{- |

Module : $Header$

Description : parser for CASL specification librariess

Copyright : (c) Maciek Makowski, Uni Bremen 2002-2006

License : GPLv2 or higher, see LICENSE.txt

Maintainer : Christian.Maeder@dfki.de

Stability : provisional

Portability : non-portable(Grothendieck)

Parser for CASL specification librariess

Follows Sect. II:3.1.5 of the CASL Reference Manual.

-}

module Syntax.Parse_AS_Library (library) where

import Logic.Grothendieck (LogicGraph)

import Syntax.AS_Structured

import Syntax.AS_Library

import Syntax.Parse_AS_Structured

(logicName, groupSpec, aSpec, parseMapping)

import Syntax.Parse_AS_Architecture

import Common.AS_Annotation

import Common.AnnoState

import Common.Id

import Common.IRI (IRI, nullIRI, simpleIdToIRI)

import Common.Keywords

import Common.Lexer

import Common.LibName

import Common.Parsec

import Common.Token

import Text.ParserCombinators.Parsec

import Data.List

import Data.Maybe (maybeToList)

import Data.Char

import Control.Monad

import Framework.AS

-- * Parsing functions

-- | Parse a library of specifications

library :: LogicGraph -> AParser st LIB_DEFN

library lG = do

(ps, ln) <- option (nullRange, emptyLibName "") $ do

s1 <- asKey libraryS

n <- libName

return (tokPos s1, n)

an <- annos

ls <- libItems lG

return (Lib_defn ln ls ps an)

-- | Parse library name

libName :: AParser st LibName

libName = do

libid <- libId

v <- optionMaybe version

return $ LibName libid v

-- | Parse the library version

version :: AParser st VersionNumber

version = do

s <- asKey versionS

pos <- getPos

n <- sepBy1 (many1 digit) (string dotS)

skip

return (VersionNumber n (tokPos s `appRange` Range [pos]))

-- | Parse library ID

libId :: AParser st LibId

libId = do

pos <- getPos

path <- sepBy1 (many1 $ satisfy $ \ c -> isAlphaNum c || elem c "_-+'")

(string "/")

skip

return $ IndirectLink (intercalate "/" path) (Range [pos])

"" noTime

-- ??? URL need to be added

-- | Parse the library elements

libItems :: LogicGraph -> AParser st [Annoted LIB_ITEM]

libItems l =

(eof >> return [])

<|> do

r <- libItem l

la <- lineAnnos

an <- annos

is <- libItems $ case r of

Logic_decl logN _ ->

setLogicName logN l

_ -> l

case is of

[] -> return [Annoted r nullRange [] $ la ++ an]

Annoted i p nl ra : rs ->

return $ Annoted r nullRange [] la : Annoted i p (an ++ nl) ra : rs

-- | Parse an element of the library

libItem :: LogicGraph -> AParser st LIB_ITEM

libItem l =

-- spec defn

do s <- asKey specS

n' <- simpleId

let n = simpleIdToIRI n'

g <- generics l

e <- equalT

a <- aSpec l

q <- optEnd

return (Syntax.AS_Library.Spec_defn n g a

(catRange ([s, e] ++ maybeToList q)))

<|> -- view defn

do s1 <- asKey viewS

vn' <- simpleId

let vn = simpleIdToIRI vn'

g <- generics l

s2 <- asKey ":"

vt <- viewType l

(symbMap, ps) <- option ([], []) $ do

s <- equalT

(m, _) <- parseMapping l

return (m, [s])

q <- optEnd

return (Syntax.AS_Library.View_defn vn g vt symbMap

(catRange ([s1, s2] ++ ps ++ maybeToList q)))

<|> -- unit spec

do kUnit <- asKey unitS

kSpec <- asKey specS

name' <- simpleId

let name = simpleIdToIRI name'

kEqu <- equalT

usp <- unitSpec l

kEnd <- optEnd

return (Syntax.AS_Library.Unit_spec_defn name usp

(catRange ([kUnit, kSpec, kEqu] ++ maybeToList kEnd)))

<|> -- ref spec

do kRef <- asKey refinementS

name' <- simpleId

let name = simpleIdToIRI name'

kEqu <- equalT

rsp <- refSpec l

kEnd <- optEnd

return (Syntax.AS_Library.Ref_spec_defn name rsp

(catRange ([kRef, kEqu] ++ maybeToList kEnd)))

<|> -- arch spec

do kArch <- asKey archS

kASpec <- asKey specS

name <- simpleId

kEqu <- equalT

asp <- annotedArchSpec l

kEnd <- optEnd

return (Syntax.AS_Library.Arch_spec_defn name asp

(catRange ([kArch, kASpec, kEqu] ++ maybeToList kEnd)))

<|> -- download

do s1 <- asKey fromS

iln <- libName

s2 <- asKey getS

(il, ps) <- downloadItems

q <- optEnd

return (Download_items iln il

(catRange ([s1, s2] ++ ps ++ maybeToList q)))

<|> -- logic

do s <- asKey logicS

logN@(Logic_name t _ _) <- logicName

return (Logic_decl logN (catRange [s, t]))

<|> -- newlogic

do (n, s1) <- newlogicP

s2 <- equalT

(ml, s3) <- metaP

(s, s4) <- syntaxP

(m, s5) <- modelsP

(f, s6) <- foundationP

(p, s7) <- proofsP

(pa, s8) <- patternsP

q <- optEnd

return (Newlogic_defn (LogicDef n ml s m f p pa)

(catRange ([s1, s2, s3, s4, s5, s6, s7, s8] ++ maybeToList q)))

<|> -- newcomorphism

do (n, s1) <- newcomorphismP

s2 <- equalT

(ml, s3) <- metaP

(s, s4) <- sourceP

(t, s5) <- targetP

(sv, s6) <- syntaxP

(pv, s8) <- proofsP

(mv, s7) <- modelsP

q <- optEnd

return (Newcomorphism_defn (ComorphismDef n ml s t sv pv mv)

(catRange ([s1, s2, s3, s4, s5, s6, s7, s8] ++ maybeToList q)))

<|> -- just a spec (turned into "spec spec = sp")

do p1 <- getPos

a <- aSpec l

p2 <- getPos

if p1 == p2 then fail "cannot parse spec" else

return (Syntax.AS_Library.Spec_defn nullIRI

(Genericity (Params []) (Imported []) nullRange) a nullRange)

downloadItems :: AParser st (DownloadItems, [Token])

downloadItems = do

(il, ps) <- separatedBy itemNameOrMap anSemiOrComma

return (ItemMaps il, ps)

<|> do

s <- asKey mapsTo

i <- simpleId

return (UniqueItem $ simpleIdToIRI i, [s])

-- | Parse view type

viewType :: LogicGraph -> AParser st VIEW_TYPE

viewType l = do

sp1 <- annoParser (groupSpec l)

s <- asKey toS

sp2 <- annoParser (groupSpec l)

return (View_type sp1 sp2 $ tokPos s)

simpleIdOrDDottedId :: GenParser Char st Token

simpleIdOrDDottedId = pToken $ liftM2 (++)

(reserved casl_structured_reserved_words scanAnyWords)

$ optionL $ try $ string ".." <++> scanAnyWords

-- | Parse item name or name map

itemNameOrMap :: AParser st ItemNameMap

itemNameOrMap = do

i1 <- simpleIdOrDDottedId

i2 <- optionMaybe $ do

_ <- asKey mapsTo

if isInfixOf ".." $ tokStr i1

then do

s <- simpleIdOrDDottedId

return $ simpleIdToIRI s

else do

s <- simpleId

return $ simpleIdToIRI s

return $ ItemNameMap (simpleIdToIRI i1) i2

optEnd :: AParser st (Maybe Token)

optEnd = try

(addAnnos >> optionMaybe (pToken $ keyWord $ string endS))

<< addLineAnnos

generics :: LogicGraph -> AParser st GENERICITY

generics l = do

(pa, ps1) <- params l

(imp, ps2) <- option ([], nullRange) (imports l)

return $ Genericity (Params pa) (Imported imp) $ appRange ps1 ps2

params :: LogicGraph -> AParser st ([Annoted SPEC], Range)

params l = do

pas <- many (param l)

let (pas1, ps) = unzip pas

return (pas1, concatMapRange id ps)

param :: LogicGraph -> AParser st (Annoted SPEC, Range)

param l = do

b <- oBracketT

pa <- aSpec l

c <- cBracketT

return (pa, toRange b [] c)

imports :: LogicGraph -> AParser st ([Annoted SPEC], Range)

imports l = do

s <- asKey givenS

(sps, ps) <- separatedBy (annoParser $ groupSpec l) anComma

return (sps, catRange (s : ps))

newlogicP :: AParser st (IRI, Token)

newlogicP = do

s <- asKey newlogicS

n <- simpleId

return (simpleIdToIRI n, s)

metaP :: AParser st (FRAM, Token)

metaP = do

s <- asKey metaS

f <- framP

return (f, s)

framP :: AParser st FRAM

framP = do

asKey lfS

return LF

<|> do

asKey isabelleS

return Isabelle

<|> do

asKey maudeS

return Maude

syntaxP :: AParser st (IRI, Token)

syntaxP = do

s <- asKey syntaxS

t <- simpleIdOrDDottedId

return (simpleIdToIRI t, s)

modelsP :: AParser st (IRI, Token)

modelsP = do

s <- asKey modelsS

m <- simpleIdOrDDottedId

return (simpleIdToIRI m, s)

<|> return (nullIRI, nullTok)

foundationP :: AParser st (IRI, Token)

foundationP = do

s <- asKey foundationS

f <- simpleId

return (simpleIdToIRI f, s)

<|> return (nullIRI, nullTok)

proofsP :: AParser st (IRI, Token)

proofsP = do

s <- asKey proofsS

p <- simpleIdOrDDottedId

return (simpleIdToIRI p, s)

<|> return (nullIRI, nullTok)

patternsP :: AParser st (Token, Token)

patternsP = do

s <- asKey patternsS

p <- simpleId

return (p, s)

<|> return (nullTok, nullTok)

newcomorphismP :: AParser st (IRI, Token)

newcomorphismP = do

-- add newcomorphismS = "newcomorphism" in

s <- asKey newcomorphismS

n <- simpleId

return (simpleIdToIRI n, s)

sourceP :: AParser st (IRI, Token)

sourceP = do

s <- asKey sourceS

sl <- simpleIdOrDDottedId

return (simpleIdToIRI sl, s)

targetP :: AParser st (IRI, Token)

targetP = do

s <- asKey targetS

tl <- simpleIdOrDDottedId

return (simpleIdToIRI tl, s)