The xformat package
Warning: This version of the package is very experimental and the interface may change in later versions. I am seeking comments to improve it.
This package is composed of two functions for formatted conversion between strings and typed values. Each is defined as a type-indexed function using a type class with multiple parameters and functional dependencies along with format descriptors.
Text.XFormat.Read allows one to parse values from a formatted string. Its functionality is similar to the C scanf function. Unlike scanf, however, the format descriptor is well-typed, ensuring that the output type is statically known.
Text.XFormat.Show allows one to print values to a formatted string. Its functionality is similar to the C printf function. Unlike printf, however, the format descriptor is well-typed, ensuring that the variable number arguments are statically known.
These functions can be easily extended to support new formats and new types. Extension is simple: define a format descriptor and an instance of the appropriate class.
|Dependencies||base (≥3.0 & <5.0)|
|Copyright||(c) 2009 Sean Leather|
|Upload date||Thu Mar 1 21:27:24 UTC 2012|