Re: wide-char is wide

[Hans Aberg]

On 26 Mar 2009, at 00:55, Trevor Daniels wrote:

> > The manual says that \char #65 produces the letter "A". Here, 65 is  
> > an  ordinary integer. Which position number basis? The ASCII  
> > hexadecimal  number for "A" is 41, in languages like C/C++ written  
> > as 0x41, and in Unicode U+0041. What is the decimal number? In  
> > decimal, 4*16+1 = 65.  What is the representation in the computer?  
> > All ASCII characters are  translated as binary numbers. Since the  
> > hexadecimal form is 41, 0x4 is binary 0100, and 0x1 is binary 0001,  
> > 0x41 is binary 01000001. So 0x41  is one 8-bit byte.
> >
> > So the manual is a bit short: it should say that the number is a  
> > decimal integer representing the Unicode code point.
>
> No, the argument to \char is a hex number.

No, the argument is an integer: Robin Bannister pointed out that  
Guile, which LilyPond calls, has syntax for different number basis:
  http://www.gnu.org/software/guile/manual/html_node/Number-Syntax.html

So when you have used it, you probably have written
  \char #x41
Right?

  Hans