Unprintable characters

[Chris Sharman]

Jonas Rosell wrote:
> We do like this when adding a carriage return to the end of a file, 
> probably you could do the same for TAB.
>  
> define tab-code integer = 09
> define tab-char cha*01 = char(tab-code)[2:1]

This is architecture dependent, of course - you don't mention your 
architecture.

Simplest is simply to embed the necessary character into the source, but 
that can cause problems if editors etc can't handle it.

If you prefer the above technique, then on VMS & other architectures 
which support int size 1:
def tab-code int*2 size 1 = 9
def tab-char char*1 = characters(tab-code)

On machines which don't support int size 1, you'll need [1:1] on 
little-endian machines, and [2:1] (or [4:1]) on big-endian, as Jonas said.

If you need it truly portable:
def tab-code int*4 size 2 = 9*257 ; 9 in each byte
; then you don't need to worry about byte ordering.

Is there a FAQ this could go in - it seems to come up often ?

Chris


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