Is there a nice way I can figure out whether my regexp has capturing matches in it? My question turned up with some code that (boiled down) needs to differentiate between these two cases:

my @x = ( "1234" =~ m/(\d)/ );  # @x contains a captured match of "1"
my @y = ( "1234" =~ m/34/ );    # @y contains a "1" for a successful m
+atch
print "x=(@x), y=(@y)\n";
# x=(1), y=(1)

[download]

Now I guess I could set $1 to undef before the match and test it afterwards - but this seems so darn inelegant. Am I missing a trick?

In reply to Determing whether a regexp has capturing matches by adrianh

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