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1. Table of Contents and Cross-Reference Plugin

This topic describes the facilities provided by the TOC TWiki Plugin for the support of documentation generation. The extensions support definition of an order among the topics in the web for the generation of tables of contents, together with cross-references that operate within, as well as between, topics.

1.1. Installation and Configuration

Installation of the Plugin is straightforward. Simply unpack the tar file at the top level of your TWiki installation.

1.1.1. The WebOrder special topic

The documentation extensions depend on the existance of a special topic called WebOrder, which is is analagous to a Framemaker "book". This topic should contain a list of the topics you want included. This list must be formatted as a TWiki-format bulleted list e.g.
   * PageOne
   * [[Page two]]
Both WikiWords and [[Odd Wiki Words]] may be used to refer to topics.


1.2. Attributes on documentation tags

Following the TWiki standard, attributes are used to pass values to tags to control their behaviour. Attributes are given as a list of name = value pairs enclosed in curly braces {} after the tag name. For example:
%REF{type=Figure,topic="SpidersOfTheWorld",name="The Funnel Web"}%


1.3. Sections and Tables of Contents

1.3.1. Creating sections using the SECTION tag

Supported attributes: name

Subsections may be inserted in any topic using the SECTIONn tag, where n is the required subsection level. The heading of the section is taken as all text after the tag up to the end of line. For example, the heading at the top of this section is marked with

%SECTION1{name=SECTION}% Creating sections using the =SECTION= tag


If a %SECTION0% tag occurs in a topic, the heading of that section will replace the topic name in the table of contents.


1.3.2. Building the table of contents; the %TOC% tag

Supported attributes: depth topic

You can build a table of contents by inserting

in a topic. The first level of the table of contents is normally the topics in the order of the list in WebOrder, though see 1.5. Getting clever for information about modifying section numbering from the WebOrder topic. Subsections listed in the table are automatically linked to the target SECTION. Output from %CONTENTS{depth=2}% tag for this web Table of contents for this web Output from %CONTENTS% tag for this topic Table of contents for this topic

1.3.3. The TOCCHECK tag

Supported attributes: none

Any topic (but most usually the WebOrder topic) may include the

tag. This causes the entries in the WebOrder topic to be cross-referenced against the files actually stored in the web (see WebIndex?). Any topics which exist as files in the web but are missing from the WebOrder will be listed.

NOTES Output from the %TOCCHECK% tag for this web Output of the %TOCCHECK% tag

1.4. Anchors and References - the ANCHOR, REF and REFTABLE tags

Bookmarks and references can be inserted into text using the ANCHOR and REF tags. These can be used for references, for example, to tables or figures.


1.4.1. The ANCHOR tag

Supported attributes: type name display

The ANCHOR tag creates a jump target suitable for jumping to from somewhere else. The type adds the anchor to a "group"; this group is required when generating a reference to the anchor, and may be used to generate tables of same-type anchors (see 1.4.3. The REFTABLE tag below). The type can be any name, though convention suggests the use of types such as Figure and Table. The special group Section is used internally to refer to sections and subsections. Avoid using it for an ANCHOR or you may see strange results.

The ANCHOR tag is normally visible in the output, though it may be made invisible by setting the display attribute to no . For example:

%ANCHOR{type=Figure,name=A,display=no}% Here be sea
will generate an invisible anchor on the text (there's one one the line above, honest!) and
<A name="#Figure_A"> </A>
%ANCHOR{type=Table,name=A}% A wooden table
will generate: 1.4.1.A A wooden table

All the text between the anchor and the next end-of-line will be used to create the anchor. If the anchor is invisible, this text will be invisible too.

1.4.2. The REF tag

Supported attributes: type topic name

The REF tag may be used to refer to an anchor. Anchors are automatically inserted by SECTION tags or may be added using the ANCHOR tag. For a REF tag to work, the type of the target must be known. For example:

See %REF{type=Example,name=WebOrder}% for more information about WebOrder
will generate:

See 1.1.1.A The Weborder topic for more information about WebOrder

To refer to anchors in a different topic, use the topic attribute. You can refer to sections by name by using the special type Section e.g. %REF{type=Section,name=TOCCHECK}%.

If you refer to a non-existant anchor you are warned: for example,


Reference TocPluginHelp:Reference:NonExistantAnchor not satisfied

1.4.3. The REFTABLE tag

Supported attributes: type

The REFTABLE tag can be used to build tables of references based on the type assigned to anchors. For example, if you have a lot of anchors of type Example you can build a table of all these anchors thus:

This will insert a table like this:
1.1.1.A The Weborder topic Table of contents for this web Table of contents for this topic Output of the %TOCCHECK% tag
1.4.3.A REFTABLE{type=Table} example
1.4.3.B REFTABLE{type=Figure} example
1.4.3.C REFTABLE{type=Section} example %REFTABLE{type=Section}%
will insert a table like this:
1.4.1.A Here be sea monsters
All topics listed in the WebOrder are scanned, but only anchors of the requested type will be listed.


1.5. Getting clever

It is possible to change the way the table of contents for the web is ordered by using extra levels of indent in the WebOrder. If you indent a topic below another topic, then that topic will be treated as a section of the parent topic. Section numbers within the subtopic are adjusted accordingly. For example, say the WebOrder contains
   * [[Top level topic]]
   * AnotherTopLevelTopic
TopLevelTopic will be numbered 1., and the first SECTION1 within TopLevelTopic will be 1.1. AnotherTopLevelTopic will be numbered 2. If, instead, WebOrder contains
   * [[Top level topic]]
      * [[Second level topic]]
   * AnotherTopLevelTopic
TopLevelTopic will still be numbered 1., but now SecondLevelTopic will be numbered 1.1., and the first SECTION1 within SecondLevelTopic will be 1.1.1. The first SECTION1 within TopLevelTopic will now be numbered 1.2. AnotherTopLevelTopic will still be numbered 2.

1.6. Hints and Tips

1.7. Further development

Further development of this Plugin is welcomed. It is recommended that you unpack the distribution into a development directory and use the supplied Ant build file (twikitoc.xml) which includes targets to test and install your development code into a test installation.

1.8. Copyright

The TOC Plugin is a development of the Architectures and Systems Platforms group of Motorola Inc. and is protected by the following copyrights:

1.9. License

As required for the publication of all extensions to TWiki, the software is published under the terms of the GNU General Public License.

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, published at

1. Table of Contents and Cross-Reference Plugin 2. TocPlugin
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