James Edward Gray II <[EMAIL PROTECTED]> writes: > This, on the other hand is a search/replace and probably works exactly > as you expect. The lines are preforming two different operations, > thus the different results.
My point here is that in both cases , regardless of them being different actions, the value returned is the same: '', Yet one crys foul and the other silently keeps on trucking. Both print the same `<>'. In both techniques all that is left to be passed to $trimmed_line is ''. In trying to defeat you explanation I think I proved to myself why it is right... (I hate when that happens .... hehe) But finally I've been made to see the difference between a null value and an uninitiallized one. This kind of shows the story: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ #!/usr/local/bin/perl -w $line3 = ''; @ar2 = split(/ /,$line3); ## set to null print "[EMAIL PROTECTED] = <@ar2>\n" ; print "\$ar2[0] = <$ar2[0]>\n"; ## uninitiallized ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ OUT>>> ./sptest @ar2 = <> Use of uninitialized value in concatenation (.) or string at ./sptest line 6. $ar2[0] = <> -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
