1 files changed, 41 insertions, 0 deletions
diff --git a/common/src/Common/Util/Text.hs b/common/src/Common/Util/Text.hs
new file mode 100644
index 0000000..4af7a4c
--- /dev/null
+++ b/common/src/Common/Util/Text.hs
@@ -0,0 +1,41 @@
+module Common.Util.Text
+  ( unaccent
+  ) where
+
+import Data.Text (Text)
+import qualified Data.Text as T
+
+unaccent :: Text -> Text
+unaccent = T.map unaccentChar
+
+unaccentChar :: Char -> Char
+unaccentChar c = case c of
+  'à' -> 'a'
+  'á' -> 'a'
+  'â' -> 'a'
+  'ã' -> 'a'
+  'ä' -> 'a'
+  'ç' -> 'c'
+  'è' -> 'e'
+  'é' -> 'e'
+  'ê' -> 'e'
+  'ë' -> 'e'
+  'ì' -> 'i'
+  'í' -> 'i'
+  'î' -> 'i'
+  'ï' -> 'i'
+  'ñ' -> 'n'
+  'ò' -> 'o'
+  'ó' -> 'o'
+  'ô' -> 'o'
+  'õ' -> 'o'
+  'ö' -> 'o'
+  'š' -> 's'
+  'ù' -> 'u'
+  'ú' -> 'u'
+  'û' -> 'u'
+  'ü' -> 'u'
+  'ý' -> 'y'
+  'ÿ' -> 'y'
+  'ž' -> 'z'
+  _ -> c