Context Navigation

TracNav

Wiki help

Wiki Macros

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.

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.

Using Macros

Macro calls are enclosed in two square brackets. Like python functions, macros can also have arguments, a comma separated list within parenthesis.

Examples

 [[Timestamp]]

Display:

Timestamp?

 [[HelloWorld(Testing)]]

Display:

HelloWorld(Testing)?

Available Macros

Macros are still a new feature, and the list of available (and distributed) macros is 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).

HelloWorld -- An example macro, useful for learning how to write macros.
Timestamp -- Insert the current date and time.

`[[Image]]`

Embed an image in wiki-formatted text.

The first argument is the file specification. The file specification may reference attachments in three ways:

module:id:file, where module can be either wiki or ticket, to refer to the attachment named file of the specified wiki page or ticket.
id:file: same as above, but id is either a ticket shorthand or a Wiki page name.
file to refer to a local attachment named 'file'. This only works from within that wiki page or a ticket.

Also, the file specification may refer to repository files, using the source:file syntax (source:file@rev works also).

Files can also be accessed with a direct URLs; /file for a project-relative, //file for a server-relative, or http://server/file for absolute location of the file.

The remaining arguments are optional and allow configuring the attributes and style of the rendered <img> element:

digits and unit are interpreted as the size (ex. 120, 25%) for the image
right, left, center, top, bottom and middle are interpreted as the alignment for the image (alternatively, the first three can be specified using align=... and the last three using valign=...)
link=some TracLinks... replaces the link to the image source by the one specified using a TracLinks. If no value is specified, the link is simply removed.
nolink means without link to image source (deprecated, use link=)
key=value style are interpreted as HTML attributes or CSS style indications for the image. Valid keys are:
- align, valign, border, width, height, alt, title, longdesc, class, margin, margin-(left,right,top,bottom), id and usemap
- border, margin, and margin-* can only be a single number
- margin is superseded by center which uses auto margins

Examples:

    [[Image(photo.jpg)]]                           # simplest
    [[Image(photo.jpg, 120px)]]                    # with image width size
    [[Image(photo.jpg, right)]]                    # aligned by keyword
    [[Image(photo.jpg, nolink)]]                   # without link to source
    [[Image(photo.jpg, align=right)]]              # aligned by attribute

You can use image from other page, other ticket or other module.

    [[Image(OtherPage:foo.bmp)]]    # if current module is wiki
    [[Image(base/sub:bar.bmp)]]     # from hierarchical wiki page
    [[Image(#3:baz.bmp)]]           # if in a ticket, point to #3
    [[Image(ticket:36:boo.jpg)]]
    [[Image(source:/images/bee.jpg)]] # straight from the repository!
    [[Image(htdocs:foo/bar.png)]]   # image file in project htdocs dir.

Adapted from the Image.py macro created by Shun-ichi Goto <gotoh@…>

`[[InterTrac]]`

Provide a list of known InterTrac? prefixes.

`[[KnownMimeTypes]]`

List all known mime-types which can be used as WikiProcessors.

Can be given an optional argument which is interpreted as mime-type filter.

`[[MacroList]]`

Display a list of all installed Wiki macros, including documentation if available.

Optionally, the name of a specific macro can be provided as an argument. In that case, only the documentation for that macro will be rendered.

Note that this macro will not be able to display the documentation of macros if the PythonOptimize option is enabled for mod_python!

`[[PageOutline]]`

Display a structural outline of the current wiki page, each item in the outline being a link to the corresponding heading.

This macro accepts three optional parameters:

The first is a number or range that allows configuring the minimum and maximum level of headings that should be included in the outline. For example, specifying "1" here will result in only the top-level headings being included in the outline. Specifying "2-3" will make the outline include all headings of level 2 and 3, as a nested list. The default is to include all heading levels.
The second parameter can be used to specify a custom title (the default is no title).
The third parameter selects the style of the outline. This can be either inline or pullout (the latter being the default). The inline style renders the outline as normal part of the content, while pullout causes the outline to be rendered in a box that is by default floated to the right side of the other content.

`[[RecentChanges]]`

List all pages that have recently been modified, grouping them by the day they were last modified.

This macro accepts two parameters. The first is a prefix string: if provided, only pages with names that start with the prefix are included in the resulting list. If this parameter is omitted, all pages are listed.

The second parameter is a number for limiting the number of pages returned. For example, specifying a limit of 5 will result in only the five most recently changed pages to be included in the list.

`[[RecentTopics]]`

Lists all topics that have been recently active grouping them by the day they were lastly active. This macro accepts two parameters. The first is a forum ID. If provided, only topics in that forum are included in the resulting list. If omitted, topics from all forums are listed. The second parameter is a number for limiting the number of topics returned. For example, specifying a limit of 5 will result in only the five most recently active topics to be included in the list.

`[[RepositoryIndex]]`

Display the list of available repositories.

Can be given the following named arguments:

format

Select the rendering format:

compact produces a comma-separated list of repository prefix names (default)
list produces a description list of repository prefix names
table produces a table view, similar to the one visible in the Browse View page

glob

Do a glob-style filtering on the repository names (defaults to '*')

order

Order repositories by the given column (one of "name", "date" or "author")

desc

When set to 1, order by descending order

(since 0.12)

`[[TitleIndex]]`

Insert an alphabetic list of all wiki pages into the output.

Accepts a prefix string as parameter: if provided, only pages with names that start with the prefix are included in the resulting list. If this parameter is omitted, all pages are listed. If the prefix is specified, a second argument of value hideprefix can be given as well, in order to remove that prefix from the output.

Alternate format and depth named parameters can be specified:

format=compact: The pages are displayed as comma-separated links.
format=group: The list of pages will be structured in groups according to common prefix. This format also supports a min=n argument, where n is the minimal number of pages for a group.
format=hierarchy: The list of pages will be structured according to the page name path hierarchy. This format also supports a min=n argument, where higher n flatten the display hierarchy
depth=n: limit the depth of the pages to list. If set to 0, only toplevel pages will be shown, if set to 1, only immediate children pages will be shown, etc. If not set, or set to -1, all pages in the hierarchy will be shown.
include=page1:page*2: include only pages that match an item in the colon-separated list of pages. If the list is empty, or if no include argument is given, include all pages.
exclude=page1:page*2: exclude pages that match an item in the colon- separated list of pages.

The include and exclude lists accept shell-style patterns.

`[[TracAdminHelp]]`

Display help for trac-admin commands.

Examples:

[[TracAdminHelp]]               # all commands
[[TracAdminHelp(wiki)]]         # all wiki commands
[[TracAdminHelp(wiki export)]]  # the "wiki export" command
[[TracAdminHelp(upgrade)]]      # the upgrade command

`[[TracGuideToc]]`

Display a table of content for the Trac guide.

This macro shows a quick and dirty way to make a table-of-contents for the Help/Guide?. The table of contents will contain the Trac* and WikiFormatting pages, and can't be customized. Search for TocMacro? for a a more customizable table of contents.

`[[TracIni]]`

Produce documentation for the Trac configuration file.

Typically, this will be used in the TracIni page. Optional arguments are a configuration section filter, and a configuration option name filter: only the configuration options whose section and name start with the filters are output.

`[[TracNav]]`

TracNav: The Navigation Bar for Trac

This macro implements a fully customizable navigation bar for the Trac wiki engine. The contents of the navigation bar is a wiki page itself and can be edited like any other wiki page through the web interface. The navigation bar supports hierarchical ordering of topics. The design of TracNav mimics the design of the TracGuideToc that was originally supplied with Trac. The drawback of TracGuideToc is that it is not customizable without editing its source code and that it does not support hierarchical ordering.

Installation

See http://trac.edgewall.org/wiki/TracPlugins.

Usage

To use TracNav, create an index page for your site and call the TracNav? macro on each page, where the navigation bar should be displayed. The index page is a regular wiki page. The page with the table of contents must include an unordered list of links that should be displayed in the navigation bar.

To display the navigation bar on a page, you must call the TracNav macro on that page an pass the name of your table of contents as argument.

Additional information and a life example

Please visit: http://svn.ipd.uka.de/trac/javaparty/wiki/TracNav.

Author and License

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

`[[ViewTopic]]`

Displays content of a discussion topic. If no argument passed tries to find the topic with the same name as is the name of the current wiki page. If the topic name is passed, displays that topic.

`[[forumlinks]]`

A Trac macro that provides wiki specific links to a phpBB forum.

`[[protected-green]]`

Aliases: [[protected]] [[protected-red]] [[protected-blue]]

A Trac macro to limit access to parts of a trac page.

Macros from around the world

The Trac Project has a section dedicated to user-contributed macros, 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 MacroBazaar wiki page.

http://projects.edgewall.com/trac/wiki/MacroBazaar

Developing New Macros

Macros, like Trac itself, are written in the 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.

It's easiest to learn from an example:

# MyMacro.py -- The world's simplest macro

def execute(hdf, args, env):
    return "Hello World called with args: %s" % args

Advanced Topics: Template-enabled Macros

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.

Macros gain direct access to the main HDF tree, and are free to manipulate it.

Example:

def execute(hdf, args, env):
    # Currently hdf is set only when the macro is called
    # From a wiki page
    if hdf:
        hdf.setValue('wiki.macro.greeting', 'Hello World')
        
    # args will be null if the macro is called without parentesis.
    args = args or 'No arguments'
    return 'Hello World, args = ' + args

You can also use the environment (env) object to access configuration data.

Example.

def execute(hdf, txt, env):
    return env.get_config('trac', 'repository_dir')

See also: WikiProcessors, WikiFormatting, TracGuide

Download in other formats:

Plain Text

Context Navigation

TracNav

Wiki help

Wiki Macros

Using Macros

Examples

Available Macros

[[Image]]

[[InterTrac]]

[[KnownMimeTypes]]

[[MacroList]]

[[PageOutline]]

[[RecentChanges]]

[[RecentTopics]]

[[RepositoryIndex]]

[[TitleIndex]]

[[TracAdminHelp]]

[[TracGuideToc]]

[[TracIni]]

[[TracNav]]