Changes between Initial Version and Version 1 of WikiProcessors


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Timestamp:
10/31/05 17:17:29 (19 years ago)
Author:
trac
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  • WikiProcessors

    v1 v1  
     1= Wiki Processors = 
     2Processors are WikiMacros designed to provide alternative markup formats for the Trac Wiki engine. Processors can be thought of as ''macro functions to process user-edited text''.  
     3 
     4The wiki engine uses processors to allow using [wiki:WikiRestructuredText Restructured Text] and [wiki:WikiHtml raw HTML] in any wiki text throughout Trac. 
     5 
     6== Using Processors == 
     7To use a processor on a block of text, use a wiki blockquote, selecting a processor by name using 'hashbang notation' (#!), familiar to most UNIX users from scripts. 
     8 
     9'''Example 1''' (''inserting raw HTML in a wiki text''): 
     10 
     11{{{ 
     12#!html 
     13<pre class="wiki">{{{ 
     14#!html 
     15&lt;h1 style="color: orange"&gt;This is raw HTML&lt;/h1&gt; 
     16}}}</pre> 
     17}}} 
     18 
     19'''Results in:''' 
     20{{{ 
     21#!html 
     22<h1 style="color: orange">This is raw HTML</h1> 
     23}}} 
     24 
     25---- 
     26 
     27'''Example 2''' (''inserting Restructured Text in wiki text''): 
     28 
     29{{{ 
     30#!html 
     31<pre class="wiki">{{{ 
     32#!rst 
     33A header 
     34-------- 
     35This is some **text** with a footnote [*]_. 
     36 
     37.. [*] This is the footnote. 
     38}}}</pre> 
     39}}} 
     40 
     41'''Results in:''' 
     42{{{ 
     43#!rst 
     44A header 
     45-------- 
     46This is some **text** with a footnote [*]_. 
     47 
     48.. [*] This is the footnote. 
     49}}} 
     50---- 
     51'''Example 3''' (''inserting a block of C source code in wiki text''): 
     52 
     53{{{ 
     54#!html 
     55<pre class="wiki">{{{ 
     56#!c 
     57int main(int argc, char *argv[]) 
     58{ 
     59  printf("Hello World\n"); 
     60  return 0; 
     61} 
     62}}}</pre> 
     63}}} 
     64 
     65'''Results in:''' 
     66{{{ 
     67#!c 
     68int main(int argc, char *argv[]) 
     69{ 
     70  printf("Hello World\n"); 
     71  return 0; 
     72} 
     73}}} 
     74 
     75---- 
     76 
     77 
     78 
     79== Available Processors == 
     80The following processors are included in the Trac distribution: 
     81 * '''html''' -- Insert custom HTML in a wiki page. See WikiHtml. 
     82 * '''rst''' -- Trac support for Restructured Text. See WikiRestructuredText. 
     83 * '''textile''' -- Initial support as of aug 2, 2004.  See [http://projects.edgewall.com/trac/ticket/593 ticket 593] and [http://dealmeida.net/projects/textile/ Textile]. 
     84 
     85=== Source Code Support === 
     86Trac includes processors to provide inline [wiki:TracSyntaxColoring syntax highlighting] for these languages: 
     87 * '''c''' -- C 
     88 * '''cpp''' -- C++ 
     89 * '''python''' -- Python 
     90 * '''perl''' -- Perl 
     91 * '''ruby''' -- Ruby 
     92 * '''php''' -- PHP 
     93 * '''asp''' --- ASP 
     94 * '''sql''' -- SQL 
     95 * '''xml''' -- XML 
     96'''Note:''' ''Trac relies on external software packages for syntax coloring. See TracSyntaxColoring for more info.'' 
     97 
     98By using the mime-type as processor, it is posible to syntax-highlight the same languages that are supported when browsing source code.  (The list of mime-types can be found in [source:trunk/trac/Mimeview.py Mimeview.py]). 
     99 
     100For example, you can write: 
     101 
     102{{{ 
     103{{{ 
     104#!text/html 
     105<h1>text</h1> 
     106}}} 
     107}}} 
     108 
     109The result will be syntax highlighted html code. The same is valid for all other mime types supported. 
     110 
     111 
     112 
     113For more processor macros developed and/or contributed by users, visit the macro bazaar:  
     114 http://projects.edgewall.com/trac/wiki/MacroBazaar 
     115 
     116---- 
     117== Advanced Topics: Developing Processor Macros == 
     118Developing processors is no different than WikiMacros. In fact they work the same way, only the usage syntax differs. See WikiMacros for more information. 
     119 
     120'''Example:''' (''Restructured Text Processor''): 
     121{{{ 
     122from docutils.core import publish_string 
     123 
     124def execute(hdf, text, env): 
     125    html = publish_string(text, writer_name = 'html') 
     126    return html[html.find('<body>')+6:html.find('</body>')].strip() 
     127}}} 
     128 
     129---- 
     130See also : WikiMacros, WikiHtml, WikiRestructuredText, TracSyntaxColoring, WikiFormatting, TracGuide