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-rw-r--r--Smurf.icl32
1 files changed, 18 insertions, 14 deletions
diff --git a/Smurf.icl b/Smurf.icl
index b6b7b90..f2ab10c 100644
--- a/Smurf.icl
+++ b/Smurf.icl
@@ -172,6 +172,7 @@ where
etl (Lit s) = Text s
etl (Var v) = Math False [Raw v]
etl (ECat a b) = List [etl a, etl b]
+ //etl (ECat a b) = List [etl a, Raw "+(", etl b, Raw ")"]
etl (EHead e) = List [Command "textit" [Text "hd"], Raw "(", etl e, Raw ")"]
etl (ETail e) = List [Command "textit" [Text "tl"], Raw "(", etl e, Raw ")"]
etl (EQuotify e) = List [Command "textit" [Text "q"], Raw "(", etl e, Raw ")"]
@@ -260,7 +261,7 @@ step [Get:p] st io _
= (pop st.stack >>= \(var,stk) ->
pure (p, { st & stack = push (get var st.store) stk }), io)
step [Exec:p] st io _
- = (pop st.stack >>= \(pgm,_) -> pure (let vcs = eToVarChars pgm in fromJust $ parsev $ trace (printToString vcs +++ "\n") vcs, zero), io)
+ = (pop st.stack >>= \(pgm,_) -> pure (let vcs = eToVarChars (trace pgm pgm) in fromJust $ parsev $ trace (printToString vcs +++ "\n") vcs, zero), io)
push :: Expr Stack -> Stack
push s st = [s:st]
@@ -272,6 +273,7 @@ pop [s:ss] = pure (s, ss)
head :: Expr -> Maybe Expr
head (Lit "") = empty
head (Lit s) = pure $ Lit $ s % (0,0)
+head (ECat a b) = head a <|> head b
head e = pure $ EHead e
tail :: Expr -> Maybe Expr
@@ -288,20 +290,22 @@ get var store = case filter ((==)var o fst) store of
[(_,val):_] = val
quotify :: Expr -> Expr
-quotify (Lit s) = Lit $ flip (+++) "\"" $ (+++)"\"" $ toString $ quot $ fromString s
+quotify e = ECat (Lit "\"") (ECat (quotify` e) (Lit "\""))
where
- quot :: [Char] -> [Char]
- quot [] = []
- quot ['\\':cs] = ['\\':'\\':quot cs]
- quot ['\n':cs] = ['\\':'n':quot cs]
- quot ['\r':cs] = ['\\':'r':quot cs]
- quot ['\t':cs] = ['\\':'t':quot cs]
- quot ['"':cs] = ['\\':'"':quot cs]
- quot [c:cs] = [c:quot cs]
-quotify (ECat a b) = ECat (quotify a) (quotify b)
-quotify (EHead a) = EHead (quotify a)
-quotify (ETail a) = ETail (quotify a)
-quotify (Var v) = EQuotify (Var v)
+ quotify` (Lit s) = Lit $ toString $ quot $ fromString s
+ where
+ quot :: [Char] -> [Char]
+ quot [] = []
+ quot ['\\':cs] = ['\\':'\\':quot cs]
+ quot ['\n':cs] = ['\\':'n':quot cs]
+ quot ['\r':cs] = ['\\':'r':quot cs]
+ quot ['\t':cs] = ['\\':'t':quot cs]
+ quot ['"':cs] = ['\\':'"':quot cs]
+ quot [c:cs] = [c:quot cs]
+ quotify` (ECat a b) = ECat (quotify` a) (quotify` b)
+ quotify` (EHead a) = EHead (quotify` a)
+ quotify` (ETail a) = ETail (quotify` a)
+ quotify` (Var v) = EQuotify (Var v)
listIO :: IO ListIO
listIO = IO read write