modernized parser in EmbedAPI

1 files changed, 23 insertions, 0 deletions

diff --git a/examples/tutorial/embedded/TranslatorLoop.hs b/examples/tutorial/embedded/TranslatorLoop.hs
new file mode 100644
index 000000000..18b20146e
--- /dev/null
+++ b/examples/tutorial/embedded/TranslatorLoop.hs
@@ -0,0 +1,23 @@
+module Main where
+
+import GF.Embed.EmbedAPI
+import System (getArgs)
+
+main :: IO () 
+main = do
+  file:_ <- getArgs
+  gr <- file2grammar file
+  loop (translate gr)
+
+loop :: (String -> String) -> IO ()
+loop trans = do 
+  s <- getLine
+  if s == "quit" then putStrLn "bye" else do  
+    putStrLn $ trans s
+    loop trans
+
+translate :: MultiGrammar -> String -> String
+translate gr = unlines . map transLine . lines where
+  transLine s = case parseAllLang gr (startCat gr) s of
+    (lg,t:_):_ -> unlines [linearize gr l t | l <- languages gr, l /= lg]
+    _ -> "NO PARSE"