Class: WikiCloth::WikiBuffer

Inherits:
Object
  • Object
show all
Defined in:
lib/wikicloth/wiki_buffer.rb

Direct Known Subclasses

HTMLElement, Link, Table, Var

Defined Under Namespace

Classes: HTMLElement, Link, Table, Var

Instance Method Summary collapse

Constructor Details

#initialize(data = "", options = {}) ⇒ WikiBuffer

Returns a new instance of WikiBuffer.



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# File 'lib/wikicloth/wiki_buffer.rb', line 4

def initialize(data="",options={})
  @options = options
  @options[:buffer] ||= self
  self.data = data
  self.buffer_type = nil
  @section_count = 0
  @buffers ||= [ ]
  @buffers << self
  @list_data = []
  @check_new_tag = false
  @indent = nil
  @previous_line_empty = false
  @paragraph_open = false
end

Instance Method Details

#add_char(c) ⇒ Object 



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# File 'lib/wikicloth/wiki_buffer.rb', line 151

def add_char(c)
  self.previous_char = self.current_char
  self.current_char = c

  if self.check_globals() == false
    case
    when @buffers.size == 1
      return self.new_char()
    when @buffers[-1].add_char(c) == false && self.class == WikiBuffer
      tmp = @buffers.pop
      @buffers[-1].data += tmp.send("to_#{@options[:output]}")
      # any data left in the buffer we feed into the parent
      unless tmp.data.nil?
        tmp.data.each_char { |x| self.add_char(x) }
      end
    end
  end
end

#add_word(w) ⇒ Object 



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# File 'lib/wikicloth/wiki_buffer.rb', line 128

def add_word(w)
  self.previous_char = w[-2,1]
  self.current_char = w[-1,1]
  @buffers[-1].data += w
end

#buffer_type ⇒ Object 



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# File 'lib/wikicloth/wiki_buffer.rb', line 62

def buffer_type
  @buffer_type
end

#buffers ⇒ Object 



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# File 'lib/wikicloth/wiki_buffer.rb', line 27

def buffers
  @buffers
end

#check_globals ⇒ Object 



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# File 'lib/wikicloth/wiki_buffer.rb', line 70

def check_globals()
  return false if self.class != WikiBuffer

  if previous_char == "\n" || previous_char == ""
    if @indent == @buffers[-1].object_id && current_char != " "
      @indent = nil
      # close pre tag
      cc_temp = current_char
      "</pre>\n".each_char { |c| self.add_char(c) }
      # get the parser back on the right track
      "\n#{cc_temp}".each_char { |c| @buffers[-1].add_char(c) }
      return true
    end
    if current_char == " " && @indent.nil? && ![WikiBuffer::HTMLElement,WikiBuffer::Var].include?(@buffers[-1].class)
      "\n<pre> ".each_char { |c| @buffers[-1].add_char(c) }
      @indent = @buffers[-1].object_id
      return true
    end
  end

  if @buffers[-1].run_globals?
    # new html tag
    if @check_new_tag == true && current_char =~ /([a-z])/ && !@buffers[-1].skip_html?
      @buffers[-1].data.chop!
      parent = @buffers[-1].element_name if @buffers[-1].class == WikiBuffer::HTMLElement
      @buffers << WikiBuffer::HTMLElement.new("",@options,parent)
    end
    @check_new_tag = current_char == '<' ? true : false

    # global
    case
    # start variable
    when previous_char == '{' && current_char == '{'
      if @buffers[-1].instance_of?(WikiBuffer::Var) && @buffers[-1].tag_start == true
        @buffers[-1].tag_size += 1
      else
        @buffers[-1].data.chop! if @buffers[-1].data[-1,1] == '{'
        @buffers << WikiBuffer::Var.new("",@options)
      end
      return true

    # start link
    when current_char == '[' && previous_char != '[' && !@buffers[-1].skip_links?
      @buffers << WikiBuffer::Link.new("",@options)
      return true

    # start table
    when previous_char == '{' && current_char == "|"
      @buffers[-1].data.chop!
      @buffers << WikiBuffer::Table.new("",@options)
      return true

    end
  end

  return false
end

#data ⇒ Object 



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# File 'lib/wikicloth/wiki_buffer.rb', line 39

def data
  @data ||= ""
end

#debug ⇒ Object 



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# File 'lib/wikicloth/wiki_buffer.rb', line 19

def debug
  self.params[0].blank? ? self.class.to_s : self.params[0]
end

#eof ⇒ Object 



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# File 'lib/wikicloth/wiki_buffer.rb', line 134

def eof()
  return if @buffers.size == 1

  if self.class == WikiBuffer
    while @buffers.size > 1
      @buffers[-1].eof()
      tmp = @buffers.pop
      @buffers[-1].data += tmp.send("to_#{@options[:output]}")
      unless tmp.data.blank?
        tmp.data.each_char { |x| self.add_char(x) }
      end
    end
  else
    # default cleanup tasks
  end
end

#get_param(name, default = nil) ⇒ Object 



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# File 'lib/wikicloth/wiki_buffer.rb', line 47

def get_param(name,default=nil)
  ret = nil
  self.params.each do |param|
    ret = param[:value] if param.instance_of?(Hash) && param[:name] == name
  end
  ret.nil? ? default : ret
end

#in_template? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/wikicloth/wiki_buffer.rb', line 55

def in_template?
  @options[:buffer].buffers.each do |b|
    return true if b.instance_of?(WikiBuffer::HTMLElement) && b.element_name == "template"
  end
  false
end

#params ⇒ Object 



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# File 'lib/wikicloth/wiki_buffer.rb', line 43

def params
  @params ||= [ "" ]
end

#run_globals? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/wikicloth/wiki_buffer.rb', line 23

def run_globals?
  true
end

#skip_html? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/wikicloth/wiki_buffer.rb', line 31

def skip_html?
  false
end

#skip_links? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/wikicloth/wiki_buffer.rb', line 35

def skip_links?
  false
end

#to_html ⇒ Object 



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# File 'lib/wikicloth/wiki_buffer.rb', line 66

def to_html
  self.params.join("\n") + (@list_data.empty? ? "" : render_list_data()) + (@paragraph_open ? "</p>" : "")
end