Cabal-3.2.1.0: A framework for packaging Haskell software
Copyright Isaac Jones 2003-2005
License BSD3
Maintainer cabal-devel@haskell.org
Portability portable
Safe Haskell None
Language Haskell2010

Distribution.PackageDescription.Parsec

Description

This defined parsers and partial pretty printers for the .cabal format.

Synopsis

Package descriptions

parseGenericPackageDescription :: ByteString -> ParseResult GenericPackageDescription Source #

Parses the given file into a GenericPackageDescription .

In Cabal 1.2 the syntax for package descriptions was changed to a format with sections and possibly indented property descriptions.

Parsing

runParseResult :: ParseResult a -> ([ PWarning ], Either ( Maybe Version , NonEmpty PError ) a) Source #

Destruct a ParseResult into the emitted warnings and either a successful value or list of errors and possibly recovered a spec-version declaration.

New-style spec-version

scanSpecVersion :: ByteString -> Maybe Version Source #

Quickly scan new-style spec-version

A new-style spec-version declaration begins the .cabal file and follow the following case-insensitive grammar (expressed in RFC5234 ABNF):

newstyle-spec-version-decl = "cabal-version" *WS ":" *WS newstyle-pec-version *WS

spec-version               = NUM "." NUM [ "." NUM ]

NUM    = DIGIT0 / DIGITP 1*DIGIT0
DIGIT0 = %x30-39
DIGITP = %x31-39
WS = %20

Supplementary build information