mirror of
https://github.com/GrammaticalFramework/gf-core.git
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Founding the newly structured GF2.0 cvs archive.
This commit is contained in:
aarne
435
src/GF/Source/PrintGF.hs
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435
src/GF/Source/PrintGF.hs
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@@ -0,0 +1,435 @@
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module PrintGF where
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-- pretty-printer generated by the BNF converter, except --H
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import AbsGF
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import Ident --H
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import Char
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-- the top-level printing method
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printTree :: Print a => a -> String
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printTree = render . prt 0
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-- you may want to change render and parenth
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render :: [String] -> String
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render = rend 0 where
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rend i ss = case ss of
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--H these three are hand-written
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"{0" :ts -> cons "{" $ rend (i+1) ts
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t :"}0" :ts -> cons t $ space "}" $ rend (i-1) ts
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t : "." :ts -> cons t $ cons "." $ rend i ts
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"[" :ts -> cons "[" $ rend i ts
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"(" :ts -> cons "(" $ rend i ts
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"{" :ts -> cons "{" $ new (i+1) $ rend (i+1) ts
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"}" : ";":ts -> new (i-1) $ space "}" $ cons ";" $ new (i-1) $ rend (i-1) ts
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"}" :ts -> new (i-1) $ cons "}" $ new (i-1) $ rend (i-1) ts
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";" :ts -> cons ";" $ new i $ rend i ts
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t : "," :ts -> cons t $ space "," $ rend i ts
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t : ")" :ts -> cons t $ cons ")" $ rend i ts
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t : "]" :ts -> cons t $ cons "]" $ rend i ts
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t :ts -> space t $ rend i ts
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_ -> ""
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cons s t = s ++ t
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new i s = '\n' : replicate (2*i) ' ' ++ dropWhile isSpace s
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space t s = if null s then t else t ++ " " ++ s
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parenth :: [String] -> [String]
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parenth ss = ["("] ++ ss ++ [")"]
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-- the printer class does the job
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class Print a where
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prt :: Int -> a -> [String]
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prtList :: [a] -> [String]
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prtList = concat . map (prt 0)
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instance Print a => Print [a] where
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prt _ = prtList
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instance Print Integer where
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prt _ = (:[]) . show
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instance Print Double where
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prt _ = (:[]) . show
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instance Print Char where
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prt _ s = ["'" ++ mkEsc s ++ "'"]
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prtList s = ["\"" ++ concatMap mkEsc s ++ "\""]
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mkEsc s = case s of
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_ | elem s "\\\"'" -> '\\':[s]
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'\n' -> "\\n"
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'\t' -> "\\t"
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_ -> [s]
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prPrec :: Int -> Int -> [String] -> [String]
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prPrec i j = if j<i then parenth else id
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instance Print Ident where
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prt _ i = [prIdent i] --H
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prtList es = case es of
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[x] -> (concat [prt 0 x])
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x:xs -> (concat [prt 0 x , [","] , prt 0 xs])
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instance Print LString where
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prt _ (LString i) = [i]
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instance Print Grammar where
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prt i e = case e of
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Gr moddefs -> prPrec i 0 (concat [prt 0 moddefs])
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instance Print ModDef where
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prt i e = case e of
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MMain id0 id concspecs -> prPrec i 0 (concat [["grammar"] , prt 0 id0 , ["="] , ["{"] , ["abstract"] , ["="] , prt 0 id , [";"] , prt 0 concspecs , ["}"]])
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MAbstract id extend opens topdefs -> prPrec i 0 (concat [["abstract"] , prt 0 id , ["="] , prt 0 extend , prt 0 opens , ["{"] , prt 0 topdefs , ["}"]])
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MResource id extend opens topdefs -> prPrec i 0 (concat [["resource"] , prt 0 id , ["="] , prt 0 extend , prt 0 opens , ["{"] , prt 0 topdefs , ["}"]])
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MResourceInt id extend opens topdefs -> prPrec i 0 (concat [["resource"] , ["abstract"] , prt 0 id , ["="] , prt 0 extend , prt 0 opens , ["{"] , prt 0 topdefs , ["}"]])
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MResourceImp id0 id opens topdefs -> prPrec i 0 (concat [["resource"] , prt 0 id0 , ["of"] , prt 0 id , ["="] , prt 0 opens , ["{"] , prt 0 topdefs , ["}"]])
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MConcrete id0 id extend opens topdefs -> prPrec i 0 (concat [["concrete"] , prt 0 id0 , ["of"] , prt 0 id , ["="] , prt 0 extend , prt 0 opens , ["{"] , prt 0 topdefs , ["}"]])
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MConcreteInt id0 id extend opens topdefs -> prPrec i 0 (concat [["concrete"] , ["abstract"] , ["of"] , prt 0 id0 , ["in"] , prt 0 id , ["="] , prt 0 extend , prt 0 opens , ["{"] , prt 0 topdefs , ["}"]])
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MConcreteImp open id0 id -> prPrec i 0 (concat [["concrete"] , ["of"] , prt 0 open , ["="] , prt 0 id0 , ["**"] , prt 0 id])
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MTransfer id open0 open extend opens topdefs -> prPrec i 0 (concat [["transfer"] , prt 0 id , [":"] , prt 0 open0 , ["->"] , prt 0 open , ["="] , prt 0 extend , prt 0 opens , ["{"] , prt 0 topdefs , ["}"]])
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MReuseAbs id0 id -> prPrec i 0 (concat [["resource"] , ["abstract"] , prt 0 id0 , ["="] , ["reuse"] , prt 0 id])
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MReuseCnc id0 id -> prPrec i 0 (concat [["resource"] , ["concrete"] , prt 0 id0 , ["="] , ["reuse"] , prt 0 id])
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MReuseAll id0 extend id -> prPrec i 0 (concat [["resource"] , prt 0 id0 , ["="] , prt 0 extend , ["reuse"] , prt 0 id])
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prtList es = case es of
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[] -> (concat [])
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x:xs -> (concat [prt 0 x , prt 0 xs])
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instance Print ConcSpec where
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prt i e = case e of
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ConcSpec id concexp -> prPrec i 0 (concat [prt 0 id , ["="] , prt 0 concexp])
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prtList es = case es of
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[] -> (concat [])
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[x] -> (concat [prt 0 x])
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x:xs -> (concat [prt 0 x , [";"] , prt 0 xs])
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instance Print ConcExp where
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prt i e = case e of
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ConcExp id transfers -> prPrec i 0 (concat [prt 0 id , prt 0 transfers])
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instance Print Transfer where
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prt i e = case e of
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TransferIn open -> prPrec i 0 (concat [["("] , ["transfer"] , ["in"] , prt 0 open , [")"]])
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TransferOut open -> prPrec i 0 (concat [["("] , ["transfer"] , ["out"] , prt 0 open , [")"]])
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prtList es = case es of
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[] -> (concat [])
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x:xs -> (concat [prt 0 x , prt 0 xs])
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instance Print Extend where
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prt i e = case e of
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Ext id -> prPrec i 0 (concat [prt 0 id , ["**"]])
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NoExt -> prPrec i 0 (concat [])
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instance Print Opens where
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prt i e = case e of
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NoOpens -> prPrec i 0 (concat [])
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Opens opens -> prPrec i 0 (concat [["open"] , prt 0 opens , ["in"]])
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instance Print Open where
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prt i e = case e of
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OName id -> prPrec i 0 (concat [prt 0 id])
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OQual id0 id -> prPrec i 0 (concat [["("] , prt 0 id0 , ["="] , prt 0 id , [")"]])
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prtList es = case es of
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[] -> (concat [])
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[x] -> (concat [prt 0 x])
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x:xs -> (concat [prt 0 x , [","] , prt 0 xs])
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instance Print Def where
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prt i e = case e of
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DDecl ids exp -> prPrec i 0 (concat [prt 0 ids , [":"] , prt 0 exp])
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DDef ids exp -> prPrec i 0 (concat [prt 0 ids , ["="] , prt 0 exp])
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DPatt id patts exp -> prPrec i 0 (concat [prt 0 id , prt 0 patts , ["="] , prt 0 exp])
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DFull ids exp0 exp -> prPrec i 0 (concat [prt 0 ids , [":"] , prt 0 exp0 , ["="] , prt 0 exp])
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prtList es = case es of
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[x] -> (concat [prt 0 x , [";"]])
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x:xs -> (concat [prt 0 x , [";"] , prt 0 xs])
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instance Print TopDef where
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prt i e = case e of
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DefCat catdefs -> prPrec i 0 (concat [["cat"] , prt 0 catdefs])
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DefFun fundefs -> prPrec i 0 (concat [["fun"] , prt 0 fundefs])
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DefDef defs -> prPrec i 0 (concat [["def"] , prt 0 defs])
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DefData pardefs -> prPrec i 0 (concat [["data"] , prt 0 pardefs])
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DefTrans flagdefs -> prPrec i 0 (concat [["transfer"] , prt 0 flagdefs])
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DefPar pardefs -> prPrec i 0 (concat [["param"] , prt 0 pardefs])
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DefOper defs -> prPrec i 0 (concat [["oper"] , prt 0 defs])
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DefLincat printdefs -> prPrec i 0 (concat [["lincat"] , prt 0 printdefs])
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DefLindef defs -> prPrec i 0 (concat [["lindef"] , prt 0 defs])
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DefLin defs -> prPrec i 0 (concat [["lin"] , prt 0 defs])
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DefPrintCat printdefs -> prPrec i 0 (concat [["printname"] , ["cat"] , prt 0 printdefs])
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DefPrintFun printdefs -> prPrec i 0 (concat [["printname"] , ["fun"] , prt 0 printdefs])
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DefFlag flagdefs -> prPrec i 0 (concat [["flags"] , prt 0 flagdefs])
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DefPrintOld printdefs -> prPrec i 0 (concat [["printname"] , prt 0 printdefs])
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DefLintype defs -> prPrec i 0 (concat [["lintype"] , prt 0 defs])
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DefPattern defs -> prPrec i 0 (concat [["pattern"] , prt 0 defs])
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prtList es = case es of
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[] -> (concat [])
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x:xs -> (concat [prt 0 x , prt 0 xs])
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instance Print CatDef where
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prt i e = case e of
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CatDef id ddecls -> prPrec i 0 (concat [prt 0 id , prt 0 ddecls])
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prtList es = case es of
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[x] -> (concat [prt 0 x , [";"]])
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x:xs -> (concat [prt 0 x , [";"] , prt 0 xs])
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instance Print FunDef where
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prt i e = case e of
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FunDef ids exp -> prPrec i 0 (concat [prt 0 ids , [":"] , prt 0 exp])
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prtList es = case es of
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[x] -> (concat [prt 0 x , [";"]])
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x:xs -> (concat [prt 0 x , [";"] , prt 0 xs])
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instance Print ParDef where
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prt i e = case e of
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ParDef id parconstrs -> prPrec i 0 (concat [prt 0 id , ["="] , prt 0 parconstrs])
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ParDefIndir id0 id -> prPrec i 0 (concat [prt 0 id0 , ["="] , ["("] , ["in"] , prt 0 id , [")"]])
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ParDefAbs id -> prPrec i 0 (concat [prt 0 id])
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prtList es = case es of
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[x] -> (concat [prt 0 x , [";"]])
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x:xs -> (concat [prt 0 x , [";"] , prt 0 xs])
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instance Print ParConstr where
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prt i e = case e of
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ParConstr id ddecls -> prPrec i 0 (concat [prt 0 id , prt 0 ddecls])
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prtList es = case es of
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[] -> (concat [])
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[x] -> (concat [prt 0 x])
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x:xs -> (concat [prt 0 x , ["|"] , prt 0 xs])
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instance Print PrintDef where
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prt i e = case e of
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PrintDef ids exp -> prPrec i 0 (concat [prt 0 ids , ["="] , prt 0 exp])
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prtList es = case es of
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[x] -> (concat [prt 0 x , [";"]])
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x:xs -> (concat [prt 0 x , [";"] , prt 0 xs])
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instance Print FlagDef where
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prt i e = case e of
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FlagDef id0 id -> prPrec i 0 (concat [prt 0 id0 , ["="] , prt 0 id])
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prtList es = case es of
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[x] -> (concat [prt 0 x , [";"]])
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x:xs -> (concat [prt 0 x , [";"] , prt 0 xs])
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instance Print LocDef where
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prt i e = case e of
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LDDecl ids exp -> prPrec i 0 (concat [prt 0 ids , [":"] , prt 0 exp])
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LDDef ids exp -> prPrec i 0 (concat [prt 0 ids , ["="] , prt 0 exp])
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LDFull ids exp0 exp -> prPrec i 0 (concat [prt 0 ids , [":"] , prt 0 exp0 , ["="] , prt 0 exp])
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prtList es = case es of
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[] -> (concat [])
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[x] -> (concat [prt 0 x])
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x:xs -> (concat [prt 0 x , [";"] , prt 0 xs])
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instance Print Exp where
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prt i e = case e of
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EIdent id -> prPrec i 4 (concat [prt 0 id])
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EConstr id -> prPrec i 4 (concat [["{0"] , prt 0 id , ["}0"]]) --H
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ECons id -> prPrec i 4 (concat [["["] , prt 0 id , ["]"]])
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ESort sort -> prPrec i 4 (concat [prt 0 sort])
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EString str -> prPrec i 4 (concat [prt 0 str])
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EInt n -> prPrec i 4 (concat [prt 0 n])
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EMeta -> prPrec i 4 (concat [["?"]])
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EEmpty -> prPrec i 4 (concat [["["] , ["]"]])
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EStrings str -> prPrec i 4 (concat [["["] , prt 0 str , ["]"]])
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ERecord locdefs -> prPrec i 4 (concat [["{"] , prt 0 locdefs , ["}"]])
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ETuple tuplecomps -> prPrec i 4 (concat [["<"] , prt 0 tuplecomps , [">"]])
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EIndir id -> prPrec i 4 (concat [["("] , ["in"] , prt 0 id , [")"]])
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ETyped exp0 exp -> prPrec i 4 (concat [["<"] , prt 0 exp0 , [":"] , prt 0 exp , [">"]])
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EProj exp label -> prPrec i 3 (concat [prt 3 exp , ["."] , prt 0 label])
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EQConstr id0 id -> prPrec i 3 (concat [["{0"] , prt 0 id0 , ["."] , prt 0 id , ["}0"]]) --H
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EQCons id0 id -> prPrec i 3 (concat [["["] , prt 0 id0 , ["."] , prt 0 id , ["]"]])
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EApp exp0 exp -> prPrec i 2 (concat [prt 2 exp0 , prt 3 exp])
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ETable cases -> prPrec i 2 (concat [["table"] , ["{"] , prt 0 cases , ["}"]])
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ETTable exp cases -> prPrec i 2 (concat [["table"] , prt 4 exp , ["{"] , prt 0 cases , ["}"]])
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ECase exp cases -> prPrec i 2 (concat [["case"] , prt 0 exp , ["of"] , ["{"] , prt 0 cases , ["}"]])
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EVariants exps -> prPrec i 2 (concat [["variants"] , ["{"] , prt 0 exps , ["}"]])
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EPre exp alterns -> prPrec i 2 (concat [["pre"] , ["{"] , prt 0 exp , [";"] , prt 0 alterns , ["}"]])
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EStrs exps -> prPrec i 2 (concat [["strs"] , ["{"] , prt 0 exps , ["}"]])
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EConAt id exp -> prPrec i 2 (concat [prt 0 id , ["@"] , prt 4 exp])
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ESelect exp0 exp -> prPrec i 1 (concat [prt 1 exp0 , ["!"] , prt 2 exp])
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ETupTyp exp0 exp -> prPrec i 1 (concat [prt 1 exp0 , ["*"] , prt 2 exp])
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EExtend exp0 exp -> prPrec i 1 (concat [prt 1 exp0 , ["**"] , prt 2 exp])
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EAbstr binds exp -> prPrec i 0 (concat [["\\"] , prt 0 binds , ["->"] , prt 0 exp])
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ECTable binds exp -> prPrec i 0 (concat [["\\"] , ["\\"] , prt 0 binds , ["=>"] , prt 0 exp])
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EProd decl exp -> prPrec i 0 (concat [prt 0 decl , ["->"] , prt 0 exp])
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ETType exp0 exp -> prPrec i 0 (concat [prt 1 exp0 , ["=>"] , prt 0 exp])
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EConcat exp0 exp -> prPrec i 0 (concat [prt 1 exp0 , ["++"] , prt 0 exp])
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EGlue exp0 exp -> prPrec i 0 (concat [prt 1 exp0 , ["+"] , prt 0 exp])
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ELet locdefs exp -> prPrec i 0 (concat [["let"] , ["{"] , prt 0 locdefs , ["}"] , ["in"] , prt 0 exp])
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EEqs equations -> prPrec i 0 (concat [["fn"] , ["{"] , prt 0 equations , ["}"]])
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ELString lstring -> prPrec i 4 (concat [prt 0 lstring])
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||||
ELin id -> prPrec i 2 (concat [["Lin"] , prt 0 id])
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prtList es = case es of
|
||||
[] -> (concat [])
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[x] -> (concat [prt 0 x])
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x:xs -> (concat [prt 0 x , [";"] , prt 0 xs])
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instance Print Patt where
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prt i e = case e of
|
||||
PW -> prPrec i 1 (concat [["_"]])
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PV id -> prPrec i 1 (concat [prt 0 id])
|
||||
PCon id -> prPrec i 1 (concat [["{0"] , prt 0 id , ["}0"]]) --H
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||||
PQ id0 id -> prPrec i 1 (concat [prt 0 id0 , ["."] , prt 0 id])
|
||||
PInt n -> prPrec i 1 (concat [prt 0 n])
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||||
PStr str -> prPrec i 1 (concat [prt 0 str])
|
||||
PR pattasss -> prPrec i 1 (concat [["{"] , prt 0 pattasss , ["}"]])
|
||||
PTup patttuplecomps -> prPrec i 1 (concat [["<"] , prt 0 patttuplecomps , [">"]])
|
||||
PC id patts -> prPrec i 0 (concat [prt 0 id , prt 0 patts])
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||||
PQC id0 id patts -> prPrec i 0 (concat [prt 0 id0 , ["."] , prt 0 id , prt 0 patts])
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||||
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||||
prtList es = case es of
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[x] -> (concat [prt 1 x])
|
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x:xs -> (concat [prt 1 x , prt 0 xs])
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instance Print PattAss where
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prt i e = case e of
|
||||
PA ids patt -> prPrec i 0 (concat [prt 0 ids , ["="] , prt 0 patt])
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||||
prtList es = case es of
|
||||
[] -> (concat [])
|
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[x] -> (concat [prt 0 x])
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||||
x:xs -> (concat [prt 0 x , [";"] , prt 0 xs])
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instance Print Label where
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||||
prt i e = case e of
|
||||
LIdent id -> prPrec i 0 (concat [prt 0 id])
|
||||
LVar n -> prPrec i 0 (concat [["$"] , prt 0 n])
|
||||
|
||||
|
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instance Print Sort where
|
||||
prt i e = case e of
|
||||
Sort_Type -> prPrec i 0 (concat [["Type"]])
|
||||
Sort_PType -> prPrec i 0 (concat [["PType"]])
|
||||
Sort_Tok -> prPrec i 0 (concat [["Tok"]])
|
||||
Sort_Str -> prPrec i 0 (concat [["Str"]])
|
||||
Sort_Strs -> prPrec i 0 (concat [["Strs"]])
|
||||
|
||||
|
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instance Print PattAlt where
|
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prt i e = case e of
|
||||
AltP patt -> prPrec i 0 (concat [prt 0 patt])
|
||||
|
||||
prtList es = case es of
|
||||
[x] -> (concat [prt 0 x])
|
||||
x:xs -> (concat [prt 0 x , ["|"] , prt 0 xs])
|
||||
|
||||
instance Print Bind where
|
||||
prt i e = case e of
|
||||
BIdent id -> prPrec i 0 (concat [prt 0 id])
|
||||
BWild -> prPrec i 0 (concat [["_"]])
|
||||
|
||||
prtList es = case es of
|
||||
[] -> (concat [])
|
||||
[x] -> (concat [prt 0 x])
|
||||
x:xs -> (concat [prt 0 x , [","] , prt 0 xs])
|
||||
|
||||
instance Print Decl where
|
||||
prt i e = case e of
|
||||
DDec binds exp -> prPrec i 0 (concat [["("] , prt 0 binds , [":"] , prt 0 exp , [")"]])
|
||||
DExp exp -> prPrec i 0 (concat [prt 2 exp])
|
||||
|
||||
|
||||
instance Print TupleComp where
|
||||
prt i e = case e of
|
||||
TComp exp -> prPrec i 0 (concat [prt 0 exp])
|
||||
|
||||
prtList es = case es of
|
||||
[] -> (concat [])
|
||||
[x] -> (concat [prt 0 x])
|
||||
x:xs -> (concat [prt 0 x , [","] , prt 0 xs])
|
||||
|
||||
instance Print PattTupleComp where
|
||||
prt i e = case e of
|
||||
PTComp patt -> prPrec i 0 (concat [prt 0 patt])
|
||||
|
||||
prtList es = case es of
|
||||
[] -> (concat [])
|
||||
[x] -> (concat [prt 0 x])
|
||||
x:xs -> (concat [prt 0 x , [","] , prt 0 xs])
|
||||
|
||||
instance Print Case where
|
||||
prt i e = case e of
|
||||
Case pattalts exp -> prPrec i 0 (concat [prt 0 pattalts , ["=>"] , prt 0 exp])
|
||||
|
||||
prtList es = case es of
|
||||
[x] -> (concat [prt 0 x])
|
||||
x:xs -> (concat [prt 0 x , [";"] , prt 0 xs])
|
||||
|
||||
instance Print Equation where
|
||||
prt i e = case e of
|
||||
Equ patts exp -> prPrec i 0 (concat [prt 0 patts , ["->"] , prt 0 exp])
|
||||
|
||||
prtList es = case es of
|
||||
[] -> (concat [])
|
||||
[x] -> (concat [prt 0 x])
|
||||
x:xs -> (concat [prt 0 x , [";"] , prt 0 xs])
|
||||
|
||||
instance Print Altern where
|
||||
prt i e = case e of
|
||||
Alt exp0 exp -> prPrec i 0 (concat [prt 0 exp0 , ["/"] , prt 0 exp])
|
||||
|
||||
prtList es = case es of
|
||||
[] -> (concat [])
|
||||
[x] -> (concat [prt 0 x])
|
||||
x:xs -> (concat [prt 0 x , [";"] , prt 0 xs])
|
||||
|
||||
instance Print DDecl where
|
||||
prt i e = case e of
|
||||
DDDec binds exp -> prPrec i 0 (concat [["("] , prt 0 binds , [":"] , prt 0 exp , [")"]])
|
||||
DDExp exp -> prPrec i 0 (concat [prt 4 exp])
|
||||
|
||||
prtList es = case es of
|
||||
[] -> (concat [])
|
||||
x:xs -> (concat [prt 0 x , prt 0 xs])
|
||||
|
||||
instance Print OldGrammar where
|
||||
prt i e = case e of
|
||||
OldGr include topdefs -> prPrec i 0 (concat [prt 0 include , prt 0 topdefs])
|
||||
|
||||
|
||||
instance Print Include where
|
||||
prt i e = case e of
|
||||
NoIncl -> prPrec i 0 (concat [])
|
||||
Incl filenames -> prPrec i 0 (concat [["include"] , prt 0 filenames])
|
||||
|
||||
|
||||
instance Print FileName where
|
||||
prt i e = case e of
|
||||
FString str -> prPrec i 0 (concat [prt 0 str])
|
||||
FIdent id -> prPrec i 0 (concat [prt 0 id])
|
||||
FSlash filename -> prPrec i 0 (concat [["/"] , prt 0 filename])
|
||||
FDot filename -> prPrec i 0 (concat [["."] , prt 0 filename])
|
||||
FMinus filename -> prPrec i 0 (concat [["-"] , prt 0 filename])
|
||||
FAddId id filename -> prPrec i 0 (concat [prt 0 id , prt 0 filename])
|
||||
|
||||
prtList es = case es of
|
||||
[x] -> (concat [prt 0 x , [";"]])
|
||||
x:xs -> (concat [prt 0 x , [";"] , prt 0 xs])
|
||||
|
||||
|
||||
Reference in New Issue
Block a user