AsciiDoc
GitLab uses the Asciidoctor gem to convert AsciiDoc content to HTML5. Consult the Asciidoctor User Manual for a complete Asciidoctor reference.
Syntax
Here's a brief reference of the most commonly used AsciiDoc syntax. You can find the full documentation for the AsciiDoc syntax at https://asciidoctor.org/docs/.
Paragraphs
A normal paragraph.
Line breaks are not preserved.Line comments, which are lines that start with //, are skipped:
// this is a commentA blank line separates paragraphs.
A paragraph with the [%hardbreaks] option will preserve line breaks:
[%hardbreaks]
This paragraph carries the `hardbreaks` option.
Notice how line breaks are now preserved.An indented (literal) paragraph disables text formatting, preserves spaces and line breaks, and is displayed in a monospaced font:
This literal paragraph is indented with one space.
As a consequence, *text formatting*, spaces,
and lines breaks will be preserved.An admonition paragraph grabs the reader's attention:
NOTE: This is a brief reference, please read the full documentation at https://asciidoctor.org/docs/.
TIP: Lists can be indented. Leading whitespace is not significant.Text Formatting
Constrained (applied at word boundaries)
*strong importance* (aka bold)
_stress emphasis_ (aka italic)
`monospaced` (aka typewriter text)
"`double`" and '`single`' typographic quotes
+passthrough text+ (substitutions disabled)
`+literal text+` (monospaced with substitutions disabled)Unconstrained (applied anywhere)
**C**reate+**R**ead+**U**pdate+**D**elete
fan__freakin__tastic
``mono``cultureReplacements
A long time ago in a galaxy far, far away...
(C) 1976 Arty Artisan
I believe I shall--no, actually I won't.Macros
// where c=specialchars, q=quotes, a=attributes, r=replacements, m=macros, p=post_replacements, etc.
The European icon:flag[role=blue] is blue & contains pass:[************] arranged in a icon:circle-o[role=yellow].
The pass:c[->] operator is often referred to as the stabby lambda.
Since `pass:[++]` has strong priority in AsciiDoc, you can rewrite pass:c,a,r[C++ => C{pp}].
// activate stem support by adding `:stem:` to the document header
stem:[sqrt(4) = 2]Attributes
// define attributes in the document header
:name: value:url-gem: https://rubygems.org/gems/asciidoctor
You can download and install Asciidoctor {asciidoctor-version} from {url-gem}.
C{pp} is not required, only Ruby.
Use a leading backslash to output a word enclosed in curly braces, like \{name}.Links
https://example.org/page[A webpage]
link:../path/to/file.txt[A local file]
xref:document.adoc[A sibling document]
mailto:hello@example.org[Email to say hello!]Anchors
[[idname,reference text]]
// or written using normal block attributes as `[#idname,reftext=reference text]`
A paragraph (or any block) with an anchor (aka ID) and reftext.
See <<idname>> or <<idname,optional text of internal link>>.
xref:document.adoc#idname[Jumps to anchor in another document].
This paragraph has a footnote.footnote:[This is the text of the footnote.]Lists
Unordered
* level 1
** level 2
*** level 3
**** level 4
***** etc.
* back at level 1
+
Attach a block or paragraph to a list item using a list continuation (which you can enclose in an open block).
.Some Authors
[circle]
- Edgar Allen Poe
- Sheri S. Tepper
- Bill BrysonOrdered
. Step 1
. Step 2
.. Step 2a
.. Step 2b
. Step 3
.Remember your Roman numerals?
[upperroman]
. is one
. is two
. is threeChecklist
* [x] checked
* [ ] not checkedCallout
// enable callout bubbles by adding `:icons: font` to the document header
[,ruby]
----
puts 'Hello, World!' # <1>
----
<1> Prints `Hello, World!` to the console.Description
first term:: description of first term
second term::
description of second termDocument Structure
Header
= Document Title
Author Name <author@example.org>
v1.0, 2019-01-01Sections
= Document Title (Level 0)
== Level 1
=== Level 2
==== Level 3
===== Level 4
====== Level 5
== Back at Level 1Includes
include::basics.adoc[]
// define -a allow-uri-read to allow content to be read from URI
include::https://example.org/installation.adoc[]Blocks
--
open - a general-purpose content wrapper; useful for enclosing content to attach to a list item
--// recognized types include CAUTION, IMPORTANT, NOTE, TIP, and WARNING
// enable admonition icons by setting `:icons: font` in the document header
[NOTE]
====
admonition - a notice for the reader, ranging in severity from a tip to an alert
========
example - a demonstration of the concept being documented
====.Toggle Me
[%collapsible]
====
collapsible - these details are revealed by clicking the title
====****
sidebar - auxiliary content that can be read independently of the main content
****....
literal - an exhibit that features program output
....----
listing - an exhibit that features program input, source code, or the contents of a file
----[,language]
----
source - a listing that is embellished with (colorized) syntax highlighting
----\```language
fenced code - a shorthand syntax for the source block
\```[,attribution,citetitle]
____
quote - a quotation or excerpt; attribution with title of source are optional
____[verse,attribution,citetitle]
____
verse - a literary excerpt, often a poem; attribution with title of source are optional
____++++
pass - content passed directly to the output document; often raw HTML
++++// activate stem support by adding `:stem:` to the document header
[stem]
++++
x = y^2
++++////
comment - content which is not included in the output document
////Tables
.Table Attributes
[cols=>1h;2d,width=50%,frame=topbot]
|===
| Attribute Name | Values
| options
| header,footer,autowidth
| cols
| colspec[;colspec;...]
| grid
| all \| cols \| rows \| none
| frame
| all \| sides \| topbot \| none
| stripes
| all \| even \| odd \| none
| width
| (0%..100%)
| format
| psv {vbar} csv {vbar} dsv
|===Multimedia
image::screenshot.png[block image,800,450]
Press image:reload.svg[reload,16,opts=interactive] to reload the page.
video::movie.mp4[width=640,start=60,end=140,options=autoplay]
video::aHjpOzsQ9YI[youtube]
video::300817511[vimeo]Breaks
// thematic break (aka horizontal rule)
---// page break
<<<