Changes between Initial Version and Version 1 of WikiProcessors

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9/17/2009 5:03:28 PM (15 years ago)
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trac (IP: 127.0.0.1)
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  • WikiProcessors

    v1 v1  
     1= Wiki Processors = 
     2 
     3Processors are WikiMacros designed to provide alternative markup formats for the [TracWiki Wiki engine]. Processors can be thought of as ''macro functions to process user-edited text''.  
     4 
     5The Wiki engine uses processors to allow using [wiki:WikiRestructuredText Restructured Text], [wiki:WikiHtml raw HTML] and [http://www.textism.com/tools/textile/ textile] in any Wiki text throughout Trac. 
     6 
     7 
     8== Using Processors == 
     9 
     10To use a processor on a block of text, use a Wiki code block, selecting a processor by name using ''shebang notation'' (#!), familiar to most UNIX users from scripts. 
     11 
     12'''Example 1''' (''inserting raw HTML in a wiki text''): 
     13 
     14{{{ 
     15#!html 
     16<pre class="wiki">{{{ 
     17#!html 
     18&lt;h1 style="color: orange"&gt;This is raw HTML&lt;/h1&gt; 
     19}}}</pre> 
     20}}} 
     21 
     22'''Results in:''' 
     23{{{ 
     24#!html 
     25<h1 style="color: orange">This is raw HTML</h1> 
     26}}} 
     27 
     28Note that since 0.11, such blocks of HTML have to be self-contained, i.e. you can't start an HTML element in one block and close it later in a second block. Use div or span processors for achieving similar effect (see WikiHtml). 
     29 
     30---- 
     31 
     32'''Example 2''' (''inserting Restructured Text in wiki text''): 
     33 
     34{{{ 
     35#!html 
     36<pre class="wiki">{{{ 
     37#!rst 
     38A header 
     39-------- 
     40This is some **text** with a footnote [*]_. 
     41 
     42.. [*] This is the footnote. 
     43}}}</pre> 
     44}}} 
     45 
     46'''Results in:''' 
     47{{{ 
     48#!rst 
     49A header 
     50-------- 
     51This is some **text** with a footnote [*]_. 
     52 
     53.. [*] This is the footnote. 
     54}}} 
     55---- 
     56'''Example 3''' (''inserting a block of C source code in wiki text''): 
     57 
     58{{{ 
     59#!html 
     60<pre class="wiki">{{{ 
     61#!c 
     62int main(int argc, char *argv[]) 
     63{ 
     64  printf("Hello World\n"); 
     65  return 0; 
     66} 
     67}}}</pre> 
     68}}} 
     69 
     70'''Results in:''' 
     71{{{ 
     72#!c 
     73int main(int argc, char *argv[]) 
     74{ 
     75  printf("Hello World\n"); 
     76  return 0; 
     77} 
     78}}} 
     79 
     80---- 
     81 
     82== Available Processors == 
     83The following processors are included in the Trac distribution: 
     84 * '''html''' -- Insert custom HTML in a wiki page. See WikiHtml. 
     85 * '''div''' -- Wrap an arbitrary Wiki content in a <div> element (''since 0.11''). See WikiHtml. 
     86 * '''span''' -- Wrap an arbitrary Wiki content in a <span> element (''since 0.11''). See also WikiHtml. 
     87 * '''rst''' -- Trac support for Restructured Text. See WikiRestructuredText. 
     88 * '''textile''' -- Supported if [http://cheeseshop.python.org/pypi/textile Textile] is installed. See [http://www.textism.com/tools/textile/ a Textile reference]. 
     89 * '''comment''' -- Do not process the text in this section (i.e. contents exist only in the plain text - not in the rendered page). 
     90 
     91=== Code Highlighting Support === 
     92Trac includes processors to provide inline [wiki:TracSyntaxColoring syntax highlighting] for the following languages: 
     93 * '''c''' -- C 
     94 * '''cpp''' -- C++ 
     95 * '''python''' -- Python 
     96 * '''perl''' -- Perl 
     97 * '''ruby''' -- Ruby 
     98 * '''php''' -- PHP 
     99 * '''asp''' -- ASP 
     100 * '''java''' -- Java 
     101 * '''js''' -- Javascript 
     102 * '''sql''' -- SQL 
     103 * '''xml''' -- XML 
     104 * '''sh''' -- Bourne/Bash shell 
     105 
     106'''Note:''' ''Trac relies on external software packages for syntax coloring. See TracSyntaxColoring for more info.'' 
     107 
     108By using the MIME type as processor, it is possible to syntax-highlight the same languages that are supported when browsing source code. For example, you can write: 
     109{{{ 
     110{{{ 
     111#!text/html 
     112<h1>text</h1> 
     113}}} 
     114}}} 
     115 
     116The result will be syntax highlighted HTML code: 
     117{{{ 
     118#!text/html 
     119<h1>text</h1> 
     120}}} 
     121 
     122The same is valid for all other mime types supported. 
     123 
     124 
     125For more processor macros developed and/or contributed by users, visit:  
     126 * [trac:ProcessorBazaar] 
     127 * [trac:MacroBazaar] 
     128 * [th:WikiStart Trac Hacks] community site 
     129 
     130 
     131== Advanced Topics: Developing Processor Macros == 
     132Developing processors is no different from Wiki macros. In fact they work the same way, only the usage syntax differs. See WikiMacros for more information. 
     133 
     134 
     135---- 
     136See also: WikiMacros, WikiHtml, WikiRestructuredText, TracSyntaxColoring, WikiFormatting, TracGuide