Class: Me2Text::Token

Inherits:
Object
  • Object
show all
Defined in:
lib/me2text/token.rb

Direct Known Subclasses

Keyword, Link, Plain

Constant Summary collapse 

begin 
  dquota_s = '\\xe2\\x80\\x9c|\\xe2\\x80\\x9f|\\xe2\\x9d\\x9d|\\xe2\\x80\\xb6|\\xe2\\x80\\x9d|\\x22|\\xef\\xbc\\x82'
  dquota_e = '\\xe2\\x80\\x9d|\\xe2\\x80\\x9e|\\xe2\\x9d\\x9e|\\xcb\\x9d|\\xe2\\x80\\xb3|\\xe2\\x80\\x9e|\\xe2\\x80\\x9f|\\x22|\\xef\\xbc\\x82'
  dquota_ne = '\\xe2\\x80\\x9d\\xe2\\x80\\x9e\\xe2\\x9d\\x9e\\xcb\\x9d\\xe2\\x80\\xb3\\xe2\\x80\\x9e\\xe2\\x80\\x9f\\x22\\xef\\xbc\\x82'
  /(?:#{dquota_s})([^#{dquota_ne}]*)(?:#{dquota_e}):(http[s]?:\/\/[^\s]*)(\s|$)/u
end
REGEX_URL = 
/(http[s]?:\/\/[^\s|^\'|^\"]*)([\'|\"|\s]|$)/u
ESCAPE_CHAR = 
"\xc2\xa0"

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#text ⇒ Object

Returns the value of attribute text.



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# File 'lib/me2text/token.rb', line 14

def text
  @text
end

Class Method Details

.join_tokens(tokens, format, options) ⇒ Object 



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# File 'lib/me2text/token.rb', line 143

def join_tokens(tokens, format, options)
  if options[:limit].nil?
    return tokens.map { |token| token.to_s(format, options) }.join
  end

  result = ""
  process_length = 0
  tokens.each_with_index do |tk, idx| 
    n_len = process_length + tk.length
    r_len = options[:limit] - n_len
    
    # 길이가 남았다.
    if r_len > 0
      process_length = process_length + tk.length
      result << tk.to_s(format, options)

    # 길이가 딱 맞다.
    elsif r_len == 0
      # 이번 토큰이 마지막 토큰(더이상 추가할 게 없음) 인가? 
      if (idx + 1) == tokens.size
        process_length = process_length + tk.length
        result << tk.to_s(format, options)
      else
        # 남은 문자열이 있다.
        val = tk.truncate(0, format, options)
        process_length = process_length + val[1]
        result << val.first
      end
      break

    # 길이가 r_len만큼 모자르다
    else
      val = tk.truncate(-r_len, format, options)
      process_length = process_length + val[1]
      result << val.first
      break
    end
  end

  result
end

.tokenize(text, options = {}) ⇒ Object 



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# File 'lib/me2text/token.rb', line 95

def tokenize(text, options = {})
  tokenize_me2link(text.gsub(/\\\"/u, ESCAPE_CHAR), options)
end

.tokenize_keyword(text, options = {}) ⇒ Object 



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# File 'lib/me2text/token.rb', line 125

def tokenize_keyword(text, options = {})
  tokens = []
  while (m = text.match(Keyword::KEYWORD_REGEX))
    tokens += tokenize_plaintext(m.pre_match, options) if !m.pre_match.empty?
    tokens << Keyword.new(m.to_s, options)
    text = m.post_match
  end        
  if !text.empty?
    tokens += tokenize_plaintext(text, options)
  end
  
  tokens
end

.tokenize_me2link(text, options = {}) ⇒ Object 



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# File 'lib/me2text/token.rb', line 99

def tokenize_me2link(text, options = {})
  tokens = []
  while (m = text.match(REGEX_ME2LINK))
    # 매치 이전 텍스트 처리
    tokens += tokenize_keyword(m.pre_match, options) if !m.pre_match.empty?
    
    url = m[2]
    anchor_text = m[1]
    if url
      if !options[:link_handler].nil?
        url = options[:link_handler].call(url, options)
      end
      tokens << Link.new(anchor_text, url, m[3].length > 0)
    else
      tokens += tokenize_keyword(anchor_text, options)
    end

    text = m.post_match
  end
  if !text.empty?
    tokens += tokenize_keyword(text, options)
  end

  tokens
end

.tokenize_plaintext(text, options = {}) ⇒ Object 



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# File 'lib/me2text/token.rb', line 139

def tokenize_plaintext(text, options = {})
  [Plain.new(text)]
end

Instance Method Details

#length(options = {}) ⇒ Object 



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# File 'lib/me2text/token.rb', line 29

def length(options ={})
  1
end

#to_html(options = {}) ⇒ Object 



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# File 'lib/me2text/token.rb', line 23

def to_html(options ={})
end

#to_s(format, options = {}) ⇒ Object 



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# File 'lib/me2text/token.rb', line 16

def to_s(format, options = {})
  unless [:html, :text].include?(format)
    raise ArgumentError.new("Unknown format: #{format.inspect}") 
  end
  self.send('to_' + format.to_s, options)
end

#to_text(options = {}) ⇒ Object 



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# File 'lib/me2text/token.rb', line 26

def to_text(options ={})
end

#truncate(nos, format, options = {}) ⇒ Object 



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# File 'lib/me2text/token.rb', line 33

def truncate(nos, format, options = {})
  options = {
    :ellipsis => "…"
  }.merge(options)

  [options[:ellipsis], 1]
end