forked from GitHub/gf-core
decd7122de
+ References to modules under src/compiler have been eliminated from the PGF library (under src/runtime/haskell). Only two functions had to be moved (from GF.Data.Utilities to PGF.Utilities) to make this possible, other apparent dependencies turned out to be vacuous. + In gf.cabal, the GF executable no longer directly depends on the PGF library source directory, but only on the exposed library modules. This means that there is less duplication in gf.cabal and that the 30 modules in the PGF library will no longer be compiled twice while building GF. To make this possible, additional PGF library modules have been exposed, even though they should probably be considered for internal use only. They could be collected in a PGF.Internal module, or marked as "unstable", to make this explicit. + Also, by using the -fwarn-unused-imports flag, ~220 redundant imports were found and removed, reducing the total number of imports by ~15%.
99 lines
3.3 KiB
Haskell
99 lines
3.3 KiB
Haskell
----------------------------------------------------------------------
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-- |
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-- Module : GetGrammar
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-- Maintainer : AR
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-- Stability : (stable)
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-- Portability : (portable)
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--
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-- > CVS $Date: 2005/11/15 17:56:13 $
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-- > CVS $Author: aarne $
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-- > CVS $Revision: 1.16 $
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--
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-- this module builds the internal GF grammar that is sent to the type checker
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-----------------------------------------------------------------------------
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module GF.Compile.GetGrammar (getSourceModule) where
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import Prelude hiding (catch)
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import GF.Data.Operations
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import GF.System.Catch
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import GF.Infra.UseIO
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import GF.Infra.Option(Options,optPreprocessors,addOptions,flag)
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import GF.Grammar.Lexer
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import GF.Grammar.Parser
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import GF.Grammar.Grammar
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--import GF.Compile.ReadFiles
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--import Data.Char (toUpper)
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import qualified Data.ByteString.Char8 as BS
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import Control.Monad (foldM)
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import System.Cmd (system)
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import System.Directory(removeFile)
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getSourceModule :: Options -> FilePath -> IOE SourceModule
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getSourceModule opts file0 = ioe $
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do tmp <- foldM runPreprocessor (Source file0) (flag optPreprocessors opts)
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content <- keepTemp tmp
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case runP pModDef content of
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Left (Pn l c,msg) -> do file <- writeTemp tmp
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let location = file++":"++show l++":"++show c
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return (Bad (location++":\n "++msg))
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Right (i,mi) -> do removeTemp tmp
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return (Ok (i,mi{mflags=mflags mi `addOptions` opts, msrc=file0}))
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`catch` (return . Bad . show)
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runPreprocessor :: Temporary -> String -> IO Temporary
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runPreprocessor tmp0 p =
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maybe external internal (lookup p builtin_preprocessors)
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where
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internal preproc = (Internal . preproc) `fmap` readTemp tmp0
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external =
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do file0 <- writeTemp tmp0
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-- FIXME: should use System.IO.openTempFile
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let file1a = "_gf_preproc.tmp"
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file1b = "_gf_preproc2.tmp"
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-- file0 and file1 must be different
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file1 = if file0==file1a then file1b else file1a
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cmd = p +++ file0 ++ ">" ++ file1
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system cmd
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return (Temp file1)
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--------------------------------------------------------------------------------
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builtin_preprocessors = [("mkPresent",mkPresent),("mkMinimal",mkMinimal)]
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mkPresent = omit_lines "--# notpresent" -- grep -v "\-\-\# notpresent"
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mkMinimal = omit_lines "--# notminimal" -- grep -v "\-\-\# notminimal"
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omit_lines s = BS.unlines . filter (not . BS.isInfixOf bs) . BS.lines
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where bs = BS.pack s
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--------------------------------------------------------------------------------
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data Temporary = Source FilePath | Temp FilePath | Internal BS.ByteString
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writeTemp tmp =
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case tmp of
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Source path -> return path
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Temp path -> return path
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Internal str -> do -- FIXME: should use System.IO.openTempFile
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let tmp = "_gf_preproc.tmp"
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BS.writeFile tmp str
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return tmp
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readTemp tmp = do str <- keepTemp tmp
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removeTemp tmp
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return str
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keepTemp tmp =
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case tmp of
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Source path -> BS.readFile path
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Temp path -> BS.readFile path
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Internal str -> return str
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removeTemp (Temp path) = removeFile path
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removeTemp _ = return ()
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