{- |

Module : ./CoCASL/Print_AS.hs

Description : pretty print abstract syntax of CoCASL

Copyright : (c) T. Mossakowski, Uni Bremen 2004-2006

License : GPLv2 or higher, see LICENSE.txt

Maintainer : hausmann@informatik.uni-bremen.de

Stability : provisional

Portability : portable

printing AS_CoCASL and CoCASLSign data types

-}

module CoCASL.Print_AS where

import Common.Keywords

import Common.AS_Annotation

import Common.Doc

import Common.DocUtils

import CASL.AS_Basic_CASL

import CASL.ToDoc

import CoCASL.AS_CoCASL

import CoCASL.CoCASLSign

instance Pretty C_BASIC_ITEM where

pretty = printC_BASIC_ITEM

printC_BASIC_ITEM :: C_BASIC_ITEM -> Doc

printC_BASIC_ITEM cb = case cb of

CoFree_datatype l _ -> keyword cofreeS <+> printAnnotedCoDatas l

CoSort_gen l _ -> case l of

[Annoted (Ext_SIG_ITEMS (CoDatatype_items l' _)) _ _ _] ->

keyword cogeneratedS <+> printAnnotedCoDatas l'

_ -> keyword cogeneratedS <+> specBraces (vcat $ map pretty l)

printAnnotedCoDatas :: [Annoted CODATATYPE_DECL] -> Doc

printAnnotedCoDatas l = keyword (cotypeS ++ appendS l)

<+> semiAnnos printCODATATYPE_DECL l

instance Pretty C_SIG_ITEM where

pretty = printC_SIG_ITEM

printC_SIG_ITEM :: C_SIG_ITEM -> Doc

printC_SIG_ITEM (CoDatatype_items l _) = printAnnotedCoDatas l

instance Pretty CODATATYPE_DECL where

pretty = printCODATATYPE_DECL

printCODATATYPE_DECL :: CODATATYPE_DECL -> Doc

printCODATATYPE_DECL (CoDatatype_decl s a _) = case a of

[] -> idDoc s

_ -> fsep [idDoc s, defn, sep $ punctuate (space <> bar) $

map (printAnnoted printCOALTERNATIVE) a]

instance Pretty COALTERNATIVE where

pretty = printCOALTERNATIVE

printCOALTERNATIVE :: COALTERNATIVE -> Doc

printCOALTERNATIVE coal = case coal of

Co_construct k n l _ -> case n of

Nothing -> empty

Just i -> idDoc i

<> (case l of

[] -> case k of

Total -> empty

_ -> parens empty

_ -> parens (fsep $ punctuate semi $ map printCOCOMPONENTS l))

<> case k of

Total -> empty

_ -> quMarkD

CoSubsorts l _ -> text (sortS ++ pluralS l) <+> ppWithCommas l

instance Pretty COCOMPONENTS where

pretty = printCOCOMPONENTS

printCOCOMPONENTS :: COCOMPONENTS -> Doc

printCOCOMPONENTS (CoSelect l s _) =

fsep (punctuate comma $ map idDoc l) <> colon <> pretty s

instance FormExtension C_FORMULA where

isQuantifierLike f = case f of

BoxOrDiamond {} -> False

CoSort_gen_ax {} -> True

instance Pretty C_FORMULA where

pretty = printC_FORMULA

printC_FORMULA :: C_FORMULA -> Doc

printC_FORMULA cf = case cf of

BoxOrDiamond b t f _ ->

let sp = case t of

Simple_mod _ -> (<>)

_ -> (<+>)

td = printMODALITY t

fd = printFormula f

in if b then brackets td <> fd else less `sp` td `sp` greater <+> fd

CoSort_gen_ax sorts ops _ -> keyword cogeneratedS <>

specBraces (sep [ keyword sortS <+> ppWithCommas sorts <> semi

, fsep $ punctuate semi $ map pretty ops])

instance Pretty MODALITY where

pretty = printMODALITY

printMODALITY :: MODALITY -> Doc

printMODALITY md = case md of

Simple_mod ident -> sidDoc ident

Term_mod t -> printTerm t

instance Pretty CoCASLSign where

pretty = printCoCASLSign

printCoCASLSign :: CoCASLSign -> Doc

printCoCASLSign _ = empty