************** Bad Program **** 
my @in = qw(a b c d e f g h);

print "Start: ",@in,"\n","***RUNNING MAP***\n\n";
my @out = map { s/.$/x/}  @in;
print "in : ",@in,"\n";
print "out: ",@out,"\n"

[download]
************* Output ****** 
Start: abcdefgh
***RUNNING MAP***

in : xxxxxxxx
out: 11111111

[download]
*********************
Comment #1:
Use "r" feature on regex
************** fixed Program **** 
my @in = qw(a b c d e f g h);

print "Start: ",@in,"\n","***RUNNING MAP***\n\n";
my @out = map { s/.$/x/r}  @in;
print "in : ",@in,"\n";
print "out: ",@out,"\n"

[download]
************* Output ****** 
Start: abcdefgh
***RUNNING MAP***

in : abcdefgh
out: xxxxxxxx

[download]
****************
Comment #2

But what if you REALLY wanted the return value of the regex - and not modify the original output? (why? I don't know)
Localize the input...

************** fixed Program **** 
my @in = qw(a b c d e f g h);

print "Start: ",@in,"\n","***RUNNING MAP***\n\n";
my @out = map { s/.$/x/}  my @temp = @in;
print "in : ",@in,"\n";
print "out: ",@out,"\n"

[download]
************* Output ****** 
Start: abcdefgh
***RUNNING MAP***

in : abcdefgh
out: 11111111

[download]

In reply to Re^2: Using regex in Map function by spandox
in thread Using regex in Map function by narashima

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