202 lines
5.1 KiB
Plaintext
202 lines
5.1 KiB
Plaintext
# GitLab Markdown
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This document is intended to be a comprehensive example of custom GitLab
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Markdown usage. It will be parsed and then tested for accuracy. Let's get
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started.
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## Markdown
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GitLab uses [Redcarpet](http://git.io/ld_NVQ) to parse all Markdown into
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HTML.
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It has some special features. Let's try 'em out!
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### No Intra Emphasis
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This string should have no emphasis: foo_bar_baz
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### Tables
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| Header | Row | Example |
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| :------: | ---: | :------ |
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| Foo | Bar | **Baz** |
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### Fenced Code Blocks
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```c
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#include<stdio.h>
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main()
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{
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printf("Hello World");
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}
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```
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```python
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print "Hello, World!"
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```
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### Strikethrough
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This text says this, ~~and this text doesn't~~.
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### Superscript
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This is my 1^(st) time using superscript in Markdown. Now this is my
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2^(nd).
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### Next step
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After the Markdown has been turned into HTML, it gets passed through...
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## HTML::Pipeline
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### SanitizationFilter
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GitLab uses <a href="http://git.io/vfW8a">HTML::Pipeline::SanitizationFilter</a>
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to sanitize the generated HTML, stripping dangerous or unwanted tags.
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Its default whitelist is pretty permissive. Check it:
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<b>b tag</b> and <em>em tag</em>.
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<code>code tag</code>
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Press <kbd>s</kbd> to search.
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<strike>Emoji</strike> Plain old images! <img src="http://www.emoji-cheat-sheet.com/graphics/emojis/smile.png" width="20" height="20" />
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Here comes a line break:
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<br />
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And a horizontal rule:
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<hr />
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As permissive as it is, we've allowed even more stuff:
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<span>span tag</span>
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<a href="#" rel="bookmark">This is a link with a defined rel attribute, which should be removed</a>
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<a href="javascript:alert('Hi')">This is a link trying to be sneaky. It gets its link removed entirely.</a>
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### Escaping
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The problem with SanitizationFilter is that it can be too aggressive.
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| Input | Expected | Actual |
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| ----------- | ---------------- | --------- |
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| `1 < 3 & 5` | 1 < 3 & 5 | 1 < 3 & 5 |
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| `<foo>` | <foo> | <foo> |
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### Edge Cases
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Markdown should be usable inside a link. Let's try!
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- [_text_](#link-emphasis)
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- [**text**](#link-strong)
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- [`text`](#link-code)
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### EmojiFilter
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Because life would be :zzz: without Emoji, right? :rocket:
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Get ready for the Emoji :bomb:: :+1::-1::ok_hand::wave::v::raised_hand::muscle:
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### TableOfContentsFilter
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All headers in this document should be linkable. Try it.
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### AutolinkFilter
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These are all plain text that should get turned into links:
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- http://about.gitlab.com/
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- https://google.com/
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- ftp://ftp.us.debian.org/debian/
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- smb://foo/bar/baz
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- irc://irc.freenode.net/git
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- http://localhost:3000
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But it shouldn't autolink text inside certain tags:
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- <code>http://about.gitlab.com/</code>
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- <a>http://about.gitlab.com/</a>
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- <kbd>http://about.gitlab.com/</kbd>
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### ExternalLinkFilter
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External links get a `rel="nofollow"` attribute:
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- [Google](https://google.com/)
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- [GitLab Root](<%= Gitlab.config.gitlab.url %>)
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### Reference Filters (e.g., <%= issue.to_reference %>)
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References should be parseable even inside _<%= merge_request.to_reference %>_ emphasis.
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#### UserReferenceFilter
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- All: @all
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- User: <%= user.to_reference %>
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- Group: <%= group.to_reference %>
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- Ignores invalid: <%= User.reference_prefix %>fake_user
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- Ignored in code: `<%= user.to_reference %>`
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- Ignored in links: [Link to <%= user.to_reference %>](#user-link)
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#### IssueReferenceFilter
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- Issue: <%= issue.to_reference %>
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- Issue in another project: <%= xissue.to_reference(project) %>
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- Ignored in code: `<%= issue.to_reference %>`
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- Ignored in links: [Link to <%= issue.to_reference %>](#issue-link)
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#### MergeRequestReferenceFilter
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- Merge request: <%= merge_request.to_reference %>
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- Merge request in another project: <%= xmerge_request.to_reference(project) %>
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- Ignored in code: `<%= merge_request.to_reference %>`
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- Ignored in links: [Link to <%= merge_request.to_reference %>](#merge-request-link)
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#### SnippetReferenceFilter
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- Snippet: <%= snippet.to_reference %>
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- Snippet in another project: <%= xsnippet.to_reference(project) %>
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- Ignored in code: `<%= snippet.to_reference %>`
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- Ignored in links: [Link to <%= snippet.to_reference %>](#snippet-link)
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#### CommitRangeReferenceFilter
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- Range: <%= commit_range.to_reference %>
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- Range in another project: <%= xcommit_range.to_reference(project) %>
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- Ignored in code: `<%= commit_range.to_reference %>`
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- Ignored in links: [Link to <%= commit_range.to_reference %>](#commit-range-link)
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#### CommitReferenceFilter
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- Commit: <%= commit.to_reference %>
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- Commit in another project: <%= xcommit.to_reference(project) %>
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- Ignored in code: `<%= commit.to_reference %>`
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- Ignored in links: [Link to <%= commit.to_reference %>](#commit-link)
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#### LabelReferenceFilter
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- Label by ID: <%= simple_label.to_reference %>
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- Label by name: <%= Label.reference_prefix %><%= simple_label.name %>
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- Label by name in quotes: <%= label.to_reference(:name) %>
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- Ignored in code: `<%= simple_label.to_reference %>`
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- Ignored in links: [Link to <%= simple_label.to_reference %>](#label-link)
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### Task Lists
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- [ ] Incomplete task 1
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- [x] Complete task 1
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- [ ] Incomplete task 2
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- [ ] Incomplete sub-task 1
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- [ ] Incomplete sub-task 2
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- [x] Complete sub-task 1
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- [X] Complete task 2
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