codeSegments = null; |
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1460 |
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1461 var clock = Date; |
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1462 if (!clock['now']) { |
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1463 clock = { 'now': function () { return +(new Date); } }; |
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1464 } |
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1465 |
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1466 // The loop is broken into a series of continuations to make sure that we |
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1467 // don't make the browser unresponsive when rewriting a large page. |
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1468 var k = 0; |
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1469 var prettyPrintingJob; |
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1470 |
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1471 var langExtensionRe = /\blang(?:uage)?-([\w.]+)(?!\S)/; |
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1472 var prettyPrintRe = /\bprettyprint\b/; |
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1473 var prettyPrintedRe = /\bprettyprinted\b/; |
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1474 var preformattedTagNameRe = /pre|xmp/i; |
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1475 var codeRe = /^code$/i; |
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1476 var preCodeXmpRe = /^(?:pre|code|xmp)$/i; |
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1477 var EMPTY = {}; |
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1478 |
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1479 function doWork() { |
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1480 var endTime = (win['PR_SHOULD_USE_CONTINUATION'] ? |
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1481 clock['now']() + 250 /* ms */ : |
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1482 Infinity); |
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1483 for (; k < elements.length && clock['now']() < endTime; k++) { |
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1484 var cs = elements[k]; |
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1485 |
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1486 // Look for a preceding comment like |
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1487 // <?prettify lang="..." linenums="..."?> |
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1488 var attrs = EMPTY; |
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1489 { |
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1490 for (var preceder = cs; (preceder = preceder.previousSibling);) { |
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1491 var nt = preceder.nodeType; |
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1492 // <?foo?> is parsed by HTML 5 to a comment node (8) |
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1493 // like <!--?foo?-->, but in XML is a processing instruction |
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1494 var value = (nt === 7 || nt === 8) && preceder.nodeValue; |
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1495 if (value |
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1496 ? !/^\??prettify\b/.test(value) |
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1497 : (nt !== 3 || /\S/.test(preceder.nodeValue))) { |
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1498 // Skip over white-space text nodes but not others. |
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1499 break; |
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1500 } |
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1501 if (value) { |
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1502 attrs = {}; |
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1503 value.replace( |
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1504 /\b(\w+)=([\w:.%+-]+)/g, |
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1505 function (_, name, value) { attrs[name] = value; }); |
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1506 break; |
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1507 } |
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1508 } |
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1509 } |
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1510 |
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1511 var className = cs.className; |
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1512 if ((attrs !== EMPTY || prettyPrintRe.test(className)) |
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1513 // Don't redo this if we've already done it. |
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1514 // This allows recalling pretty print to just prettyprint elements |
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1515 // that have been added to the page since last call. |
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1516 && !prettyPrintedRe.test(className)) { |
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1517 |
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1518 // make sure this is not nested in an already prettified element |
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1519 var nested = false; |
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1520 for (var p = cs.parentNode; p; p = p.parentNode) { |
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1521 var tn = p.tagName; |
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1522 if (preCodeXmpRe.test(tn) |
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1523 && p.className && prettyPrintRe.test(p.className)) { |
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1524 nested = true; |
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1525 break; |
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1526 } |
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1527 } |
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1528 if (!nested) { |
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1529 // Mark done. If we fail to prettyprint for whatever reason, |
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1530 // we shouldn't try again. |
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1531 cs.className += ' prettyprinted'; |
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1532 |
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1533 // If the classes includes a language extensions, use it. |
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1534 // Language extensions can be specified like |
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1535 // <pre class="prettyprint lang-cpp"> |
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1536 // the language extension "cpp" is used to find a language handler |
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1537 // as passed to PR.registerLangHandler. |
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1538 // HTML5 recommends that a language be specified using "language-" |
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1539 // as the prefix instead. Google Code Prettify supports both. |
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1540 // http://dev.w3.org/html5/spec-author-view/the-code-element.html |
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1541 var langExtension = attrs['lang']; |
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1542 if (!langExtension) { |
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1543 langExtension = className.match(langExtensionRe); |
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1544 // Support <pre class="prettyprint"><code class="language-c"> |
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1545 var wrapper; |
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1546 if (!langExtension && (wrapper = childContentWrapper(cs)) |
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1547 && codeRe.test(wrapper.tagName)) { |
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1548 langExtension = wrapper.className.match(langExtensionRe); |
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1549 } |
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1550 |
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1551 if (langExtension) { langExtension = langExtension[1]; } |
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1552 } |
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1553 |
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1554 var preformatted; |
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1555 if (preformattedTagNameRe.test(cs.tagName)) { |
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1556 preformatted = 1; |
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1557 } else { |
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1558 var currentStyle = cs['currentStyle']; |
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1559 var defaultView = doc.defaultView; |
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1560 var whitespace = ( |
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1561 currentStyle |
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1562 ? currentStyle['whiteSpace'] |
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1563 : (defaultView |
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1564 && defaultView.getComputedStyle) |
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1565 ? defaultView.getComputedStyle(cs, null) |
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1566 .getPropertyValue('white-space') |
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1567 : 0); |
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1568 preformatted = whitespace |
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1569 && 'pre' === whitespace.substring(0, 3); |
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1570 } |
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1571 |
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1572 // Look for a class like linenums or linenums:<n> where <n> is the |
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1573 // 1-indexed number of the first line. |
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1574 var lineNums = attrs['linenums']; |
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1575 if (!(lineNums = lineNums === 'true' || +lineNums)) { |
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1576 lineNums = className.match(/\blinenums\b(?::(\d+))?/); |
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1577 lineNums = |
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1578 lineNums |
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1579 ? lineNums[1] && lineNums[1].length |
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1580 ? +lineNums[1] : true |
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1581 : false; |
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1582 } |
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1583 if (lineNums) { numberLines(cs, lineNums, preformatted); } |
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1584 |
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1585 // do the pretty printing |
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1586 prettyPrintingJob = { |
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1587 langExtension: langExtension, |
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1588 sourceNode: cs, |
220
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1589 numberLines: lineNums, |
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1590 pre: preformatted |
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1591 }; |
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1592 applyDecorator(prettyPrintingJob); |
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1593 } |
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1594 } |
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1595 } |
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1596 if (k < elements.length) { |
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1597 // finish up in a continuation |
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1598 setTimeout(doWork, 250); |
220
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1599 } else if ('function' === typeof opt_whenDone) { |
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1600 opt_whenDone(); |
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1601 } |
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1602 } |
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1603 |
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1604 doWork(); |
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1605 } |
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1606 |
220
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1607 /** |
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1608 * Contains functions for creating and registering new language handlers. |
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1609 * @type {Object} |
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1610 */ |
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1611 var PR = win['PR'] = { |
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1612 'createSimpleLexer': createSimpleLexer, |
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1613 'registerLangHandler': registerLangHandler, |
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1614 'sourceDecorator': sourceDecorator, |
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1615 'PR_ATTRIB_NAME': PR_ATTRIB_NAME, |
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1616 'PR_ATTRIB_VALUE': PR_ATTRIB_VALUE, |
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1617 'PR_COMMENT': PR_COMMENT, |
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1618 'PR_DECLARATION': PR_DECLARATION, |
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1619 'PR_KEYWORD': PR_KEYWORD, |
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1620 'PR_LITERAL': PR_LITERAL, |
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1621 'PR_NOCODE': PR_NOCODE, |
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1622 'PR_PLAIN': PR_PLAIN, |
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1623 'PR_PUNCTUATION': PR_PUNCTUATION, |
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1624 'PR_SOURCE': PR_SOURCE, |
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1625 'PR_STRING': PR_STRING, |
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1626 'PR_TAG': PR_TAG, |
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1627 'PR_TYPE': PR_TYPE, |
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1628 'prettyPrintOne': |
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1629 IN_GLOBAL_SCOPE |
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1630 ? (win['prettyPrintOne'] = $prettyPrintOne) |
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1631 : (prettyPrintOne = $prettyPrintOne), |
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1632 'prettyPrint': prettyPrint = |
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1633 IN_GLOBAL_SCOPE |
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1634 ? (win['prettyPrint'] = $prettyPrint) |
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1635 : (prettyPrint = $prettyPrint) |
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1636 }; |
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1637 |
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1638 // Make PR available via the Asynchronous Module Definition (AMD) API. |
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1639 // Per https://github.com/amdjs/amdjs-api/wiki/AMD: |
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1640 // The Asynchronous Module Definition (AMD) API specifies a |
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1641 // mechanism for defining modules such that the module and its |
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1642 // dependencies can be asynchronously loaded. |
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1643 // ... |
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1644 // To allow a clear indicator that a global define function (as |
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1645 // needed for script src browser loading) conforms to the AMD API, |
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1646 // any global define function SHOULD have a property called "amd" |
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1647 // whose value is an object. This helps avoid conflict with any |
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1648 // other existing JavaScript code that could have defined a define() |
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1649 // function that does not conform to the AMD API. |
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1650 if (typeof define === "function" && define['amd']) { |
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1651 define("google-code-prettify", [], function () { |
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1652 return PR; |
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1653 }); |
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1654 } |
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1655 })(); |