Hello, is there a way to check if a given variable contains only one letter, e.g. X and not any other letters from A-Z? By doing:
if($myvar=~/X+/) 
{
 print "ERROR\n";
}

[download]
it works but in that case, as you know, $myvar can contain other letters...

In reply to Check if a variable contains only one letter? by Anonymous Monk

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