Beefy Boxes and Bandwidth Generously Provided by pair Networks
Just another Perl shrine
 
PerlMonks  

Re^2: Regex to match first html tag previous to text

by erroneousBollock (Curate)
on Nov 29, 2007 at 03:16 UTC ( #653760=note: print w/ replies, xml ) Need Help??


in reply to Re: Regex to match first html tag previous to text
in thread Regex to match first html tag previous to text

does anybody know if any LWP or similar implement DOM
LWP::UserAgent does not provide DOM-level access.

WWW::Mechanize doesn't either, but does parse the HTML for you in order to provide methods like links(), which incidentally, does what you want.

I have a hunch that DOM parsing is cleaner than X(HT)ML parsing
"DOM" is not a manner of parsing, but a manner of access. For methods from the DOM to be able to access data from a tree of nodes, some "parser" code still has to build that tree.

It's certainly cleaner to access data using DOM (or DOM-like) methods, or selector interfaces like XPath or XQuery.

HTML::TreeBuilder::XPath builds an HTML::Tree internally and then provides XPath-like access to that tree.

(HTML parsing) sometimes not being well formed etc
If you're talking about the robustness of parsing HTML, there are many libraries that parse HTML properly even when given invalid input. It's quite orthogonal to how you access the data once you've parsed the document.

-David


Comment on Re^2: Regex to match first html tag previous to text
Download Code
Re^3: Regex to match first html tag previous to text
by aquarium (Curate) on Nov 29, 2007 at 04:26 UTC
    parsing vs access methods does get blurry...anyway, in the end we're interested in getting to point B and not that interested in the trip itself...whether parsing or using an access method.
    to this point...i think (possibly) best for this problem would be find_link() method of WWWW::Mechanize. not as tedious as Xpath or HTML::Tree etc.
    the hardest line to type correctly is: stty erase ^H

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://653760]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others musing on the Monastery: (10)
As of 2014-07-29 07:53 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    My favorite superfluous repetitious redundant duplicative phrase is:









    Results (211 votes), past polls