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[% INCLUDE global/header.html.tmpl
  title = "Markdown Syntax Guide"
  bodyclasses = ['narrow_page']
 %]

<h2>What is Markdown?</h2>

  Markdown is a simple text formatting language that enables you to write your
  [%+ terms.comments %] in plain-text and have them generated as HTML. Markdown
  in [%+ terms.Bugzilla %] supports the following structures:

  <ul>
    <li><a href="#headers">Headers</a></li>
    <li><a href="#blockquotes">Blockquotes</a></li>
    <li><a href="#emphasis">Emphasis</a></li>
    <li><a href="#lists">Lists</a></li>
    <li><a href="#code">Code</a></li>
    <li><a href="#strikethroughs">Strikethroughs</a></li>
    <li><a href="#links">Links</a></li>
    <li><a href="#tables">Tables</a></li>
    <li><a href="#definitions">Definitions</a></li>
  </ul>

<h2 id="headers">Headers</h2>

  You have two options for making headers. First, you may use any number of
  equal signs (for first-level header) or dashes (for second-level headers).

  <p>
    <pre>
      <code>
        This is an H1 header
        ====================

        This is an H2 header
        --------------------
      </code>
    </pre>
  </p>

  Second, you can use hash signs at the beginning of the line to specify the
  level of the header from 1 to 6.

  <p>
    <pre>
      <code>
        # This is the largest header (H1 level)
        ### This is a small header (H3 level)
        ###### This is the smallest header (H6 level)
     </code>
   </pre>
  </p>

<h2 id="blockquotes">Blockquotes</h2>

  Use a closing angle bracket (<code>&gt;</code>) at the beginning of the line
  to indicate a line as quoted.

  <p>
    <pre>
      <code>
        &gt; Some text to be quoted.
      </code>
    </pre>
  </p>

<h2 id="emphasis">Emphasis</h2>

  Single underscores or asterisks will make the text italic. Double underscores
  or asterisks will make the text bold.

  <p>
    <pre>
      <code>
        _This text will become italic_
        *This text also will become italic*

        __But this one will be bold__
        **And this one as well**
      </code>
    </pre>
  </p>

  Turns into

  <p>
    <pre>
      <em>This text will become italic</em>
      <em>This text also will become italic</em>
      <br>
      <strong>But this one will be bold</strong>
      <strong>And this one as well</strong>
    </pre>
  </p>

  Use different signs to combine them nestedly in order to avoid ambiguity:

  <p>
    <pre>
      <code>
        _This [% terms.bug %] **must** be resolved ASAP._
      </code>
    </pre>
  </p>

  <strong>Note:</strong> [% terms.Bugzilla %] will skip emphasizing words that
  have the form of <code>multiple_underscore_in_a_word</code>. This measure is
  taken to not emphasize words that are possible programming variables. If your
  word has this form and you still want it to become emphasized/bold, you must
  use single/double asterisks (<code>*</code>) instead of underscores
  (<code>_</code>).

<h2 id="lists">Lists</h2>

  Markdown supports both unordered and ordered lists.

  <h3>Unordered Lists</h3>

    Use asterisks (<code>*</code>), pluses (<code>+</code>) or hyphens
    (<code>-</code>) to mark the items of an unordered list.

    <p>
      <pre>
        <code>
          + First item
          + Second item
          + Third item
        </code>
      </pre>
    </p>

  <h3>Ordered Lists</h3>

    Use a number followed by a period to denote an item of an ordered list.

    <p>
      <pre>
        <code>
          1. Item one
          4. Item two
          3. Item three
        </code>
      </pre>
    </p>

    <strong>Note:</strong> Your numbers have no effect on the rendered item
    numbers and the rendered numbers are automatically generated. Your numbers
    are only used to specify the items of an ordered list.<br>

    <p>
      A list item can have nested lists recursively:
    </p>

    <p>
      <pre>
        <code>
          1. Item one
          4. Item two
          3. Item three
            * First sub-item
            * Second sub-item
          5. Item four
        </code>
      </pre>
    </p>

<h2 id="code">Code</h2>

  To make a part of your text to get generated as a piece of code, use one or
  more backticks (<code>`</code>) and close that
  part with the same number of backticks.

  <p>
    <pre>
      <code>Please see the manual for `printf` function.</code>
    </pre>
  </p>

  If you want to make some lines of code, you need to use 3 or more backticks at
  the beginning of a line followed by your code lines and concluded by 3 or more
  backticks.

  <p>
    <pre>
      <code>
        See my function:
        ```
        int sum(int x, int y) {
          return x + y;
        }
        ```
      </code>
    </pre>
  </p>

  You can also use a tab or [% constants.MARKDOWN_TAB_WIDTH FILTER html %] or
  more spaces at the beginning of each line of your code to make the whole block
  look as a code block. Please take care that you might make your lines as code
  blocks by inadvertently indenting them.

<h2 id="strikethroughs">Strikethroughs</h2>

  Surround your text between a pair of two tildes to have your text crossed out.

  <p>
    <pre>
      <code>
        Module ~~Foo~~ is deprecated.
      </code>
    </pre>
  </p>

<h2 id="links">Links</h2>

  Literal URLs and Email addresses get linkified automatically. Besides that,
  you can define links with link texts and titles. You may define your links
  either as inline or as a reference. To define a link as inline, put your link
  text in square bracket immediately followed by a pair of parentheses which
  containts the URL that you want your link to point to and an <em>optional</em>
  link title surrounded by quotes.

  <p>
    <pre>
      <code>
        This is [Bugzilla](http://www.bugzilla.org "View Bugzilla Homepage")
        [% terms.bug %] tracking system.</code>
        This [example link](http://www.example.com) does not have title.
      </code>
    </pre>
  </p>

  To define your links in a reference style, define your links any where in
  your [% terms.comment %] with the following format:

  <p>
    <pre>
      <code>
        [bz]: http://www.bugzilla.org "Bugzilla Homepage"
        [mz]: http://www.mozilla.org (Mozilla Homepage)
      </code>
    </pre>
  </p>

  That is, define a unique ID for each link in square brackets with their
  corresponding URL and optional title in quotes or parentheses. Then, point to
  those links simply by writing your link text in square brackets followed by
  the ID in another pair of square brackets.

  <p>
    <pre>
      <code>
        [Bugzilla][bz] is open-sourced server software designed to help groups
        manage software development. [Mozilla][mz] uses [Bugzilla][bz] to track
        issues with Firefox and other projects.
      </code>
    </pre>
  </p>

<h2 id="tables">Tables</h2>

Tables can be defined using these special syntax:

<pre><code>
        |             |          Grouping           ||
        First Header  | Second Header | Third Header |
         ------------ | :-----------: | -----------: |
        Content       |          *Long Cell*        ||
        Content       |   **Cell**    |         Cell |

        New section   |     More      |         Data |
        And more      |     More      |     **Data** |
</code></pre>

<p>which gets converted into:</p>

<div class="bz_comment_text">
  <table style="margin-left: 5em">
    <colgroup>
      <col style="text-align:left;"/>
      <col style="text-align:center;"/>
      <col style="text-align:right;"/>
    </colgroup>

    <thead>
      <tr>
       <th style="text-align:left;"></th>
       <th style="text-align:center;" colspan="2">Grouping</th>
      </tr>
      <tr>
       <th style="text-align:left;">First Header</th>
       <th style="text-align:center;">Second Header</th>
       <th style="text-align:right;">Third Header</th>
      </tr>
    </thead>
    <tbody>
      <tr>
       <td style="text-align:left;">Content</td>
       <td style="text-align:center;" colspan="2"><em>Long Cell</em></td>
      </tr>
      <tr>
       <td style="text-align:left;">Content</td>
       <td style="text-align:center;"><strong>Cell</strong></td>
       <td style="text-align:right;">Cell</td>
      </tr>
    </tbody>
    <tbody>
      <tr>
       <td style="text-align:left;">New section</td>
       <td style="text-align:center;">More</td>
       <td style="text-align:right;">Data</td>
      </tr>
      <tr>
       <td style="text-align:left;">And more</td>
       <td style="text-align:center;">More</td>
       <td style="text-align:right;"><strong>Data</strong></td>
      </tr>
    </tbody>
  </table>
</div>

<p>The table rules are:</p>

<ul>
  <li>There must be at least one <code>|</code> per line</li>
  <li>The &#8220;separator&#8221; line between headers and table content must contain only <code>|</code>,<code>-</code>, <code>=</code>, <code>:</code>,<code>.</code>, <code>+</code>, or spaces</li>
  <li>Cell content must be on one line only</li>
  <li>Columns are separated by <code>|</code></li>
  <li>The first line of the table, and the alignment/divider line, must start at
    the beginning of the line</li>
</ul>

<p>Other notes:</p>

<ul>
  <li>It is optional whether you have <code>|</code> characters at the beginning and end of lines.</li>
  <li>The &#8220;separator&#8221; line uses <code>----</code> or <code>====</code> to indicate the line between a header and cell. The length of the line doesn&#8217;t matter, but must have at least one character per cell.</li>
  <li>To set alignment, you can use a colon to designate left or right alignment, or a colon at each end to designate center alignment, as above. If no colon is present, the default alignment of your system is selected (left in most cases). </li>
  <li>To indicate that a cell should span multiple columns, then simply add additional pipes (<code>|</code>) at the end of the cell, as shown in the example. If the cell in question is at the end of the row, then of course that means that pipes are not optional at the end of that row&#8230;. The number of pipes equals the number of columns the cell should span.</li>
  <li>You can use Markdown markup within the table cells.</li>
  <li>Cells can be empty.</li>
</ul>

<h2 id="definitions">Definition Lists</h2>

Definition lists uses this syntax:

<pre><code>
        Apple
        :   Pomaceous fruit of plants of the genus Malus in
            the family Rosaceae.
        :   An american computer company.

        Orange
        :   The fruit of an evergreen tree of the genus Citrus.
</code></pre>

<p>becomes:</p>

<div class="bz_comment_text">
  <dl style="margin-left: 5em">
    <dt>Apple</dt>
    <dd>Pomaceous fruit of plants of the genus Malus in
      the family Rosaceae.</dd>

    <dd>An american computer company.</dd>

    <dt>Orange</dt>
    <dd>The fruit of an evergreen tree of the genus Citrus.</dd>
  </dl>
</div>

<p>You can have more than one term per definition by placing each term on a
  separate line. Each definition starts with a colon, and you can have more than
  one definition per term. You may optionally have a blank line between the last
  term and the first definition.</p>

<p>Definitions may contain other block level elements, such as lists,
  blockquotes, or other definition lists.</p>

[% PROCESS global/footer.html.tmpl %]