forked from GitHub/gf-core
printing of GFCC
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@@ -4,9 +4,9 @@ Abs. Abstract ::= "abstract" "{" [AbsDef] "}" ;
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Cnc. Concrete ::= "concrete" CId "{" [CncDef] "}" ;
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Cnc. Concrete ::= "concrete" CId "{" [CncDef] "}" ;
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Fun. AbsDef ::= CId ":" Type "=" Exp ;
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Fun. AbsDef ::= CId ":" Type "=" Exp ;
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AFl. AbsDef ::= "%" CId "=" String ; -- flag
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--AFl. AbsDef ::= "%" CId "=" String ; -- flag
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Lin. CncDef ::= CId "=" Term ;
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Lin. CncDef ::= CId "=" Term ;
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CFl. CncDef ::= "%" CId "=" String ; -- flag
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--CFl. CncDef ::= "%" CId "=" String ; -- flag
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Typ. Type ::= [CId] "->" CId ;
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Typ. Type ::= [CId] "->" CId ;
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Tr. Exp ::= "(" Atom [Exp] ")" ;
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Tr. Exp ::= "(" Atom [Exp] ")" ;
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@@ -29,7 +29,7 @@ render d = rend 0 (map ($ "") $ d []) "" where
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t : "]" :ts -> showString t . showChar ']' . rend i ts
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t : "]" :ts -> showString t . showChar ']' . rend i ts
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t :ts -> space t . rend i ts
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t :ts -> space t . rend i ts
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_ -> id
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_ -> id
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new i = showChar '\n' . replicateS (2*i) (showChar ' ') . dropWhile isSpace
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new i = showChar '\n' . replicateS (0) (showChar ' ') . dropWhile isSpace
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space t = showString t . id ----(\s -> if null s then "" else (' ':s))
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space t = showString t . id ----(\s -> if null s then "" else (' ':s))
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parenth :: Doc -> Doc
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parenth :: Doc -> Doc
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@@ -94,7 +94,7 @@ instance Print Grammar where
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instance Print Header where
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instance Print Header where
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prt i e = case e of
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prt i e = case e of
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Hdr cid cids -> prPrec i 0 (concatD [doc (showString "grammar") , prt 0 cid , doc (showString "(") , prt 0 cids , doc (showString ")")])
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Hdr cid cids -> prPrec i 0 (concatD [doc (showString "grammar ") , prt 0 cid , doc (showString "(") , prt 0 cids , doc (showString ")")])
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instance Print Abstract where
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instance Print Abstract where
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@@ -104,7 +104,7 @@ instance Print Abstract where
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instance Print Concrete where
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instance Print Concrete where
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prt i e = case e of
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prt i e = case e of
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Cnc cid cncdefs -> prPrec i 0 (concatD [doc (showString "concrete") , prt 0 cid , doc (showString "{") , prt 0 cncdefs , doc (showString "}")])
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Cnc cid cncdefs -> prPrec i 0 (concatD [doc (showString "concrete ") , prt 0 cid , doc (showString "{") , prt 0 cncdefs , doc (showString "}")])
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prtList es = case es of
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prtList es = case es of
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[] -> (concatD [])
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[] -> (concatD [])
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