optparse-applicative-0.12.1.0: Utilities and combinators for parsing command line options

Safe HaskellSafe
LanguageHaskell98

Options.Applicative.Help.Core

Synopsis

Documentation

cmdDesc :: Parser a -> Chunk Doc Source

Generate descriptions for commands.

briefDesc :: ParserPrefs -> Parser a -> Chunk Doc Source

Generate a brief help text for a parser.

fold_tree :: OptTree (Chunk Doc) -> Chunk Doc Source

fullDesc :: ParserPrefs -> Parser a -> Chunk Doc Source

Generate a full help text for a parser.

data ParserHelp Source

Constructors

ParserHelp 

Fields

helpError :: Chunk Doc
 
helpHeader :: Chunk Doc
 
helpUsage :: Chunk Doc
 
helpBody :: Chunk Doc
 
helpFooter :: Chunk Doc
 

Instances

errorHelp :: Chunk Doc -> ParserHelp Source

headerHelp :: Chunk Doc -> ParserHelp Source

usageHelp :: Chunk Doc -> ParserHelp Source

bodyHelp :: Chunk Doc -> ParserHelp Source

footerHelp :: Chunk Doc -> ParserHelp Source

parserHelp :: ParserPrefs -> Parser a -> ParserHelp Source

Generate the help text for a program.

parserUsage :: ParserPrefs -> Parser a -> String -> Doc Source

Generate option summary.