Re: /foo${re}bar/

{}'s are separators. They are used such that Perl knows where the variable name finishes:

$x = "abc";
$xghi = "def";
print "${x}ghi\n";
# abcghi
print "$xghi\n";
# def
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Re: Re: /foo${re}bar/ by eweaverp (Scribe) on Jul 27, 2003 at 04:19 UTC
Why not /foo{$re}bar/? Just that {} already is used for repetition, and a number would get interpolated? Which usage came first in Perl-time?	[reply]
Re: Re: Re: /foo${re}bar/ by BUU (Prior) on Jul 27, 2003 at 04:22 UTC
er, no. `${foo}` has been the standard way to disambiguate variables for a long time now and was independent of regex. Mostly used for strings, aside from this as in: `print "${Foo}bar"` and similar, also used for references, so called "soft" refs in the form of `${"foo"}` and hard refs in the form of `$x=\$foo; ${$x}` Also works with the various other sigils, $%@.	[reply] [d/l] [select]