# Ruby and XML, validation and DOM **URL:** \ **Category:** Ruby\ **Created:** [December 18, 2005, 3:00pm UTC](https://www.ruby-forum.com/t/ruby-and-xml-validation-and-dom/50578 "2005-12-18T15:00:50Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![gendag](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/f04885/32.png) [@gendag](https://www.ruby-forum.com/u/gendag)\ **Post date:** [December 18, 2005, 3:00pm UTC](https://www.ruby-forum.com/t/ruby-and-xml-validation-and-dom/50578/1 "2005-12-18T15:00:50Z")
Hi all, I’ve started to learn Ruby two days ago and it’s fantastic! 🙂 I need I help, i need a lib to validate a XML file and to create a DOM tree. I’ve search in the web but I didn’t find anuthing, in truth I’ve found libxml for tuby but I didn’t find any documentation for the API… Thx to all that can halp me Gendag ---
**Author:** ![gendag](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/f04885/32.png) [@gendag](https://www.ruby-forum.com/u/gendag)\ **Post date:** [December 18, 2005, 4:13pm UTC](https://www.ruby-forum.com/t/ruby-and-xml-validation-and-dom/50578/2 "2005-12-18T16:13:01Z")
On Sun, 18 Dec 2005 13:56:16 -0000, Gendag [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > I need I help, i need a lib to validate a XML file and to create > a DOM tree. I’ve search in the web but I didn’t find anuthing, in truth > I’ve found libxml for tuby but I didn’t find any documentation for the > API… Not that this is much help right now, but I am working on on some basic documentation for the current libxml codebase. I’ll put it up somewhere as an interim measure either today or tomorrow. I’ll post a link when it’s ready. ---
**Author:** ![gendag](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/f04885/32.png) [@gendag](https://www.ruby-forum.com/u/gendag)\ **Post date:** [December 18, 2005, 5:28pm UTC](https://www.ruby-forum.com/t/ruby-and-xml-validation-and-dom/50578/3 "2005-12-18T17:28:19Z")
On Sunday 18 December 2005 08:57 am, Gendag wrote: > Hi all, > I’ve started to learn Ruby two days ago and it’s fantastic! 🙂 > I need I help, i need a lib to validate a XML file and to create > a DOM tree. I’ve search in the web but I didn’t find anuthing, in truth > I’ve found libxml for tuby but I didn’t find any documentation for the > API… I don’t think it validates, so this may not help, but Rexml is a _great_ API for XML parsing, and it comes with Ruby. ---
**Author:** ![gendag](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/f04885/32.png) [@gendag](https://www.ruby-forum.com/u/gendag)\ **Post date:** [December 18, 2005, 5:37pm UTC](https://www.ruby-forum.com/t/ruby-and-xml-validation-and-dom/50578/4 "2005-12-18T17:37:20Z")
On Dec 18, 2005, at 6:57 AM, Gendag wrote: > I’ve started to learn Ruby two days ago and it’s fantastic! 🙂 > I need I help, i need a lib to validate a XML file and to create > a DOM tree. I highly recommend REXML for creating the DOM tree and working with the XML. But I don’t believe it does DTD/Schema validation. Thankfully, there seem to be lots of other programs and web services that do this bit. Although it would be nice to wrap it all up into one nice little package, how about doing both with separate pieces? For example, start here [http://www.cogsci.ed.ac.uk/~richard/xml-](http://www.cogsci.ed.ac.uk/~richard/xml-) check.html If you don’t choose to use that web service, perhaps the software it links to (or the software that the pages it links to themselves link to) will help. Remember that Ruby can invoke programs from the shell/ command line, and retrieve the results. ---
**Author:** ![gendag](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/f04885/32.png) [@gendag](https://www.ruby-forum.com/u/gendag)\ **Post date:** [December 19, 2005, 5:30am UTC](https://www.ruby-forum.com/t/ruby-and-xml-validation-and-dom/50578/5 "2005-12-19T05:30:09Z")
On Sun, 18 Dec 2005 15:04:46 -0000, Ross B. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > documentation for the current libxml codebase. I’ll put it up somewhere > as an interim measure either today or tomorrow. I’ll post a link when > it’s ready. First cut is up on my site: ``` http://roscopeco.co.uk/projects/libxml-ruby/ ``` It’s quite basic but it has the all-important ‘what methods does it have’ thing about it. It covers the last version released by Trans (I think?), version 0.3.4-04.04.14. Please be advised that a few bugs have been found: ``` * Problems with the default validation on XML::Parser (DTD/Schema validation should be unaffected) * Some small memory leaks across the library * Incompatibilities with GCC 4.0 * Moving nodes between Node/NodeSet operations can cause segfault at Ruby exit. * XPointer/XPath range support is buggy. ``` However I have the critical stuff patched up here and hopefully we’ll be able to get an interim release out very soon. NOTE: The URL above is temporary, so if you’re reading from archives it’ll probably be a redirect to libxml on rubyforge. We (or I anyway) just aren’t quite sure where that is yet ;)) ---
**Author:** ![gendag](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/f04885/32.png) [@gendag](https://www.ruby-forum.com/u/gendag)\ **Post date:** [December 19, 2005, 3:35pm UTC](https://www.ruby-forum.com/t/ruby-and-xml-validation-and-dom/50578/6 "2005-12-19T15:35:37Z")
Ross B. wrote: > First cut is up on my site: > > ``` > http://roscopeco.co.uk/projects/libxml-ruby/ > > ``` > > [cut] I want to thank all for their answers, I’ve tried Rexml and I like it, but I think it doesn’t validate. Now I’ll read your documentation to know how libxml for Ruby works, thanks for the link 🙂 bye! Gendag