From 73498534cfdccab95e580f8d6b121655d00e7578 Mon Sep 17 00:00:00 2001
From: Mirek Kratochvil <exa.exa@gmail.com>
Date: Sat, 27 May 2023 20:20:43 +0200
Subject: fork mustache

---
 mustache/src/Text/Mustache/Internal.hs | 41 ++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 mustache/src/Text/Mustache/Internal.hs

(limited to 'mustache/src/Text/Mustache/Internal.hs')

diff --git a/mustache/src/Text/Mustache/Internal.hs b/mustache/src/Text/Mustache/Internal.hs
new file mode 100644
index 0000000..c1bf8b7
--- /dev/null
+++ b/mustache/src/Text/Mustache/Internal.hs
@@ -0,0 +1,41 @@
+{-|
+Module      : $Header$
+Description : Types and conversions
+Copyright   : (c) Justus Adam, 2015
+License     : BSD3
+Maintainer  : dev@justus.science
+Stability   : experimental
+Portability : POSIX
+
+escapeXML and xmlEntities curtesy to the tagsoup library.
+-}
+module Text.Mustache.Internal (uncons, escapeXMLText) where
+
+
+import           Data.Char   (ord)
+import qualified Data.IntMap as IntMap
+import qualified Data.Text   as T
+
+
+uncons :: [α] -> Maybe (α, [α])
+uncons []     = Nothing
+uncons (x:xs) = return (x, xs)
+
+
+escapeXMLText :: T.Text -> T.Text
+escapeXMLText = T.pack . escapeXML . T.unpack
+
+
+escapeXML :: String -> String
+escapeXML = concatMap $ \x -> IntMap.findWithDefault [x] (ord x) mp
+    where mp = IntMap.fromList [(ord b, "&"++a++";") | (a,[b]) <- xmlEntities]
+
+
+xmlEntities :: [(String, String)]
+xmlEntities =
+  [ ("quot", "\"")
+  , ("#39", "'")
+  , ("amp" , "&")
+  , ("lt"  , "<")
+  , ("gt"  , ">")
+  ]
-- 
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