RegEx Blues 1

[Zoom1234]

Hi,

Why

if ( $str =~ /(.*)TEST/ ) {
...
}
if ( $str =~ /(.*)TEST1/ ) {
...
}
$cwd = $1 ;

this doesn't work.
But this works fine

if ( $str =~ /(.*)TEST/ ) {
...
$cwd = $1 ;
}
if ( $str =~ /(.*)TEST1/ ) {
...
$cwd = $1 ;
}

 

[ishnid]

When you try to take a numbered variable from a regexp in the `if' statement like that, it only remains in scope inside the `if' statement's block. In other words, the variable can no longer be accessed once you hit the closing parenthesis.

 

[KevinADC]

without knowing what you are doing, you can write that in one regexp:

if ($test =~ /(.*)TEST1?/) {
   $cwd = $1;
}

or group the regexp's use the 'or' operator:

if ($test =~ /(.*)TEST/ or $test =~ /(.*)TEST1/) {
   $cwd = $1;
}

ishnid aanswered your question though.

 

[Zoom1234]

Yes, ishnid reply is satisfactory. Have a star. Thanks.