language-c-0.3.2.1: Analysis and generation of C code

Portability | portable
Stability | experimental
Maintainer | benedikt.huber@gmail.com
Safe Haskell | None

Language.C.System.Preprocess

Description

Invoking external preprocessors.

Synopsis

- class Preprocessor cpp where
  - parseCPPArgs :: cpp -> [String] -> Either String (CppArgs, [String])
  - runCPP :: cpp -> CppArgs -> IO ExitCode
- data CppOption
  - = IncludeDir FilePath
  - | Define String String
  - | Undefine String
  - | IncludeFile FilePath
- data CppArgs = CppArgs {
  - cppOptions :: [CppOption]
  - extraOptions :: [String]
  - cppTmpDir :: Maybe FilePath
  - inputFile :: FilePath
  - outputFile :: Maybe FilePath
  }
- rawCppArgs :: [String] -> FilePath -> CppArgs
- addCppOption :: CppArgs -> CppOption -> CppArgs
- addExtraOption :: CppArgs -> String -> CppArgs
- runPreprocessor :: Preprocessor cpp => cpp -> CppArgs -> IO (Either ExitCode InputStream)
- isPreprocessed :: FilePath -> Bool

# Documentation

class Preprocessor cpp where

`Preprocessor` encapsulates the abstract interface for invoking C preprocessors

Methods

parseCPPArgs :: cpp -> [String] -> Either String (CppArgs, [String])

parse the given command line arguments, and return a pair of parsed and ignored arguments

runCPP :: cpp -> CppArgs -> IO ExitCode

run the preprocessor

Instances

Preprocessor GCC |

data CppOption

Generic Options for the preprocessor

Constructors

IncludeDir FilePath |
Define String String |
Undefine String |
IncludeFile FilePath |

data CppArgs

Generic arguments for the preprocessor

Constructors

CppArgs |
Fields cppOptions :: [CppOption] extraOptions :: [String] cppTmpDir :: Maybe FilePath inputFile :: FilePath outputFile :: Maybe FilePath

rawCppArgs :: [String] -> FilePath -> CppArgs

use the given preprocessor arguments without analyzing them

addCppOption :: CppArgs -> CppOption -> CppArgs

add a typed option to the given preprocessor arguments

addExtraOption :: CppArgs -> String -> CppArgs

add a string option to the given preprocessor arguments

runPreprocessor :: Preprocessor cpp => cpp -> CppArgs -> IO (Either ExitCode InputStream)

run the preprocessor and return an `InputStream` if preprocesssing succeeded

isPreprocessed :: FilePath -> Bool

guess whether a file is preprocessed (file end with .i)