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String Inflections for Haskell
This library is a partial port of the
String Inflector
from Ruby on Rails. It currently implements methods such as parameterize
,
transliterate
, camelize
, underscore
and dasherize
. Please see the
haddock documentation for a complete list of the functions implemented by this
library.
Unlike the ActiveSupport (Rails) and Ember implementations of inflections, this
library uses a parser to verify the input to functions like camelize
. This is
done to ensure that the output strings adhere to the syntax that they are
supposed to generate. You can read more about the philosophy behind this library
in the
Haddock documentation.
Usage
The following examples demonstrate usage of the parameterize
, transliterate
and camelize
functions:
λ: parameterize "Hola. ¿Cómo estás?"
"hola-como-estas"
λ: transliterate "Hola. ¿Cómo estás?"
"Hola. ?Como estas?"
λ: import Control.Monad (liftM)
λ: liftM camelize $ parseSnakeCase "hey_there"
"HeyThere"
Customization
Part of parameterizing strings is approximating all characters in the input
encoding to ASCII characters. This library copies the character approximation
table from the Ruby i18n library. This data structure is provided as
defaultCharacterTransliterations
. You can provide your own transliteration map
by passing a Map structure (from Data.Map) to the parameterizeCustom
function.
If you want to specify a custom default replacement or approximation table for
the transliterate
function, you should instead call the transliterateCustom
function which accepts a String for replacements and a Map for substitution.
Future work
Ideally, we want to implement other functions found in the Rails inflections library. If you need one of those functions, please submit a pull request!
Further documentation
For more information, please see the the Haddock docs for this module.
Author
Justin Leitgeb justin@stackbuilders.com
License
MIT, see the LICENSE file.
Contributing
Do you want to contribute to this project? Please take a look at our contributing guideline to know how you can help us build it.