Language.C.System.Preprocess

Invoking external preprocessors.

Documentation

class Preprocessor cpp where

Preprocessor encapsulates the abstract interface for invoking C preprocessors

Minimal complete definition

parseCPPArgs, runCPP

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

Methods

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

runCPP :: GCC -> CppArgs -> IO ExitCode

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

cppFile :: FilePath -> CppArgs

Cpp arguments that only specify the input file name.

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)