[Haskell-cafe] GHC rendering of non-ASCII characters configurable?

Ivan Lazar Miljenovic ivan.miljenovic at gmail.com
Tue Jul 31 13:17:34 CEST 2012

On 31 July 2012 21:01, Richard Cobbe <cobbe at ccs.neu.edu> wrote:
> On Mon, Jul 30, 2012 at 11:45:38PM +1000, Ivan Lazar Miljenovic wrote:
>> On 30 July 2012 04:04, Richard Cobbe <cobbe at ccs.neu.edu> wrote:
>> > I'm working on an application that involves processing a lot of Unicode
>> > data, and I'm finding the built-in Show implementation for Char to be
>> > really inconvenient.  Specifically, it renders all characters at U+0080 and
>> > above with decimal escapes:
>> >
>> >     Prelude> '\x80'
>> >     '\128'
>> >
>> > This is annoying because all of the Unicode charts give the code points in
>> > hex, and indeed the charts are split into different PDFs at numbers that
>> > are nice and round in hex but not in decimal.  So in order to figure out
>> > which character I'm looking at, I have to convert back to hex and then look
>> > it up in the charts.
>> Can I ask what you're doing here? Are you printing individual
>> characters or entire chunks of text?
> Mostly, I'm working with expressions of type String, rather than Text;

Any particular reason why?  Using Text will probably solve your
problem and give you a performance improvement at the same time.

Ivan Lazar Miljenovic
Ivan.Miljenovic at gmail.com

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