On Dec 12, 2005, at 1:55 PM, Chip Salzenberg wrote:
On Mon, Dec 12, 2005 at 12:30:47AM +0100, Leopold Toetsch wrote:
On Dec 11, 2005, at 23:45, Joshua Isom wrote:
.IfDebug(1,
print "var = "
print var
)
As said, it was surprising me too. Anyway, I think typical use cases
are debugging and I prefer a solution that boils down to no code
at all
for the non-debug case, like C's assert with -DNDEBUG.
Hm. Pondering...
* PIR is primarily a compiler target, not a human language. (Pasm,
in contrast, is an entirely non-human language.) So convenience is
not paramount.
* On the other hand, conditional compilation is cheap & helpful, so
why not?
* Forbidding commas in the expanded code is not OK. And requiring
backwhacked commas isn't OK either: too ugly, too much work to add
and remove conditionals around existing code.
So I guess we just need a robust multi-line quoting convention (to
pass multiple lines of code to macros).
That sounds suspiciously like a HEREDOC.
See: http://rt.perl.org/rt3/Ticket/Display.html?id=37600, which was
marked as rejected.
(Musing while typing:) How
about using braces as balanced delimeters when an open brace is the
first character:
.IfDebug(1, {
multi,line
stuff,with,commas
and even {nested} braces
goes
here
})
--
Chip Salzenberg <[EMAIL PROTECTED]>
