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61 lines
2.5 KiB
61 lines
2.5 KiB
4 years ago
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Included in:
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- user-manual
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=== Side Column Placement
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// tag::column[]
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When converting to HTML, you can position the TOC to the left or right of the main content column by assigning the value `left` or `right` to the `toc` attribute, respectively.
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In this case, the sidebar column containing the TOC is both fixed and scrollable.
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.Assigning the left value to `toc`
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[source]
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----
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include::toc-left.adoc[]
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----
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.Result: Assigning the left value to `toc`
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====
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image::toc-left.png[Table of contents using left value]
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====
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This positioning is achieved using CSS, which means it depends on support from the stylesheet.
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However, it's only honored if there's sufficient room on the screen for a sidebar column.
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If there isn't sufficient room available (i.e., the screen width falls below a certain breakpoint), the TOC will automatically shift back to the center, appearing directly below the document title.
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IMPORTANT: The TOC is always placed in the center in an embeddable HTML document, regardless of the value of the `toc` attribute.
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// end::column[]
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=== In-Document Placement
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// tag::place[]
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`toc` values of `auto` (the default), `preamble`, and `macro` place the TOC in the main document area.
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When the value of `toc` attribute is unspecified or `auto`, the TOC is inserted directly below the document header (document title, author and revision lines).
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When `toc` is set to `preamble`, the TOC is placed immediately below the preamble.
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CAUTION: When using the preamble placement, the TOC will not appear if your document does not have a <<Preamble,preamble>>.
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To fix this problem, just set the `toc` attribute to an empty value (or `auto`).
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To place the TOC anywhere else in the document, set the `toc` attribute to `macro`.
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Then, put the block toc macro (`toc::[]`) at the location in the document where you want the TOC to appear.
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The toc macro should appear at most once in any document.
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If `toc` is not set to `macro`, any toc macro in the document will be silently ignored.
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.Setting toc value to macro and using the block toc macro
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[source]
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----
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include::toc-macro.adoc[]
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----
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<1> The toc attribute must be set to `macro` in order to enable the use of the toc macro.
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<2> In this example, the toc macro is placed below the first section's title, indicating that this is the location where the TOC will be displayed once the document is rendered.
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.Result: Setting toc value to macro and using the block toc macro
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====
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image::toc-macro.png[Manual placement of the table of contents]
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====
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// end::place[]
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