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comp.lang.ruby

REXML element reading
error

John Butler

8/31/2007 7:58:00 PM

When reading in the site element from my xml file using rexml it seems
to be chopping the rest of the text off after the first <br/>

The value in the XML file is below
<Site>123 street<br/>amstown<br/>amserland</Site>

element = REXML::XPath.first(doc, '//Site')

puts element.text #shows 123 Street

How can i get the full data and once i have it i can remove the <br/>
I cant find any information on this?????

JB
--
Posted via http://www.ruby-....
4 Answers

Keith Fahlgren

8/31/2007 8:19:00 PM

0

On 8/31/07, John Butler <johnnybutler7@gmail.com> wrote:
> When reading in the site element from my xml file using rexml it seems
> to be chopping the rest of the text off after the first <br/>
>
> The value in the XML file is below
> <Site>123 street<br/>amstown<br/>amserland</Site>
>
> element = REXML::XPath.first(doc, '//Site')
>

I'd suggest using a bit more XPath, both text() and a each {} to
iterate through the text nodes (which are distinct):

$ irb -r rexml/document --prompt xmp
a = REXML::Document.new("<Site>123 street<br/>amstown<br/>amserland</Site>")
# => <UNDEFINED> ... </>
REXML::XPath.first(a, '//Site').text
# => "123 street"
REXML::XPath.first(a, '//Site/text()').to_s
# => "123 street"
REXML::XPath.each(a, '//Site/text()') {|el| puts el}
123 street
amstown
amserland
# => ["123 street", "amstown", "amserland"]


HTH,
Keith

Nobuyoshi Nakada

8/31/2007 11:27:00 PM

0

Hi,

At Sat, 1 Sep 2007 05:18:48 +0900,
Keith Fahlgren wrote in [ruby-talk:266990]:
> I'd suggest using a bit more XPath, both text() and a each {} to
> iterate through the text nodes (which are distinct):
>
> $ irb -r rexml/document --prompt xmp
> a = REXML::Document.new("<Site>123 street<br/>amstown<br/>amserland</Site>")
> # => <UNDEFINED> ... </>
> REXML::XPath.first(a, '//Site').text
> # => "123 street"

Seems like that just REXML::XPath.first(a, '//Site').to_s
returns the whole content.

--
Nobu Nakada

Phlip

8/31/2007 11:46:00 PM

0

Keith Fahlgren wrote:

> REXML::XPath.each(a, '//Site/text()') {|el| puts el}

The assert_xpath plugin wraps that up in this convenient method:

class REXML::Element
def inner_text
return self.each_element( './/text()' ){}.join( '' )
end
end
....
def test_absolve_breaks
a = REXML::Document.new("<Site>123
street<br/>amstown<br/>amserland</Site>")
assert_equal "123 streetamstownamserland", a.inner_text
end

Come to think of it, that's not terribly programmer-friendly! Let's upgrade
it a little...

assert_equal "123 streetamstownamserland", a.inner_text
assert_equal "123 street\namstown\namserland", a.inner_text("\n")
....
def inner_text(interstitial = '')
return self.each_element( './/text()' ){}.join(interstitial)
end

--
Phlip
http://www.oreilly.com/catalog/9780...
"Test Driven Ajax (on Rails)"
assert_xpath, assert_javascript, & assert_ajax


not

9/1/2007 5:18:00 PM

0

On Sat, 01 Sep 2007 04:57:57 +0900, John Butler wrote:

> When reading in the site element from my xml file using rexml it seems
> to be chopping the rest of the text off after the first <br/>

Not quite. It gives you the *first* text element.

> The value in the XML file is below
> <Site>123 street<br/>amstown<br/>amserland</Site>
>
> element = REXML::XPath.first(doc, '//Site')
>
> puts element.text #shows 123 Street
>
> How can i get the full data and once i have it i can remove the <br/> I
> cant find any information on this?????

You can't find any specific info because there isn't anything specific.
You have an XML element that contains a text node, an empty element named
br, another text node, another empty element named br and another text
node. In the XML world, <br/> is a node like any other.

The REXML::Element.texts method is what you are looking for:

$ irb
irb(main):001:0> require "rexml/document"
=> true

irb(main):002:0> doc=REXML::Document.new("<Site>123 street<br/>amstown<br/
>amserland</Site>")
=> <UNDEFINED> ... </>

irb(main):003:0> doc.root.texts
=> ["123 street", "amstown", "amserland"]

irb(main):004:0> doc.root.texts.join " "
=> "123 street amstown amserland"


Enjoy!