Copyright	2000-2004 Malcolm Wallace
License	LGPL
Maintainer	Malcolm Wallace <Malcolm.Wallace@cs.york.ac.uk>
Stability	experimental
Portability	All
Safe Haskell	Safe-Inferred
Language	Haskell98

Language.Preprocessor.Cpphs.Position

Description

Simple file position information, with recursive inclusion points.

Synopsis

Documentation

data Posn #

Source positions contain a filename, line, column, and an inclusion point, which is itself another source position, recursively.

Constructors

Pn String !Int !Int (Maybe Posn)

Instances details

Eq Posn #
Instance details Defined in Language.Preprocessor.Cpphs.Position Methods (==) :: Posn -> Posn -> Bool (/=) :: Posn -> Posn -> Bool
Show Posn #
Instance details Defined in Language.Preprocessor.Cpphs.Position Methods showsPrec :: Int -> Posn -> ShowS show :: Posn -> String showList :: [Posn] -> ShowS

newfile :: String -> Posn #

Constructor. Argument is filename.

addcol :: Int -> Posn -> Posn #

Increment column number by given quantity.

Increment row number, reset column to 1.

Increment column number, tab stops are every 8 chars.

Increment row number by given quantity.

newpos :: Int -> Maybe String -> Posn -> Posn #

Update position with a new row, and possible filename.

cppline :: Posn -> String #

cpp-style printing of file position

haskline :: Posn -> String #

haskell-style printing of file position

cpp2hask :: String -> String #

Conversion from a cpp-style "#line" to haskell-style pragma.

filename :: Posn -> String #

Project the filename.

lineno :: Posn -> Int #

Project the line number.

directory :: Posn -> FilePath #

Project the directory of the filename.

cleanPath :: FilePath -> FilePath #

Sigh. Mixing Windows filepaths with unix is bad. Make sure there is a canonical path separator.