= Wiki Processors = 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 [wiki:WikiRestructuredText Restructured Text], [wiki:WikiHtml raw HTML] and [http://www.textism.com/tools/textile/ textile] in any Wiki text throughout Trac. == Using Processors == 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
{{{ #!html <h1 style="color: orange">This is raw HTML</h1> }}}}}} '''Results in:''' {{{ #!html
{{{ #!rst A header -------- This is some **text** with a footnote [*]_. .. [*] This is the footnote. }}}}}} '''Results in:''' {{{ #!rst A header -------- 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 "); return 0; } }}}}}} '''Results in:''' {{{ #!c int main(int argc, char *argv[]) { printf("Hello World "); return 0; } }}} ---- == Available Processors == 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 [http://dealmeida.net/projects/textile/ Textile] is installed. See [http://hobix.com/textile/ a Textile reference]. Textile link above is rotten. [http://www.textism.com/tools/textile/ this one] works, allows to test example. === Code Highlighting Support === Trac includes processors to provide inline [wiki:TracSyntaxColoring 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