From 43486f8575199cb43b4626d3bee20e826853bc03 Mon Sep 17 00:00:00 2001 From: Waylan Limberg Date: Mon, 15 Jun 2009 21:48:55 -0400 Subject: Moved perl's MarkdownTest test files into new testing framework. One 2004 test and 23 2007 tests are failing so I set them to be skipped for now. We'll have to explore those failures later. A few may be issues with normalization, but most appear to be edgecases with markdown. --- .../Markdown Documentation - Syntax.html | 942 --------------------- 1 file changed, 942 deletions(-) delete mode 100644 MarkdownTest/Tests_2004/Markdown Documentation - Syntax.html (limited to 'MarkdownTest/Tests_2004/Markdown Documentation - Syntax.html') diff --git a/MarkdownTest/Tests_2004/Markdown Documentation - Syntax.html b/MarkdownTest/Tests_2004/Markdown Documentation - Syntax.html deleted file mode 100644 index 5c01306..0000000 --- a/MarkdownTest/Tests_2004/Markdown Documentation - Syntax.html +++ /dev/null @@ -1,942 +0,0 @@ -

Markdown: Syntax

- - - - - -

Note: This document is itself written using Markdown; you -can see the source for it by adding '.text' to the URL.

- -
- -

Overview

- -

Philosophy

- -

Markdown is intended to be as easy-to-read and easy-to-write as is feasible.

- -

Readability, however, is emphasized above all else. A Markdown-formatted -document should be publishable as-is, as plain text, without looking -like it's been marked up with tags or formatting instructions. While -Markdown's syntax has been influenced by several existing text-to-HTML -filters -- including Setext, atx, Textile, reStructuredText, -Grutatext, and EtText -- the single biggest source of -inspiration for Markdown's syntax is the format of plain text email.

- -

To this end, Markdown's syntax is comprised entirely of punctuation -characters, which punctuation characters have been carefully chosen so -as to look like what they mean. E.g., asterisks around a word actually -look like *emphasis*. Markdown lists look like, well, lists. Even -blockquotes look like quoted passages of text, assuming you've ever -used email.

- -

Inline HTML

- -

Markdown's syntax is intended for one purpose: to be used as a -format for writing for the web.

- -

Markdown is not a replacement for HTML, or even close to it. Its -syntax is very small, corresponding only to a very small subset of -HTML tags. The idea is not to create a syntax that makes it easier -to insert HTML tags. In my opinion, HTML tags are already easy to -insert. The idea for Markdown is to make it easy to read, write, and -edit prose. HTML is a publishing format; Markdown is a writing -format. Thus, Markdown's formatting syntax only addresses issues that -can be conveyed in plain text.

- -

For any markup that is not covered by Markdown's syntax, you simply -use HTML itself. There's no need to preface it or delimit it to -indicate that you're switching from Markdown to HTML; you just use -the tags.

- -

The only restrictions are that block-level HTML elements -- e.g. <div>, -<table>, <pre>, <p>, etc. -- must be separated from surrounding -content by blank lines, and the start and end tags of the block should -not be indented with tabs or spaces. Markdown is smart enough not -to add extra (unwanted) <p> tags around HTML block-level tags.

- -

For example, to add an HTML table to a Markdown article:

- -
This is a regular paragraph.
-
-<table>
-    <tr>
-        <td>Foo</td>
-    </tr>
-</table>
-
-This is another regular paragraph.
-
- -

Note that Markdown formatting syntax is not processed within block-level -HTML tags. E.g., you can't use Markdown-style *emphasis* inside an -HTML block.

- -

Span-level HTML tags -- e.g. <span>, <cite>, or <del> -- can be -used anywhere in a Markdown paragraph, list item, or header. If you -want, you can even use HTML tags instead of Markdown formatting; e.g. if -you'd prefer to use HTML <a> or <img> tags instead of Markdown's -link or image syntax, go right ahead.

- -

Unlike block-level HTML tags, Markdown syntax is processed within -span-level tags.

- -

Automatic Escaping for Special Characters

- -

In HTML, there are two characters that demand special treatment: < -and &. Left angle brackets are used to start tags; ampersands are -used to denote HTML entities. If you want to use them as literal -characters, you must escape them as entities, e.g. &lt;, and -&amp;.

- -

Ampersands in particular are bedeviling for web writers. If you want to -write about 'AT&T', you need to write 'AT&amp;T'. You even need to -escape ampersands within URLs. Thus, if you want to link to:

- -
http://images.google.com/images?num=30&q=larry+bird
-
- -

you need to encode the URL as:

- -
http://images.google.com/images?num=30&amp;q=larry+bird
-
- -

in your anchor tag href attribute. Needless to say, this is easy to -forget, and is probably the single most common source of HTML validation -errors in otherwise well-marked-up web sites.

- -

Markdown allows you to use these characters naturally, taking care of -all the necessary escaping for you. If you use an ampersand as part of -an HTML entity, it remains unchanged; otherwise it will be translated -into &amp;.

- -

So, if you want to include a copyright symbol in your article, you can write:

- -
&copy;
-
- -

and Markdown will leave it alone. But if you write:

- -
AT&T
-
- -

Markdown will translate it to:

- -
AT&amp;T
-
- -

Similarly, because Markdown supports inline HTML, if you use -angle brackets as delimiters for HTML tags, Markdown will treat them as -such. But if you write:

- -
4 < 5
-
- -

Markdown will translate it to:

- -
4 &lt; 5
-
- -

However, inside Markdown code spans and blocks, angle brackets and -ampersands are always encoded automatically. This makes it easy to use -Markdown to write about HTML code. (As opposed to raw HTML, which is a -terrible format for writing about HTML syntax, because every single < -and & in your example code needs to be escaped.)

- -
- -

Block Elements

- -

Paragraphs and Line Breaks

- -

A paragraph is simply one or more consecutive lines of text, separated -by one or more blank lines. (A blank line is any line that looks like a -blank line -- a line containing nothing but spaces or tabs is considered -blank.) Normal paragraphs should not be intended with spaces or tabs.

- -

The implication of the "one or more consecutive lines of text" rule is -that Markdown supports "hard-wrapped" text paragraphs. This differs -significantly from most other text-to-HTML formatters (including Movable -Type's "Convert Line Breaks" option) which translate every line break -character in a paragraph into a <br /> tag.

- -

When you do want to insert a <br /> break tag using Markdown, you -end a line with two or more spaces, then type return.

- -

Yes, this takes a tad more effort to create a <br />, but a simplistic -"every line break is a <br />" rule wouldn't work for Markdown. -Markdown's email-style blockquoting and multi-paragraph list items -work best -- and look better -- when you format them with hard breaks.

- - - -

Markdown supports two styles of headers, Setext and atx.

- -

Setext-style headers are "underlined" using equal signs (for first-level -headers) and dashes (for second-level headers). For example:

- -
This is an H1
-=============
-
-This is an H2
--------------
-
- -

Any number of underlining ='s or -'s will work.

- -

Atx-style headers use 1-6 hash characters at the start of the line, -corresponding to header levels 1-6. For example:

- -
# This is an H1
-
-## This is an H2
-
-###### This is an H6
-
- -

Optionally, you may "close" atx-style headers. This is purely -cosmetic -- you can use this if you think it looks better. The -closing hashes don't even need to match the number of hashes -used to open the header. (The number of opening hashes -determines the header level.) :

- -
# This is an H1 #
-
-## This is an H2 ##
-
-### This is an H3 ######
-
- -

Blockquotes

- -

Markdown uses email-style > characters for blockquoting. If you're -familiar with quoting passages of text in an email message, then you -know how to create a blockquote in Markdown. It looks best if you hard -wrap the text and put a > before every line:

- -
> This is a blockquote with two paragraphs. Lorem ipsum dolor sit amet,
-> consectetuer adipiscing elit. Aliquam hendrerit mi posuere lectus.
-> Vestibulum enim wisi, viverra nec, fringilla in, laoreet vitae, risus.
-> 
-> Donec sit amet nisl. Aliquam semper ipsum sit amet velit. Suspendisse
-> id sem consectetuer libero luctus adipiscing.
-
- -

Markdown allows you to be lazy and only put the > before the first -line of a hard-wrapped paragraph:

- -
> This is a blockquote with two paragraphs. Lorem ipsum dolor sit amet,
-consectetuer adipiscing elit. Aliquam hendrerit mi posuere lectus.
-Vestibulum enim wisi, viverra nec, fringilla in, laoreet vitae, risus.
-
-> Donec sit amet nisl. Aliquam semper ipsum sit amet velit. Suspendisse
-id sem consectetuer libero luctus adipiscing.
-
- -

Blockquotes can be nested (i.e. a blockquote-in-a-blockquote) by -adding additional levels of >:

- -
> This is the first level of quoting.
->
-> > This is nested blockquote.
->
-> Back to the first level.
-
- -

Blockquotes can contain other Markdown elements, including headers, lists, -and code blocks:

- -
> ## This is a header.
-> 
-> 1.   This is the first list item.
-> 2.   This is the second list item.
-> 
-> Here's some example code:
-> 
->     return shell_exec("echo $input | $markdown_script");
-
- -

Any decent text editor should make email-style quoting easy. For -example, with BBEdit, you can make a selection and choose Increase -Quote Level from the Text menu.

- -

Lists

- -

Markdown supports ordered (numbered) and unordered (bulleted) lists.

- -

Unordered lists use asterisks, pluses, and hyphens -- interchangably --- as list markers:

- -
*   Red
-*   Green
-*   Blue
-
- -

is equivalent to:

- -
+   Red
-+   Green
-+   Blue
-
- -

and:

- -
-   Red
--   Green
--   Blue
-
- -

Ordered lists use numbers followed by periods:

- -
1.  Bird
-2.  McHale
-3.  Parish
-
- -

It's important to note that the actual numbers you use to mark the -list have no effect on the HTML output Markdown produces. The HTML -Markdown produces from the above list is:

- -
<ol>
-<li>Bird</li>
-<li>McHale</li>
-<li>Parish</li>
-</ol>
-
- -

If you instead wrote the list in Markdown like this:

- -
1.  Bird
-1.  McHale
-1.  Parish
-
- -

or even:

- -
3. Bird
-1. McHale
-8. Parish
-
- -

you'd get the exact same HTML output. The point is, if you want to, -you can use ordinal numbers in your ordered Markdown lists, so that -the numbers in your source match the numbers in your published HTML. -But if you want to be lazy, you don't have to.

- -

If you do use lazy list numbering, however, you should still start the -list with the number 1. At some point in the future, Markdown may support -starting ordered lists at an arbitrary number.

- -

List markers typically start at the left margin, but may be indented by -up to three spaces. List markers must be followed by one or more spaces -or a tab.

- -

To make lists look nice, you can wrap items with hanging indents:

- -
*   Lorem ipsum dolor sit amet, consectetuer adipiscing elit.
-    Aliquam hendrerit mi posuere lectus. Vestibulum enim wisi,
-    viverra nec, fringilla in, laoreet vitae, risus.
-*   Donec sit amet nisl. Aliquam semper ipsum sit amet velit.
-    Suspendisse id sem consectetuer libero luctus adipiscing.
-
- -

But if you want to be lazy, you don't have to:

- -
*   Lorem ipsum dolor sit amet, consectetuer adipiscing elit.
-Aliquam hendrerit mi posuere lectus. Vestibulum enim wisi,
-viverra nec, fringilla in, laoreet vitae, risus.
-*   Donec sit amet nisl. Aliquam semper ipsum sit amet velit.
-Suspendisse id sem consectetuer libero luctus adipiscing.
-
- -

If list items are separated by blank lines, Markdown will wrap the -items in <p> tags in the HTML output. For example, this input:

- -
*   Bird
-*   Magic
-
- -

will turn into:

- -
<ul>
-<li>Bird</li>
-<li>Magic</li>
-</ul>
-
- -

But this:

- -
*   Bird
-
-*   Magic
-
- -

will turn into:

- -
<ul>
-<li><p>Bird</p></li>
-<li><p>Magic</p></li>
-</ul>
-
- -

List items may consist of multiple paragraphs. Each subsequent -paragraph in a list item must be intended by either 4 spaces -or one tab:

- -
1.  This is a list item with two paragraphs. Lorem ipsum dolor
-    sit amet, consectetuer adipiscing elit. Aliquam hendrerit
-    mi posuere lectus.
-
-    Vestibulum enim wisi, viverra nec, fringilla in, laoreet
-    vitae, risus. Donec sit amet nisl. Aliquam semper ipsum
-    sit amet velit.
-
-2.  Suspendisse id sem consectetuer libero luctus adipiscing.
-
- -

It looks nice if you indent every line of the subsequent -paragraphs, but here again, Markdown will allow you to be -lazy:

- -
*   This is a list item with two paragraphs.
-
-    This is the second paragraph in the list item. You're
-only required to indent the first line. Lorem ipsum dolor
-sit amet, consectetuer adipiscing elit.
-
-*   Another item in the same list.
-
- -

To put a blockquote within a list item, the blockquote's > -delimiters need to be indented:

- -
*   A list item with a blockquote:
-
-    > This is a blockquote
-    > inside a list item.
-
- -

To put a code block within a list item, the code block needs -to be indented twice -- 8 spaces or two tabs:

- -
*   A list item with a code block:
-
-        <code goes here>
-
- -

It's worth noting that it's possible to trigger an ordered list by -accident, by writing something like this:

- -
1986. What a great season.
-
- -

In other words, a number-period-space sequence at the beginning of a -line. To avoid this, you can backslash-escape the period:

- -
1986\. What a great season.
-
- -

Code Blocks

- -

Pre-formatted code blocks are used for writing about programming or -markup source code. Rather than forming normal paragraphs, the lines -of a code block are interpreted literally. Markdown wraps a code block -in both <pre> and <code> tags.

- -

To produce a code block in Markdown, simply indent every line of the -block by at least 4 spaces or 1 tab. For example, given this input:

- -
This is a normal paragraph:
-
-    This is a code block.
-
- -

Markdown will generate:

- -
<p>This is a normal paragraph:</p>
-
-<pre><code>This is a code block.
-</code></pre>
-
- -

One level of indentation -- 4 spaces or 1 tab -- is removed from each -line of the code block. For example, this:

- -
Here is an example of AppleScript:
-
-    tell application "Foo"
-        beep
-    end tell
-
- -

will turn into:

- -
<p>Here is an example of AppleScript:</p>
-
-<pre><code>tell application "Foo"
-    beep
-end tell
-</code></pre>
-
- -

A code block continues until it reaches a line that is not indented -(or the end of the article).

- -

Within a code block, ampersands (&) and angle brackets (< and >) -are automatically converted into HTML entities. This makes it very -easy to include example HTML source code using Markdown -- just paste -it and indent it, and Markdown will handle the hassle of encoding the -ampersands and angle brackets. For example, this:

- -
    <div class="footer">
-        &copy; 2004 Foo Corporation
-    </div>
-
- -

will turn into:

- -
<pre><code>&lt;div class="footer"&gt;
-    &amp;copy; 2004 Foo Corporation
-&lt;/div&gt;
-</code></pre>
-
- -

Regular Markdown syntax is not processed within code blocks. E.g., -asterisks are just literal asterisks within a code block. This means -it's also easy to use Markdown to write about Markdown's own syntax.

- -

Horizontal Rules

- -

You can produce a horizontal rule tag (<hr />) by placing three or -more hyphens, asterisks, or underscores on a line by themselves. If you -wish, you may use spaces between the hyphens or asterisks. Each of the -following lines will produce a horizontal rule:

- -
* * *
-
-***
-
-*****
-
-- - -
-
----------------------------------------
-
-_ _ _
-
- -
- -

Span Elements

- - - -

Markdown supports two style of links: inline and reference.

- -

In both styles, the link text is delimited by [square brackets].

- -

To create an inline link, use a set of regular parentheses immediately -after the link text's closing square bracket. Inside the parentheses, -put the URL where you want the link to point, along with an optional -title for the link, surrounded in quotes. For example:

- -
This is [an example](http://example.com/ "Title") inline link.
-
-[This link](http://example.net/) has no title attribute.
-
- -

Will produce:

- -
<p>This is <a href="http://example.com/" title="Title">
-an example</a> inline link.</p>
-
-<p><a href="http://example.net/">This link</a> has no
-title attribute.</p>
-
- -

If you're referring to a local resource on the same server, you can -use relative paths:

- -
See my [About](/about/) page for details.
-
- -

Reference-style links use a second set of square brackets, inside -which you place a label of your choosing to identify the link:

- -
This is [an example][id] reference-style link.
-
- -

You can optionally use a space to separate the sets of brackets:

- -
This is [an example] [id] reference-style link.
-
- -

Then, anywhere in the document, you define your link label like this, -on a line by itself:

- -
[id]: http://example.com/  "Optional Title Here"
-
- -

That is:

- - - -

The link URL may, optionally, be surrounded by angle brackets:

- -
[id]: <http://example.com/>  "Optional Title Here"
-
- -

You can put the title attribute on the next line and use extra spaces -or tabs for padding, which tends to look better with longer URLs:

- -
[id]: http://example.com/longish/path/to/resource/here
-    "Optional Title Here"
-
- -

Link definitions are only used for creating links during Markdown -processing, and are stripped from your document in the HTML output.

- -

Link definition names may constist of letters, numbers, spaces, and punctuation -- but they are not case sensitive. E.g. these two links:

- -
[link text][a]
-[link text][A]
-
- -

are equivalent.

- -

The implicit link name shortcut allows you to omit the name of the -link, in which case the link text itself is used as the name. -Just use an empty set of square brackets -- e.g., to link the word -"Google" to the google.com web site, you could simply write:

- -
[Google][]
-
- -

And then define the link:

- -
[Google]: http://google.com/
-
- -

Because link names may contain spaces, this shortcut even works for -multiple words in the link text:

- -
Visit [Daring Fireball][] for more information.
-
- -

And then define the link:

- -
[Daring Fireball]: http://daringfireball.net/
-
- -

Link definitions can be placed anywhere in your Markdown document. I -tend to put them immediately after each paragraph in which they're -used, but if you want, you can put them all at the end of your -document, sort of like footnotes.

- -

Here's an example of reference links in action:

- -
I get 10 times more traffic from [Google] [1] than from
-[Yahoo] [2] or [MSN] [3].
-
-  [1]: http://google.com/        "Google"
-  [2]: http://search.yahoo.com/  "Yahoo Search"
-  [3]: http://search.msn.com/    "MSN Search"
-
- -

Using the implicit link name shortcut, you could instead write:

- -
I get 10 times more traffic from [Google][] than from
-[Yahoo][] or [MSN][].
-
-  [google]: http://google.com/        "Google"
-  [yahoo]:  http://search.yahoo.com/  "Yahoo Search"
-  [msn]:    http://search.msn.com/    "MSN Search"
-
- -

Both of the above examples will produce the following HTML output:

- -
<p>I get 10 times more traffic from <a href="http://google.com/"
-title="Google">Google</a> than from
-<a href="http://search.yahoo.com/" title="Yahoo Search">Yahoo</a>
-or <a href="http://search.msn.com/" title="MSN Search">MSN</a>.</p>
-
- -

For comparison, here is the same paragraph written using -Markdown's inline link style:

- -
I get 10 times more traffic from [Google](http://google.com/ "Google")
-than from [Yahoo](http://search.yahoo.com/ "Yahoo Search") or
-[MSN](http://search.msn.com/ "MSN Search").
-
- -

The point of reference-style links is not that they're easier to -write. The point is that with reference-style links, your document -source is vastly more readable. Compare the above examples: using -reference-style links, the paragraph itself is only 81 characters -long; with inline-style links, it's 176 characters; and as raw HTML, -it's 234 characters. In the raw HTML, there's more markup than there -is text.

- -

With Markdown's reference-style links, a source document much more -closely resembles the final output, as rendered in a browser. By -allowing you to move the markup-related metadata out of the paragraph, -you can add links without interrupting the narrative flow of your -prose.

- -

Emphasis

- -

Markdown treats asterisks (*) and underscores (_) as indicators of -emphasis. Text wrapped with one * or _ will be wrapped with an -HTML <em> tag; double *'s or _'s will be wrapped with an HTML -<strong> tag. E.g., this input:

- -
*single asterisks*
-
-_single underscores_
-
-**double asterisks**
-
-__double underscores__
-
- -

will produce:

- -
<em>single asterisks</em>
-
-<em>single underscores</em>
-
-<strong>double asterisks</strong>
-
-<strong>double underscores</strong>
-
- -

You can use whichever style you prefer; the lone restriction is that -the same character must be used to open and close an emphasis span.

- -

Emphasis can be used in the middle of a word:

- -
un*fucking*believable
-
- -

But if you surround an * or _ with spaces, it'll be treated as a -literal asterisk or underscore.

- -

To produce a literal asterisk or underscore at a position where it -would otherwise be used as an emphasis delimiter, you can backslash -escape it:

- -
\*this text is surrounded by literal asterisks\*
-
- -

Code

- -

To indicate a span of code, wrap it with backtick quotes (`). -Unlike a pre-formatted code block, a code span indicates code within a -normal paragraph. For example:

- -
Use the `printf()` function.
-
- -

will produce:

- -
<p>Use the <code>printf()</code> function.</p>
-
- -

To include a literal backtick character within a code span, you can use -multiple backticks as the opening and closing delimiters:

- -
``There is a literal backtick (`) here.``
-
- -

which will produce this:

- -
<p><code>There is a literal backtick (`) here.</code></p>
-
- -

The backtick delimiters surrounding a code span may include spaces -- -one after the opening, one before the closing. This allows you to place -literal backtick characters at the beginning or end of a code span:

- -
A single backtick in a code span: `` ` ``
-
-A backtick-delimited string in a code span: `` `foo` ``
-
- -

will produce:

- -
<p>A single backtick in a code span: <code>`</code></p>
-
-<p>A backtick-delimited string in a code span: <code>`foo`</code></p>
-
- -

With a code span, ampersands and angle brackets are encoded as HTML -entities automatically, which makes it easy to include example HTML -tags. Markdown will turn this:

- -
Please don't use any `<blink>` tags.
-
- -

into:

- -
<p>Please don't use any <code>&lt;blink&gt;</code> tags.</p>
-
- -

You can write this:

- -
`&#8212;` is the decimal-encoded equivalent of `&mdash;`.
-
- -

to produce:

- -
<p><code>&amp;#8212;</code> is the decimal-encoded
-equivalent of <code>&amp;mdash;</code>.</p>
-
- -

Images

- -

Admittedly, it's fairly difficult to devise a "natural" syntax for -placing images into a plain text document format.

- -

Markdown uses an image syntax that is intended to resemble the syntax -for links, allowing for two styles: inline and reference.

- -

Inline image syntax looks like this:

- -
![Alt text](/path/to/img.jpg)
-
-![Alt text](/path/to/img.jpg "Optional title")
-
- -

That is:

- - - -

Reference-style image syntax looks like this:

- -
![Alt text][id]
-
- -

Where "id" is the name of a defined image reference. Image references -are defined using syntax identical to link references:

- -
[id]: url/to/image  "Optional title attribute"
-
- -

As of this writing, Markdown has no syntax for specifying the -dimensions of an image; if this is important to you, you can simply -use regular HTML <img> tags.

- -
- -

Miscellaneous

- - - -

Markdown supports a shortcut style for creating "automatic" links for URLs and email addresses: simply surround the URL or email address with angle brackets. What this means is that if you want to show the actual text of a URL or email address, and also have it be a clickable link, you can do this:

- -
<http://example.com/>
-
- -

Markdown will turn this into:

- -
<a href="http://example.com/">http://example.com/</a>
-
- -

Automatic links for email addresses work similarly, except that -Markdown will also perform a bit of randomized decimal and hex -entity-encoding to help obscure your address from address-harvesting -spambots. For example, Markdown will turn this:

- -
<address@example.com>
-
- -

into something like this:

- -
<a href="&#x6D;&#x61;i&#x6C;&#x74;&#x6F;:&#x61;&#x64;&#x64;&#x72;&#x65;
-&#115;&#115;&#64;&#101;&#120;&#x61;&#109;&#x70;&#x6C;e&#x2E;&#99;&#111;
-&#109;">&#x61;&#x64;&#x64;&#x72;&#x65;&#115;&#115;&#64;&#101;&#120;&#x61;
-&#109;&#x70;&#x6C;e&#x2E;&#99;&#111;&#109;</a>
-
- -

which will render in a browser as a clickable link to "address@example.com".

- -

(This sort of entity-encoding trick will indeed fool many, if not -most, address-harvesting bots, but it definitely won't fool all of -them. It's better than nothing, but an address published in this way -will probably eventually start receiving spam.)

- -

Backslash Escapes

- -

Markdown allows you to use backslash escapes to generate literal -characters which would otherwise have special meaning in Markdown's -formatting syntax. For example, if you wanted to surround a word with -literal asterisks (instead of an HTML <em> tag), you can backslashes -before the asterisks, like this:

- -
\*literal asterisks\*
-
- -

Markdown provides backslash escapes for the following characters:

- -
\   backslash
-`   backtick
-*   asterisk
-_   underscore
-{}  curly braces
-[]  square brackets
-()  parentheses
-#   hash mark
-+   plus sign
--   minus sign (hyphen)
-.   dot
-!   exclamation mark
-
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