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

comment on

( [id://3333]=superdoc: print w/replies, xml ) Need Help??
Adding my own experience to what's already been said here...

XML::Parser-based solutions (including XML::Simple) basically use C code to recognize tokens, but then have to build Perl data structures for the entire data tree, even for the parts that aren't being used.

XML::LibXML (if you can get it built and working, because it can be a bit finicky) builds the DOM as a C-side data structure. It's fast. Very fast. From the Perl side, you then ask for precisely the parts of the tree you want (with either DOM or XPath syntax), and only then are the heavyweight Perl objects created for those particular elements.

I've also seen benchmarks that libxml2 (on which XML::LibXML is based) is far faster at just recognizing the tokens than expat (on which XML::Parser is based). This also helps with speed.

I've pretty much abandoned any use of expat-based solutions now. XML::LibXML is it.

-- Randal L. Schwartz, Perl hacker
Be sure to read my standard disclaimer if this is a reply.


In reply to XML::LibXML vs XML::Parser and friends by merlyn
in thread xml parsers: do I need one? by regan

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or How to display code and escape characters are good places to start.
Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Chatterbox?
and the web crawler heard nothing...

How do I use this?Last hourOther CB clients
Other Users?
Others making s'mores by the fire in the courtyard of the Monastery: (8)
As of 2024-03-28 11:29 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found