P Kishor wrote:
On 1/25/09, Ron Savage <[email protected]> wrote:
Hi Lyle
> I see. But there isn't a Pure Perl parser available, and for those that
> really can't get HTML::Parser on their cheap shared hosting, isn't a
> regexp that works most/some of the time better than nothing?
No, it's not 'better than nothing'. Ever.
All you're doing is lighting the fuse on a time-bomb.
Fortunately I am neither advocating nor desiring a pure-Perl form
validation module, but I don't understand the resistance to this. The
poor bloke is saying -- "look, I have folks who want to utilize my
scripts in situations where they cannot compile modules... what do I
do? Give them something or give them nothing?" I am surprised that
there is so much vehemence against this. I don't believe Lyle is
saying that a pure-Perl alternative is better or even as good as the
compiled modules... all he wants is an alternative, which, while most
likely unsuitable for more than the simple cases, is likely a pretty
good fit for those simple cases.
I heartily agree :)
In fact, my suggestion would be to not do any form validation with
Perl as much as possible... form validation should be done in the
browser, and it just might be best to do it with JavaScript so good
data reaches the server in the first place. Then, on the server, check
for sanity and security.
I had given up on the idea of using Data::FormValidator until I read
someone post a link to
http://formvalidatorjs.berlios.de/
With a JS drop in for Data::FormValidator. It made sense to use these
rather than create my own validation in JS and Perl.
I've now finished and tested the Pure Perl alternative functions in
Data::FormValidator and they pass all the Build tests.
Note: These aren't a replacement to the XS modules, they are an
alternative used only is the XS modules aren't available.
In any case, I respectfully disagree with the "Ever" qualification to
"No, it's not 'better than nothing.'" There just might be situations
in which it maybe better than nothing.
I agree. I'm not saying that a regexp solution will ever compare
HTML::Parser. Just that those who really don't have a choice, a
developed and tested collection of regexps will likely be better than
them having noting or writing their own.
Lyle
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