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https://github.com/Jermolene/TiddlyWiki5
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106f121133
* toc make exclude a proper macro parameter using subfilter instead of enlist * add exclude parameter to TOC documentation tiddler * add exclude parameter to toc-tabbed-xx macros * add from-version to exclude parameter
105 lines
5.0 KiB
Plaintext
105 lines
5.0 KiB
Plaintext
created: 20140919155729620
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modified: 20230427125500432
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tags: Macros [[Core Macros]]
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title: Table-of-Contents Macros
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type: text/vnd.tiddlywiki
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~TiddlyWiki provides several macros for generating a tree of tiddler links by analysing [[tags|Tagging]]:
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;<<.var toc>>
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: A simple tree
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;<<.var toc-expandable>>
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: A tree in which all the branches can be expanded and collapsed
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;<<.var toc-selective-expandable>>
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: A tree in which the non-empty branches can be expanded and collapsed
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;<<.var toc-tabbed-internal-nav>> and <<.var toc-tabbed-external-nav>>
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: A two-panel browser:
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:* on the left, a selectively expandable tree that behaves like a set of vertical tabs
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:* on the right, the content of whichever tiddler the user selects in the tree
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The difference between the last two has to do with what happens when the user clicks a link in the right-hand panel:
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;<<.var toc-tabbed-internal-nav>>
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: The target tiddler appears in the right-hand panel, replacing the tiddler that contained the link
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;<<.var toc-tabbed-external-nav>>
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: The target tiddler appears in the normal way (which depends on the user's configured storyview)
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!! Structure
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The top level of the tree consists of the tiddlers that carry a particular tag, known as the <<.def "root tag">>. Tiddlers tagged with any of those make up the next level down, and so on.
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At each level, the tiddlers can be [[ordered|Order of Tagged Tiddlers]] by means of the <<.field list>> field of the parent tag tiddler. They can also be ordered by the macro's <<.param sort>> parameter.
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The tree displays the <<.field caption>> field of a tiddler if it has one, or the tiddler's title otherwise.
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Each tiddler in the tree is normally displayed as a link. To suppress this, give the tiddler a <<.field toc-link>> field with the the value <<.value no>>. In the [[examples|Table-of-Contents Macros (Examples)]], the SecondThree tiddler is set up like this. Clicking such a tiddler in the tree causes its branch to expand or collapse.
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<<.from-version "5.1.23">> By default, the links open the tiddlers making up the table of contents. Alternatively, if the tiddler contains a <<.field target>> field then its contents will be used as the target of the link.
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The table of contents is generated as an HTML ordered list. The `<ol>` elements always have the class `tc-toc`. Expandable trees have the additional class `tc-toc-expandable`. Selectively expandable trees (including those in the two-panel browser) have `tc-toc-selective-expandable`.
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To make a table of contents appear in the sidebar, see [[How to add a new tab to the sidebar]].
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!! Parameters
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;tag
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: The root tag that identifies the top level of the tree
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;sort
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: An optional extra [[filter step|Filter Step]], e.g. `sort[title]`
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These two parameters are combined into a single [[filter expression|Filter Expression]] like this:
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> `[tag[$tag$]$sort$]`
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<<.var toc-tabbed-internal-nav>> and <<.var toc-tabbed-external-nav>> take additional parameters:
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; selectedTiddler
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: The title of the [[state tiddler|StateMechanism]] for noting the currently selected tiddler, defaulting to `$:/temp/toc/selectedTiddler`. It is recommended that this be a [[system tiddler|SystemTiddlers]]
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; unselectedText
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: The text to display when no tiddler is selected in the tree
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; missingText
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: The text to display if the selected tiddler doesn't exist
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; template
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: Optionally, the title of a tiddler to use as a [[template|TemplateTiddlers]] for transcluding the selected tiddler into the right-hand panel
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; exclude <<.from-version "5.3.0">>
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: This optional parameter can be used to exclude tiddlers from the TOC list. It allows a [[Title List]] or a <<.olink subfilter>>. Eg: `exclude:"HelloThere [[Title with spaces]]"` or `exclude:"[has[excludeTOC]]"`. Where the former will exclude two tiddlers and the later would exclude every tiddler that has a field <<.field excludeTOC>> independent of its value.<br>''Be aware'' that eg: `[prefix[H]]` is a shortcut for `[all[tiddlers]prefix[H]]`, which can have a performance impact, if used carelessly. So use $:/AdvancedSearch -> ''Filters'' tab to test the <<.param exclude>> parameter
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!! Custom Icons
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<<.from-version "5.2.4">>
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To change the icons used by the Table-of-Contents macros, redefine the macros `toc-open-icon` and `toc-closed-icon`. This setting works for all toc-macro variants.
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!!! Default Settings
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* <<.var toc-open-icon>>: `\define toc-open-icon() $:/core/images/down-arrow`
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* <<.var toc-closed-icon>>: `\define toc-closed-icon() $:/core/images/right-arrow`
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!!! Custom Definitions
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The default settings can be overwritten in your code using the define-pragma or the let-widget. The <<.wlink LetWidget>> widget can be used, if you have multiple table of contents macros in one tiddler, that need different icons.
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''Define new icons using a pragma''
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```
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\define toc-open-icon() $:/core/images/fold-button
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\define toc-closed-icon() $:/core/images/folder
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...
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```
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''Define new icons using the let-widget''
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```
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<$let toc-open-icon="$:/core/images/fold-button" toc-closed-icon="$:/core/images/folder">
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...
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</$let>
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```
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!! Examples
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Learn more at [[Examples|Table-of-Contents Macros (Examples)]] |