Ok, I am about to rename a bunch of files which end in dot-something, ie: 
.Z
.zip
.tar
.ar

[download]
But I must insert $platform just before the dot-something, e.g.: 
solaris.Z
linux_alpha.zip

[download]
So I wrote this regexp (I have plenty of testosterone --- no wimpy split and join or rindex on '.' for me): 
sub new_filename {
    my ($name,$platform) = @_;
    $name =~ /(.+)(\..+)$/ or die "$name is an invalid patch name";
    "$1$platform$2";
}

[download]
So I think my regex is right. I am saying: be greedy and go all the way to the end of the string, but you must give up characters until the second parenthesized expression has been filled with a literal dot and at least one character after it. and therefore the second literal expression will have the file extension in it and I just need to pop $platform in between the two matched parts of the string.

But am I really right? Or have my gonads gotten the best of me?

In reply to regex to match a literal dot near end of string by princepawn

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