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
html::rewriteattributes::resources
HTML::RewriteAttributes::Resources(3pm) User Contributed Perl Documentation HTML::RewriteAttributes::Resources(3pm)
NAME
HTML::RewriteAttributes::Resources - concise resource-link rewriting
SYNOPSIS
# writing some HTML email I see..
$html = HTML::RewriteAttributes::Resources->rewrite($html, sub {
my $uri = shift;
my $content = render_template($uri);
my $cid = generate_cid_from($content);
$mime->attach($cid => content);
return "cid:$cid";
});
# need to inline CSS too?
$html = HTML::RewriteAttributes::Resources->rewrite($html, sub {
# see above
},
inline_css => sub {
my $uri = shift;
return render_template($uri);
});
# need to inline CSS and follow @imports?
$html = HTML::RewriteAttributes::Resources->rewrite($html, sub {
# see above
},
inline_css => sub {
# see above
}, inline_imports => 1);
DESCRIPTION
"HTML::RewriteAttributes::Resources" is a special case of HTML::RewriteAttributes for rewriting links to resources. This is to facilitate
generating, for example, HTML email in an extensible way.
We don't care about how to fetch resources and attach them to the MIME object; that's your job. But you don't have to care about how to
rewrite the HTML.
METHODS
"new"
You don't need to call "new" explicitly - it's done in "rewrite". It takes no arguments.
"rewrite" HTML, callback[, args] -> HTML
See the documentation of HTML::RewriteAttributes.
The callback receives as arguments the resource URI (the attribute value), then, in a hash, "tag" and "attr".
Inlining CSS
"rewrite" can automatically inline CSS for you.
Passing "inline_css" will invoke that callback to inline "style" tags. The callback receives as its argument the URI to a CSS file, and
expects as a return value the contents of that file, so that it may be inlined. Returning "undef" prevents any sort of inlining.
Passing "inline_imports" (a boolean) will look at any inline CSS and call the "inline_css" callback to inline that import.
This keeps track of what CSS has already been inlined, and won't inline a particular CSS file more than once (to prevent import loops).
SEE ALSO
HTML::RewriteAttributes, HTML::Parser, Email::MIME::CreateHTML
AUTHOR
Shawn M Moore, "<sartak@bestpractical.com>"
LICENSE
Copyright 2008-2010 Best Practical Solutions, LLC. HTML::RewriteAttributes::Resources is distributed under the same terms as Perl itself.
perl v5.10.1 2010-11-18 HTML::RewriteAttributes::Resources(3pm)