Re: lexical expression for code points

[tomas]

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On Fri, Dec 11, 2015 at 06:04:12AM -0800, Matt Wette wrote:
> How does one express a unicode character in guile?  The text in the reference 
> manual is not clear to me.
> 
> scheme@(guile-user)> (display #\U+0020)
> While reading expression:
> ERROR: In procedure scm_lreadr: #<unknown port>:7:1: unknown character name 
> U+0020
> scheme@(guile-user)> 

Try \x#0020 (or just \#x20). If you prefer octal, #\40 will do.

Cf. the Guile Reference, "6.6.3 Characters":

     Characters may also be written using their code point values.
     They can be written with as an octal number, such as `#\10'
     for `#\bs' or `#\177' for `#\del'.

     If one prefers hex to octal, there is an additional syntax
     for character escapes: `#\xHHHH' - the letter 'x' followed by
     a hexadecimal number of one to eight digits.

regards
- -- t
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