Added an asciidoc writer (partial).

Still TODO:

- documentation in README
- add default.asciidoc to templates/
- lists
- tables
- proper escaping
- footnotes with blank lines - print separately at end?
  currently they are just ignored.
- fix header (date gives weird result on pandoc README)

1 files changed, 754 insertions, 0 deletions

diff --git a/tests/writer.asciidoc b/tests/writer.asciidoc
new file mode 100644
index 000000000..60a9518a7
--- /dev/null
+++ b/tests/writer.asciidoc
@@ -0,0 +1,754 @@
+Pandoc Test Suite
+=================
+John MacFarlane; Anonymous
+July 17, 2006
+
+This is a set of tests for pandoc. Most of them are adapted from John Gruber's
+markdown test suite.
+
+'''''
+
+Headers
+-------
+
+Level 2 with an link:/url[embedded link]
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Level 3 with *emphasis*
+^^^^^^^^^^^^^^^^^^^^^^^
+
+Level 4
++++++++
+
+Level 5
+
+Level 1
+-------
+
+Level 2 with _emphasis_
+~~~~~~~~~~~~~~~~~~~~~~~
+
+Level 3
+^^^^^^^
+
+with no blank line
+
+Level 2
+-------
+
+with no blank line
+
+'''''
+
+Paragraphs
+----------
+
+Here’s a regular paragraph.
+
+In Markdown 1.0.0 and earlier. Version 8. This line turns into a list item.
+Because a hard-wrapped line in the middle of a paragraph looked like a list
+item.
+
+Here’s one with a bullet. \* criminey.
+
+There should be a hard line break +
+here.
+
+'''''
+
+Block Quotes
+------------
+
+E-mail style:
+
+__________________________________________
+This is a block quote. It is pretty short.
+__________________________________________
+
+------------------------
+Code in a block quote:
+
+    sub status {
+        print "working";
+    }
+------------------------
+
+A list:
+
+. item one
+. item two
+
+Nested block quotes:
+
+______
+nested
+______
+nested
+______
+______
+
+This should not be a block quote: 2 \> 1.
+
+And a following paragraph.
+
+'''''
+
+Code Blocks
+-----------
+
+Code:
+
+----
+---- (should be four hyphens)
+
+sub status {
+    print "working";
+}
+
+this code block is indented by one tab
+----
+
+And:
+
+----
+    this code block is indented by two tabs
+
+These should not be escaped:  \$ \\ \> \[ \{
+----
+
+'''''
+
+Lists
+-----
+
+Unordered
+~~~~~~~~~
+
+Asterisks tight:
+
+[options="compact"]
+* asterisk 1
+* asterisk 2
+* asterisk 3
+
+Asterisks loose:
+
+* asterisk 1
+
+* asterisk 2
+
+* asterisk 3
+
+Pluses tight:
+
+[options="compact"]
+* Plus 1
+* Plus 2
+* Plus 3
+
+Pluses loose:
+
+* Plus 1
+
+* Plus 2
+
+* Plus 3
+
+Minuses tight:
+
+[options="compact"]
+* Minus 1
+* Minus 2
+* Minus 3
+
+Minuses loose:
+
+* Minus 1
+
+* Minus 2
+
+* Minus 3
+
+Ordered
+~~~~~~~
+
+Tight:
+
+[options="compact"]
+1. First
+2. Second
+3. Third
+
+and:
+
+[options="compact"]
+1. One
+2. Two
+3. Three
+
+Loose using tabs:
+
+1. First
+
+2. Second
+
+3. Third
+
+and using spaces:
+
+1. One
+
+2. Two
+
+3. Three
+
+Multiple paragraphs:
+
+1. Item 1, graf one.
++
+Item 1. graf two. The quick brown fox jumped over the lazy dog’s back.
+
+2. Item 2.
+
+3. Item 3.
+
+Nested
+~~~~~~
+
+* Tab
+** Tab
+*** Tab
+
+Here’s another:
+
+1. First
+2. Second:
+   [options="compact"]
+   * Fee
+   * Fie
+   * Foe
+
+3. Third
+
+Same thing but with paragraphs:
+
+1. First
+
+2. Second:
+
+    [options="compact"]
+    * Fee
+    * Fie
+    * Foe
+
+3.  Third
+
+Tabs and spaces
+~~~~~~~~~~~~~~~
+
+* this is a list item indented with tabs
+
+* this is a list item indented with spaces
+
+** this is an example list item indented with tabs
+
+** this is an example list item indented with spaces
+
+Fancy list markers
+~~~~~~~~~~~~~~~~~~
+
+[start=2]
+2. begins with 2
+3. and now 3
++
+with a continuation
++
+[start=4]
+4. sublist with roman numerals, starting with 4
+5. more items
+   A. a subsublist
+   B. a subsublist
+
+Nesting:
+
+A. Upper Alpha
+    1. Upper Roman.
+    +
+    [start=6]
+    6. Decimal start with 6
+    +
+    [start=3]
+    c. Lower alpha with paren
+
+Autonumbering:
+
+1. Autonumber.
+2. More.
+   1. Nested.
+
+Should not be a list item:
+
+M.A. 2007
+
+B. Williams
+
+'''''
+
+Definition Lists
+----------------
+
+Tight using spaces:
+
+apple
+  ~ red fruit
+orange
+  ~ orange fruit
+banana
+  ~ yellow fruit
+
+Tight using tabs:
+
+apple
+  ~ red fruit
+orange
+  ~ orange fruit
+banana
+  ~ yellow fruit
+
+Loose:
+
+apple
+  ~ red fruit
+
+orange
+  ~ orange fruit
+
+banana
+  ~ yellow fruit
+
+Multiple blocks with italics:
+
+*apple*
+  ~ red fruit
+
+    contains seeds, crisp, pleasant to taste
+
+*orange*
+  ~ orange fruit
+
+        { orange code block }
+
+    > orange block quote
+
+Multiple definitions, tight:
+
+apple
+  ~ red fruit
+  ~ computer
+orange
+  ~ orange fruit
+  ~ bank
+
+Multiple definitions, loose:
+
+apple
+  ~ red fruit
+
+  ~ computer
+
+orange
+  ~ orange fruit
+
+  ~ bank
+
+Blank line after term, indented marker, alternate markers:
+
+apple
+  ~ red fruit
+
+  ~ computer
+
+orange
+  ~ orange fruit
+
+    1.  sublist
+    2.  sublist
+
+HTML Blocks
+-----------
+
+Simple block on one line:
+
+<div>
+foo
+</div>
+
+And nested without indentation:
+
+<div>
+<div>
+<div>
+foo
+</div>
+</div>
+<div>
+bar
+</div>
+</div>
+
+Interpreted markdown in a table:
+
+<table>
+<tr>
+<td>
+This is *emphasized*
+</td>
+<td>
+And this is **strong**
+</td>
+</tr>
+</table>
+
+<script type="text/javascript">document.write('This *should not* be interpreted as markdown');</script>
+
+Here’s a simple block:
+
+<div>
+    
+foo
+</div>
+
+This should be a code block, though:
+
+    <div>
+        foo
+    </div>
+
+As should this:
+
+    <div>foo</div>
+
+Now, nested:
+
+<div>
+    <div>
+        <div>
+            
+foo
+</div>
+    </div>
+</div>
+
+This should just be an HTML comment:
+
+<!-- Comment -->
+
+Multiline:
+
+<!--
+Blah
+Blah
+-->
+
+<!--
+    This is another comment.
+-->
+
+Code block:
+
+    <!-- Comment -->
+
+Just plain comment, with trailing spaces on the line:
+
+<!-- foo -->   
+
+Code:
+
+    <hr />
+
+Hr’s:
+
+<hr>
+
+<hr />
+
+<hr />
+
+<hr>   
+
+<hr />  
+
+<hr /> 
+
+<hr class="foo" id="bar" />
+
+<hr class="foo" id="bar" />
+
+<hr class="foo" id="bar">
+
+'''''
+
+Inline Markup
+-------------
+
+This is *emphasized*, and so *is this*.
+
+This is **strong**, and so **is this**.
+
+An *[emphasized link](/url)*.
+
+***This is strong and em.***
+
+So is ***this*** word.
+
+***This is strong and em.***
+
+So is ***this*** word.
+
+This is code: `>`, `$`, `\`, `\$`, `<html>`.
+
+~~This is *strikeout*.~~
+
+Superscripts: a^bc^d a^*hello*^ a^hello there^.
+
+Subscripts: H~2~O, H~23~O, H~many of them~O.
+
+These should not be superscripts or subscripts, because of the unescaped
+spaces: a\^b c\^d, a\~b c\~d.
+
+'''''
+
+Smart quotes, ellipses, dashes
+------------------------------
+
+“Hello,” said the spider. “‘Shelob’ is my name.”
+
+‘A’, ‘B’, and ‘C’ are letters.
+
+‘Oak,’ ‘elm,’ and ‘beech’ are names of trees. So is ‘pine.’
+
+‘He said, “I want to go.”’ Were you alive in the 70’s?
+
+Here is some quoted ‘`code`’ and a “[quoted
+link](http://example.com/?foo=1&bar=2)”.
+
+Some dashes: one—two — three—four — five.
+
+Dashes between numbers: 5–7, 255–66, 1987–1999.
+
+Ellipses…and…and….
+
+'''''
+
+LaTeX
+-----
+
+-   \cite[22-23]{smith.1899}
+-   $2+2=4$
+-   $x \in y$
+-   $\alpha \wedge \omega$
+-   $223$
+-   $p$-Tree
+-   Here’s some display math:
+    $$\frac{d}{dx}f(x)=\lim_{h\to 0}\frac{f(x+h)-f(x)}{h}$$
+-   Here’s one that has a line break in it: $\alpha + \omega \times x^2$.
+
+These shouldn’t be math:
+
+-   To get the famous equation, write `$e = mc^2$`.
+-   $22,000 is a *lot* of money. So is $34,000. (It worked if “lot” is
+    emphasized.)
+-   Shoes ($20) and socks ($5).
+-   Escaped `$`: $73 *this should be emphasized* 23$.
+
+Here’s a LaTeX table:
+
+\begin{tabular}{|l|l|}\hline
+Animal & Number \\ \hline
+Dog    & 2      \\
+Cat    & 1      \\ \hline
+\end{tabular}
+
+'''''
+
+Special Characters
+------------------
+
+Here is some unicode:
+
+-   I hat: Î
+-   o umlaut: ö
+-   section: §
+-   set membership: ∈
+-   copyright: ©
+
+AT&T has an ampersand in their name.
+
+AT&T is another way to write it.
+
+This & that.
+
+4 < 5.
+
+6 \> 5.
+
+Backslash: \\
+
+Backtick: \`
+
+Asterisk: \*
+
+Underscore: \_
+
+Left brace: {
+
+Right brace: }
+
+Left bracket: [
+
+Right bracket: ]
+
+Left paren: (
+
+Right paren: )
+
+Greater-than: \>
+
+Hash: \#
+
+Period: .
+
+Bang: !
+
+Plus: +
+
+Minus: -
+
+'''''
+
+Links
+-----
+
+Explicit
+~~~~~~~~
+
+Just a [URL](/url/).
+
+[URL and title](/url/ "title").
+
+[URL and title](/url/ "title preceded by two spaces").
+
+[URL and title](/url/ "title preceded by a tab").
+
+[URL and title](/url/ "title with "quotes" in it")
+
+[URL and title](/url/ "title with single quotes")
+
+[with\_underscore](/url/with_underscore)
+
+[Email link](mailto:nobody@nowhere.net)
+
+[Empty]().
+
+Reference
+~~~~~~~~~
+
+Foo [bar](/url/).
+
+Foo [bar](/url/).
+
+Foo [bar](/url/).
+
+With [embedded [brackets]](/url/).
+
+[b](/url/) by itself should be a link.
+
+Indented [once](/url).
+
+Indented [twice](/url).
+
+Indented [thrice](/url).
+
+This should [not][] be a link.
+
+    [not]: /url
+
+Foo [bar](/url/ "Title with "quotes" inside").
+
+Foo [biz](/url/ "Title with "quote" inside").
+
+With ampersands
+~~~~~~~~~~~~~~~
+
+Here’s a [link with an ampersand in the URL](http://example.com/?foo=1&bar=2).
+
+Here’s a link with an amersand in the link text:
+[AT&T](http://att.com/ "AT&T").
+
+Here’s an [inline link](/script?foo=1&bar=2).
+
+Here’s an [inline link in pointy braces](/script?foo=1&bar=2).
+
+Autolinks
+~~~~~~~~~
+
+With an ampersand: <http://example.com/?foo=1&bar=2>
+
+-   In a list?
+-   <http://example.com/>
+-   It should.
+
+An e-mail address: <nobody@nowhere.net>
+
+> Blockquoted: <http://example.com/>
+
+Auto-links should not occur here: `<http://example.com/>`
+
+    or here: <http://example.com/>
+
+'''''
+
+Images
+------
+
+From “Voyage dans la Lune” by Georges Melies (1902):
+
+![lalune](lalune.jpg "Voyage dans la Lune")
+
+Here is a movie ![movie](movie.jpg) icon.
+
+'''''
+
+Footnotes
+---------
+
+Here is a footnote reference,[^1] and another.[^2] This should *not* be a
+footnote reference, because it contains a space.[\^my note] Here is an inline
+note.[^3]
+
+> Notes can go in quotes.[^4]
+
+1.  And in list items.[^5]
+
+This paragraph should not be part of the note, as it is not indented.
+
+[^1]: Here is the footnote. It can go anywhere after the footnote reference.
+    It need not be placed at the end of the document.
+
+[^2]: Here’s the long note. This one contains multiple blocks.
+
+    Subsequent blocks are indented to show that they belong to the footnote
+    (as with list items).
+
+          { <code> }
+
+    If you want, you can indent every line, but you can also be lazy and just
+    indent the first line of each block.
+
+[^3]: This is *easier* to type. Inline notes may contain
+    [links](http://google.com) and `]` verbatim characters, as well as
+    [bracketed text].
+
+[^4]: In quote.
+
+[^5]: In list.