Changes between Version 1 and Version 2 of WikiMacros
- Timestamp:
- Jan 30, 2006, 11:09:16 PM (18 years ago)
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WikiMacros
v1 v2 2 2 Trac macros are plugins to extend the Trac engine with custom 'functions' written in Python. A macro inserts dynamic HTML data in any context supporting WikiFormatting. 3 3 4 Another kind of macros are WikiProcessors. They typically deal with alternate markup formats and representation of larger blocks of information (like source code highlighting). See also: WikiProcessors.4 Another kind of macros are WikiProcessors. They typically deal with alternate markup formats and representation of larger blocks of information (like source code highlighting). 5 5 6 6 == Using Macros == … … 23 23 == Available Macros == 24 24 25 Macros are still a relatively new feature, and the list of available (and distributed) macros is 26 admittedly not very impressive. In future Trac releases, we hope to build a library of useful macros, and will of course happily include contributed macros (see below). 25 ''Note that the following list will only contain the macro documentation if you've not enabled `-OO` optimizations, or not set the `PythonOptimize` option for [wiki:TracModPython mod_python].'' 27 26 28 27 [[MacroList]] 29 28 30 29 == Macros from around the world == 31 The [http://projects.edgewall.com/trac/ Trac Project] has a section dedicated to user-contributed macros, [wiki:MacroBazaar MacroBazaar]. If you're looking for new macros, or have written new ones to share with the world, don't hesitate adding it to the [wiki:MacroBazaar MacroBazaar] wiki page. 32 33 http://projects.edgewall.com/trac/wiki/MacroBazaar 34 30 The [http://projects.edgewall.com/trac/ Trac Project] has a section dedicated to user-contributed macros, [http://projects.edgewall.com/trac/wiki/MacroBazaar MacroBazaar]. If you're looking for new macros, or have written new ones to share with the world, don't hesitate adding it to the [http://projects.edgewall.com/trac/wiki/MacroBazaar MacroBazaar] wiki page. 35 31 36 32 ---- 37 33 38 39 == Developing New Macros == 34 == Developing Custom Macros == 40 35 Macros, like Trac itself, are written in the [http://www.python.org/ Python programming language]. They are very simple modules, identified by the filename and should contain a single ''entry point'' function. Trac will display the returned data inserted into the HTML where the macro was called. 41 36 … … 49 44 }}} 50 45 51 === Advanced Topics: Template-enabled Macros === 52 For advanced uses, macros can also render structured output in HDF, to be rendered to HTML using clearsilver templates - like most Trac output. In short, this allows more generic and well-designed advanced macros. 53 54 Macros gain direct access to the main HDF tree, and are free to manipulate it. 55 56 Example: 57 {{{ 58 #!python 59 def execute(hdf, args, env): 60 # Currently hdf is set only when the macro is called 61 # from a wiki page. 62 if hdf: 63 hdf.setValue('wiki.macro.greeting', 'Hello World') 64 65 # args will be null if the macro is called without parentheses. 66 args = args or 'No arguments' 67 return 'Hello World, args = ' + args 68 }}} 69 70 You can also use the environment (env) object to access configuration data. 71 72 Example. 46 You can also use the environment (`env`) object, for example to access configuration data and the database, for example: 73 47 {{{ 74 48 #!python … … 77 51 }}} 78 52 79 Here is information on the different WikiMacroObjects. 53 Note that since version 0.9, wiki macros can also be written as TracPlugins. This gives them some capabilities than “classic” macros do not have, such as directly access the HTTP request. 54 55 For more information about developing macros, see the [http://projects.edgewall.com/trac/wiki/TracDev development resources] on the main project site. 80 56 81 57 ---- 82 See also: WikiProcessors, WikiFormatting, TracGuide , WikiMacroObjects58 See also: WikiProcessors, WikiFormatting, TracGuide
