04-18-2013
Why were you asked to rewrite in C++? Was any justification given? Or is it just a blind assumption that it will be better?
I am going to assume that the perl script is a complicated beast.
I would seriously advise
against a rewrite, except as a last resort. Complex code that works well is usually the result of a lot of testing and debugging. I would not cast it aside lightly.
I concur with Corona688 and elixir_sinari. Profile your current script and see where it spends most of its time. Then, have a look at those subroutines and see if they can be optimized in perl. Even if that's insufficient, a complete rewrite is still not your only alternative. The critical perl sections can be re-implemented in C and loaded by the perl interpreter like any other module:
perlxs.
One thing is certain: advice on whether to rewrite code from people who do not know what that code does isn't worth much. Perhaps not even the proverbial 2 cents.
Regards,
Alister
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LEARN ABOUT DEBIAN
mirrortool
MIRRORTOOL(1) OMT documentation. MIRRORTOOL(1)
NAME
mirrortool.pl - OpaL Mirror Tool (OMT)
DESCRIPTION
Creates a mirror of a webpage. It has a number of features such as link rewriting and more. (See the options below).
USAGE
mirrortool.pl [options] [url] [options] [url] [...]
OPTIONS
--images : Include <img src=xxx>:s in the download. (default)
--noimages : Do not include <img src=xxx>:s in the download.
--depth n : Maximum recursion depth. (default 1)
--store "regexp" : Files matching regexp are actually stored locally.
: It is possible to | separate (with or).
--rewrite "from=>to" : Urls are rewritten using this rules.
: It is possible to | separate (with or).
: Do not rewrite the dir, because that it will affect
: later lookup. Have to fix this sometime.
--what "regexp" : Files matching regexp are downloaded and traversed.
: It is possible to | separate (with or).
--dir basedir : Where to store local files.
--nohostcheck : Do not check if url points to other host.
--notreecheck : Do not check if url points to other dirtree.
--force : Overwrite all files.
--debug : Print debug-messages.
--retry n : Number of times an url will be retried (default 1)
--auth user:pass : use Basic Authentication
--proxy url : Use a proxy server (like http://u:p@localhost/).
--help : Print this text.
AUTHOR
Ola Lundqvist <opal@lysator.liu.se>
SEE ALSO
mirrortool.pl(1)
perl v5.8.8 2002-04-15 MIRRORTOOL(1)