Haskell Platform proposal: Add case-insensitive and Haskell 98/2010 compliance

Bas van Dijk v.dijk.bas at gmail.com
Mon Jan 21 16:50:26 CET 2013

On 21 January 2013 00:29, Mark Lentczner <mark.lentczner at gmail.com> wrote:
> In and earlier, it was mapping Data.Char's toLower for all types
> except Text (where it was using Text's toCaseFold)
> From and on, it is using Text's toCaseFold for all types, except
> ByteString, where it uses it's own toLower function optimized for just
> ISO-8859-1.

The output should be identical between and

In the hp branch I changed the documentation to mention ISO-8859-1
instead of ASCII:


Feel free to send me pull requests for better phrasing.


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