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Say I have the following in perl:
my $string;
$string =~ s/ /\\ /g;
$string =~ s/'/\\'/g;
$string =~ s/`/\\`/g;
Can the above substitutions be performed with a single combined regular expression instead of 3 separate ones?
Uses a character class
[ '`]to match one of space, ‘ or ` and uses brackets()to remember the matched character.$1is then used to include the remembered character in the replacement.