Merged changes from feature/scl to master.

[simantics/platform.git] / bundles / org.simantics.scl.compiler / tests / org / simantics / scl / compiler / tests / scl / Parsing.scl

diff --git a/bundles/org.simantics.scl.compiler/tests/org/simantics/scl/compiler/tests/scl/Parsing.scl b/bundles/org.simantics.scl.compiler/tests/org/simantics/scl/compiler/tests/scl/Parsing.scl
deleted file mode 100644 (file)
index 0ca342a..0000000
--- a/bundles/org.simantics.scl.compiler/tests/org/simantics/scl/compiler/tests/scl/Parsing.scl
+++ /dev/null
@@ -1,62 +0,0 @@
-import "Prelude"\r
-\r
-"""\r
-Parser is a function from a string and a position in the\r
-string to a possible semantics of a substring and the \r
-end of the substring.\r
-"""\r
-data Parser a = Parser (String -> Integer -> Maybe (a, Integer))\r
-\r
-runParser :: Parser a -> String -> Integer -> Maybe (a, Integer)\r
-runParser (Parser f) = f \r
-\r
-instance Functor Parser where\r
-    fmap f (Parser p) = Parser (\input pos -> match p input pos with\r
-        Nothing -> Nothing\r
-        Just (a, newPos) -> Just (f a, newPos)\r
-    )\r
-\r
-instance Monad Parser where\r
-    return x = Parser (\_ pos -> Just (x, pos))    \r
-    (pa >>= f) = Parser (\input pos -> match runParser pa input pos with\r
-        Nothing -> Nothing\r
-        Just (a, newPos) -> runParser (f a) input newPos\r
-    )  \r
-\r
-(|||) :: Parser a -> Parser a -> Parser a\r
-Parser a ||| Parser b = Parser (\input pos -> match a input pos with\r
-    Nothing -> b input pos\r
-    Just x -> Just x\r
-) \r
-\r
-keyword :: String -> Parser ()\r
-keyword word = Parser (\input pos ->\r
-    if regionMatches word 0 input pos (length word)\r
-      then Just ((), pos + (length word))\r
-      else Nothing\r
-)\r
-\r
-data List a = Nil | Cons a (List a)\r
-\r
-listSepL :: Parser () -> Parser a -> Parser (List a)\r
-listSepL sep el = mdo\r
-    head <- el\r
-    tail <- (sep >> listSepL sep el) ||| return Nil\r
-    return (Cons head tail) \r
-\r
-fromList :: List a -> [a]\r
-fromList = unfoldr gen\r
-  where\r
-    gen Nil        = Nothing\r
-    gen (Cons h t) = Just (h, t)\r
-    \r
-listSep :: Parser () -> Parser a -> Parser [a]    \r
-listSep sep el = fmap fromList (listSepL sep el) \r
-\r
-aOrB = (keyword "a" >> return "a") ||| (keyword "b" >> return "b")\r
-\r
-myParser = listSep (keyword ",") aOrB\r
-\r
-main = show (runParser myParser "a,b,b,a" 0)\r
---\r
-Just (["a", "b", "b", "a"], 7)
\ No newline at end of file