Yes, you can use functions:
$value=" kkkk.123 ";
for ( $i=0; $i<length($value); $i++ ) {
if ( substr($value,$i,1) eq " " ) {
substr($value,$i,1) = "";
redo;
} else {
last;
}
}
for ( $i=length($value)-1; $i>0; $i-- ) {
if ( substr($value,$i,1) eq " " ) {
$value = substr($value,0,$i);
}
}
but you will like to use the s/// operator, true? :-)
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