From 26b41ce7ba2944f312a54b555baeba2351c1c025 Mon Sep 17 00:00:00 2001
From: fiddlosopher <fiddlosopher@788f1e2b-df1e-0410-8736-df70ead52e1b>
Date: Tue, 16 Mar 2010 06:45:52 +0000
Subject: Shared: Export uniqueIdent, don't allow tilde in identifier.

git-svn-id: https://pandoc.googlecode.com/svn/trunk@1894 788f1e2b-df1e-0410-8736-df70ead52e1b
---
 src/Text/Pandoc/Shared.hs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'src/Text/Pandoc')

diff --git a/src/Text/Pandoc/Shared.hs b/src/Text/Pandoc/Shared.hs
index 14086c20f..a27a2c907 100644
--- a/src/Text/Pandoc/Shared.hs
+++ b/src/Text/Pandoc/Shared.hs
@@ -97,6 +97,7 @@ module Text.Pandoc.Shared (
                      compactify,
                      Element (..),
                      hierarchicalize,
+                     uniqueIdent,
                      isHeaderBlock,
                      -- * Writer options
                      HTMLMathMethod (..),
@@ -902,7 +903,7 @@ inlineListToIdentifier' [] = ""
 inlineListToIdentifier' (x:xs) =
   xAsText ++ inlineListToIdentifier' xs
   where xAsText = case x of
-          Str s          -> filter (\c -> c `elem` "_-.~" || not (isPunctuation c)) $
+          Str s          -> filter (\c -> c `elem` "_-." || not (isPunctuation c)) $
                             intercalate "-" $ words $ map toLower s
           Emph lst       -> inlineListToIdentifier' lst
           Strikeout lst  -> inlineListToIdentifier' lst
@@ -952,6 +953,8 @@ headerLtEq :: Int -> Block -> Bool
 headerLtEq level (Header l _) = l <= level
 headerLtEq _ _ = False
 
+-- | Generate a unique identifier from a list of inlines.
+-- Second argument is a list of already used identifiers.
 uniqueIdent :: [Inline] -> [String] -> String
 uniqueIdent title' usedIdents =
   let baseIdent = inlineListToIdentifier title'
-- 
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