changed names of resource-1.3; added a note on homepage on release

src/GF/Compile.hs

@@ -0,0 +1,226 @@
+module GF.Compile (batchCompile, link, compileToPGF, compileSourceGrammar) where
+
+-- the main compiler passes
+import GF.Compile.GetGrammar
+import GF.Compile.Extend
+import GF.Compile.Rebuild
+import GF.Compile.Rename
+import GF.Compile.CheckGrammar
+import GF.Compile.Optimize
+import GF.Compile.OptimizeGF
+import GF.Compile.OptimizeGFCC
+import GF.Compile.GrammarToGFCC
+import GF.Compile.ReadFiles
+import GF.Compile.Update
+import GF.Compile.Refresh
+
+import GF.Grammar.Grammar
+import GF.Grammar.Lookup
+import GF.Grammar.PrGrammar
+
+import GF.Infra.Ident
+import GF.Infra.Option
+import GF.Infra.Modules
+import GF.Infra.UseIO
+
+import GF.Source.GrammarToSource
+import qualified GF.Source.AbsGF as A
+import qualified GF.Source.PrintGF as P
+
+import GF.Data.Operations
+
+import Control.Monad
+import System.Directory
+import System.FilePath
+import System.Time
+import qualified Data.Map as Map
+import qualified Data.Set as Set
+
+import PGF.Check
+import PGF.Data
+
+
+-- | Compiles a number of source files and builds a 'PGF' structure for them.
+compileToPGF :: Options -> [FilePath] -> IOE PGF
+compileToPGF opts fs =
+    do gr <- batchCompile opts fs
+       let name = justModuleName (last fs)
+       link opts name gr
+
+link :: Options -> String -> SourceGrammar -> IOE PGF
+link opts cnc gr =
+    do gc1 <- putPointE Normal opts "linking ... " $
+                let (abs,gc0) = mkCanon2gfcc opts cnc gr
+                in case checkPGF gc0 of
+		     Ok (gc,b) -> do 
+		       ioeIO $ putStrLn $ if b then "OK" else "Corrupted PGF"
+		       return gc
+		     Bad s -> fail s
+       return $ buildParser opts $ optimize opts gc1
+
+optimize :: Options -> PGF -> PGF
+optimize opts = cse . suf
+  where os  = moduleFlag optOptimizations opts
+        cse = if OptCSE  `Set.member` os then cseOptimize    else id
+        suf = if OptStem `Set.member` os then suffixOptimize else id
+
+buildParser :: Options -> PGF -> PGF
+buildParser opts = 
+    if moduleFlag optBuildParser opts then addParsers else id
+
+batchCompile :: Options -> [FilePath] -> IOE SourceGrammar
+batchCompile opts files = do
+  (_,gr,_) <- foldM (compileModule opts) emptyCompileEnv files
+  return gr
+
+-- to compile a set of modules, e.g. an old GF or a .cf file
+compileSourceGrammar :: Options -> SourceGrammar -> IOE SourceGrammar
+compileSourceGrammar opts gr@(MGrammar ms) = do
+  (_,gr',_) <- foldM compOne (0,emptySourceGrammar,Map.empty) ms
+  return gr'
+ where
+  compOne env mo = do
+    (k,mo') <- compileSourceModule opts env mo
+    extendCompileEnvInt env k Nothing mo'    --- file for the same of modif time...
+
+-- to output an intermediate stage
+intermOut :: Options -> Dump -> String -> IOE ()
+intermOut opts d s = if dump opts d then 
+  ioeIO (putStrLn ("\n\n--#" +++ show d) >> putStrLn s) 
+  else return ()
+
+
+-- | the environment
+type CompileEnv = (Int,SourceGrammar,ModEnv)
+
+-- | compile with one module as starting point
+-- command-line options override options (marked by --#) in the file
+-- As for path: if it is read from file, the file path is prepended to each name.
+-- If from command line, it is used as it is.
+
+compileModule :: Options -- ^ Options from program command line and shell command.
+              -> CompileEnv -> FilePath -> IOE CompileEnv
+compileModule opts1 env file = do
+  opts0 <- getOptionsFromFile file
+  let opts = addOptions opts0 opts1
+  let fdir = dropFileName file
+  let ps0 = moduleFlag optLibraryPath opts
+  ps2 <- ioeIO $ extendPathEnv $ fdir : ps0
+  let ps = ps2 ++ map (fdir </>) ps0
+  ioeIO $ putIfVerb opts $ "module search path:" +++ show ps ----
+  let (_,sgr,rfs) = env
+  files <- getAllFiles opts ps rfs file
+  ioeIO $ putIfVerb opts $ "files to read:" +++ show files ----
+  let names = map justModuleName files
+  ioeIO $ putIfVerb opts $ "modules to include:" +++ show names ----
+  foldM (compileOne opts) (0,sgr,rfs) files
+
+compileOne :: Options -> CompileEnv -> FullPath -> IOE CompileEnv
+compileOne opts env@(_,srcgr,_) file = do
+
+  let putpOpt v m act
+       | verbAtLeast opts Verbose = putPointE Normal opts v act
+       | verbAtLeast opts Normal  = ioeIO (putStrFlush m) >> act
+       | otherwise                = putPointE Verbose opts v act
+
+  let gf   = takeExtensions file
+  let path = dropFileName file
+  let name = dropExtension file
+  let mos  = modules srcgr
+
+  case gf of
+
+    -- for compiled gf, read the file and update environment
+    -- also undo common subexp optimization, to enable normal computations
+    ".gfo" -> do
+       sm0 <- putPointE Normal opts ("+ reading" +++ file) $ getSourceModule opts file
+       let sm1 = unsubexpModule sm0
+       sm <- {- putPointE Normal opts "creating indirections" $ -} ioeErr $ extendModule mos sm1
+       
+       extendCompileEnv env file sm
+
+    -- for gf source, do full compilation and generate code
+    _ -> do
+
+      let gfo = gfoFile (dropExtension file)
+      b1 <- ioeIO $ doesFileExist file
+      if not b1
+        then compileOne opts env $ gfo
+        else do
+
+       sm0 <- putpOpt ("- parsing" +++ file) ("- compiling" +++ file ++ "... ") $ 
+                                           getSourceModule opts file
+       (k',sm)  <- compileSourceModule opts env sm0
+       let sm1 = if isConcr sm then shareModule sm else sm -- cannot expand Str
+       cm  <- putPointE Verbose opts "  generating code... " $ generateModuleCode opts gfo sm1
+          -- sm is optimized before generation, but not in the env
+       extendCompileEnvInt env k' (Just gfo) sm1
+  where
+   isConcr (_,mi) = case mi of
+     ModMod m -> isModCnc m && mstatus m /= MSIncomplete 
+     _ -> False
+
+
+compileSourceModule :: Options -> CompileEnv -> 
+                       SourceModule -> IOE (Int,SourceModule)
+compileSourceModule opts env@(k,gr,_) mo@(i,mi) = do
+
+  let putp  = putPointE Normal opts
+      putpp = putPointE Verbose opts
+      mos   = modules gr
+
+  mo1   <- ioeErr $ rebuildModule mos mo
+  intermOut opts DumpRebuild (prModule mo1)
+
+  mo1b  <- ioeErr $ extendModule mos mo1
+  intermOut opts DumpExtend (prModule mo1b)
+
+  case mo1b of
+    (_,ModMod n) | not (isCompleteModule n) -> do
+      return (k,mo1b)   -- refresh would fail, since not renamed
+    _ -> do
+      mo2:_ <- putpp "  renaming " $ ioeErr $ renameModule mos mo1b
+      intermOut opts DumpRename (prModule mo2)
+
+      (mo3:_,warnings) <- putpp "  type checking" $ ioeErr $ showCheckModule mos mo2
+      if null warnings then return () else putp warnings $ return ()
+      intermOut opts DumpTypeCheck (prModule mo3)
+
+      (k',mo3r:_) <- putpp "  refreshing " $ ioeErr $ refreshModule (k,mos) mo3
+      intermOut opts DumpRefresh (prModule mo3r)
+
+      let eenv = () --- emptyEEnv
+      (mo4,eenv') <- 
+        ---- if oElem "check_only" opts 
+          putpp "  optimizing " $ ioeErr $ optimizeModule opts (mos,eenv) mo3r
+      return (k',mo4)
+ where
+   ----   prDebug mo = ioeIO $ putStrLn $ prGrammar $ MGrammar [mo] ---- debug
+   prDebug mo = ioeIO $ print $ length $ lines $ prGrammar $ MGrammar [mo]
+
+generateModuleCode :: Options -> FilePath -> SourceModule -> IOE SourceModule
+generateModuleCode opts file minfo = do
+  let minfo1 = subexpModule minfo
+      out    = prGrammar (MGrammar [minfo1])
+  putPointE Normal opts ("  wrote file" +++ file) $ ioeIO $ writeFile file $ out
+  return minfo1
+
+-- auxiliaries
+
+reverseModules (MGrammar ms) = MGrammar $ reverse ms
+
+emptyCompileEnv :: CompileEnv
+emptyCompileEnv = (0,emptyMGrammar,Map.empty)
+
+extendCompileEnvInt (_,MGrammar ss,menv) k mfile sm = do
+  let (mod,imps) = importsOfModule (trModule sm)
+  menv2 <- case mfile of
+    Just file -> do
+      t <- ioeIO $ getModificationTime file
+      return $ Map.insert mod (t,imps) menv
+    _ -> return menv
+  return (k,MGrammar (sm:ss),menv2) --- reverse later
+
+extendCompileEnv e@(k,_,_) file sm = extendCompileEnvInt e k (Just file) sm
+
+