> The line delimiter for mac is CR.
I thought that was only for Classic Macs.
So that's really a complication.
If the files is on the disk, it's easier
to preprocess and nomalize/validate the odd CRs,
like from old Macs.
As for streams, I don't believe there is
a CR separated stdin or socket, etc.
--- "Miller, Raul D" <[EMAIL PROTECTED]> wrote:
> The line delimiter for unix is LF.
>
> The line delimiter from the PC is CRLF.
>
> The line delimiter for mac is CR.
>
> Sometimes a trailing fragment (after the last end of line)
> in a text file is treated as a valid line. Sometimes,
> it's not.
>
> Conceptually, you could write a routine which accepts all
> these standards.
>
> For example, a function f could be defined such that
> f 'abc',LF,'def',CRLF,'ghi',CR,'jkl'
> is equivalent to
> ;: 'abc def ghi jkl'
>
> Unfortunately, ;: is not suitable for this task, because it
> cannot emit empty words. However, the definition of f could
> be modified so that it includes the delimiter characters at
> the right hand side of each line. Then the above result would
> be equivalent to
> ('abc',LF);('def',CRLF);('ghi',CR);'jkl'
>
> Unfortunately, ;: is still not suitable for this task, because
> there is no mechanism for it to incorporate the LF after a CR as
> the same line when both CR and LF alone are line end characters.
> (At least, not that I'm aware of.)
>
> So here's another approach:
>
> require 'regex'
> RxLine=: rxcomp'[^\r\n]*(\n|\r\n|\r)?'
> splitlines=: RxLine rxall ]
>
> (I was going to go on and treat a sequence of blocks with this, but
> I've got some other issues distracting me. Maybe later.)
>
> --
> Raul
>
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
>
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