Re^2: Unexpected behaviour of /x Regexp modifier?

Hi, you can easily capture spaces literally in \Q ... \E expressions, they are unaffected by /x, see http://perldoc.perl.org/perlre.html#Modifiers

perl -le '
print scalar localtime;
$_=scalar localtime;
/^\QMon Mar \E
   (\d+) \s
   (\d+) : (\d+) : (\d+) \s
   (\d+)/x;
print "$1 $2-$3-$4 $5"
'
Mon Mar 16 21:22:30 2009
16 21-19-13 2009
[download]

print+qq(\L@{[ref\&@]}@{['@'x7^'!#2/"!4']});

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Re^3: Unexpected behaviour of /x Regexp modifier? by johngg (Canon) on Mar 17, 2009 at 10:47 UTC
Another way to do that is to turn `x` off for part of the pattern, either by toggling it, `/ ... (?-x)Mon Mar (?x) ... /x`, or by localising the effect inside parentheses, `/ ... (?-x:Mon Mar ) ... /x`. The technique can also be used for the `i` flag and, I think though I've never tried it, for `s` and `m` as well. I hope this is of interest. Cheers, JohnGG	[reply] [d/l] [select]