Changes between Initial Version and Version 1 of 0.11/WikiProcessors

Timestamp:

Apr 10, 2010, 7:39:50 PM (14 years ago)

Author:

Christian Boos

Comment:

archiving wiki:/WikiProcessors@44

0.11/WikiProcessors

@@ +1 @@
+= 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
+<h1 style="color: orange">This is raw HTML</h1>
+}}}
+}}}
+
+'''Results in:'''
+{{{
+#!html
+<h1 style="color: orange">This is raw HTML</h1>
+}}}
+
+Note 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).
+
+----
+
+'''Example 2''' (''inserting Restructured Text in wiki text''):
+
+{{{
+{{{
+#!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''):
+
+{{{
+{{{
+#!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;
+}
+}}}
+
+----
+'''Example 4''' (''Searching from a wiki page by custom field. Allows user to reuse most common searches on a wiki page''):
+
+{{{
+{{{
+#!html
+<form action="/query" method="get">
+<input type="text" name="keywords" value="~" size="30"> <input type="submit" value="Search by Keywords#">
+<!-- To control what fields show up use hidden fields
+<input type="hidden" name="col" value="id">
+<input type="hidden" name="col" value="summary">
+<input type="hidden" name="col" value="status">
+<input type="hidden" name="col" value="milestone">
+<input type="hidden" name="col" value="version">
+<input type="hidden" name="col" value="owner">
+<input type="hidden" name="col" value="priority">
+<input type="hidden" name="col" value="component">
+-->
+</form>
+}}}
+}}}
+
+
+''' Result:'''
+{{{
+#!html
+<form action="/query" method="get">
+<input type="text" name="keywords" value="~" size="30"> <input type="submit" value="Search by Keywords#">
+<!-- To control what fields show up use hidden fields
+<input type="hidden" name="col" value="id">
+<input type="hidden" name="col" value="summary">
+<input type="hidden" name="col" value="status">
+<input type="hidden" name="col" value="milestone">
+<input type="hidden" name="col" value="version">
+<input type="hidden" name="col" value="owner">
+<input type="hidden" name="col" value="priority">
+<input type="hidden" name="col" value="component">
+-->
+</form>
+}}}
+
+
+----
+
+== Available Processors ==
+The following processors are included in the Trac distribution:
+ * '''html''' -- Insert custom HTML in a wiki page. See WikiHtml.
+ * '''div''' -- Wrap an arbitrary Wiki content in a <div> element (''since 0.11''). See WikiHtml.
+ * '''span''' -- Wrap an arbitrary Wiki content in a <span> element (''since 0.11''). See also WikiHtml.
+ * '''rst''' -- Trac support for Restructured Text. See WikiRestructuredText.
+ * '''textile''' -- Supported if [http://cheeseshop.python.org/pypi/textile Textile] is installed. See [http://www.textism.com/tools/textile/ a Textile reference].
+ * '''comment''' -- Do not process the text in this section (i.e. contents exist only in the plain text that can be viewed when editing the wiki page content - not in the rendered page).
+ * '''diff''' -- Pretty print patches and diffs.
+
+=== Code Highlighting Support ===
+Trac includes processors to provide inline [wiki:TracSyntaxColoring syntax highlighting] for the following languages:
+ * '''c''' -- C
+ * '''cpp''' -- C++
+ * '''csharp''' --- C#
+ * '''python''' -- Python
+ * '''perl''' -- Perl
+ * '''ruby''' -- Ruby
+ * '''php''' -- PHP
+ * '''asp''' -- ASP
+ * '''java''' -- Java
+ * '''js''' -- Javascript
+ * '''sql''' -- SQL
+ * '''xml''' -- XML
+ * '''sh''' -- Bourne/Bash shell
+
+'''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:
+{{{
+#!text/html
+<h1>text</h1>
+}}}
+
+The same is valid for all other [TracSyntaxColoring#SyntaxColoringSupport mime types supported].
+
+
+For more processor macros developed and/or contributed by users, visit: 
+ * [trac:ProcessorBazaar]
+ * [trac:MacroBazaar]
+ * [th:WikiStart Trac Hacks] community site
+
+
+== Advanced Topics: Developing Processor Macros ==
+Developing processors is no different from Wiki macros. In fact they work the same way, only the usage syntax differs. See WikiMacros for more information.
+
+
+----
+See also: WikiMacros, WikiHtml, WikiRestructuredText, TracSyntaxColoring, WikiFormatting, TracGuide