identify_string

# File lib/rdoc/parser/ruby.rb, line 1191
  def identify_string(ltype, quoted = ltype, opener=nil, initial_char = nil)
    @ltype = ltype
    @quoted = quoted
    subtype = nil

    str = ""
    str << initial_char if initial_char
    str << (opener||quoted)

    nest = 0
    begin
      while ch = getc
        str << ch
        if @quoted == ch
          if nest == 0
            break
          else
            nest -= 1
          end
        elsif opener == ch
          nest += 1
        elsif @ltype != "'" && @ltype != "]" and ch == "#"
          ch = getc
          if ch == "{"
            subtype = true
            str << ch << skip_inner_expression
          else
            ungetc(ch)
          end
        elsif ch == '\' #'
          str << read_escape
        end
      end
      if @ltype == "/"
        if peek(0) =~ /i|o|n|e|s/
          str << getc
        end
      end
      if subtype
        Token(DLtype2Token[ltype], str)
      else
        Token(Ltype2Token[ltype], str)
      end.set_text(str)
    ensure
      @ltype = nil
      @quoted = nil
      @lex_state = EXPR_END
    end
  end