hsb2hs (empty) → 0.1

raw patch · 4 files changed

+118/−0 lines, 4 filesdep +basedep +bytestringdep +containerssetup-changed

Dependencies added: base, bytestring, containers, directory, filepath, preprocessor-tools

Files

• LICENSE +30/−0
• Setup.lhs +3/−0
• hsb2hs.cabal +25/−0
• hsb2hs.hs +60/−0

@@ -0,0 +1,30 @@+Copyright (c)2010, John MacFarlane++All rights reserved.++Redistribution and use in source and binary forms, with or without+modification, are permitted provided that the following conditions are met:++    * Redistributions of source code must retain the above copyright+      notice, this list of conditions and the following disclaimer.++    * Redistributions in binary form must reproduce the above+      copyright notice, this list of conditions and the following+      disclaimer in the documentation and/or other materials provided+      with the distribution.++    * Neither the name of John MacFarlane nor the names of other+      contributors may be used to endorse or promote products derived+      from this software without specific prior written permission.++THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

@@ -0,0 +1,3 @@+#!/usr/bin/env runhaskell+> import Distribution.Simple+> main = defaultMain

@@ -0,0 +1,25 @@+Name:         hsb2hs+Version:      0.1+Synopsis:     Preprocesses a file, adding blobs from files as string literals.+Description:+    hsb2hs is a preprocessor that allows you to include the contents of+    files as string literals in your Haskell programs and libraries.+    It is an alternative to file-embed for those who do not want to rely+    on Template Haskell.  See @README.markdown@ for instructions.++License:      BSD3+License-file: LICENSE+Author:       John MacFarlane+Maintainer:   jgm@berkeley.edu+Copyright:    Copyright (C) 2013 John MacFarlane+Category:     Development+Cabal-version:  >=1.6+Build-type:   Simple+Source-repository head+  type:              git+  location:          git://github.com/jgm/hsb2hs.git+Executable hsb2hs+    Main-is: hsb2hs.hs+    Ghc-Options: -Wall+    Build-depends: base >= 4 && < 5, containers, bytestring, directory,+                   filepath, preprocessor-tools > 0.1 && < 0.2

@@ -0,0 +1,60 @@+module Main+where+import Language.Haskell.Preprocessor+import System.IO.Unsafe (unsafePerformIO)++import qualified Data.ByteString as B+import System.Directory+import System.Environment (getArgs)+import Control.Arrow ((&&&), second)+import Control.Applicative ((<$>))+import Control.Monad+import System.FilePath++main :: IO ()+main = do+  args <- getArgs+  transform blobExtension args++blobExtension :: Extension+blobExtension = base{+    transformer = processBlobs+}++processBlobs :: [Ast] -> [Ast]+processBlobs [] = []+processBlobs (Single (Token Operator _ l "%") :+              Single (Token Variable _ _ kw) :+              Single (Token StringLit _ _ lit) :+              xs) | kw == "blobs" || kw == "blob" =+  (Single (Token StringLit [] l (getLiteral $ stripQuotes lit))) :+     processBlobs xs+   where stripQuotes = reverse . stripLeadingQuote . reverse . stripLeadingQuote+         stripLeadingQuote ('"':ys) = ys+         stripLeadingQuote ys = ys+         getLiteral f = unsafePerformIO $ if kw == "blob"+                                             then show `fmap` B.readFile f+                                             else show `fmap` fileList' f ""+processBlobs (x:xs) =+  (case x of+      Single tok -> Single tok+      Block i l b r n -> Block i l (processBlobs b) r n+      Empty      -> Empty) : processBlobs xs++-- fileList' is taken from Michael Snoyman's file-embed+fileList' :: FilePath -> FilePath -> IO [(FilePath, B.ByteString)]+fileList' realTop top = do+    allContents <- filter notHidden <$> getDirectoryContents (realTop </> top)+    let all' = map ((top </>) &&& (\x -> realTop </> top </> x)) allContents+    files <- filterM (doesFileExist . snd) all' >>=+             mapM (liftPair2 . second B.readFile)+    dirs <- filterM (doesDirectoryExist . snd) all' >>=+            mapM (fileList' realTop . fst)+    return $ concat $ files : dirs++notHidden :: FilePath -> Bool+notHidden ('.':_) = False+notHidden _ = True++liftPair2 :: Monad m => (a, m b) -> m (a, b)+liftPair2 (a, b) = b >>= \b' -> return (a, b')