[racket] Unicode character name

From: Manfred Lotz (manfred.lotz at arcor.de)
Date: Wed May 15 16:02:00 EDT 2013

On Wed, 15 May 2013 13:18:32 -0600
Danny Yoo <dyoo at hashcollision.org>

> It should not be difficult to do this by hand, by taking the contents
> of the Unicode database:
>     http://www.unicode.org/Public/UNIDATA/UnicodeData.txt
> to help define the function that takes unicode characters and returns
> the descriptive name.
> It appears to be a semicolon-separated list of lines.  The first
> column seems to be the code, and the second column seems to be the
> name you're looking for.
> Given that, here is an example implementation of code that defines a
> function to map between the codes and their names:
>     https://gist.github.com/dyoo/5586470
> This implementation may be trying to be a little too clever: it does
> the work of parsing the UnicodeData.txt file at compile time in an
> effort to cache the result to bytecode.  If you use 'raco make' on
> this module,
>     http://docs.racket-lang.org/raco/make.html
> then all subsequent uses of this module can reuse that compile-time
> work, so that we only parse that file just once and for all.
> Here's what I see when I try it out:
>     > (require "unicode-name.rkt")
>     > (unicode-name #x0907)
> Good luck!
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Thanks a lot for pointing me to this. Works fine. Additionally it gives
me enough information so that I could build my own stuff if I wish.


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