Creole reader (#4002)

* Basic skeleton for creole reader.

No real functionality besides preliminary bold and italics yet.

* Creole: add support for bold/italic with implicit end at paragraph end.

* Creole: add support for headings.

* Creole: add support for tilde escaped chars.

* Basic skeleton for creole reader.

No real functionality besides preliminary bold and italics yet.

* Creole: add support for bold/italic with implicit end at paragraph end.

* Creole: add support for headings.

* Creole: add support for tilde escaped chars.

* Add a test suite for the creole parser

So far this covers only things the parser already supports.

* Added simple parsing of flat unordered lists.

* Added tests for unordered lists in creole.

* First, wrong(!) implementation of sublists.

Fails test, as sublists should not be embedded in a list item!

* Implementation of unordered sublists.

* Added support for ordered lists to creole reader.

* Added utility function to append parsers to Creole reader.

* Creole reader: Fixed list item end detection in sub lists.

* Tests for creole reader: added more tests for lists.

Covering ordered and unordered tests, even mixed.  Tests for
formatting in list items still missing...

* Added "nowiki" blocks.  One exception rule is missing...

* Creole reader: nowiki: implemented exception for curly brackets.

* Creole reader: added inline nowiki.

* Creole reader: added horizontalRule.

* Creole reader: added auto linking of URIs.

* Creole reader: detect horizontalRule as para end.

Used the opportunity for a little refactoring.

* Creole reader: added forced line breaks.

Including test.

* Creole reader: implement wiki links.

* Creole reader: added image support.

* Creole reader: support images as links.

* Creole reader: implemented placeholder -- by simply dropping them.

* Creole reader: added tests for links.

After observing a regression, it was really time...  ;-)

* Creole reader: fixed links with names.

* Creole reader: allow space after first of enclosing tags.

Space after the start of formatting tags are allowed with creole,
e.g. "there is // italic text // in here" is legal.

This problem was discovered using the creole1.0test.txt document from
http://www.wikicreole.org/wiki/Creole1.0TestCases

See l.57:
# // italic item 3 //

* Creole reader: fixed links without names.

* Creole reader: Tests, sorted into groups.

* Creole reader: implemented tables.

* Removed redundant import.

* Creole reader: add correct escaping of links.

* Creole reader: allow handling of e.g. links in parenthesis and quotes.

* Creole reader: Modified disclaimer as most of the code is actually by me.

* Creole reader: Tests: added escaped links.

* Creole reader: preserve leading and trailing space in bold/italic.

* Creole reader: detect tables without a leading blank line.

* Creole Reader: added official creole1.0test.txt as "old" test.

The base document was downloaded from
http://www.wikicreole.org/wiki/Creole1.0TestCases.
The Wiki, and therefore the test document is

Copyright (C) by the contributors.
Some rights reserved, license CC BY-SA.

http://creativecommons.org/licenses/by-sa/1.0/

1 files changed, 4 insertions, 0 deletions

diff --git a/test/Tests/Old.hs b/test/Tests/Old.hs
index 27bb20b4b..9c6b9f660 100644
--- a/test/Tests/Old.hs
+++ b/test/Tests/Old.hs
@@ -156,6 +156,10 @@ tests = [ testGroup "markdown"
         , testGroup "ms"
           [ testGroup "writer" $ writerTests "ms"
           ]
+        , testGroup "creole"
+          [ test "reader" ["-r", "creole", "-w", "native", "-s"]
+            "creole-reader.txt" "creole-reader.native"
+          ]
         ]
 
 -- makes sure file is fully closed after reading