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@@ -0,0 +1,1477 @@
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+
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+
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+
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+
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+
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+ * @fileoverview
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+ * some functions for browser-side pretty printing of code contained in html.
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+ *
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+ * <p>
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+ * For a fairly comprehensive set of languages see the
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+ * <a href="http://google-code-prettify.googlecode.com/svn/trunk/README.html#langs">README</a>
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+ * file that came with this source. At a minimum, the lexer should work on a
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+ * number of languages including C and friends, Java, Python, Bash, SQL, HTML,
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+ * XML, CSS, Javascript, and Makefiles. It works passably on Ruby, PHP and Awk
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+ * and a subset of Perl, but, because of commenting conventions, doesn't work on
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+ * Smalltalk, Lisp-like, or CAML-like languages without an explicit lang class.
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+ * <p>
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+ * Usage: <ol>
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+ * <li> include this source file in an html page via
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+ * {@code <script type="text/javascript" src="/path/to/prettify.js"></script>}
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+ * <li> define style rules. See the example page for examples.
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+ * <li> mark the {@code <pre>} and {@code <code>} tags in your source with
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+ * {@code class=prettyprint.}
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+ * You can also use the (html deprecated) {@code <xmp>} tag, but the pretty
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+ * printer needs to do more substantial DOM manipulations to support that, so
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+ * some css styles may not be preserved.
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+ * </ol>
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+ * That's it. I wanted to keep the API as simple as possible, so there's no
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+ * need to specify which language the code is in, but if you wish, you can add
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+ * another class to the {@code <pre>} or {@code <code>} element to specify the
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+ * language, as in {@code <pre class="prettyprint lang-java">}. Any class that
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+ * starts with "lang-" followed by a file extension, specifies the file type.
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+ * See the "lang-*.js" files in this directory for code that implements
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+ * per-language file handlers.
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+ * <p>
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+ * Change log:<br>
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+ * cbeust, 2006/08/22
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+ * <blockquote>
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+ * Java annotations (start with "@") are now captured as literals ("lit")
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+ * </blockquote>
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+ * @requires console
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+ */
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+
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+
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+
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+
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+
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+ * Split {@code prettyPrint} into multiple timeouts so as not to interfere with
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+ * UI events.
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+ * If set to {@code false}, {@code prettyPrint()} is synchronous.
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+ */
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+window['PR_SHOULD_USE_CONTINUATION'] = true;
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+
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+(function () {
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+
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+
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+
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+ var FLOW_CONTROL_KEYWORDS = ["break,continue,do,else,for,if,return,while"];
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+ var C_KEYWORDS = [FLOW_CONTROL_KEYWORDS,"auto,case,char,const,default," +
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+ "double,enum,extern,float,goto,int,long,register,short,signed,sizeof," +
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+ "static,struct,switch,typedef,union,unsigned,void,volatile"];
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+ var COMMON_KEYWORDS = [C_KEYWORDS,"catch,class,delete,false,import," +
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+ "new,operator,private,protected,public,this,throw,true,try,typeof"];
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+ var CPP_KEYWORDS = [COMMON_KEYWORDS,"alignof,align_union,asm,axiom,bool," +
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+ "concept,concept_map,const_cast,constexpr,decltype," +
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+ "dynamic_cast,explicit,export,friend,inline,late_check," +
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+ "mutable,namespace,nullptr,reinterpret_cast,static_assert,static_cast," +
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+ "template,typeid,typename,using,virtual,where"];
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+ var JAVA_KEYWORDS = [COMMON_KEYWORDS,
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+ "abstract,boolean,byte,extends,final,finally,implements,import," +
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+ "instanceof,null,native,package,strictfp,super,synchronized,throws," +
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+ "transient"];
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+ var CSHARP_KEYWORDS = [JAVA_KEYWORDS,
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+ "as,base,by,checked,decimal,delegate,descending,dynamic,event," +
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+ "fixed,foreach,from,group,implicit,in,interface,internal,into,is,lock," +
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+ "object,out,override,orderby,params,partial,readonly,ref,sbyte,sealed," +
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+ "stackalloc,string,select,uint,ulong,unchecked,unsafe,ushort,var"];
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+ var COFFEE_KEYWORDS = "all,and,by,catch,class,else,extends,false,finally," +
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+ "for,if,in,is,isnt,loop,new,no,not,null,of,off,on,or,return,super,then," +
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+ "true,try,unless,until,when,while,yes";
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+ var JSCRIPT_KEYWORDS = [COMMON_KEYWORDS,
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+ "debugger,eval,export,function,get,null,set,undefined,var,with," +
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+ "Infinity,NaN"];
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+ var PERL_KEYWORDS = "caller,delete,die,do,dump,elsif,eval,exit,foreach,for," +
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+ "goto,if,import,last,local,my,next,no,our,print,package,redo,require," +
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+ "sub,undef,unless,until,use,wantarray,while,BEGIN,END";
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+ var PYTHON_KEYWORDS = [FLOW_CONTROL_KEYWORDS, "and,as,assert,class,def,del," +
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+ "elif,except,exec,finally,from,global,import,in,is,lambda," +
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+ "nonlocal,not,or,pass,print,raise,try,with,yield," +
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+ "False,True,None"];
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+ var RUBY_KEYWORDS = [FLOW_CONTROL_KEYWORDS, "alias,and,begin,case,class," +
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+ "def,defined,elsif,end,ensure,false,in,module,next,nil,not,or,redo," +
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+ "rescue,retry,self,super,then,true,undef,unless,until,when,yield," +
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+ "BEGIN,END"];
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+ var SH_KEYWORDS = [FLOW_CONTROL_KEYWORDS, "case,done,elif,esac,eval,fi," +
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+ "function,in,local,set,then,until"];
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+ var ALL_KEYWORDS = [
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+ CPP_KEYWORDS, CSHARP_KEYWORDS, JSCRIPT_KEYWORDS, PERL_KEYWORDS +
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+ PYTHON_KEYWORDS, RUBY_KEYWORDS, SH_KEYWORDS];
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+ var C_TYPES = /^(DIR|FILE|vector|(de|priority_)?queue|list|stack|(const_)?iterator|(multi)?(set|map)|bitset|u?(int|float)\d*)/;
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+
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+
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+
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+ * token style for a string literal
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+ * @const
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+ */
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+ var PR_STRING = 'str';
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+
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+ * token style for a keyword
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+ * @const
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+ */
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+ var PR_KEYWORD = 'kwd';
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+
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+ * token style for a comment
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+ * @const
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+ */
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+ var PR_COMMENT = 'com';
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+
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+ * token style for a type
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+ * @const
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+ */
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+ var PR_TYPE = 'typ';
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+
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+ * token style for a literal value. e.g. 1, null, true.
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+ * @const
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+ */
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+ var PR_LITERAL = 'lit';
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+
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+ * token style for a punctuation string.
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+ * @const
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+ */
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+ var PR_PUNCTUATION = 'pun';
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+
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+ * token style for a punctuation string.
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+ * @const
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+ */
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+ var PR_PLAIN = 'pln';
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+
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+
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+ * token style for an sgml tag.
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+ * @const
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+ */
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+ var PR_TAG = 'tag';
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+
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+ * token style for a markup declaration such as a DOCTYPE.
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+ * @const
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+ */
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+ var PR_DECLARATION = 'dec';
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+
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+ * token style for embedded source.
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+ * @const
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+ */
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+ var PR_SOURCE = 'src';
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+
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+ * token style for an sgml attribute name.
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+ * @const
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+ */
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+ var PR_ATTRIB_NAME = 'atn';
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+
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+ * token style for an sgml attribute value.
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+ * @const
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+ */
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+ var PR_ATTRIB_VALUE = 'atv';
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+
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+
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+ * A class that indicates a section of markup that is not code, e.g. to allow
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+ * embedding of line numbers within code listings.
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+ * @const
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+ */
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+ var PR_NOCODE = 'nocode';
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+
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+
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+
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+
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+ * A set of tokens that can precede a regular expression literal in
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+ * javascript
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+ * http:
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+ * has the full list, but I've removed ones that might be problematic when
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+ * seen in languages that don't support regular expression literals.
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+ *
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+ * <p>Specifically, I've removed any keywords that can't precede a regexp
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+ * literal in a syntactically legal javascript program, and I've removed the
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+ * "in" keyword since it's not a keyword in many languages, and might be used
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+ * as a count of inches.
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+ *
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+ * <p>The link a above does not accurately describe EcmaScript rules since
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+ * it fails to distinguish between (a=++/b/i) and (a++/b/i) but it works
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+ * very well in practice.
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+ *
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+ * @private
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+ * @const
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+ */
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+var REGEXP_PRECEDER_PATTERN = '(?:^^\\.?|[+-]|\\!|\\!=|\\!==|\\#|\\%|\\%=|&|&&|&&=|&=|\\(|\\*|\\*=|\\+=|\\,|\\-=|\\->|\\/|\\/=|:|::|\\;|<|<<|<<=|<=|=|==|===|>|>=|>>|>>=|>>>|>>>=|\\?|\\@|\\[|\\^|\\^=|\\^\\^|\\^\\^=|\\{|\\||\\|=|\\|\\||\\|\\|=|\\~|break|case|continue|delete|do|else|finally|instanceof|return|throw|try|typeof)\\s*';
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+
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+
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+
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+
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+
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+
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+
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+
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+
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+ * Given a group of {@link RegExp}s, returns a {@code RegExp} that globally
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+ * matches the union of the sets of strings matched by the input RegExp.
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+ * Since it matches globally, if the input strings have a start-of-input
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+ * anchor (/^.../), it is ignored for the purposes of unioning.
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+ * @param {Array.<RegExp>} regexs non multiline, non-global regexs.
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+ * @return {RegExp} a global regex.
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+ */
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+ function combinePrefixPatterns(regexs) {
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+ var capturedGroupIndex = 0;
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+
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+ var needToFoldCase = false;
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+ var ignoreCase = false;
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+ for (var i = 0, n = regexs.length; i < n; ++i) {
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+ var regex = regexs[i];
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+ if (regex.ignoreCase) {
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+ ignoreCase = true;
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+ } else if (/[a-z]/i.test(regex.source.replace(
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+ /\\u[0-9a-f]{4}|\\x[0-9a-f]{2}|\\[^ux]/gi, ''))) {
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+ needToFoldCase = true;
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+ ignoreCase = false;
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+ break;
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+ }
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+ }
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+
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+ var escapeCharToCodeUnit = {
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+ 'b': 8,
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+ 't': 9,
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+ 'n': 0xa,
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+ 'v': 0xb,
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+ 'f': 0xc,
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+ 'r': 0xd
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+ };
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+
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+ function decodeEscape(charsetPart) {
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+ var cc0 = charsetPart.charCodeAt(0);
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+ if (cc0 !== 92 ) {
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+ return cc0;
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+ }
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+ var c1 = charsetPart.charAt(1);
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+ cc0 = escapeCharToCodeUnit[c1];
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+ if (cc0) {
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+ return cc0;
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+ } else if ('0' <= c1 && c1 <= '7') {
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+ return parseInt(charsetPart.substring(1), 8);
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+ } else if (c1 === 'u' || c1 === 'x') {
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+ return parseInt(charsetPart.substring(2), 16);
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+ } else {
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+ return charsetPart.charCodeAt(1);
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+ }
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+ }
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+
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+ function encodeEscape(charCode) {
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+ if (charCode < 0x20) {
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+ return (charCode < 0x10 ? '\\x0' : '\\x') + charCode.toString(16);
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+ }
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+ var ch = String.fromCharCode(charCode);
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+ if (ch === '\\' || ch === '-' || ch === '[' || ch === ']') {
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+ ch = '\\' + ch;
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+ }
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+ return ch;
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+ }
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+
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+ function caseFoldCharset(charSet) {
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+ var charsetParts = charSet.substring(1, charSet.length - 1).match(
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+ new RegExp(
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+ '\\\\u[0-9A-Fa-f]{4}'
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+ + '|\\\\x[0-9A-Fa-f]{2}'
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+ + '|\\\\[0-3][0-7]{0,2}'
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+ + '|\\\\[0-7]{1,2}'
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+ + '|\\\\[\\s\\S]'
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+ + '|-'
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+ + '|[^-\\\\]',
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+ 'g'));
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+ var groups = [];
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+ var ranges = [];
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+ var inverse = charsetParts[0] === '^';
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+ for (var i = inverse ? 1 : 0, n = charsetParts.length; i < n; ++i) {
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+ var p = charsetParts[i];
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+ if (/\\[bdsw]/i.test(p)) {
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+ groups.push(p);
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+ } else {
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+ var start = decodeEscape(p);
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+ var end;
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+ if (i + 2 < n && '-' === charsetParts[i + 1]) {
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+ end = decodeEscape(charsetParts[i + 2]);
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+ i += 2;
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+ } else {
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+ end = start;
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+ }
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+ ranges.push([start, end]);
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+
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+
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+
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+
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+ if (!(end < 65 || start > 122)) {
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+ if (!(end < 65 || start > 90)) {
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+ ranges.push([Math.max(65, start) | 32, Math.min(end, 90) | 32]);
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+ }
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+ if (!(end < 97 || start > 122)) {
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+ ranges.push([Math.max(97, start) & ~32, Math.min(end, 122) & ~32]);
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+ }
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+ }
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+ }
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+ }
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+
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+
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+
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+ ranges.sort(function (a, b) { return (a[0] - b[0]) || (b[1] - a[1]); });
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+ var consolidatedRanges = [];
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+ var lastRange = [NaN, NaN];
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+ for (var i = 0; i < ranges.length; ++i) {
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+ var range = ranges[i];
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+ if (range[0] <= lastRange[1] + 1) {
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+ lastRange[1] = Math.max(lastRange[1], range[1]);
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+ } else {
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+ consolidatedRanges.push(lastRange = range);
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+ }
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+ }
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+
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+ var out = ['['];
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+ if (inverse) { out.push('^'); }
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+ out.push.apply(out, groups);
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+ for (var i = 0; i < consolidatedRanges.length; ++i) {
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+ var range = consolidatedRanges[i];
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+ out.push(encodeEscape(range[0]));
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+ if (range[1] > range[0]) {
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+ if (range[1] + 1 > range[0]) { out.push('-'); }
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+ out.push(encodeEscape(range[1]));
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+ }
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+ }
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+ out.push(']');
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+ return out.join('');
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+ }
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+
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+ function allowAnywhereFoldCaseAndRenumberGroups(regex) {
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+
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+
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+
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+ var parts = regex.source.match(
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+ new RegExp(
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+ '(?:'
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+ + '\\[(?:[^\\x5C\\x5D]|\\\\[\\s\\S])*\\]'
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+ + '|\\\\u[A-Fa-f0-9]{4}'
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+ + '|\\\\x[A-Fa-f0-9]{2}'
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+ + '|\\\\[0-9]+'
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+ + '|\\\\[^ux0-9]'
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+ + '|\\(\\?[:!=]'
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+ + '|[\\(\\)\\^]'
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+ + '|[^\\x5B\\x5C\\(\\)\\^]+'
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+ + ')',
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+ 'g'));
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+ var n = parts.length;
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+
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+
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+
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+
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+ var capturedGroups = [];
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+
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+
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+
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+ for (var i = 0, groupIndex = 0; i < n; ++i) {
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+ var p = parts[i];
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+ if (p === '(') {
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+
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+ ++groupIndex;
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+ } else if ('\\' === p.charAt(0)) {
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+ var decimalValue = +p.substring(1);
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+ if (decimalValue && decimalValue <= groupIndex) {
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|
|
+ capturedGroups[decimalValue] = -1;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+ for (var i = 1; i < capturedGroups.length; ++i) {
|
|
|
+ if (-1 === capturedGroups[i]) {
|
|
|
+ capturedGroups[i] = ++capturedGroupIndex;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ for (var i = 0, groupIndex = 0; i < n; ++i) {
|
|
|
+ var p = parts[i];
|
|
|
+ if (p === '(') {
|
|
|
+ ++groupIndex;
|
|
|
+ if (capturedGroups[groupIndex] === undefined) {
|
|
|
+ parts[i] = '(?:';
|
|
|
+ }
|
|
|
+ } else if ('\\' === p.charAt(0)) {
|
|
|
+ var decimalValue = +p.substring(1);
|
|
|
+ if (decimalValue && decimalValue <= groupIndex) {
|
|
|
+ parts[i] = '\\' + capturedGroups[groupIndex];
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+ for (var i = 0, groupIndex = 0; i < n; ++i) {
|
|
|
+ if ('^' === parts[i] && '^' !== parts[i + 1]) { parts[i] = ''; }
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+ if (regex.ignoreCase && needToFoldCase) {
|
|
|
+ for (var i = 0; i < n; ++i) {
|
|
|
+ var p = parts[i];
|
|
|
+ var ch0 = p.charAt(0);
|
|
|
+ if (p.length >= 2 && ch0 === '[') {
|
|
|
+ parts[i] = caseFoldCharset(p);
|
|
|
+ } else if (ch0 !== '\\') {
|
|
|
+
|
|
|
+ parts[i] = p.replace(
|
|
|
+ /[a-zA-Z]/g,
|
|
|
+ function (ch) {
|
|
|
+ var cc = ch.charCodeAt(0);
|
|
|
+ return '[' + String.fromCharCode(cc & ~32, cc | 32) + ']';
|
|
|
+ });
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return parts.join('');
|
|
|
+ }
|
|
|
+
|
|
|
+ var rewritten = [];
|
|
|
+ for (var i = 0, n = regexs.length; i < n; ++i) {
|
|
|
+ var regex = regexs[i];
|
|
|
+ if (regex.global || regex.multiline) { throw new Error('' + regex); }
|
|
|
+ rewritten.push(
|
|
|
+ '(?:' + allowAnywhereFoldCaseAndRenumberGroups(regex) + ')');
|
|
|
+ }
|
|
|
+
|
|
|
+ return new RegExp(rewritten.join('|'), ignoreCase ? 'gi' : 'g');
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+ * Split markup into a string of source code and an array mapping ranges in
|
|
|
+ * that string to the text nodes in which they appear.
|
|
|
+ *
|
|
|
+ * <p>
|
|
|
+ * The HTML DOM structure:</p>
|
|
|
+ * <pre>
|
|
|
+ * (Element "p"
|
|
|
+ * (Element "b"
|
|
|
+ * (Text "print ")) ; #1
|
|
|
+ * (Text "'Hello '") ; #2
|
|
|
+ * (Element "br") ; #3
|
|
|
+ * (Text " + 'World';")) ; #4
|
|
|
+ * </pre>
|
|
|
+ * <p>
|
|
|
+ * corresponds to the HTML
|
|
|
+ * {@code <p><b>print </b>'Hello '<br> + 'World';</p>}.</p>
|
|
|
+ *
|
|
|
+ * <p>
|
|
|
+ * It will produce the output:</p>
|
|
|
+ * <pre>
|
|
|
+ * {
|
|
|
+ * sourceCode: "print 'Hello '\n + 'World';",
|
|
|
+ *
|
|
|
+ *
|
|
|
+ * spans: [0, #1, 6, #2, 14, #3, 15, #4]
|
|
|
+ * }
|
|
|
+ * </pre>
|
|
|
+ * <p>
|
|
|
+ * where #1 is a reference to the {@code "print "} text node above, and so
|
|
|
+ * on for the other text nodes.
|
|
|
+ * </p>
|
|
|
+ *
|
|
|
+ * <p>
|
|
|
+ * The {@code} spans array is an array of pairs. Even elements are the start
|
|
|
+ * indices of substrings, and odd elements are the text nodes (or BR elements)
|
|
|
+ * that contain the text for those substrings.
|
|
|
+ * Substrings continue until the next index or the end of the source.
|
|
|
+ * </p>
|
|
|
+ *
|
|
|
+ * @param {Node} node an HTML DOM subtree containing source-code.
|
|
|
+ * @return {Object} source code and the text nodes in which they occur.
|
|
|
+ */
|
|
|
+ function extractSourceSpans(node) {
|
|
|
+ var nocode = /(?:^|\s)nocode(?:\s|$)/;
|
|
|
+
|
|
|
+ var chunks = [];
|
|
|
+ var length = 0;
|
|
|
+ var spans = [];
|
|
|
+ var k = 0;
|
|
|
+
|
|
|
+ var whitespace;
|
|
|
+ if (node.currentStyle) {
|
|
|
+ whitespace = node.currentStyle.whiteSpace;
|
|
|
+ } else if (window.getComputedStyle) {
|
|
|
+ whitespace = document.defaultView.getComputedStyle(node, null)
|
|
|
+ .getPropertyValue('white-space');
|
|
|
+ }
|
|
|
+ var isPreformatted = whitespace && 'pre' === whitespace.substring(0, 3);
|
|
|
+
|
|
|
+ function walk(node) {
|
|
|
+ switch (node.nodeType) {
|
|
|
+ case 1:
|
|
|
+ if (nocode.test(node.className)) { return; }
|
|
|
+ for (var child = node.firstChild; child; child = child.nextSibling) {
|
|
|
+ walk(child);
|
|
|
+ }
|
|
|
+ var nodeName = node.nodeName;
|
|
|
+ if ('BR' === nodeName || 'LI' === nodeName) {
|
|
|
+ chunks[k] = '\n';
|
|
|
+ spans[k << 1] = length++;
|
|
|
+ spans[(k++ << 1) | 1] = node;
|
|
|
+ }
|
|
|
+ break;
|
|
|
+ case 3: case 4:
|
|
|
+ var text = node.nodeValue;
|
|
|
+ if (text.length) {
|
|
|
+ if (!isPreformatted) {
|
|
|
+ text = text.replace(/[ \t\r\n]+/g, ' ');
|
|
|
+ } else {
|
|
|
+ text = text.replace(/\r\n?/g, '\n');
|
|
|
+ }
|
|
|
+
|
|
|
+ chunks[k] = text;
|
|
|
+ spans[k << 1] = length;
|
|
|
+ length += text.length;
|
|
|
+ spans[(k++ << 1) | 1] = node;
|
|
|
+ }
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ walk(node);
|
|
|
+
|
|
|
+ return {
|
|
|
+ sourceCode: chunks.join('').replace(/\n$/, ''),
|
|
|
+ spans: spans
|
|
|
+ };
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+ * Apply the given language handler to sourceCode and add the resulting
|
|
|
+ * decorations to out.
|
|
|
+ * @param {number} basePos the index of sourceCode within the chunk of source
|
|
|
+ * whose decorations are already present on out.
|
|
|
+ */
|
|
|
+ function appendDecorations(basePos, sourceCode, langHandler, out) {
|
|
|
+ if (!sourceCode) { return; }
|
|
|
+ var job = {
|
|
|
+ sourceCode: sourceCode,
|
|
|
+ basePos: basePos
|
|
|
+ };
|
|
|
+ langHandler(job);
|
|
|
+ out.push.apply(out, job.decorations);
|
|
|
+ }
|
|
|
+
|
|
|
+ var notWs = /\S/;
|
|
|
+
|
|
|
+
|
|
|
+ * Given an element, if it contains only one child element and any text nodes
|
|
|
+ * it contains contain only space characters, return the sole child element.
|
|
|
+ * Otherwise returns undefined.
|
|
|
+ * <p>
|
|
|
+ * This is meant to return the CODE element in {@code <pre><code ...>} when
|
|
|
+ * there is a single child element that contains all the non-space textual
|
|
|
+ * content, but not to return anything where there are multiple child elements
|
|
|
+ * as in {@code <pre><code>...</code><code>...</code></pre>} or when there
|
|
|
+ * is textual content.
|
|
|
+ */
|
|
|
+ function childContentWrapper(element) {
|
|
|
+ var wrapper = undefined;
|
|
|
+ for (var c = element.firstChild; c; c = c.nextSibling) {
|
|
|
+ var type = c.nodeType;
|
|
|
+ wrapper = (type === 1)
|
|
|
+ ? (wrapper ? element : c)
|
|
|
+ : (type === 3)
|
|
|
+ ? (notWs.test(c.nodeValue) ? element : wrapper)
|
|
|
+ : wrapper;
|
|
|
+ }
|
|
|
+ return wrapper === element ? undefined : wrapper;
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+ * The lexing function interprets the patterns to find token boundaries and
|
|
|
+ * returns a decoration list of the form
|
|
|
+ * [index_0, style_0, index_1, style_1, ..., index_n, style_n]
|
|
|
+ * where index_n is an index into the sourceCode, and style_n is a style
|
|
|
+ * constant like PR_PLAIN. index_n-1 <= index_n, and style_n-1 applies to
|
|
|
+ * all characters in sourceCode[index_n-1:index_n].
|
|
|
+ *
|
|
|
+ * The stylePatterns is a list whose elements have the form
|
|
|
+ * [style : string, pattern : RegExp, DEPRECATED, shortcut : string].
|
|
|
+ *
|
|
|
+ * Style is a style constant like PR_PLAIN, or can be a string of the
|
|
|
+ * form 'lang-FOO', where FOO is a language extension describing the
|
|
|
+ * language of the portion of the token in $1 after pattern executes.
|
|
|
+ * E.g., if style is 'lang-lisp', and group 1 contains the text
|
|
|
+ * '(hello (world))', then that portion of the token will be passed to the
|
|
|
+ * registered lisp handler for formatting.
|
|
|
+ * The text before and after group 1 will be restyled using this decorator
|
|
|
+ * so decorators should take care that this doesn't result in infinite
|
|
|
+ * recursion. For example, the HTML lexer rule for SCRIPT elements looks
|
|
|
+ * something like ['lang-js', /<[s]cript>(.+?)<\/script>/]. This may match
|
|
|
+ * '<script>foo()<\/script>', which would cause the current decorator to
|
|
|
+ * be called with '<script>' which would not match the same rule since
|
|
|
+ * group 1 must not be empty, so it would be instead styled as PR_TAG by
|
|
|
+ * the generic tag rule. The handler registered for the 'js' extension would
|
|
|
+ * then be called with 'foo()', and finally, the current decorator would
|
|
|
+ * be called with '<\/script>' which would not match the original rule and
|
|
|
+ * so the generic tag rule would identify it as a tag.
|
|
|
+ *
|
|
|
+ * Pattern must only match prefixes, and if it matches a prefix, then that
|
|
|
+ * match is considered a token with the same style.
|
|
|
+ *
|
|
|
+ * Context is applied to the last non-whitespace, non-comment token
|
|
|
+ * recognized.
|
|
|
+ *
|
|
|
+ * Shortcut is an optional string of characters, any of which, if the first
|
|
|
+ * character, gurantee that this pattern and only this pattern matches.
|
|
|
+ *
|
|
|
+ * @param {Array} shortcutStylePatterns patterns that always start with
|
|
|
+ * a known character. Must have a shortcut string.
|
|
|
+ * @param {Array} fallthroughStylePatterns patterns that will be tried in
|
|
|
+ * order if the shortcut ones fail. May have shortcuts.
|
|
|
+ *
|
|
|
+ * @return {function (Object)} a
|
|
|
+ * function that takes source code and returns a list of decorations.
|
|
|
+ */
|
|
|
+ function createSimpleLexer(shortcutStylePatterns, fallthroughStylePatterns) {
|
|
|
+ var shortcuts = {};
|
|
|
+ var tokenizer;
|
|
|
+ (function () {
|
|
|
+ var allPatterns = shortcutStylePatterns.concat(fallthroughStylePatterns);
|
|
|
+ var allRegexs = [];
|
|
|
+ var regexKeys = {};
|
|
|
+ for (var i = 0, n = allPatterns.length; i < n; ++i) {
|
|
|
+ var patternParts = allPatterns[i];
|
|
|
+ var shortcutChars = patternParts[3];
|
|
|
+ if (shortcutChars) {
|
|
|
+ for (var c = shortcutChars.length; --c >= 0;) {
|
|
|
+ shortcuts[shortcutChars.charAt(c)] = patternParts;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ var regex = patternParts[1];
|
|
|
+ var k = '' + regex;
|
|
|
+ if (!regexKeys.hasOwnProperty(k)) {
|
|
|
+ allRegexs.push(regex);
|
|
|
+ regexKeys[k] = null;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ allRegexs.push(/[\0-\uffff]/);
|
|
|
+ tokenizer = combinePrefixPatterns(allRegexs);
|
|
|
+ })();
|
|
|
+
|
|
|
+ var nPatterns = fallthroughStylePatterns.length;
|
|
|
+
|
|
|
+
|
|
|
+ * Lexes job.sourceCode and produces an output array job.decorations of
|
|
|
+ * style classes preceded by the position at which they start in
|
|
|
+ * job.sourceCode in order.
|
|
|
+ *
|
|
|
+ * @param {Object} job an object like <pre>{
|
|
|
+ * sourceCode: {string} sourceText plain text,
|
|
|
+ * basePos: {int} position of job.sourceCode in the larger chunk of
|
|
|
+ * sourceCode.
|
|
|
+ * }</pre>
|
|
|
+ */
|
|
|
+ var decorate = function (job) {
|
|
|
+ var sourceCode = job.sourceCode, basePos = job.basePos;
|
|
|
+
|
|
|
+ * are style markers (e.g., PR_COMMENT) that run from that position until
|
|
|
+ * the end.
|
|
|
+ * @type {Array.<number|string>}
|
|
|
+ */
|
|
|
+ var decorations = [basePos, PR_PLAIN];
|
|
|
+ var pos = 0;
|
|
|
+ var tokens = sourceCode.match(tokenizer) || [];
|
|
|
+ var styleCache = {};
|
|
|
+
|
|
|
+ for (var ti = 0, nTokens = tokens.length; ti < nTokens; ++ti) {
|
|
|
+ var token = tokens[ti];
|
|
|
+ var style = styleCache[token];
|
|
|
+ var match = void 0;
|
|
|
+
|
|
|
+ var isEmbedded;
|
|
|
+ if (typeof style === 'string') {
|
|
|
+ isEmbedded = false;
|
|
|
+ } else {
|
|
|
+ var patternParts = shortcuts[token.charAt(0)];
|
|
|
+ if (patternParts) {
|
|
|
+ match = token.match(patternParts[1]);
|
|
|
+ style = patternParts[0];
|
|
|
+ } else {
|
|
|
+ for (var i = 0; i < nPatterns; ++i) {
|
|
|
+ patternParts = fallthroughStylePatterns[i];
|
|
|
+ match = token.match(patternParts[1]);
|
|
|
+ if (match) {
|
|
|
+ style = patternParts[0];
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ if (!match) {
|
|
|
+ style = PR_PLAIN;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ isEmbedded = style.length >= 5 && 'lang-' === style.substring(0, 5);
|
|
|
+ if (isEmbedded && !(match && typeof match[1] === 'string')) {
|
|
|
+ isEmbedded = false;
|
|
|
+ style = PR_SOURCE;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (!isEmbedded) { styleCache[token] = style; }
|
|
|
+ }
|
|
|
+
|
|
|
+ var tokenStart = pos;
|
|
|
+ pos += token.length;
|
|
|
+
|
|
|
+ if (!isEmbedded) {
|
|
|
+ decorations.push(basePos + tokenStart, style);
|
|
|
+ } else {
|
|
|
+ var embeddedSource = match[1];
|
|
|
+ var embeddedSourceStart = token.indexOf(embeddedSource);
|
|
|
+ var embeddedSourceEnd = embeddedSourceStart + embeddedSource.length;
|
|
|
+ if (match[2]) {
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+ embeddedSourceEnd = token.length - match[2].length;
|
|
|
+ embeddedSourceStart = embeddedSourceEnd - embeddedSource.length;
|
|
|
+ }
|
|
|
+ var lang = style.substring(5);
|
|
|
+
|
|
|
+ appendDecorations(
|
|
|
+ basePos + tokenStart,
|
|
|
+ token.substring(0, embeddedSourceStart),
|
|
|
+ decorate, decorations);
|
|
|
+
|
|
|
+ appendDecorations(
|
|
|
+ basePos + tokenStart + embeddedSourceStart,
|
|
|
+ embeddedSource,
|
|
|
+ langHandlerForExtension(lang, embeddedSource),
|
|
|
+ decorations);
|
|
|
+
|
|
|
+ appendDecorations(
|
|
|
+ basePos + tokenStart + embeddedSourceEnd,
|
|
|
+ token.substring(embeddedSourceEnd),
|
|
|
+ decorate, decorations);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ job.decorations = decorations;
|
|
|
+ };
|
|
|
+ return decorate;
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+ *
|
|
|
+ * This code treats ", ', and ` as string delimiters, and \ as a string
|
|
|
+ * escape. It does not recognize perl's qq() style strings.
|
|
|
+ * It has no special handling for double delimiter escapes as in basic, or
|
|
|
+ * the tripled delimiters used in python, but should work on those regardless
|
|
|
+ * although in those cases a single string literal may be broken up into
|
|
|
+ * multiple adjacent string literals.
|
|
|
+ *
|
|
|
+ * It recognizes C, C++, and shell style comments.
|
|
|
+ *
|
|
|
+ * @param {Object} options a set of optional parameters.
|
|
|
+ * @return {function (Object)} a function that examines the source code
|
|
|
+ * in the input job and builds the decoration list.
|
|
|
+ */
|
|
|
+ function sourceDecorator(options) {
|
|
|
+ var shortcutStylePatterns = [], fallthroughStylePatterns = [];
|
|
|
+ if (options['tripleQuotedStrings']) {
|
|
|
+
|
|
|
+ shortcutStylePatterns.push(
|
|
|
+ [PR_STRING, /^(?:\'\'\'(?:[^\'\\]|\\[\s\S]|\'{1,2}(?=[^\']))*(?:\'\'\'|$)|\"\"\"(?:[^\"\\]|\\[\s\S]|\"{1,2}(?=[^\"]))*(?:\"\"\"|$)|\'(?:[^\\\']|\\[\s\S])*(?:\'|$)|\"(?:[^\\\"]|\\[\s\S])*(?:\"|$))/,
|
|
|
+ null, '\'"']);
|
|
|
+ } else if (options['multiLineStrings']) {
|
|
|
+
|
|
|
+ shortcutStylePatterns.push(
|
|
|
+ [PR_STRING, /^(?:\'(?:[^\\\']|\\[\s\S])*(?:\'|$)|\"(?:[^\\\"]|\\[\s\S])*(?:\"|$)|\`(?:[^\\\`]|\\[\s\S])*(?:\`|$))/,
|
|
|
+ null, '\'"`']);
|
|
|
+ } else {
|
|
|
+
|
|
|
+ shortcutStylePatterns.push(
|
|
|
+ [PR_STRING,
|
|
|
+ /^(?:\'(?:[^\\\'\r\n]|\\.)*(?:\'|$)|\"(?:[^\\\"\r\n]|\\.)*(?:\"|$))/,
|
|
|
+ null, '"\'']);
|
|
|
+ }
|
|
|
+ if (options['verbatimStrings']) {
|
|
|
+
|
|
|
+ fallthroughStylePatterns.push(
|
|
|
+ [PR_STRING, /^@\"(?:[^\"]|\"\")*(?:\"|$)/, null]);
|
|
|
+ }
|
|
|
+ var hc = options['hashComments'];
|
|
|
+ if (hc) {
|
|
|
+ if (options['cStyleComments']) {
|
|
|
+ if (hc > 1) {
|
|
|
+ shortcutStylePatterns.push(
|
|
|
+ [PR_COMMENT, /^#(?:##(?:[^#]|#(?!##))*(?:###|$)|.*)/, null, '#']);
|
|
|
+ } else {
|
|
|
+
|
|
|
+ shortcutStylePatterns.push(
|
|
|
+ [PR_COMMENT, /^#(?:(?:define|elif|else|endif|error|ifdef|include|ifndef|line|pragma|undef|warning)\b|[^\r\n]*)/,
|
|
|
+ null, '#']);
|
|
|
+ }
|
|
|
+ fallthroughStylePatterns.push(
|
|
|
+ [PR_STRING,
|
|
|
+ /^<(?:(?:(?:\.\.\/)*|\/?)(?:[\w-]+(?:\/[\w-]+)+)?[\w-]+\.h|[a-z]\w*)>/,
|
|
|
+ null]);
|
|
|
+ } else {
|
|
|
+ shortcutStylePatterns.push([PR_COMMENT, /^#[^\r\n]*/, null, '#']);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ if (options['cStyleComments']) {
|
|
|
+ fallthroughStylePatterns.push([PR_COMMENT, /^\/\/[^\r\n]*/, null]);
|
|
|
+ fallthroughStylePatterns.push(
|
|
|
+ [PR_COMMENT, /^\/\*[\s\S]*?(?:\*\/|$)/, null]);
|
|
|
+ }
|
|
|
+ if (options['regexLiterals']) {
|
|
|
+
|
|
|
+ * @const
|
|
|
+ */
|
|
|
+ var REGEX_LITERAL = (
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+ '/(?=[^/*])'
|
|
|
+
|
|
|
+ + '(?:[^/\\x5B\\x5C]'
|
|
|
+
|
|
|
+ + '|\\x5C[\\s\\S]'
|
|
|
+
|
|
|
+ + '|\\x5B(?:[^\\x5C\\x5D]|\\x5C[\\s\\S])*(?:\\x5D|$))+'
|
|
|
+
|
|
|
+ + '/');
|
|
|
+ fallthroughStylePatterns.push(
|
|
|
+ ['lang-regex',
|
|
|
+ new RegExp('^' + REGEXP_PRECEDER_PATTERN + '(' + REGEX_LITERAL + ')')
|
|
|
+ ]);
|
|
|
+ }
|
|
|
+
|
|
|
+ var types = options['types'];
|
|
|
+ if (types) {
|
|
|
+ fallthroughStylePatterns.push([PR_TYPE, types]);
|
|
|
+ }
|
|
|
+
|
|
|
+ var keywords = ("" + options['keywords']).replace(/^ | $/g, '');
|
|
|
+ if (keywords.length) {
|
|
|
+ fallthroughStylePatterns.push(
|
|
|
+ [PR_KEYWORD,
|
|
|
+ new RegExp('^(?:' + keywords.replace(/[\s,]+/g, '|') + ')\\b'),
|
|
|
+ null]);
|
|
|
+ }
|
|
|
+
|
|
|
+ shortcutStylePatterns.push([PR_PLAIN, /^\s+/, null, ' \r\n\t\xA0']);
|
|
|
+ fallthroughStylePatterns.push(
|
|
|
+
|
|
|
+ [PR_LITERAL, /^@[a-z_$][a-z_$@0-9]*/i, null],
|
|
|
+ [PR_TYPE, /^(?:[@_]?[A-Z]+[a-z][A-Za-z_$@0-9]*|\w+_t\b)/, null],
|
|
|
+ [PR_PLAIN, /^[a-z_$][a-z_$@0-9]*/i, null],
|
|
|
+ [PR_LITERAL,
|
|
|
+ new RegExp(
|
|
|
+ '^(?:'
|
|
|
+
|
|
|
+ + '0x[a-f0-9]+'
|
|
|
+
|
|
|
+ + '|(?:\\d(?:_\\d+)*\\d*(?:\\.\\d*)?|\\.\\d\\+)'
|
|
|
+
|
|
|
+ + '(?:e[+\\-]?\\d+)?'
|
|
|
+ + ')'
|
|
|
+
|
|
|
+ + '[a-z]*', 'i'),
|
|
|
+ null, '0123456789'],
|
|
|
+
|
|
|
+ [PR_PLAIN, /^\\[\s\S]?/, null],
|
|
|
+ [PR_PUNCTUATION, /^.[^\s\w\.$@\'\"\`\/\#\\]*/, null]);
|
|
|
+
|
|
|
+ return createSimpleLexer(shortcutStylePatterns, fallthroughStylePatterns);
|
|
|
+ }
|
|
|
+
|
|
|
+ var decorateSource = sourceDecorator({
|
|
|
+ 'keywords': ALL_KEYWORDS,
|
|
|
+ 'hashComments': true,
|
|
|
+ 'cStyleComments': true,
|
|
|
+ 'multiLineStrings': true,
|
|
|
+ 'regexLiterals': true
|
|
|
+ });
|
|
|
+
|
|
|
+
|
|
|
+ * Given a DOM subtree, wraps it in a list, and puts each line into its own
|
|
|
+ * list item.
|
|
|
+ *
|
|
|
+ * @param {Node} node modified in place. Its content is pulled into an
|
|
|
+ * HTMLOListElement, and each line is moved into a separate list item.
|
|
|
+ * This requires cloning elements, so the input might not have unique
|
|
|
+ * IDs after numbering.
|
|
|
+ */
|
|
|
+ function numberLines(node, opt_startLineNum) {
|
|
|
+ var nocode = /(?:^|\s)nocode(?:\s|$)/;
|
|
|
+ var lineBreak = /\r\n?|\n/;
|
|
|
+
|
|
|
+ var document = node.ownerDocument;
|
|
|
+
|
|
|
+ var whitespace;
|
|
|
+ if (node.currentStyle) {
|
|
|
+ whitespace = node.currentStyle.whiteSpace;
|
|
|
+ } else if (window.getComputedStyle) {
|
|
|
+ whitespace = document.defaultView.getComputedStyle(node, null)
|
|
|
+ .getPropertyValue('white-space');
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+ var isPreformatted = whitespace && 'pre' === whitespace.substring(0, 3);
|
|
|
+
|
|
|
+ var li = document.createElement('LI');
|
|
|
+ while (node.firstChild) {
|
|
|
+ li.appendChild(node.firstChild);
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+ var listItems = [li];
|
|
|
+
|
|
|
+ function walk(node) {
|
|
|
+ switch (node.nodeType) {
|
|
|
+ case 1:
|
|
|
+ if (nocode.test(node.className)) { break; }
|
|
|
+ if ('BR' === node.nodeName) {
|
|
|
+ breakAfter(node);
|
|
|
+
|
|
|
+ if (node.parentNode) {
|
|
|
+ node.parentNode.removeChild(node);
|
|
|
+ }
|
|
|
+ } else {
|
|
|
+ for (var child = node.firstChild; child; child = child.nextSibling) {
|
|
|
+ walk(child);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ break;
|
|
|
+ case 3: case 4:
|
|
|
+ if (isPreformatted) {
|
|
|
+ var text = node.nodeValue;
|
|
|
+ var match = text.match(lineBreak);
|
|
|
+ if (match) {
|
|
|
+ var firstLine = text.substring(0, match.index);
|
|
|
+ node.nodeValue = firstLine;
|
|
|
+ var tail = text.substring(match.index + match[0].length);
|
|
|
+ if (tail) {
|
|
|
+ var parent = node.parentNode;
|
|
|
+ parent.insertBefore(
|
|
|
+ document.createTextNode(tail), node.nextSibling);
|
|
|
+ }
|
|
|
+ breakAfter(node);
|
|
|
+ if (!firstLine) {
|
|
|
+
|
|
|
+ node.parentNode.removeChild(node);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+ function breakAfter(lineEndNode) {
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+ while (!lineEndNode.nextSibling) {
|
|
|
+ lineEndNode = lineEndNode.parentNode;
|
|
|
+ if (!lineEndNode) { return; }
|
|
|
+ }
|
|
|
+
|
|
|
+ function breakLeftOf(limit, copy) {
|
|
|
+
|
|
|
+ var rightSide = copy ? limit.cloneNode(false) : limit;
|
|
|
+ var parent = limit.parentNode;
|
|
|
+ if (parent) {
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+ var parentClone = breakLeftOf(parent, 1);
|
|
|
+
|
|
|
+
|
|
|
+ var next = limit.nextSibling;
|
|
|
+ parentClone.appendChild(rightSide);
|
|
|
+ for (var sibling = next; sibling; sibling = next) {
|
|
|
+ next = sibling.nextSibling;
|
|
|
+ parentClone.appendChild(sibling);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return rightSide;
|
|
|
+ }
|
|
|
+
|
|
|
+ var copiedListItem = breakLeftOf(lineEndNode.nextSibling, 0);
|
|
|
+
|
|
|
+
|
|
|
+ for (var parent;
|
|
|
+
|
|
|
+ (parent = copiedListItem.parentNode) && parent.nodeType === 1;) {
|
|
|
+ copiedListItem = parent;
|
|
|
+ }
|
|
|
+
|
|
|
+ listItems.push(copiedListItem);
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+ for (var i = 0;
|
|
|
+ i < listItems.length;
|
|
|
+ ++i) {
|
|
|
+ walk(listItems[i]);
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+ if (opt_startLineNum === (opt_startLineNum|0)) {
|
|
|
+ listItems[0].setAttribute('value', opt_startLineNum);
|
|
|
+ }
|
|
|
+
|
|
|
+ var ol = document.createElement('OL');
|
|
|
+ ol.className = 'linenums';
|
|
|
+ var offset = Math.max(0, ((opt_startLineNum - 1 )) | 0) || 0;
|
|
|
+ for (var i = 0, n = listItems.length; i < n; ++i) {
|
|
|
+ li = listItems[i];
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+ li.className = 'L' + ((i + offset) % 10);
|
|
|
+ if (!li.firstChild) {
|
|
|
+ li.appendChild(document.createTextNode('\xA0'));
|
|
|
+ }
|
|
|
+ ol.appendChild(li);
|
|
|
+ }
|
|
|
+
|
|
|
+ node.appendChild(ol);
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+ * Breaks {@code job.sourceCode} around style boundaries in
|
|
|
+ * {@code job.decorations} and modifies {@code job.sourceNode} in place.
|
|
|
+ * @param {Object} job like <pre>{
|
|
|
+ * sourceCode: {string} source as plain text,
|
|
|
+ * spans: {Array.<number|Node>} alternating span start indices into source
|
|
|
+ * and the text node or element (e.g. {@code <BR>}) corresponding to that
|
|
|
+ * span.
|
|
|
+ * decorations: {Array.<number|string} an array of style classes preceded
|
|
|
+ * by the position at which they start in job.sourceCode in order
|
|
|
+ * }</pre>
|
|
|
+ * @private
|
|
|
+ */
|
|
|
+ function recombineTagsAndDecorations(job) {
|
|
|
+ var isIE = /\bMSIE\b/.test(navigator.userAgent);
|
|
|
+ var newlineRe = /\n/g;
|
|
|
+
|
|
|
+ var source = job.sourceCode;
|
|
|
+ var sourceLength = source.length;
|
|
|
+
|
|
|
+ var sourceIndex = 0;
|
|
|
+
|
|
|
+ var spans = job.spans;
|
|
|
+ var nSpans = spans.length;
|
|
|
+
|
|
|
+ var spanIndex = 0;
|
|
|
+
|
|
|
+ var decorations = job.decorations;
|
|
|
+ var nDecorations = decorations.length;
|
|
|
+
|
|
|
+
|
|
|
+ var decorationIndex = 0;
|
|
|
+
|
|
|
+
|
|
|
+ decorations[nDecorations] = sourceLength;
|
|
|
+ var decPos, i;
|
|
|
+ for (i = decPos = 0; i < nDecorations;) {
|
|
|
+ if (decorations[i] !== decorations[i + 2]) {
|
|
|
+ decorations[decPos++] = decorations[i++];
|
|
|
+ decorations[decPos++] = decorations[i++];
|
|
|
+ } else {
|
|
|
+ i += 2;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ nDecorations = decPos;
|
|
|
+
|
|
|
+
|
|
|
+ for (i = decPos = 0; i < nDecorations;) {
|
|
|
+ var startPos = decorations[i];
|
|
|
+
|
|
|
+ var startDec = decorations[i + 1];
|
|
|
+ var end = i + 2;
|
|
|
+ while (end + 2 <= nDecorations && decorations[end + 1] === startDec) {
|
|
|
+ end += 2;
|
|
|
+ }
|
|
|
+ decorations[decPos++] = startPos;
|
|
|
+ decorations[decPos++] = startDec;
|
|
|
+ i = end;
|
|
|
+ }
|
|
|
+
|
|
|
+ nDecorations = decorations.length = decPos;
|
|
|
+
|
|
|
+ var decoration = null;
|
|
|
+ while (spanIndex < nSpans) {
|
|
|
+ var spanStart = spans[spanIndex];
|
|
|
+ var spanEnd = spans[spanIndex + 2] || sourceLength;
|
|
|
+
|
|
|
+ var decStart = decorations[decorationIndex];
|
|
|
+ var decEnd = decorations[decorationIndex + 2] || sourceLength;
|
|
|
+
|
|
|
+ var end = Math.min(spanEnd, decEnd);
|
|
|
+
|
|
|
+ var textNode = spans[spanIndex + 1];
|
|
|
+ var styledText;
|
|
|
+ if (textNode.nodeType !== 1
|
|
|
+
|
|
|
+ && (styledText = source.substring(sourceIndex, end))) {
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+ if (isIE) { styledText = styledText.replace(newlineRe, '\r'); }
|
|
|
+ textNode.nodeValue = styledText;
|
|
|
+ var document = textNode.ownerDocument;
|
|
|
+ var span = document.createElement('SPAN');
|
|
|
+ span.className = decorations[decorationIndex + 1];
|
|
|
+ var parentNode = textNode.parentNode;
|
|
|
+ parentNode.replaceChild(span, textNode);
|
|
|
+ span.appendChild(textNode);
|
|
|
+ if (sourceIndex < spanEnd) {
|
|
|
+ spans[spanIndex + 1] = textNode
|
|
|
+
|
|
|
+ = document.createTextNode(source.substring(end, spanEnd));
|
|
|
+ parentNode.insertBefore(textNode, span.nextSibling);
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ sourceIndex = end;
|
|
|
+
|
|
|
+ if (sourceIndex >= spanEnd) {
|
|
|
+ spanIndex += 2;
|
|
|
+ }
|
|
|
+ if (sourceIndex >= decEnd) {
|
|
|
+ decorationIndex += 2;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+ var langHandlerRegistry = {};
|
|
|
+
|
|
|
+ * @param {function (Object)} handler a function from source code to a list
|
|
|
+ * of decorations. Takes a single argument job which describes the
|
|
|
+ * state of the computation. The single parameter has the form
|
|
|
+ * {@code {
|
|
|
+ * sourceCode: {string} as plain text.
|
|
|
+ * decorations: {Array.<number|string>} an array of style classes
|
|
|
+ * preceded by the position at which they start in
|
|
|
+ * job.sourceCode in order.
|
|
|
+ * The language handler should assigned this field.
|
|
|
+ * basePos: {int} the position of source in the larger source chunk.
|
|
|
+ * All positions in the output decorations array are relative
|
|
|
+ * to the larger source chunk.
|
|
|
+ * } }
|
|
|
+ * @param {Array.<string>} fileExtensions
|
|
|
+ */
|
|
|
+ function registerLangHandler(handler, fileExtensions) {
|
|
|
+ for (var i = fileExtensions.length; --i >= 0;) {
|
|
|
+ var ext = fileExtensions[i];
|
|
|
+ if (!langHandlerRegistry.hasOwnProperty(ext)) {
|
|
|
+ langHandlerRegistry[ext] = handler;
|
|
|
+ } else if (window['console']) {
|
|
|
+ console['warn']('cannot override language handler %s', ext);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ function langHandlerForExtension(extension, source) {
|
|
|
+ if (!(extension && langHandlerRegistry.hasOwnProperty(extension))) {
|
|
|
+
|
|
|
+
|
|
|
+ extension = /^\s*</.test(source)
|
|
|
+ ? 'default-markup'
|
|
|
+ : 'default-code';
|
|
|
+ }
|
|
|
+ return langHandlerRegistry[extension];
|
|
|
+ }
|
|
|
+ registerLangHandler(decorateSource, ['default-code']);
|
|
|
+ registerLangHandler(
|
|
|
+ createSimpleLexer(
|
|
|
+ [],
|
|
|
+ [
|
|
|
+ [PR_PLAIN, /^[^<?]+/],
|
|
|
+ [PR_DECLARATION, /^<!\w[^>]*(?:>|$)/],
|
|
|
+ [PR_COMMENT, /^<\!--[\s\S]*?(?:-\->|$)/],
|
|
|
+
|
|
|
+ ['lang-', /^<\?([\s\S]+?)(?:\?>|$)/],
|
|
|
+ ['lang-', /^<%([\s\S]+?)(?:%>|$)/],
|
|
|
+ [PR_PUNCTUATION, /^(?:<[%?]|[%?]>)/],
|
|
|
+ ['lang-', /^<xmp\b[^>]*>([\s\S]+?)<\/xmp\b[^>]*>/i],
|
|
|
+
|
|
|
+ ['lang-js', /^<script\b[^>]*>([\s\S]*?)(<\/script\b[^>]*>)/i],
|
|
|
+
|
|
|
+ ['lang-css', /^<style\b[^>]*>([\s\S]*?)(<\/style\b[^>]*>)/i],
|
|
|
+ ['lang-in.tag', /^(<\/?[a-z][^<>]*>)/i]
|
|
|
+ ]),
|
|
|
+ ['default-markup', 'htm', 'html', 'mxml', 'xhtml', 'xml', 'xsl']);
|
|
|
+ registerLangHandler(
|
|
|
+ createSimpleLexer(
|
|
|
+ [
|
|
|
+ [PR_PLAIN, /^[\s]+/, null, ' \t\r\n'],
|
|
|
+ [PR_ATTRIB_VALUE, /^(?:\"[^\"]*\"?|\'[^\']*\'?)/, null, '\"\'']
|
|
|
+ ],
|
|
|
+ [
|
|
|
+ [PR_TAG, /^^<\/?[a-z](?:[\w.:-]*\w)?|\/?>$/i],
|
|
|
+ [PR_ATTRIB_NAME, /^(?!style[\s=]|on)[a-z](?:[\w:-]*\w)?/i],
|
|
|
+ ['lang-uq.val', /^=\s*([^>\'\"\s]*(?:[^>\'\"\s\/]|\/(?=\s)))/],
|
|
|
+ [PR_PUNCTUATION, /^[=<>\/]+/],
|
|
|
+ ['lang-js', /^on\w+\s*=\s*\"([^\"]+)\"/i],
|
|
|
+ ['lang-js', /^on\w+\s*=\s*\'([^\']+)\'/i],
|
|
|
+ ['lang-js', /^on\w+\s*=\s*([^\"\'>\s]+)/i],
|
|
|
+ ['lang-css', /^style\s*=\s*\"([^\"]+)\"/i],
|
|
|
+ ['lang-css', /^style\s*=\s*\'([^\']+)\'/i],
|
|
|
+ ['lang-css', /^style\s*=\s*([^\"\'>\s]+)/i]
|
|
|
+ ]),
|
|
|
+ ['in.tag']);
|
|
|
+ registerLangHandler(
|
|
|
+ createSimpleLexer([], [[PR_ATTRIB_VALUE, /^[\s\S]+/]]), ['uq.val']);
|
|
|
+ registerLangHandler(sourceDecorator({
|
|
|
+ 'keywords': CPP_KEYWORDS,
|
|
|
+ 'hashComments': true,
|
|
|
+ 'cStyleComments': true,
|
|
|
+ 'types': C_TYPES
|
|
|
+ }), ['c', 'cc', 'cpp', 'cxx', 'cyc', 'm']);
|
|
|
+ registerLangHandler(sourceDecorator({
|
|
|
+ 'keywords': 'null,true,false'
|
|
|
+ }), ['json']);
|
|
|
+ registerLangHandler(sourceDecorator({
|
|
|
+ 'keywords': CSHARP_KEYWORDS,
|
|
|
+ 'hashComments': true,
|
|
|
+ 'cStyleComments': true,
|
|
|
+ 'verbatimStrings': true,
|
|
|
+ 'types': C_TYPES
|
|
|
+ }), ['cs']);
|
|
|
+ registerLangHandler(sourceDecorator({
|
|
|
+ 'keywords': JAVA_KEYWORDS,
|
|
|
+ 'cStyleComments': true
|
|
|
+ }), ['java']);
|
|
|
+ registerLangHandler(sourceDecorator({
|
|
|
+ 'keywords': SH_KEYWORDS,
|
|
|
+ 'hashComments': true,
|
|
|
+ 'multiLineStrings': true
|
|
|
+ }), ['bsh', 'csh', 'sh']);
|
|
|
+ registerLangHandler(sourceDecorator({
|
|
|
+ 'keywords': PYTHON_KEYWORDS,
|
|
|
+ 'hashComments': true,
|
|
|
+ 'multiLineStrings': true,
|
|
|
+ 'tripleQuotedStrings': true
|
|
|
+ }), ['cv', 'py']);
|
|
|
+ registerLangHandler(sourceDecorator({
|
|
|
+ 'keywords': PERL_KEYWORDS,
|
|
|
+ 'hashComments': true,
|
|
|
+ 'multiLineStrings': true,
|
|
|
+ 'regexLiterals': true
|
|
|
+ }), ['perl', 'pl', 'pm']);
|
|
|
+ registerLangHandler(sourceDecorator({
|
|
|
+ 'keywords': RUBY_KEYWORDS,
|
|
|
+ 'hashComments': true,
|
|
|
+ 'multiLineStrings': true,
|
|
|
+ 'regexLiterals': true
|
|
|
+ }), ['rb']);
|
|
|
+ registerLangHandler(sourceDecorator({
|
|
|
+ 'keywords': JSCRIPT_KEYWORDS,
|
|
|
+ 'cStyleComments': true,
|
|
|
+ 'regexLiterals': true
|
|
|
+ }), ['js']);
|
|
|
+ registerLangHandler(sourceDecorator({
|
|
|
+ 'keywords': COFFEE_KEYWORDS,
|
|
|
+ 'hashComments': 3,
|
|
|
+ 'cStyleComments': true,
|
|
|
+ 'multilineStrings': true,
|
|
|
+ 'tripleQuotedStrings': true,
|
|
|
+ 'regexLiterals': true
|
|
|
+ }), ['coffee']);
|
|
|
+ registerLangHandler(createSimpleLexer([], [[PR_STRING, /^[\s\S]+/]]), ['regex']);
|
|
|
+
|
|
|
+ function applyDecorator(job) {
|
|
|
+ var opt_langExtension = job.langExtension;
|
|
|
+
|
|
|
+ try {
|
|
|
+
|
|
|
+ var sourceAndSpans = extractSourceSpans(job.sourceNode);
|
|
|
+
|
|
|
+ var source = sourceAndSpans.sourceCode;
|
|
|
+ job.sourceCode = source;
|
|
|
+ job.spans = sourceAndSpans.spans;
|
|
|
+ job.basePos = 0;
|
|
|
+
|
|
|
+
|
|
|
+ langHandlerForExtension(opt_langExtension, source)(job);
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+ recombineTagsAndDecorations(job);
|
|
|
+ } catch (e) {
|
|
|
+ if ('console' in window) {
|
|
|
+ console['log'](e && e['stack'] ? e['stack'] : e);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+ * @param sourceCodeHtml {string} The HTML to pretty print.
|
|
|
+ * @param opt_langExtension {string} The language name to use.
|
|
|
+ * Typically, a filename extension like 'cpp' or 'java'.
|
|
|
+ * @param opt_numberLines {number|boolean} True to number lines,
|
|
|
+ * or the 1-indexed number of the first line in sourceCodeHtml.
|
|
|
+ */
|
|
|
+ function prettyPrintOne(sourceCodeHtml, opt_langExtension, opt_numberLines) {
|
|
|
+ var container = document.createElement('PRE');
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+ container.innerHTML = sourceCodeHtml;
|
|
|
+ if (opt_numberLines) {
|
|
|
+ numberLines(container, opt_numberLines);
|
|
|
+ }
|
|
|
+
|
|
|
+ var job = {
|
|
|
+ langExtension: opt_langExtension,
|
|
|
+ numberLines: opt_numberLines,
|
|
|
+ sourceNode: container
|
|
|
+ };
|
|
|
+ applyDecorator(job);
|
|
|
+ return container.innerHTML;
|
|
|
+ }
|
|
|
+
|
|
|
+ function prettyPrint(opt_whenDone) {
|
|
|
+ function byTagName(tn) { return document.getElementsByTagName(tn); }
|
|
|
+
|
|
|
+ var codeSegments = [byTagName('pre'), byTagName('code'), byTagName('xmp')];
|
|
|
+ var elements = [];
|
|
|
+ for (var i = 0; i < codeSegments.length; ++i) {
|
|
|
+ for (var j = 0, n = codeSegments[i].length; j < n; ++j) {
|
|
|
+ elements.push(codeSegments[i][j]);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ codeSegments = null;
|
|
|
+
|
|
|
+ var clock = Date;
|
|
|
+ if (!clock['now']) {
|
|
|
+ clock = { 'now': function () { return +(new Date); } };
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+ var k = 0;
|
|
|
+ var prettyPrintingJob;
|
|
|
+
|
|
|
+ var langExtensionRe = /\blang(?:uage)?-([\w.]+)(?!\S)/;
|
|
|
+ var prettyPrintRe = /\bprettyprint\b/;
|
|
|
+
|
|
|
+ function doWork() {
|
|
|
+ var endTime = (window['PR_SHOULD_USE_CONTINUATION'] ?
|
|
|
+ clock['now']() + 250 :
|
|
|
+ Infinity);
|
|
|
+ for (; k < elements.length && clock['now']() < endTime; k++) {
|
|
|
+ var cs = elements[k];
|
|
|
+ var className = cs.className;
|
|
|
+ if (className.indexOf('prettyprint') >= 0) {
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+ var langExtension = className.match(langExtensionRe);
|
|
|
+
|
|
|
+ var wrapper;
|
|
|
+ if (!langExtension && (wrapper = childContentWrapper(cs))
|
|
|
+ && "CODE" === wrapper.tagName) {
|
|
|
+ langExtension = wrapper.className.match(langExtensionRe);
|
|
|
+ }
|
|
|
+
|
|
|
+ if (langExtension) {
|
|
|
+ langExtension = langExtension[1];
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+ var nested = false;
|
|
|
+ for (var p = cs.parentNode; p; p = p.parentNode) {
|
|
|
+ if ((p.tagName === 'pre' || p.tagName === 'code' ||
|
|
|
+ p.tagName === 'xmp') &&
|
|
|
+ p.className && p.className.indexOf('prettyprint') >= 0) {
|
|
|
+ nested = true;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ if (!nested) {
|
|
|
+
|
|
|
+
|
|
|
+ var lineNums = cs.className.match(/\blinenums\b(?::(\d+))?/);
|
|
|
+ lineNums = lineNums
|
|
|
+ ? lineNums[1] && lineNums[1].length ? +lineNums[1] : true
|
|
|
+ : false;
|
|
|
+ if (lineNums) { numberLines(cs, lineNums); }
|
|
|
+
|
|
|
+
|
|
|
+ prettyPrintingJob = {
|
|
|
+ langExtension: langExtension,
|
|
|
+ sourceNode: cs,
|
|
|
+ numberLines: lineNums
|
|
|
+ };
|
|
|
+ applyDecorator(prettyPrintingJob);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ if (k < elements.length) {
|
|
|
+
|
|
|
+ setTimeout(doWork, 250);
|
|
|
+ } else if (opt_whenDone) {
|
|
|
+ opt_whenDone();
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ doWork();
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+ * Find all the {@code <pre>} and {@code <code>} tags in the DOM with
|
|
|
+ * {@code class=prettyprint} and prettify them.
|
|
|
+ *
|
|
|
+ * @param {Function?} opt_whenDone if specified, called when the last entry
|
|
|
+ * has been finished.
|
|
|
+ */
|
|
|
+ window['prettyPrintOne'] = prettyPrintOne;
|
|
|
+
|
|
|
+ * Pretty print a chunk of code.
|
|
|
+ *
|
|
|
+ * @param {string} sourceCodeHtml code as html
|
|
|
+ * @return {string} code as html, but prettier
|
|
|
+ */
|
|
|
+ window['prettyPrint'] = prettyPrint;
|
|
|
+
|
|
|
+ * Contains functions for creating and registering new language handlers.
|
|
|
+ * @type {Object}
|
|
|
+ */
|
|
|
+ window['PR'] = {
|
|
|
+ 'createSimpleLexer': createSimpleLexer,
|
|
|
+ 'registerLangHandler': registerLangHandler,
|
|
|
+ 'sourceDecorator': sourceDecorator,
|
|
|
+ 'PR_ATTRIB_NAME': PR_ATTRIB_NAME,
|
|
|
+ 'PR_ATTRIB_VALUE': PR_ATTRIB_VALUE,
|
|
|
+ 'PR_COMMENT': PR_COMMENT,
|
|
|
+ 'PR_DECLARATION': PR_DECLARATION,
|
|
|
+ 'PR_KEYWORD': PR_KEYWORD,
|
|
|
+ 'PR_LITERAL': PR_LITERAL,
|
|
|
+ 'PR_NOCODE': PR_NOCODE,
|
|
|
+ 'PR_PLAIN': PR_PLAIN,
|
|
|
+ 'PR_PUNCTUATION': PR_PUNCTUATION,
|
|
|
+ 'PR_SOURCE': PR_SOURCE,
|
|
|
+ 'PR_STRING': PR_STRING,
|
|
|
+ 'PR_TAG': PR_TAG,
|
|
|
+ 'PR_TYPE': PR_TYPE
|
|
|
+ };
|
|
|
+})();
|
Taylor Otwell
