access_WikiProcessors - ACCESS-NRI/accessdev-Trac-archive GitHub Wiki
Processors 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.
The Wiki engine uses processors to allow using Restructured Text, raw HTML and textile in any Wiki text throughout Trac.
To 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.
Example 1 (inserting raw HTML in a wiki text):
#!html
<pre class="wiki">[{
#!html
<h1 style="color: orange">This is raw HTML</h1>
```</pre>
]}
**Results in:**
#!html
```Example 2 (inserting Restructured Text in wiki text):
#!html
<pre class="wiki">[{
#!rst
A header
--------
This is some **text** with a footnote [*]_.
.. [*] This is the footnote.
```</pre>
]}
**Results in:**
This is some text with a footnote [*]_.
.. [*] This is the footnote.
----
**Example 3** (*inserting a block of C source code in wiki text*):
#!html
[{ #!c int main(int argc, char *argv[]) { printf("Hello World\n"); return 0; } ```
]}
Results in:
#!c
int main(int argc, char *argv[])
{
printf("Hello World\n");
return 0;
}
The following processors are included in the Trac distribution:
- html -- Insert custom HTML in a wiki page. See WikiHtml.
- rst -- Trac support for Restructured Text. See WikiRestructuredText.
- textile -- Supported if Textile is installed. See a Textile reference.
Textile link above is rotten. this one works, allows to test example.
Trac includes processors to provide inline syntax highlighting for the following languages:
- c -- C
- cpp -- C++
- python -- Python
- perl -- Perl
- ruby -- Ruby
- php -- PHP
- asp --- ASP
- sql -- SQL
- xml -- XML Note: Trac relies on external software packages for syntax coloring. See TracSyntaxColoring for more info.
By 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:
[{
#!text/html
<h1>text</h1>
]}
The result will be syntax highlighted HTML code. The same is valid for all other mime types supported.
For more processor macros developed and/or contributed by users, visit:
Developing processors is no different from WikiMacros. In fact they work the same way, only the usage syntax differs. See WikiMacros for more information.
Example: (Restructured Text Processor):
#!python
from docutils.core import publish_string
def execute(hdf, text, env):
html # publish_string(text, writer_name 'html')
return html[html.find('<body>')+6:html.find('</body>')].strip()
See also: WikiMacros, WikiHtml, WikiRestructuredText, TracSyntaxColoring, WikiFormatting, TracGuide