From: "NAKAMURA, Hiroshi" <nakahiro@...>
Date: 2006-07-31T22:43:15+09:00
Subject: Re: humanized Xml tree navigation

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Hi,

chiaro scuro wrote:
> Does anybody know of a library that allows to go through an xml tree as if
> it were made of normal objects?

> What I need to do is to be able to traverse an xml document as in:
> 
> * people.each_person {...}
> * people.person[2].name
> * people.person.name              #takes the first person
> * people.person.size

0% cat people.xml
<people>
  <person>
    <name>name1</name>
    <size>1</size>
  </person>
  <person>
    <name>name2</name>
    <size>2</size>
  </person>
  <person>
    <name>name3</name>
    <size>3</size>
  </person>
</people>
0% irb
irb(main):001:0> require 'xsd/mapping'
=> true
irb(main):002:0> people = XSD::Mapping.xml2obj(File.read("people.xml"))
=> #<SOAP::Mapping::Object:0x3592020
{}person=[#<SOAP::Mapping::Object:0x3591ea0 {}name="name1" {}size="1">,
#<SOAP::Mapping::Object:0x3591684 {}name="name2" {}size="2">,
#<SOAP::Mapping::Object:0x3590f7c {}name="name3" {}size="3">]>
irb(main):003:0> people.person.each { |person| p person }
#<SOAP::Mapping::Object:0x3591ea0 {}name="name1" {}size="1">
#<SOAP::Mapping::Object:0x3591684 {}name="name2" {}size="2">
#<SOAP::Mapping::Object:0x3590f7c {}name="name3" {}size="3">
=> [#<SOAP::Mapping::Object:0x3591ea0 {}name="name1" {}size="1">,
#<SOAP::Mapping::Object:0x3591684 {}name="name2" {}size="2">,
#<SOAP::Mapping::Object:0x3590f7c {}name="name3" {}size="3">]
irb(main):004:0> people.person[2].name
=> "name3"
irb(main):005:0> people.person.name
NoMethodError: undefined method `name' for #<Array:0x6b22108>
        from (irb):5
irb(main):006:0>

Almost.

Regards,
// NaHi


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