Category: Perl

No, this guide is not for fools but by a fool, who had kept wondering how CGI.pm is supposed to work and finally got a clue. So here’s how (I think) it works in simplest cases. I hope this might make some other people’s learning curve a little better.

“The Fool’s Guide to CGI.pm”Continue reading

• THESE ALL WRONG !!!!!!

  use Cwd qw(abs_path cwd);
  my $cwd = cwd();
  my $abs_path = abs_path();
  my $FILE = __FILE__;
  print "1. $cwd $abs_path $FILE\n";
  
  "How do I get the full path to a Perl script that is executing? – Right way."Continue reading 

The fact that regex doesn’t support inverse matching is not entirely true. You can mimic this behavior by using negative look-arounds:

1
^((?!hede).)*$

The regex above will match any string, or line without a line break, not containing the (sub) string ‘hede’.As mentioned, this is not something regex is “good” at (or should do), but still, it is possible.

Explanation

“Regular expression to match string not containing a word.”Continue reading

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