Rexml trouble parsing

7stud2 · 18 September 2013 00:28

No matter what I do, I can't seem to get valid XML to load into REXML
for parsing. Anybody have any idea what I'm doing wrong?

Using Ruby 2.0.0 on a 64 bit machine with Windows 7 Home Premium. I do
use pik and I am sure the correct version is active (different gems):

$pik list
187: ruby 1.8.7 (2012-02-08 patchlevel 358) [i386-mingw32]
* 200: ruby 2.0.0p247 (2013-06-27) [x64-mingw32]

···

====================
require 'rubygems'
require 'openssl'
require 'net/https'
require 'rspec'
require 'rexml/document'
include REXML

#SSL Key
cacert_file = File.join(%w{c: Project GrabSomeData cacert.pem})
#RE: Auto-downloader here to obtain from curl.haxx.se/ca/cacert.pem

#Easy to modify URL perametres
$base_url = "https://maps.googleapis.com/"
$uri = URI.parse($base_url)
places_call = "maps/api/place/nearbysearch/"
key_sensor = "key=[ENTER YOUR DEVELOPER KEY]&sensor=false"
specific_detail =
"&location=53.541195,-113.490331&radius=200&types=bakery|bar|cafe|night_club|bar|restaurant"
$xml_url = $base_url + places_call + "xml?" + key_sensor +
specific_detail

#Get the file and hold in memory
http = Net::HTTP.new($uri.host, $uri.port)
http.use_ssl = true
http.cert = OpenSSL::X509::Certificate.new(File.read cacert_file)
request = Net::HTTP::Get.new($xml_url)
response = http.request(request)

#Tried both with and without the doctype declaration, staying without
#since that was the format of the example file
#at http://www.germane-software.com/software/rexml/index.html#id2248146
xml = response.body.gsub('<?xml version="1.0" encoding="UTF-8"?>','')

#Pull in for REXML
doc = Document.new xml

Result:
<UNDEFINED> ... </>

The same thing happens when I save the example file and import it:

irb(main):047:0> xml = File.read(examples/Rexml.xml)
NameError: undefined local variable or method `examples' for main:Object
        from (irb):47
        from C:/Users/Julie/.pik/rubies/Ruby-200-p195/bin/irb:12:in
`<main>'
irb(main):048:0> xml = File.read(samples/Rexml.xml)
NameError: undefined local variable or method `samples' for main:Object
        from (irb):48
        from C:/Users/Julie/.pik/rubies/Ruby-200-p195/bin/irb:12:in
`<main>'
irb(main):049:0> xml = File.read('samples/Rexml.xml')
=> "<inventory title=\"OmniCorp Store #45x10^3\">\n <section
name=\"health\">\n <item upc=\"123456789\" stock=\"12\">\n
<name>Invisibility Cream</name>\n <price>14.50</price>\n
<description>Makes you invisible</description>\n </item>\n <item
upc=\"445322344\" stock=\"18\">\n <name>Levitation Salve</name>\n
<price>23.99</price>\n <description>Levitate yourself for up to 3 hours
per application</description>\n </item>\n </section>\n <section
name=\"food\">\n <item upc=\"485672034\" stock=\"653\">\n <name

Blork and Freen Instameal</name>\n <price>4.95</price>\n <description
A tasty meal in a tablet; just add water</description>\n </item>\n

<itemupc=\"132957764\" stock=\"44\">\n <name>Grob winglets</name>\n
<price>3.56</price>\n <description>Tender winglets of Grob. Just add
water</description>\n </item>\n </section>\n</inventory>"
irb(main):050:0> doc = Document.new xml
=> <UNDEFINED> ... </>

--
Posted via http://www.ruby-forum.com/\.

abinoam · 18 September 2013 02:30

Quick answer...

xml = File.read(examples/Rexml.xml) # it is missing apostrophes

xml = File.read("examples/Rexml.xml") # The last is correct.

doc = Document.new xml # Calm down... It is OK to show "<undefined>..."

Try...

puts doc

Try

doc.root

Try:

root = doc.root # => <inventory title='OmniCorp Store #45x10^3'> ... </>
root.attribute("title") # => title='OmniCorp Store #45x10^3'
root.attributes["title"] # => "OmniCorp Store #45x10^3"
root.attribute("title").class # => REXML::Attribute
root.attributes["title"].class # => String
root.elements[1].elements[1].elements[1].text # => "\nInvisibility Cream"
root.elements["section"].elements["item"].elements["name"].text # =>
"\nInvisibility Cream"

Abinoam Jr.

···

On Tue, Sep 17, 2013 at 9:28 PM, Julie M. <lists@ruby-forum.com> wrote:

No matter what I do, I can't seem to get valid XML to load into REXML
for parsing. Anybody have any idea what I'm doing wrong?

Using Ruby 2.0.0 on a 64 bit machine with Windows 7 Home Premium. I do
use pik and I am sure the correct version is active (different gems):

$pik list
  187: ruby 1.8.7 (2012-02-08 patchlevel 358) [i386-mingw32]
* 200: ruby 2.0.0p247 (2013-06-27) [x64-mingw32]

====================
require 'rubygems'
require 'openssl'
require 'net/https'
require 'rspec'
require 'rexml/document'
include REXML

#SSL Key
cacert_file = File.join(%w{c: Project GrabSomeData cacert.pem})
#RE: Auto-downloader here to obtain from curl.haxx.se/ca/cacert.pem

#Easy to modify URL perametres
$base_url = "https://maps.googleapis.com/"
$uri = URI.parse($base_url)
places_call = "maps/api/place/nearbysearch/"
key_sensor = "key=[ENTER YOUR DEVELOPER KEY]&sensor=false"
specific_detail =
"&location=53.541195,-113.490331&radius=200&types=bakery|bar|cafe|night_club|bar|restaurant"
$xml_url = $base_url + places_call + "xml?" + key_sensor +
specific_detail

#Get the file and hold in memory
http = Net::HTTP.new($uri.host, $uri.port)
http.use_ssl = true
http.cert = OpenSSL::X509::Certificate.new(File.read cacert_file)
request = Net::HTTP::Get.new($xml_url)
response = http.request(request)

#Tried both with and without the doctype declaration, staying without
#since that was the format of the example file
#at http://www.germane-software.com/software/rexml/index.html#id2248146
xml = response.body.gsub('<?xml version="1.0" encoding="UTF-8"?>','')

#Pull in for REXML
doc = Document.new xml

Result:
<UNDEFINED> ... </>

The same thing happens when I save the example file and import it:

irb(main):047:0> xml = File.read(examples/Rexml.xml)
NameError: undefined local variable or method `examples' for main:Object
        from (irb):47
        from C:/Users/Julie/.pik/rubies/Ruby-200-p195/bin/irb:12:in
`<main>'
irb(main):048:0> xml = File.read(samples/Rexml.xml)
NameError: undefined local variable or method `samples' for main:Object
        from (irb):48
        from C:/Users/Julie/.pik/rubies/Ruby-200-p195/bin/irb:12:in
`<main>'
irb(main):049:0> xml = File.read('samples/Rexml.xml')
=> "<inventory title=\"OmniCorp Store #45x10^3\">\n <section
name=\"health\">\n <item upc=\"123456789\" stock=\"12\">\n
<name>Invisibility Cream</name>\n <price>14.50</price>\n
<description>Makes you invisible</description>\n </item>\n <item
upc=\"445322344\" stock=\"18\">\n <name>Levitation Salve</name>\n
<price>23.99</price>\n <description>Levitate yourself for up to 3 hours
per application</description>\n </item>\n </section>\n <section
name=\"food\">\n <item upc=\"485672034\" stock=\"653\">\n <name

Blork and Freen Instameal</name>\n <price>4.95</price>\n <description
A tasty meal in a tablet; just add water</description>\n </item>\n

<itemupc=\"132957764\" stock=\"44\">\n <name>Grob winglets</name>\n
<price>3.56</price>\n <description>Tender winglets of Grob. Just add
water</description>\n </item>\n </section>\n</inventory>"
irb(main):050:0> doc = Document.new xml
=> <UNDEFINED> ... </>

--
Posted via http://www.ruby-forum.com/\.

7stud2 · 18 September 2013 05:23

Totally awesome, all working now.

corrects are now:
http = Net::HTTP.new($uri.host, $uri.port)
http.use_ssl = true
http.cert = OpenSSL::X509::Certificate.new(File.read cacert_file)
request = Net::HTTP::Get.new($xml_url)
response = http.request(request)

#xml = fetch_ssl($xml_url,1)
xml = response.body
include REXML
doc = Document.new xml
puts doc
references = Array.new
XPath.each( doc, "//reference") {|a| references << a.text}

···

--
Posted via http://www.ruby-forum.com/.

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