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proper pretty printing of tokens in PGF.PMCFG

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krasimir
2009-04-15 12:10:08 +00:00
parent f3fdd5ea2d
commit 9c47cf4168
1 changed files with 9 additions and 2 deletions
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11
src/PGF/PMCFG.hs
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@@ -70,7 +70,7 @@ ppProduction (fcat,FApply funid args) =
ppProduction (fcat,FCoerce arg) =
ppFCat fcat <+> text "->" <+> char '_' <> brackets (ppFCat arg)
ppProduction (fcat,FConst _ s) =
ppFCat fcat <+> text "->" <+> text (show s)
ppFCat fcat <+> text "->" <+> ppStr s
ppFun (funid,FFun fun _ arr) =
ppFunId funid <+> text ":=" <+> parens (hcat (punctuate comma (map ppSeqId (elems arr)))) <+> brackets (text (prCId fun))
@@ -83,7 +83,14 @@ ppStartCat (id,fcats) =
ppSymbol (FSymCat d r) = char '<' <> int d <> comma <> int r <> char '>'
ppSymbol (FSymLit d r) = char '<' <> int d <> comma <> int r <> char '>'
ppSymbol (FSymTok (KS t)) = text (show t)
ppSymbol (FSymTok t) = ppTokn t
ppTokn (KS t) = ppStr t
ppTokn (KP ts alts) = text "pre" <+> braces (hsep (punctuate semi (hsep (map ppStr ts) : map ppAlt alts)))
ppAlt (Alt ts ps) = hsep (map ppStr ts) <+> char '/' <+> hsep (map ppStr ps)
ppStr s = doubleQuotes (text s)
ppFCat fcat
| fcat == fcatString = text "String"