From a2194f23dbc3251908a5cc20198a2b3fbad7b759 Mon Sep 17 00:00:00 2001
From: fiddlosopher <fiddlosopher@788f1e2b-df1e-0410-8736-df70ead52e1b>
Date: Sat, 21 Jul 2007 22:54:40 +0000
Subject: Added support for Strikeout, Superscript, and Subscript to HTML
 reader.  Thanks to Bradley Sif for the patch for Strikeout (Issue #18).

git-svn-id: https://pandoc.googlecode.com/svn/trunk@753 788f1e2b-df1e-0410-8736-df70ead52e1b
---
 src/Text/Pandoc/Readers/HTML.hs | 27 ++++++++++++++++++++++++++-
 1 file changed, 26 insertions(+), 1 deletion(-)

(limited to 'src/Text/Pandoc/Readers')

diff --git a/src/Text/Pandoc/Readers/HTML.hs b/src/Text/Pandoc/Readers/HTML.hs
index 824f615c0..c7832fbf0 100644
--- a/src/Text/Pandoc/Readers/HTML.hs
+++ b/src/Text/Pandoc/Readers/HTML.hs
@@ -384,7 +384,9 @@ plain = do
 
 inline = choice [ text, special ] <?> "inline"
 
-text =  choice [ entity, strong, emph, code, str, linebreak, whitespace ] <?> "text"
+text =  choice [ entity, strong, emph, superscript, subscript,
+                 strikeout, spanStrikeout, code, str,
+                 linebreak, whitespace ] <?> "text"
 
 special = choice [ link, image, rawHtmlInline ] <?> 
                  "link, inline html, or image"
@@ -416,6 +418,29 @@ emph = try (do
   result <- choice [betweenTags "em", betweenTags "it"]
   return (Emph result))
 
+superscript = try $ do
+  failIfStrict -- strict markdown has no superscript, so treat as raw HTML
+  result <- betweenTags "sup"
+  return (Superscript result)  
+
+subscript = try $ do
+  failIfStrict -- strict markdown has no subscript, so treat as raw HTML
+  result <- betweenTags "sub"
+  return (Subscript result)  
+
+strikeout = try $ do
+  failIfStrict -- strict markdown has no strikeout, so treat as raw HTML
+  result <- choice [betweenTags "s", betweenTags "strike"]
+  return (Strikeout result)
+
+spanStrikeout = try $ do
+  failIfStrict -- strict markdown has no strikeout, so treat as raw HTML
+  (tag, attributes) <- htmlTag "span" 
+  result <- case (extractAttribute "class" attributes) of
+              Just "strikeout" -> inlinesTilEnd "span"
+              Nothing          -> fail "not a strikeout"
+  return (Strikeout result)
+
 strong = try (do 
   result <- choice [betweenTags "b", betweenTags "strong"]
   return (Strong result))
-- 
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