From 33c6309c43734f112e1bda2a960d3263fd3dfa40 Mon Sep 17 00:00:00 2001
From: aarne <unknown>
Date: Fri, 14 Nov 2003 12:37:54 +0000
Subject: Harald's new codings.

---
 src/GF/Text/Hiragana.hs | 81 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 81 insertions(+)
 create mode 100644 src/GF/Text/Hiragana.hs

(limited to 'src/GF/Text/Hiragana.hs')

diff --git a/src/GF/Text/Hiragana.hs b/src/GF/Text/Hiragana.hs
new file mode 100644
index 000000000..76ef0938e
--- /dev/null
+++ b/src/GF/Text/Hiragana.hs
@@ -0,0 +1,81 @@
+module Hiragana where
+
+-- long vowel romaaji must be ei, ou not ee, oo  
+
+mkJapanese :: String -> String
+mkJapanese = digraphWordToUnicode . romaajiToDigraphWord
+
+romaajiToDigraphWord :: String -> [(Char, Char)]
+romaajiToDigraphWord str = case str of
+  [] -> []
+  '<' : cs -> ('\\', '<') : spoolMarkup cs 
+  ' ' : cs -> ('\\', ' ') : romaajiToDigraphWord cs
+  
+  c1 : cs | isVowel c1 -> (' ', cap c1) : romaajiToDigraphWord cs
+
+  -- The combinations
+  c1 : 'y' : c2 : cs -> (c1, 'i') : ('y', cap c2) : romaajiToDigraphWord cs 
+
+  's' : 'h' : 'a' : cs -> ('S', 'i') : ('y', 'A') : romaajiToDigraphWord cs
+  'c' : 'h' : 'a' : cs -> ('C', 'i') : ('y', 'A') : romaajiToDigraphWord cs
+  'j' : 'a' : cs -> ('j', 'i') : ('y', 'A') : romaajiToDigraphWord cs
+
+  's' : 'h' : 'u' : cs -> ('S', 'i') : ('y', 'U') : romaajiToDigraphWord cs
+  'c' : 'h' : 'u' : cs -> ('C', 'i') : ('y', 'U') : romaajiToDigraphWord cs
+  'j' : 'u' : cs -> ('j', 'i') : ('y', 'U') : romaajiToDigraphWord cs
+
+  's' : 'h' : 'o' : cs -> ('S', 'i') : ('y', 'O') : romaajiToDigraphWord cs
+  'c' : 'h' : 'o' : cs -> ('C', 'i') : ('y', 'O') : romaajiToDigraphWord cs
+  'j' : 'o' : cs -> ('j', 'i') : ('y', 'O') : romaajiToDigraphWord cs
+
+  'd' : 'z' : c3 : cs -> ('D', c3) : romaajiToDigraphWord cs
+  't' : 's' : c3 : cs -> ('T', c3) : romaajiToDigraphWord cs
+  'c' : 'h' : c3 : cs -> ('C', c3) : romaajiToDigraphWord cs
+  's' : 'h' : c3 : cs -> ('S', c3) : romaajiToDigraphWord cs
+  'z' : 'h' : c3 : cs -> ('Z', c3) : romaajiToDigraphWord cs
+
+  c1 : ' ' : cs -> (' ', c1) : ('\\', ' ') : romaajiToDigraphWord cs -- n
+  c1 : [] -> [(' ', c1)] -- n
+   
+  c1 : c2 : cs | isVowel c2 -> (c1, c2) : romaajiToDigraphWord cs
+  c1 : c2 : cs | c1 == c2 -> ('T', 'U') : romaajiToDigraphWord (c2 : cs) -- double cons
+  c1 : cs -> (' ', c1) : romaajiToDigraphWord cs -- n
+  
+isVowel x = elem x "aeiou"
+cap :: Char -> Char
+cap x = case x of 
+  'a' -> 'A'
+  'e' -> 'E'
+  'i' -> 'I'
+  'o' -> 'O'
+  'u' -> 'U'
+  c   -> c 
+
+spoolMarkup :: String -> [(Char, Char)]
+spoolMarkup s = case s of
+  -- [] -> [] -- Shouldn't happen
+  '>' : cs -> ('\\', '>') : romaajiToDigraphWord cs  
+  c1 : cs -> ('\\', c1) : spoolMarkup cs
+
+digraphWordToUnicode :: [(Char, Char)] -> String
+digraphWordToUnicode = map digraphToUnicode
+
+digraphToUnicode :: (Char, Char) -> Char
+digraphToUnicode (c1, c2) = case lookup (c1, c2) cc of Just c' -> c' ; _ -> c2 
+ where 
+   cc = zip allHiraganaCodes allHiragana
+
+allHiraganaCodes :: [(Char, Char)]
+allHiraganaCodes = mkPairs digraphedHiragana
+
+allHiragana :: String
+allHiragana = (map toEnum [0x3041 .. 0x309f]) 
+
+mkPairs :: String -> [(Char, Char)]
+mkPairs str = case str of
+  [] -> []
+  c1 : c2 : cs -> (c1, c2) : mkPairs cs
+
+digraphedHiragana = " a A i I u U e E o OkagakigikugukegekogosazaSiZisuzusezesozotadaCijiTUTuDutedetodonaninunenohabapahibipihubupuhebepehobopomamimumemoyAyayUyuyOyorarirurerowaWawiwewo nvukAkE____<< o>>o  >'> b"
+
+
-- 
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