Re: multi-line comments, C macros, Pod abuse
On Sat, Aug 19, 2006 at 02:26:28AM +, Luke Palmer wrote:
On 8/19/06, Aaron Crane [EMAIL PROTECTED] wrote:
You don't actually need a macro in that case:
if 0 { q
...
}
Which, of course, eliminates the original desire to have a
code-commenting construct where you just change the 0 to a 1. After
all, we already have #{}. Incidentally, you could consider that the
desired construct, because it balances, and a closure at statement
level executes itself:
#{
if $baz {
$foo.bar
}
}
To uncomment, remove the # before the {.
Or in the same vein
if 0 { q
# }
To uncomment the real code, add # before the if.
Although it is visually complex.
Nicholas Clark
Re: multi-line comments, C macros, Pod abuse
Stuart Cook schreef:
Larry Wall:
if 0 {
...
}
The one disadvantage of that approach is that it will break if the
commented-out code temporarily fails to compile.
How frequent does that happen?
And in that case s/if 0/\#/, as Luke mentioned.
And if the compile failure has to do with {}, use other braces.
But would the following work?
0 or q:to/END42/
...
END42
--
Affijn, Ruud
Gewoon is een tijger.
Re: multi-line comments, C macros, Pod abuse
Stuart Cook schreef:
Larry Wall:
if 0 {
...
}
The one disadvantage of that approach is that it will break if the
commented-out code temporarily fails to compile.
How frequent does that happen?
All the time. I often comment out bits of code while I'm refactoring or
such, because I've removed some functions or that the code depends on
s.t. it won't compile any more, I want to compile it to check that the
bits I've done work, and I want the commented-out code visible to remind
me to rewrite it later.
And in that case s/if 0/\#/, as Luke mentioned.
And if the compile failure has to do with {}, use other braces.
As you say, alternatives are available.
But would the following work?
0 or q:to/END42/
...
END42
Shouldn't it be C0 and if you don't want the RHS (or C1 or, I
suppose)? In either case, wouldn't this have the side-effect of setting
the last-evaluated value, which might also be undesired.
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