yi (empty) → 0.2
raw patch · 7 files changed
+693/−0 lines, 7 filesdep +basedep +ghcdep +mtlbuild-type:Customsetup-changed
Dependencies added: base, ghc, mtl, regex-posix
Files
- LICENSE +369/−0
- Main.hs +49/−0
- Setup.hs +42/−0
- Yi/Boot.hs +93/−0
- Yi/Debug.hs +58/−0
- Yi/Kernel.hs +57/−0
- yi.cabal +25/−0
+ LICENSE view
@@ -0,0 +1,369 @@+ GNU GENERAL PUBLIC LICENSE+ Version 2, June 1991++ Copyright (C) 1989, 1991 Free Software Foundation, Inc.+ 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA+ Everyone is permitted to copy and distribute verbatim copies+ of this license document, but changing it is not allowed.++ Preamble++ The licenses for most software are designed to take away your+freedom to share and change it. By contrast, the GNU General Public+License is intended to guarantee your freedom to share and change free+software--to make sure the software is free for all its users. This+General Public License applies to most of the Free Software+Foundation's software and to any other program whose authors commit to+using it. (Some other Free Software Foundation software is covered by+the GNU Library General Public License instead.) You can apply it to+your programs, too.++ When we speak of free software, we are referring to freedom, not+price. Our General Public Licenses are designed to make sure that you+have the freedom to distribute copies of free software (and charge for+this service if you wish), that you receive source code or can get it+if you want it, that you can change the software or use pieces of it+in new free programs; and that you know you can do these things.++ To protect your rights, we need to make restrictions that forbid+anyone to deny you these rights or to ask you to surrender the rights.+These restrictions translate to certain responsibilities for you if you+distribute copies of the software, or if you modify it.++ For example, if you distribute copies of such a program, whether+gratis or for a fee, you must give the recipients all the rights that+you have. You must make sure that they, too, receive or can get the+source code. 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To prevent this, we have made it clear that any+patent must be licensed for everyone's free use or not licensed at all.++ The precise terms and conditions for copying, distribution and+modification follow.++ GNU GENERAL PUBLIC LICENSE+ TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION++ 0. This License applies to any program or other work which contains+a notice placed by the copyright holder saying it may be distributed+under the terms of this General Public License. The "Program", below,+refers to any such program or work, and a "work based on the Program"+means either the Program or any derivative work under copyright law:+that is to say, a work containing the Program or a portion of it,+either verbatim or with modifications and/or translated into another+language. (Hereinafter, translation is included without limitation in+the term "modification".) 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It is safest+to attach them to the start of each source file to most effectively+convey the exclusion of warranty; and each file should have at least+the "copyright" line and a pointer to where the full notice is found.++ <one line to give the program's name and a brief idea of what it does.>+ Copyright (C) <year> <name of author>++ This program is free software; you can redistribute it and/or modify+ it under the terms of the GNU General Public License as published by+ the Free Software Foundation; either version 2 of the License, or+ (at your option) any later version.++ This program is distributed in the hope that it will be useful,+ but WITHOUT ANY WARRANTY; without even the implied warranty of+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the+ GNU General Public License for more details.++ You should have received a copy of the GNU General Public License+ along with this program; if not, write to the Free Software+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA+++Also add information on how to contact you by electronic and paper mail.++If the program is interactive, make it output a short notice like this+when it starts in an interactive mode:++ Gnomovision version 69, Copyright (C) year name of author+ Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.+ This is free software, and you are welcome to redistribute it+ under certain conditions; type `show c' for details.++The hypothetical commands `show w' and `show c' should show the appropriate+parts of the General Public License. Of course, the commands you use may+be called something other than `show w' and `show c'; they could even be+mouse-clicks or menu items--whatever suits your program.++You should also get your employer (if you work as a programmer) or your+school, if any, to sign a "copyright disclaimer" for the program, if+necessary. Here is a sample; alter the names:++ Yoyodyne, Inc., hereby disclaims all copyright interest in the program+ `Gnomovision' (which makes passes at compilers) written by James Hacker.++ <signature of Ty Coon>, 1 April 1989+ Ty Coon, President of Vice++This General Public License does not permit incorporating your program into+proprietary programs. If your program is a subroutine library, you may+consider it more useful to permit linking proprietary applications with the+library. If this is what you want to do, use the GNU Library General+Public License instead of this License.++------------------------------------------------------------------------++The ncurses binding was originally written by John Meacham, and is+available under the license:++Unless otherwise stated the following licence applies:++Copyright (c) 2002-2004 John Meacham (john at repetae dot net)++Permission is hereby granted, free of charge, to any person obtaining a+copy of this software and associated documentation files (the+"Software"), to deal in the Software without restriction, including+without limitation the rights to use, copy, modify, merge, publish,+distribute, sublicense, and/or sell copies of the Software, and to+permit persons to whom the Software is furnished to do so, subject to+the following conditions:++The above copyright notice and this permission notice shall be included+in all copies or substantial portions of the Software.++THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.+
+ Main.hs view
@@ -0,0 +1,49 @@+--+-- Copyright (C) 2004 Don Stewart - http://www.cse.unsw.edu.au/~dons+--+-- This program is free software; you can redistribute it and/or+-- modify it under the terms of the GNU General Public License as+-- published by the Free Software Foundation; either version 2 of+-- the License, or (at your option) any later version.+--+-- This program is distributed in the hope that it will be useful,+-- but WITHOUT ANY WARRANTY; without even the implied warranty of+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU+-- General Public License for more details.+--+-- You should have received a copy of the GNU General Public License+-- along with this program; if not, write to the Free Software+-- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA+-- 02111-1307, USA.+--++--+-- | Frontend to the static binary. We have a separte frontend (rather+-- than putting main in Yi.hs) so we don't get ZCMain_main_* symbols+-- in -package yi, which lets us have multiple frontends, and load+-- them all in ghci.+--+module Main ( main ) where++import Yi.Boot+import Yi.Debug++main :: IO ()+main = do+ initDebug ".yi-static.dbg"+ kernel <- initialize+ Yi.Boot.startYi kernel -- call Yi.main dynamically+ ++++{-+import qualified Yi ++main :: IO ()+main = do+ initDebug ".yi-static.dbg"+ kernel <- initialize+ Yi.main kernel+ +-}
+ Setup.hs view
@@ -0,0 +1,42 @@+#!/usr/bin/env runhaskell+module Main where++import Distribution.Simple+import Distribution.Setup+import Distribution.PackageDescription+import Distribution.Simple.LocalBuildInfo+import System.Info+import System.Process+import Data.List+import System.IO+import System.Exit+import Data.Maybe++main :: IO ()+main = defaultMainWithHooks defaultUserHooks+ { postConf = pC, preBuild = setConfigInfo }++pC :: Args -> ConfigFlags -> PackageDescription -> LocalBuildInfo -> IO ExitCode+pC args a b lbi = do+ fmap (const ()) $ (postConf defaultUserHooks) args a b lbi -- call default function (necessary ?)+ getLibDir (compilerPath . compiler $ lbi) >>= \libdir ->+ writeFile ".libdir" libdir+ return $ ExitSuccess+ where getLibDir ghcPath = do + (_, out, _, pid) <- runInteractiveProcess ghcPath ["--print-libdir"]+ Nothing Nothing+ libDir <- hGetLine out+ waitForProcess pid+ return libDir++setConfigInfo args _+ = readFile ".libdir" >>= \libdir ->+ return+ (Nothing,+ [("yi", emptyBuildInfo+ { options = [(GHC,[mkOpt ("GHC_LIBDIR",show libdir)])] })])+ where mkOpt (name,def) = "-D"++name++"="++def++-- Marc Weber: I don't like this patch because it's using the .libdir+-- file to store the libdir. There must be a better way but I don't+-- want to spend more time on this.
+ Yi/Boot.hs view
@@ -0,0 +1,93 @@+module Yi.Boot where++import Yi.Debug hiding (error)+import Yi.Kernel++import System.Directory ( getHomeDirectory )++import qualified GHC+import qualified Packages+import qualified DynFlags+import qualified Module+import Outputable+import Control.Monad++import GHC.Exts ( unsafeCoerce# )+++-- the path of our GHC installation+path :: FilePath+path = GHC_LIBDIR -- See Setup.hs++-- | Create a suitable Yi Kernel, via a GHC session.+initialize :: IO Kernel+initialize = GHC.defaultErrorHandler DynFlags.defaultDynFlags $ do+ session <- GHC.newSession GHC.Interactive (Just path)+ dflags1 <- GHC.getSessionDynFlags session++ home <- getHomeDirectory+ (dflags1',_otherFlags) <- GHC.parseDynamicFlags dflags1 [+ "-package ghc", "-fglasgow-exts", "-cpp", + "-i", -- clear the search directory (don't look in ./)+ "-i" ++ home ++ "/.yi" -- We look for source files in ~/.yi+-- ,"-v"+ ]+ (dflags2, packageIds) <- Packages.initPackages dflags1'+ logPutStrLn $ "packagesIds: " ++ (showSDocDump $ ppr $ packageIds)+ GHC.setSessionDynFlags session dflags2{GHC.hscTarget=GHC.HscInterpreted}+ return Kernel { + getSessionDynFlags = GHC.getSessionDynFlags session,+ setSessionDynFlags = GHC.setSessionDynFlags session,+ compileExpr = GHC.compileExpr session,+ loadAllTargets = GHC.load session GHC.LoadAllTargets,+ setTargets = GHC.setTargets session,+ guessTarget = GHC.guessTarget,+ findModule = \s -> GHC.findModule session (GHC.mkModuleName s) Nothing,+ setContext = GHC.setContext session,+ setContextAfterLoad = setContextAfterLoadL session,+ getNamesInScope = GHC.getNamesInScope session,+ getRdrNamesInScope = GHC.getRdrNamesInScope session,+ nameToString = Outputable.showSDoc . Outputable.ppr,+ isLoaded = GHC.isLoaded session,+ mkModuleName = Module.mkModuleName,+ getModuleGraph = GHC.getModuleGraph session+ }+++-- | Dynamically start Yi. +startYi :: Kernel -> IO ()+startYi kernel = GHC.defaultErrorHandler DynFlags.defaultDynFlags $ do+ result <- compileExpr kernel ("Yi.main :: Yi.Kernel -> Prelude.IO ()") + -- coerce the interpreted expression, so we check that we are not making an horrible mistake.+ logPutStrLn "Starting Yi!"+ case result of+ Nothing -> error "Could not compile Yi.main!"+ Just x -> do let (x' :: Kernel -> IO ()) = unsafeCoerce# x+ x' kernel+ return ()++setContextAfterLoadL :: GHC.Session -> IO [GHC.Module]+setContextAfterLoadL session = do+ preludeModule <- GHC.findModule session (GHC.mkModuleName "Prelude") Nothing+ yiModule <- GHC.findModule session (GHC.mkModuleName "Yi.Yi") Nothing -- this module re-exports all useful stuff.+ graph <- GHC.getModuleGraph session+ graph' <- filterM (GHC.isLoaded session . GHC.ms_mod_name) graph+ targets <- GHC.getTargets session+ let targets' = [ m | Just m <- map (findTarget graph') targets ]+ modules = map GHC.ms_mod targets'+ context = preludeModule:yiModule:modules+ GHC.setContext session [] context+ return context+ where+ findTarget ms t+ = case filter (`matches` t) ms of+ [] -> Nothing+ (m:_) -> Just m++ summary `matches` GHC.Target (GHC.TargetModule m) _+ = GHC.ms_mod_name summary == m+ summary `matches` GHC.Target (GHC.TargetFile f _) _ + | Just f' <- GHC.ml_hs_file (GHC.ms_location summary) = f == f'+ _summary `matches` _target+ = False+
+ Yi/Debug.hs view
@@ -0,0 +1,58 @@+module Yi.Debug (+ initDebug -- :: FilePath -> IO () + ,trace -- :: String -> a -> a+ ,logPutStrLn+ ,logError+ ,logStream+ ,Yi.Debug.error+ ) where++import Control.Concurrent+import Data.IORef+import System.IO +import System.IO.Unsafe ( unsafePerformIO )+import System.Time++dbgHandle :: IORef Handle+dbgHandle = unsafePerformIO $ newIORef stderr++-- Set the file to which debugging output should be written. Though this+-- is called /init/Debug. This function should be called at most once. +-- Debugging output is sent to stderr by default (i.e., if this function+-- is never called.+initDebug :: FilePath -> IO ()+initDebug f = do + openFile f WriteMode >>= writeIORef dbgHandle+ logPutStrLn "Logging initialized."++-- Outputs the given string before returning the second argument.+trace :: String -> a -> a+trace s e = unsafePerformIO $ do logPutStrLn s+ return e+{-# NOINLINE trace #-}+++error :: String -> a+error s = unsafePerformIO $ do logPutStrLn s+ Prelude.error s++logPutStrLn :: String -> IO ()+logPutStrLn s = do time <- toCalendarTime =<< getClockTime+ tId <- myThreadId+ h <- readIORef dbgHandle+ hPutStrLn h $ calendarTimeToString time ++ " " ++ show tId ++ " " ++ s+ hFlush h++logError :: String -> IO ()+logError s = logPutStrLn $ "error: " ++ s++logStream :: Show a => String -> Chan a -> IO ()+logStream msg ch = do+ logPutStrLn $ "Logging stream " ++ msg+ forkIO $ logStreamThread msg ch+ return ()++logStreamThread :: Show a => String -> Chan a -> IO ()+logStreamThread msg ch = do+ stream <- getChanContents =<< dupChan ch+ mapM_ logPutStrLn [msg ++ "(" ++ show i ++ ")" ++ show event | event <- stream | i <- [(0::Int)..] ]
+ Yi/Kernel.hs view
@@ -0,0 +1,57 @@+++-- | This module is the interface to GHC (interpreter). It knows+-- nothing about Yi (at the haskell level; it can know names of+-- modules or functions as strings)++module Yi.Kernel (Kernel(..), eval, moduleName, moduleNameString, ms_mod_name) where++import Control.Monad+import Outputable+import qualified GHC+import qualified Linker+import qualified Module+import qualified Packages++-- | GHC API Kernel. +-- Calls to the GHC API must go though this type. (Because of the use "global variables" in GHC I imagine)+-- ie. the simpler approach of passing just the GHC session does not work.++data Kernel = Kernel+ {+ getSessionDynFlags :: IO GHC.DynFlags,+ setSessionDynFlags :: GHC.DynFlags -> IO [Packages.PackageId],+ compileExpr :: String -> IO (Maybe GHC.HValue),+ guessTarget :: String -> Maybe GHC.Phase -> IO GHC.Target,+ setTargets :: [GHC.Target] -> IO (),+ loadAllTargets :: IO GHC.SuccessFlag,+ findModule :: String -> IO GHC.Module,+ setContext :: [GHC.Module] -- ^ entire top level scope of these modules+ -> [GHC.Module] -- ^ exports only of these modules+ -> IO (),+ setContextAfterLoad :: IO [GHC.Module],+ getNamesInScope :: IO [GHC.Name],+ getRdrNamesInScope :: IO [GHC.RdrName],+ mkModuleName :: String -> GHC.ModuleName,+ isLoaded :: GHC.ModuleName -> IO Bool,+ nameToString :: forall a. Outputable a => a -> String,+ getModuleGraph :: IO GHC.ModuleGraph+ }++-- | Dynamic evaluation+eval :: Kernel -> String -> IO GHC.HValue+eval kernel expr = do+ result <- compileExpr kernel expr+ case result of+ Nothing -> error $ "Could not compile expr: " ++ expr+ Just x -> return x++ +moduleName :: GHC.Module -> GHC.ModuleName+moduleName = Module.moduleName++moduleNameString :: GHC.ModuleName -> String+moduleNameString = Module.moduleNameString++ms_mod_name :: GHC.ModSummary -> GHC.ModuleName+ms_mod_name = GHC.ms_mod_name
+ yi.cabal view
@@ -0,0 +1,25 @@+name: yi+version: 0.2+category: Editor+synopsis: The Haskell-Scriptable Editor+description:+ Yi is a text editor written and extensible in Haskell. The goal of Yi is+ to provide a flexible, powerful and correct editor core dynamically+ scriptable in Haskell.+ Note that you will need either yi-gtk or yi-vty to actually run Yi.+license: GPL+license-file: LICENSE+author: Don Stewart+maintainer: dons@cse.unsw.edu.au+build-depends: ghc>=6.6, base, mtl, regex-posix++executable: yi+main-is: Main.hs+other-modules: + Yi.Boot+ Yi.Debug+ Yi.Kernel+extensions: CPP+ghc-options: -Wall -fglasgow-exts -O -funbox-strict-fields -fasm -optl-Wl,-s++