Class: CountLnString

Inherits:
String
  • Object
show all
Defined in:
lib/erbpp/line_number.rb

Instance Method Summary collapse

Constructor Details

#initialize(filename) ⇒ CountLnString

Returns a new instance of CountLnString.



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# File 'lib/erbpp/line_number.rb', line 3

def initialize(filename)
  @filename = filename
  @lnchar = "\n"
  @buf = ""
  @str = ""
  @countln = 1
  @current = 1
  super("\n"+report_line)
end

Instance Method Details

#concat0(s) ⇒ Object 



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# File 'lib/erbpp/line_number.rb', line 17

def concat0(s)
  ln(caller[0])
  @buf.concat(s)
  @str.concat(s)
end

#concat1(s) ⇒ Object 



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# File 'lib/erbpp/line_number.rb', line 23

def concat1(s)
  ln(caller[0])
  @buf.concat(s)
end

#d(s) ⇒ Object 



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# File 'lib/erbpp/line_number.rb', line 84

def d(s)
  p [s, [x,y], r]
  r
end

#final ⇒ Object 



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# File 'lib/erbpp/line_number.rb', line 89

def final
  concat(@buf)
end

#ln(status = nil) ⇒ Object 



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# File 'lib/erbpp/line_number.rb', line 28

def ln(status=nil)
  case status
  when /:(\d+):/
    n = $1.to_i
  else
    n = status.to_i
  end
  return if n == @current
  if @current != @countln || @postpone
    if /\A\s*\z/ =~ @str || /\A#line / =~ @buf
      @postpone = true
    elsif @in_comment
      @postpone = false
    else
      if self[-1] != "\n"
        concat("\n")
      end
      concat(report_line)
      @postpone = false
    end
  end
  concat(@buf)

  b = @buf.gsub(/".*?(?<!\\)"/,'""')
  /^.*(\/\*)(.*?)$/ =~ b
  x = $2
  /^.*(\*\/)(.*?)$/ =~ b
  y = $2
  if x
    if y
      if x.size < y.size
        #:in_comment
        @in_comment = true
      else
        #:out_comment
        @in_comment = false
      end
    else
      #:in_comment
      @in_comment = true
    end
  else
    if y
      #:out_comment
      @in_comment = false
    else
      #:keep
    end
  end

  @countln = @current + @buf.count(@lnchar)
  @current = n
  @buf = ""
  @str = ""
end

#report_line ⇒ Object 



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# File 'lib/erbpp/line_number.rb', line 13

def report_line
  "#line #{@current} \"#{@filename}\"\n"
end