Question

I’m trying to change some lines of perl to python and I’m struggling to understand
what’s going on in the perl code. Any help would be greatly appreciated.

thanks!

    my($junk1, $filename, $junk2) = $mydir =~ m/(.*\\)(.*\\)(.*)/;
    $filename =~ s/\\//;
        print $out $filename, "\n"; 

Answer 1

The first line (with m/(.*\\)(.*\\)(.*)/ splits $mydir into three components, the first two ending in backslash.

For example if $mydir was Asdf\fdsa\jkl, the first line sets $junk1 = Asdf\, $filename = fdsa\, $junk2 = jkl.

The line

$filename =~ s/\\//;

takes $filename (fdsa\) and removes the last backslash (the syntax is s/stuff_to_match/stuff_to_substitute_with/).

In python you can use the re module to do regex stuff, or in this case it looks like you could just split on backslash, removing the need for regex.