Flattens European non-ASCII characaters into ASCII.

ascii-flatten

This simple library provides a function to flatten non-ASCII European characters into nearest US-ASCII equivalent.

Hackage package: http://hackage.haskell.org/package/ascii-flatten-0.1.0.0

See source for Data.Char.AsciiFlatten for the character conversions.

The character translation table is derived from this URL: http://yob.id.au/2008/05/08/thinking-sphinx-and-unicode.html

Usage

:m + Data.Char.AsciiFlatten
ghci> map asciiFlatten "café"
"cafe"
ghci> map asciiFlatten "Übermensch"
"Ubermensch"

When performance matters, use

Data.Text.map :: (Char -> Char) -> Text -> Text

Command line usage

The package also installs a simple command line tool named ascii-flatten for use from the command line and in shell scripts:

$ echo café | ascii-flatten
cafe

Code generation

The code for this package is generated using the build.sh script in the project directory.