Class: Eggshell::Bundles::Basic::ListBlocks

Inherits:
Object
  • Object
show all
Includes:
Eggshell::BlockHandler, Eggshell::BlockHandler::BlockParams, Eggshell::BlockHandler::HtmlUtils
Defined in:
lib/eggshell/bundles/basics.rb

Constant Summary collapse

START_LIST = 
/^(ol|ul|dl)[(.]/
START_LIST_SHORT = 
/^\s*([#>-])/

Constants included from Eggshell::BlockHandler::HtmlUtils

Eggshell::BlockHandler::HtmlUtils::HASH_HTML_ESCAPE

Constants included from Eggshell::BlockHandler::BlockParams

Eggshell::BlockHandler::BlockParams::ATTRIBUTES, Eggshell::BlockHandler::BlockParams::CLASS, Eggshell::BlockHandler::BlockParams::ID, Eggshell::BlockHandler::BlockParams::KEYS, Eggshell::BlockHandler::BlockParams::STYLE

Constants included from Eggshell::BlockHandler

Eggshell::BlockHandler::COLLECT, Eggshell::BlockHandler::COLLECT_RAW, Eggshell::BlockHandler::DONE, Eggshell::BlockHandler::RETRY

Instance Method Summary collapse

Methods included from Eggshell::BlockHandler::HtmlUtils

#attrib_string, #create_tag, #css_string, #html_escape, #inject_attribs

Methods included from Eggshell::BlockHandler::BlockParams

#get_block_params, #set_block_params

Methods included from Eggshell::BlockHandler

#current_type, #reset, #set_processor

Methods included from Eggshell::BaseHandler

#set_processor

Constructor Details

#initialize ⇒ ListBlocks

Returns a new instance of ListBlocks.



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# File 'lib/eggshell/bundles/basics.rb', line 339

def initialize
	@block_types = ['ul', 'ol', 'dl']
end

Instance Method Details

#can_handle(line) ⇒ Object 



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# File 'lib/eggshell/bundles/basics.rb', line 346

def can_handle(line)
	match = START_LIST.match(line)
	if match
		@block_type = match[1]
		return BH::COLLECT
	end

	match = START_LIST_SHORT.match(line)
	if match
		if match[1] == '>'
			@block_type = 'dl'
		else
			@block_type = match[1] == '-' ? 'ul' : 'ol'
		end
		return BH::COLLECT
	end
	
	return BH::RETRY
end

#continue_with(line) ⇒ Object 



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# File 'lib/eggshell/bundles/basics.rb', line 366

def continue_with(line)
	if line == nil || line == "" || !START_LIST_SHORT.match(line)
		return BH::RETRY
	else
		return BH::COLLECT
	end
end

#equal?(handler, type) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/eggshell/bundles/basics.rb', line 436

def equal?(handler, type)
	self.class == handler.class && (type == 'ol' || type == 'ul')
end

#process(type, args, lines, out, call_depth = 0) ⇒ Object

TODO:

support ability to add attributes to sub-lists (maybe ‘[-#] @(.…)’)



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# File 'lib/eggshell/bundles/basics.rb', line 375

def process(type, args, lines, out, call_depth = 0)
	if type == 'dl'
		# @todo
	else
		order_stack = []
		otype_stack = []
		last = nil
		first_type = nil

		if lines[0] && !lines[0].match(/[-#]/)
			line = lines.shift
		end

		lines.each do |line_obj|
			line = nil
			indent = 0
			if line_obj.is_a?(Eggshell::Line)
				line = line_obj.line
				indent = line_obj.indent_lvl
			else
				line = line_obj
			end
			ltype = line[0] == '-' ? 'ul' : 'ol'
			line = line[1..line.length].strip

			if order_stack.length == 0
				# use the given type to start; infer for sub-lists
				order_stack << create_tag(type, get_block_params(type, args[0]))
				otype_stack << type
			# @todo make sure that previous item was a list
			# remove closing li to enclose sublist
			elsif indent > (otype_stack.length-1) && order_stack.length > 0
				last = order_stack[-1]
				last = last[0...last.length-5]
				order_stack[-1] = last

				order_stack << "#{"\t"*indent}<#{ltype}>"
				otype_stack << ltype
			elsif indent < (otype_stack.length-1)
				count = otype_stack.length - 1
				while count > indent
					ltype = otype_stack.pop	
					order_stack << "#{"\t"*count}</#{ltype}>\n#{"\t"*(count-1)}</li>"
					count -= 1
				end
			end
			order_stack << "#{"\t"*indent}<li>#{line}</li>"
		end

		# close nested lists
		d = otype_stack.length
		c = 1
		otype_stack.reverse.each do |ltype|
			ident = d - c
			order_stack << "#{"\t" * ident}</#{ltype}>\n#{ident-1 >= 0 ? "\t"*(ident-1) : ''}#{c == d ? '' : "</li>"}"
			c += 1
		end
		out << @eggshell.expand_all(order_stack.join("\n"))
	end
end