Re: Cross-platform newlines in multiline strings

[Edgar Toernig <froese@...>]

Aaron Brown wrote:
>
> That wouldn't be quite what I expected, but let me exhaust
> some possibilities and you can correct me if I'm wrong on
> any of them

Here's what I did it in Sol: three different line endings
that get converted to \n:

	Unix-style: LF     (0x0a)
	Mac-style:  CR     (0x0d)
	DOS-style:  CR LF  (0x0d 0x0a)

The sequence LF CR is interpreted as two EOLs, a Unix-EOL
followed by a Mac-EOL.  I'm not aware of any system that
uses this sequence as a single EOL.

> I'm guessing that all of the following
> 
> <X> <NL> <NL> <X>
> <X> <NL> <CR> <NL> <CR> <X>   [??? not CR NL CR NL ???]
> <X> <CR> <CR> <X>
> <X> <NL> <CR> <NL> <CR> <X>
> 
> will be treated as
> 
> <X> <NL> <NL> <X>

Not in Sol.  Lines 2 and 4 become <X>\n\n\n<X> (Unix-DOS-Mac).
[If you swap the NLCRs in line 2 then it becomes <X>\n\n<X>]

Further, I added Ctrl-Z (0x1a) as an EOF character as it is
under DOS and I limited identifiers to ASCII-chars.
With these changes, scripts are binary compatible between
the three system types, need no conversion and generate the
same code.

Ciao, ET.