Modulecmdargs-0.10.22Haskell2010

System.Console.CmdArgs.Verbosity

A module to deal with verbosity, how 'chatty' a program should be. This module defines the Verbosity data type, along with functions for manipulating a global verbosity value.

1 type
6 values

Packagecmdargs-0.10.22
Exports7
LanguageHaskell2010
LicenceBSD-3-Clause
SourceVerbosity.hs

datadata Verbosity

The verbosity data type

Constructors

Quiet
Only output essential messages (typically errors)
Normal
Output normal messages (typically errors and warnings)
Loud
Output lots of messages (typically errors, warnings and status updates)

Instances7Bounded, Enum, Eq, Data, Ord, Read, …

Bounded VerbosityDefined in cmdargs-0.10.22 · System.Console.CmdArgs.Verbosity
Enum VerbosityDefined in cmdargs-0.10.22 · System.Console.CmdArgs.Verbosity
Eq VerbosityDefined in cmdargs-0.10.22 · System.Console.CmdArgs.Verbosity
Data VerbosityDefined in cmdargs-0.10.22 · System.Console.CmdArgs.Verbosity
Ord VerbosityDefined in cmdargs-0.10.22 · System.Console.CmdArgs.Verbosity
Read VerbosityDefined in cmdargs-0.10.22 · System.Console.CmdArgs.Verbosity
Show VerbosityDefined in cmdargs-0.10.22 · System.Console.CmdArgs.Verbosity

valuesetVerbosity :: Verbosity -> IO ()

Set the global verbosity.

valuegetVerbosity :: IO Verbosity

Get the global verbosity. Initially Normal before any calls to setVerbosity.

valueisNormal :: IO Bool

Used to test if warnings should be output to the user. True if the verbosity is set to Normal or Loud (when --quiet is not specified).

valueisLoud :: IO Bool

Used to test if status updates should be output to the user. True if the verbosity is set to Loud (when --verbose is specified).

valuewhenNormal :: IO () -> IO ()

An action to perform if the verbosity is normal or higher, based on isNormal.

valuewhenLoud :: IO () -> IO ()

An action to perform if the verbosity is loud, based on isLoud.