Hello Wernher, On Sun, 2 Mar 2014 21:42:00 +0200 Wernher Eksteen <crypt...@gmail.com> wrote:
> Hi Everyone, > > I need your help with this one please. > > I have a config file that is written/updated with a Python based web front > end tool. I would like to add/remove hosts to/from this config file using > Perl. > > The idea I have is for Perl to read this config file, and instead of > adding/replcing values to the original config file, to re-write the config > file with the > latest hostname that was added or removed to a new config file in the same > format so that the Python based web tool can read it. > > This exceeds my knowledge of Perl at the moment and hope I can learn the > ways from the Perl Masters :-) Hi, I'm going to share several possible approaches for writing such a code which you can study and implement on your own. What I'm not going to do is write your code for you - for me to do that, you'll need to hire me and pay me for my time. In any case, here are some approaches you can take: 1. Write the whole thing in Python instead of Perl. 2. Call to a Python program from the perl program using a different process. 3. Use Inline::Python ( https://metacpan.org/release/Inline-Python ) to embed Python code inside Perl. 4. Parse the file using the parsing techniques described in http://perl-begin.org/uses/text-parsing/ - including the description of parser generators here - http://perl-begin.org/uses/text-parsing/#parser-generators (*Note*: perl-begin.org is a site I originated and maintain), modify its intermediate representation and output it again. Note that parsing can be quite errorprone. Regards, Shlomi Fish -- ----------------------------------------------------------------- Shlomi Fish http://www.shlomifish.org/ First stop for Perl beginners - http://perl-begin.org/ If you have the same ideas as everybody else, but have them one week earlier than everyone else — then you will be hailed as a visionary. But if you have them five years earlier, you will be named a lunatic. ( Barry Jones ) Please reply to list if it's a mailing list post - http://shlom.in/reply . -- To unsubscribe, e-mail: beginners-unsubscr...@perl.org For additional commands, e-mail: beginners-h...@perl.org http://learn.perl.org/
