lib: Added symbol.txt and file to generate codepoint to unicode mapping

1 files changed, 40 insertions, 0 deletions

diff --git a/lib/fonts/parseUnicodeMapping.hs b/lib/fonts/parseUnicodeMapping.hs
new file mode 100644
index 000000000..4f7ff692b
--- /dev/null
+++ b/lib/fonts/parseUnicodeMapping.hs
@@ -0,0 +1,40 @@
+import System.FilePath
+import Text.Parsec
+import Data.Char
+import System.Environment
+import Control.Applicative hiding (many)
+import Data.List
+
+main :: IO ()
+main = (head <$> getArgs) >>= parseUnicodeMapping
+
+
+parseUnicodeMapping :: FilePath -> IO ()
+parseUnicodeMapping fname = do
+  fin <- readFile fname
+  let mapname = dropExtension . takeFileName $ fname
+  let res = runParse fin
+  let header = "-- Generated from " ++ fname ++ "\n" ++
+                mapname ++ " :: [(Char, Char)]\n" ++ mapname ++" =\n  [ "
+  let footer = "]"
+  writeFile (replaceExtension fname ".hs")
+    (header ++ (concat $ intersperse "\n  , " (map show res)) ++ footer)
+
+type Unicode = Char
+
+runParse :: String -> [(Char, Unicode)]
+runParse s=  either (error . show) id (parse parseMap "" s)
+
+anyline = manyTill anyChar newline
+
+getHexChar :: Parsec String () Char
+getHexChar = do
+  [(c,_)] <- readLitChar . ("\\x" ++) <$> many1 hexDigit
+  return c
+
+parseMap :: Parsec String () [(Char, Unicode)]
+parseMap = do
+  skipMany (char '#' >> anyline)
+  many (flip (,) <$> getHexChar <* tab <*> getHexChar <* anyline)
+
+