Break from a loop which is run on a xml

Ruby
1

how do i loop through a xml and break when i find the node with a
specific value…really struggling to break out of a xml loop…most of
the iterators just loop but cannot be break - ed

please help me with this

for e.g.

this is d code where i find the files in a dir & check d earlier time
stamp for each file which is saved in a xml & do a comparison for each

Find.find(’./’){|path|
if path != ‘./abcd.rb’
if ! File::directory? ( path )
modtime = File.mtime(path)
xmldoc.elements.each(“course/file”){ |element|
oldtime = Time.parse(element.attributes[“modified”])
if modtime > oldtime
$changed = “yes”
break
else
$changed = “no”
end
}
newfile = course.add_element ‘file’, {‘version’=>‘2.0’,
‘modified’=> modtime, ‘download’=>$changed}
newfile.text = path[2,path.length]
end
end
}

this is the sample xml…

xyzw.pdf content/banner/t1-st_1.swf content/t1/st_1/page1.swf content/t1/st_2/page1.swf content/t1/st_2/page2.swf content/t1/st_2/page3.swf
2

hi Mythpills,

try to reduce your code to an executable snippet and then post that -
what you’ve posted above cannot be executed as there are undefined
variables.

  • j
3

On Thu, Dec 1, 2011 at 7:02 AM, mythpills P. [email protected]
wrote:

how do i loop through a xml and break when i find the node with a
specific value…really struggling to break out of a xml loop…most of
the iterators just loop but cannot be break - ed

Use a proper XPath expression. Other than that I second what Jake said.

Kind regards

robert

4

sorry guys…its company code cannot make it public.neways i figured out
a way out by using arrays and running a for loop over it…works just the
way i wanted

wish there was a obvious way to do things in Ruby…its concise but it is
cumbersome

5

On Wed, Dec 7, 2011 at 7:59 AM, mythpills P. [email protected]
wrote:

sorry guys…its company code cannot make it public.

Then strip it down / change it to a simple case which shows the
problem you are trying to solve.
http://sscce.org/

neways i figured out
a way out by using arrays and running a for loop over it…works just the
way i wanted

Chances are that using doc#at_xpath with Nokogiri is simpler than what
you built.

wish there was a obvious way to do things in Ruby…its concise but it is
cumbersome

I think there is an obvious way (using XPath to select exactly the
nodes you want) but without you showing a proper example we cannot
show it to you. I find it a tad unfair to blame Ruby when you are not
providing proper information.

Kind regards

robert