Class: Nokogiri::XML::Node

Inherits:
Object
  • Object
show all
Defined in:
lib/Html2Feedbooks/parser.rb

Instance Method Summary collapse

Instance Method Details

#between(a, b, excl = false) ⇒ Object 



278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
 
# File 'lib/Html2Feedbooks/parser.rb', line 278

def between(a,b,excl=false)

	#from nokogiri
	offset=(excl ? -1 : 0)
	ary = []
	ele1=at(a) rescue at_xpath(a)
	ele2=at(b) rescue at_xpath(b)
	
	if ele1 and ele2
		# let's quickly take care of siblings
		if ele1.parent == ele2.parent
			
			ary = ele1.parent.children[ele1.node_position..(ele2.node_position+offset)]
		else
			# find common parent
			ele1_p=ele1.ancestors
			ele2_p=ele2.ancestors
			common_parent = ele1_p.zip(ele2_p).select { |p1, p2| p1 == p2 }.flatten.first

			child = nil
			if ele1 == common_parent
				child = ele2
			elsif ele2 == common_parent
				child = ele1
			end

			if child
				ary = common_parent.children[0..(child.node_position+offset)]
			end
		end
	end

	return Nokogiri::XML::NodeSet.new(ele1.document,ary)
end

#deep_between(i, j) ⇒ Object 



315
316
317
318
319
320
321
322
323
324
 
# File 'lib/Html2Feedbooks/parser.rb', line 315

def deep_between(i,j)
	unless j.nil? || self.at_xpath(j).nil?
		tm=self.at_xpath(i)
		prec=tm.deep_preceding
		r=Nokogiri::XML::NodeSet.new(tm.document,[*self.at(j).deep_preceding.find_all{|el| !(prec.include?el || el==tm)}])
	else
		r=self.at(i).deep_following unless self.at(i).nil?
	end
	Nokogiri::XML::NodeSet.new(self.document,[*select_end(r,i)])
end

#deep_following ⇒ Object 



369
370
371
372
373
 
# File 'lib/Html2Feedbooks/parser.rb', line 369

def deep_following()
	ret=following
	ret+=parent.deep_following if respond_to?(:parent)  && !parent.is_a?(Nokogiri::XML::Document)
	ret
end

#deep_preceding ⇒ Object 



363
364
365
366
367
368
 
# File 'lib/Html2Feedbooks/parser.rb', line 363

def deep_preceding()
	ret=Nokogiri::XML::NodeSet.new(self.document,[])
	ret+=parent.deep_preceding if respond_to?(:parent)  && !parent.is_a?(Nokogiri::XML::Document)
	ret+=preceding
	ret
end

#following ⇒ Object 



359
360
361
 
# File 'lib/Html2Feedbooks/parser.rb', line 359

def following
	self.parent.children[node_position+1..-1]
end

#in_search?(expr) ⇒ Boolean

Returns:

  • (Boolean) 


251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
 
# File 'lib/Html2Feedbooks/parser.rb', line 251

def in_search?(expr)
	if expr !~ /[^a-z0-9]/
		return self.name.downcase()==expr.downcase()	
	end

	se_in=self.root
	se_in=self.parent if self.respond_to?(:parent)
	if expr[0..1]=='/'
		se_in=self.root
	end
	set=se_in.search(expr) rescue se_in.xpath(expr)
	set.each do |el|
		return true if el==self
	end
	#		puts self.name+" "+expr
	return false
end

#node_position ⇒ Object 



273
274
275
276
 
# File 'lib/Html2Feedbooks/parser.rb', line 273

def node_position
	return @node_position if @node_position
	@node_position=parent.children.index(self)
end

#preceding ⇒ Object 



355
356
357
 
# File 'lib/Html2Feedbooks/parser.rb', line 355

def preceding
	self.parent.children[0...node_position]
end

#root ⇒ Object 



269
270
271
 
# File 'lib/Html2Feedbooks/parser.rb', line 269

def root
	self.document.root
end

#select_end(tab, expr) ⇒ Object 



326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
 
# File 'lib/Html2Feedbooks/parser.rb', line 326

def select_end(tab,expr)

	s=[]
	f=false
	idx=-1
	i=0
	tab.each do |e|
		nxp=expr.gsub(e.path,'.')
		set=e.search(nxp) rescue e.xpath(nxp)
		if set.size > 0
			idx=i
			#if e.search(i).size > 0
			if e.children.find{|ee| ee.path==expr }
				e.children.each do |ee|
					s << ee if f
					f=true if ee.path==expr
				end
			else
				s=select_end(e.children,expr)
			end
			break
		else
			i+=1
		end
		break if idx>0
	end
	return s+tab[(idx+1)..-1]
end