Module: StreamParser::HTML

Defined in:
lib/stream_parser/html.rb

Defined Under Namespace

Classes: Tag

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/stream_parser/html.rb', line 5

def self.included(base)
  base.include(StreamParser)
end

Instance Method Details

#html_tag_value ⇒ Object 



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# File 'lib/stream_parser/html.rb', line 96

def html_tag_value
  gobble(/\s+/)
  case peek(1)
  when '"', "'"
    quote_char = next_char
    forward(1)
    quoted_value(quote_char)
  else
    scan_until(/[^>\s\/=]+/)[0]
  end
end

#next_end_tag(name) ⇒ Object 



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# File 'lib/stream_parser/html.rb', line 108

def next_end_tag(name)
  scan_until(/<\/\s*li>/)
end

#next_tag(old_index: nil) ⇒ Object 



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# File 'lib/stream_parser/html.rb', line 9

def next_tag(old_index: nil)
  old_index ||= @index
  return unless scan_until(/<\s*/)
  start_index = @index-1

  while peek(3) == '!--'
    forward(3)
    scan_until(/-->\s*/)
    scan_until(/<\s*/)
  end
  
  # HTMLComment.new(pre_match)
  if peek(1) == '/'
    scan_until(/[^>\s\/]+/)
    scan_tag(match, old_index: old_index, start_index: start_index, closing: true)
  else
    scan_until(/[^>\s\/]+/)
    scan_tag(match, old_index: old_index, start_index: start_index) 
  end
end

#scan_for_closing_tag ⇒ Object 



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# File 'lib/stream_parser/html.rb', line 39

def scan_for_closing_tag
  old_index = @index
  heap = []
  
  tag = next_tag
  puts tag.inspect
  while tag && !(tag.closing? && heap.empty?)
    if !tag.closing? && !tag.self_closing?
      heap << tag
    elsif !tag.self_closing?
      heap.pop
    end
    tag = next_tag(old_index: old_index)
  end
  @old_index = old_index
  tag
end

#scan_for_tag(name, closing: nil, **attributes) ⇒ Object 



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# File 'lib/stream_parser/html.rb', line 30

def scan_for_tag(name, closing: nil, **attributes)
  old_index ||= @index
  tag = next_tag
  while tag && !tag.match(name: name, closing: closing, attributes: attributes)
    tag = next_tag(old_index: old_index)
  end
  tag
end

#scan_tag(name, closing: false, old_index:, start_index:) ⇒ Object 



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# File 'lib/stream_parser/html.rb', line 57

def scan_tag(name, closing: false, old_index:, start_index:)
  tag = Tag.new(name, closing)
  
  while !eos?
    gobble(/\s+/)
    key = case peek(1)
    when '>'
      forward(1)
      @old_index = old_index
      @match = @source[start_index...@index]
      return tag
    when '/'
      forward(1)
      gobble(/\s*\>/)
      @old_index = old_index
      @match = @source[start_index...@index]
      tag.self_closing = true
      return tag
    when '"', "'"
      quote_char = next_char
      forward(1)
      quoted_value(quote_char)
    else
      scan_until(/[^>\s\/=]+/)[0]
    end
    
    tag[key] = if next?(/\s*=/)
      gobble(/\s*=/)
      html_tag_value
    else
      true
    end
  end

  @old_index = old_index
  @match = @source[start_index...@index]
  tag
end