Mode modifiers
Match mode can be set within regular expression itself.
#!/bin/perl -l
=begin
Many flavors allow some of the regex and match modes to be set
A mode modifier turns on the mode only for what's matched
within the parentheses
(?i) case-insensitivity match mode
(?x) free-spacing and comments regex mode
(?s) dot-matches-all match mode
(?m) enchanced line-anchor match mode
(?-i) turns off case-insensitivity
=cut
$a = "This is string";
$b = "Not A String";
$a =~ m/((?i)[a-z]+)/;
print $1; # This
$b =~ m/((?i)[a-z]+ [a-z]+)/;
print $1; # Not A
Last update: 192 days ago
