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Marc
#1 / 13
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 How to enclose scalar for readability? Is there a way to enclose a scalar variable for both readability and
parsing reasons?
For example:
print "This is the two variables I want $together$here"
Is there some way to enclose these so they are not together and will
print ok still. Especially if I have a variable named $together and
maybe one called $togethe (and I want the "r" to print between $togethe
and $here)
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| Tue, 14 Oct 2003 02:25:57 GMT |
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Greg Bac
#2 / 13
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How to enclose scalar for readability?
: For example:
:
: print "This is the two variables I want $together$here"
:
: Is there some way to enclose these so they are not together and will
: print ok still. Especially if I have a variable named $together and
: maybe one called $togethe (and I want the "r" to print between $togethe
: and $here)
Use curly braces:
print "${togethe}r${here}";
Note that the braces around $here aren't strictly necessary, but they
seem to provide balance. YMMV.
Greg
--
Lisp requires an unhealthy relationship with the lambda calculus that
leads to proposing the dog of food instead of feeding the dog.
-- The Programmers' Stone
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| Tue, 14 Oct 2003 02:31:04 GMT |
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Anno Sieg
#3 / 13
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How to enclose scalar for readability?
Quote:
> : For example:
> :
> : print "This is the two variables I want $together$here"
> :
> : Is there some way to enclose these so they are not together and will
> : print ok still. Especially if I have a variable named $together and
> : maybe one called $togethe (and I want the "r" to print between $togethe
> : and $here)
> Use curly braces:
> print "${togethe}r${here}";
> Note that the braces around $here aren't strictly necessary, but they
> seem to provide balance. YMMV.
Side note: It's interesting that this construct is not a case of
the ${ BLOCK } dereferencing syntax. While the latter would work
for ${togethe}, it would involve the bareword "togethe" (hmm, how
to quote a bareword?) and a symref to $togethe. The behavior
against warnings and strict shows that it is special-cased.
Anno
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| Tue, 14 Oct 2003 02:47:36 GMT |
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Andrew J. Perr
#4 / 13
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How to enclose scalar for readability? Quote:
> Is there a way to enclose a scalar variable for both readability and
> parsing reasons?
braces.
Quote: > For example:
> print "This is the two variables I want $together$here"
--
----------------------------------------------------------------------
Andrew J Perrin - Ph.D. Candidate, UC Berkeley, Dept. of Sociology
(Soon: Asst Professor of Sociology, U of North Carolina, Chapel Hill)
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| Tue, 14 Oct 2003 04:34:29 GMT |
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Samuel Thoma
#5 / 13
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How to enclose scalar for readability? Quote:
> Use curly braces: > print "${togethe}r${here}";
or:
print "we are all $togethe" . 'r' . $here;
--
/\
Sam Thomas / \
Ext 1161 / ** \
/______\
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| Tue, 14 Oct 2003 04:43:47 GMT |
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Greg Bac
#6 / 13
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How to enclose scalar for readability?
:
: > Use curly braces:
: >
: > print "${togethe}r${here}";
:
: or:
: print "we are all $togethe" . 'r' . $here;
TMTOWTDI:
print "we're all $ta", 'rs in the dope ', "$how!";
Greg
--
Since I was running Windows, I did the normal thing you do when you
encounter problems: I rebooted.
-- Simson Garfinkel
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| Tue, 14 Oct 2003 05:19:31 GMT |
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Bart Lateu
#7 / 13
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How to enclose scalar for readability? Quote:
>> print "${togethe}r${here}"; >> Note that the braces around $here aren't strictly necessary, but they
>> seem to provide balance. YMMV.
>Side note: It's interesting that this construct is not a case of
>the ${ BLOCK } dereferencing syntax. While the latter would work
>for ${togethe}, it would involve the bareword "togethe" (hmm, how
>to quote a bareword?) and a symref to $togethe. The behavior
>against warnings and strict shows that it is special-cased.
Plus: it works for lexicals, too. As Anno should know: symbolic
references, don't.
--
Bart.
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| Tue, 14 Oct 2003 05:27:38 GMT |
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Bart Lateu
#8 / 13
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How to enclose scalar for readability? Quote:
>print "This is the two variables I want $together$here" >Is there some way to enclose these so they are not together and will
>print ok still. Especially if I have a variable named $together and
>maybe one called $togethe (and I want the "r" to print between $togethe
>and $here)
"${togethe}r"
but this works, too:
"$together\Er"
--
Bart.
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| Tue, 14 Oct 2003 05:28:26 GMT |
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Abiga
#9 / 13
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How to enclose scalar for readability?
in <URL::">
//
// >print "This is the two variables I want $together$here"
// >
// >Is there some way to enclose these so they are not together and will
// >print ok still. Especially if I have a variable named $together and
// >maybe one called $togethe (and I want the "r" to print between $togethe
// >and $here)
//
// "${togethe}r"
//
// but this works, too:
//
// "$together\Er"
Really? Now, where is that documented? Or did you typo?
Abigail
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| Tue, 14 Oct 2003 05:42:18 GMT |
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Bart Lateu
#10 / 13
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How to enclose scalar for readability? Quote:
>// but this works, too: >// >// "$together\Er" >Really? Now, where is that documented? Or did you typo?
"r" too much.
The "\E" provides a break, but doesn't insert anything by itself.
--
Bart.
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| Tue, 14 Oct 2003 06:06:11 GMT |
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Anno Sieg
#11 / 13
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How to enclose scalar for readability?
Quote:
> >> print "${togethe}r${here}";
> >> Note that the braces around $here aren't strictly necessary, but they
> >> seem to provide balance. YMMV.
> >Side note: It's interesting that this construct is not a case of
> >the ${ BLOCK } dereferencing syntax. While the latter would work
> >for ${togethe}, it would involve the bareword "togethe" (hmm, how
> >to quote a bareword?) and a symref to $togethe. The behavior
> >against warnings and strict shows that it is special-cased.
> Plus: it works for lexicals, too. As Anno should know: symbolic
> references, don't.
Oh, right. This shows that it doesn't just exempt the bit from
warnings and strictures and otherwise relies on the ${ BLOCK}
mechanism.
Anno
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| Tue, 14 Oct 2003 06:17:48 GMT |
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nob..
#12 / 13
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How to enclose scalar for readability? Quote:
> >// but this works, too:
> >//
> >// "$together\Er"
> >Really? Now, where is that documented? Or did you typo?
> "r" too much.
> The "\E" provides a break, but doesn't insert anything by itself.
So does "${['']}" but I wouldn't consider using it or "\E" this way to
be an aid to _readability_ as per the subject of this thread :-)
--
\\ ( )
. _\\__[oo
. l___\\
# ll l\\
###LL LL\\
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| Wed, 15 Oct 2003 01:41:55 GMT |
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Michael LaGal
#13 / 13
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How to enclose scalar for readability?
Quote: > Is there a way to enclose a scalar variable for both readability and > parsing reasons? > For example:
> print "This is the two variables I want $together$here"
> Is there some way to enclose these so they are not together and will
> print ok still. Especially if I have a variable named $together and
> maybe one called $togethe (and I want the "r" to print between $togethe
> and $here)
$here="e";
print "This is the two variables I want $togethe" . "R" . "$here";
This prints:
This is the two variables I want aRe
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| Mon, 20 Oct 2003 10:03:33 GMT |
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