# Markdown Overview #
## Paragraphs ##
> Paragraphs are divided by blank lines.
> End a line with two or more spaces to force a mid-paragraph line break.
## Headings ##
>
# Top Level Heading Alternative Top Level Heading
# Top Level Heading Variant # =============================
>
## 2nd Level Heading Alternative 2nd Level Heading
## 2nd Level Heading Variant ## -----------------------------
>
### 3rd Level Heading ### 3rd Level Heading Variant ###
#### 4th Level Heading #### 4th Level Heading Variant ####
##### 5th Level Heading ##### 5th Level Heading Variant #####
###### 6th Level Heading ###### 6th Level Heading Variant ######
## Links ##
> 1. **\[display text\]\(URL\)**
> 2. **\[display text\]\(URL "Title"\)**
> 3. **\[display text\]\(URL 'Title'\)**
> 4. **\<URL\>**
> 5. **\[display text\]\[label\]**
> 6. **\[display text\]\[\]**
> 7. **\[display text\]**
> 8. **\[\]\(URL\)**
> With link formats 5, 6, and 7 ("reference links"), the URL is supplied
> elsewhere in the document, as shown below. Link formats 6 and 7 reuse
> the display text as the label. Labels are case-insensitive. The title
> may be split onto the next line with optional indenting.
> * **\[label\]: URL**
> * **\[label\]: URL "Title"**
> * **\[label\]: URL 'Title'**
> * **\[label\]: URL (Title)**
> If **URL** begins with "http:", "https:', "ftp:' or "mailto:",
> it may optionally be written **\<URL\>** (format 4).
> Other **URL** formats include:
> <ul>
> <li> A relative pathname.
> <li> A pathname starting with "/" in which case the Fossil server
> URL prefix is prepended
> <li> A wiki page name, or a wiki page name preceded by "wiki:"
> <li> An artifact or ticket hash or hash prefix
> <li> A date and time stamp: "YYYY-MM-DD HH:MM:SS" or a subset that
> includes at least the day of the month.
> <li> An [interwiki link](#intermap) of the form "<i>Tag</i><b>:</b><i>PageName</i>"</ul>
> In format 8, then the URL becomes the display text. This is useful for
> hyperlinks that refer to wiki pages and check-in and ticket hashes.
## Text Style ##
> * _\*italic\*_
> * *\_italic\_*
> * __\*\*bold\*\*__
> * **\_\_bold\_\_**
> * ___\*\*\*italic+bold\*\*\*___
> * ***\_\_\_italic+bold\_\_\_***
> * \``code`\`
> The **\`code\`** construct disables HTML markup, so one can write, for
> example, **\`\<html\>\`** to yield **`<html>`**.
## Lists ##
> ~~~
* bullet item
+ bullet item
- bullet item
1. numbered item
2) numbered item
~~~
> A two-level list is created by placing additional whitespace before the
> **\***/**+**/**-**/**1.** of the secondary items.
> ~~~
* top-level item
* second-level item
~~~
## Block Quotes ##
> Begin each line of a paragraph with **>** to block quote that paragraph.
> >
> This paragraph is indented
> >
> > Double-indented paragraph
## Literal/Verbatim Text - Code Blocks ##
> For inline text, you can either use \``backticks`\` or the HTML
> `<code>` tag.
>
> For blocks of text or code:
>
> 1. Indent the text using a tab character or at least four spaces.
> 2. Precede the block with an HTML `<pre>` tag and follow it with `</pre>`.
> 3. Surround the block by <tt>\`\`\`</tt> (three or more) or <tt>\~\~\~</tt> either at the
> left margin or indented no more than three spaces. The first word
> on that same line (if any) is used in a “`language-WORD`” CSS style in
> the HTML rendering of that code block and is intended for use by
> code syntax highlighters. Thus <tt>\`\`\`c</tt> would mark a block of code
> in the C programming language. Text to be rendered inside the code block
> should therefore start on the next line, not be cuddled up with the
> backticks or tildes. See the "Diagrams" section below for the case where
> "`language-WORD`" is "pikchr".
> With the standard skins, verbatim text is rendered in a fixed-width font,
> but that is purely a presentation matter, controlled by the skin’s CSS.
## Tables ##
>
| Header 1 | Header 2 | Header 3 |
----------------------------------------------
| Row 1 Col 1 | Row 1 Col 2 | Row 1 Col 3 |
|:Left-aligned |:Centered :| Right-aligned:|
| | ← Blank → | |
| Row 4 Col 1 | Row 4 Col 2 | Row 4 Col 3 |
> The first row is a header if followed by a horizontal rule or a blank line.
> Placing **:** at the left, both, or right sides of a cell gives left-aligned,
> centered, or right-aligned text, respectively. By default, both header and
> body cells are left-aligned.
> The leftmost or rightmost **\|** is required only if the first or last column,
> respectively, contains at least one blank cell.
## Diagrams ##
>
~~~~~
~~~ pikchr
oval "Start" fit; arrow; box "Hello, World!" fit; arrow; oval "Done" fit
~~~
~~~~~
> Formatted using [Pikchr](https://pikchr.org/home), resulting in:
>
~~~ pikchr
oval "Start" fit; arrow; box "Hello, World!" fit; arrow; oval "Done" fit
~~~
<a id="ftnts"></a>
## Footnotes ##
> Footnotes (or "endnotes") is a Fossil extension of classical Markdown.
> Fossil's syntax for footnotes is similar to links and
> is distinguished by the use of character **^**
> that *immediately* follows an opening bracket.
> 1. **\(^** footnote's text **)**
> 2. **\[** fragment of text **]\(^** a comment about that fragment **\)**
> 3. **\[^** label **\]**
> 4. **\[** fragment of text **\]\[^** label **\]**
> 5. **\[** fragment of text **\]\[^\]**
> With formats 1 and 2 ("inline footnotes") text of a footnote is provided
> in the place where the corresponding numeric mark will be rendered.
> With formats 3, 4, and 5 ("reference footnotes") text of a footnote
> is supplied elsewhere in the document, as shown below.
> Formats 2, 4 and 5 ("span-specific footnotes") mark a specific fragment
> that is being commented in the footnote.
> Format 5 reuses a fragment of text as a label.
> Labels are case-insensitive.
> ```
> [^label]: Footnote definition must start on the first column.
> The second line (if any) must be indented by two or more spaces.
> Definition continues until indentation drops below that of the 2nd line.
>```
> Character **^** is not part of a label, it is part of the syntax.
> Both a footnote's text and a fragment to which a footnote applies
> are subject to further interpretation as Markdown sources.
## Miscellaneous ##
> * In-line images are made using **\!\[alt-text\]\(image-URL\)**.
> * Use HTML for advanced formatting such as forms, noting that certain
> tags are [disallowed in some contexts](/help?cmd=safe-html).
> * **\<!--** HTML-style comments **-->** are supported.
> * Escape special characters (ex: **\[** **\(** **\|** **\***)
> using backslash (ex: **\\\[** **\\\(** **\\\|** **\\\***).
> * A line consisting of **---**, **\*\*\***, or **\_\_\_** is a horizontal
> rule. Spaces and extra **-**/**\***/**_** are allowed.
> * Paragraphs enclosed in **\<html\>...\</html\>** is passed through unchanged.
> * See [daringfireball.net][] for additional information.
> * See this page's [Markdown source](/md_rules?txt=1) for more examples.
## Special Features For Fossil ##
> * In hyperlinks, if the URL begins with **/** then the root of the Fossil
> repository is prepended. This allows for repository-relative hyperlinks.
> * For documents that begin with a top-level heading (ex: **# heading #**),
> the heading is omitted from the body of the document and becomes the
> document title displayed at the top of the Fossil page.
[daringfireball.net]: http://daringfireball.net/projects/markdown/syntax
<a name="intermap"></a>
## Interwiki Tag [Map](/intermap)