class ERB::Compiler::TrimScanner

def initialize(src, trim_mode, percent)
  super
  @trim_mode = trim_mode
  @percent = percent
  if @trim_mode == '>'
    @scan_reg  = /(.*?)(%>\r?\n|#{(stags + etags).join('|')}|\n|\z)/m
    @scan_line = self.method(:trim_line1)
  elsif @trim_mode == '<>'
    @scan_reg  = /(.*?)(%>\r?\n|#{(stags + etags).join('|')}|\n|\z)/m
    @scan_line = self.method(:trim_line2)
  elsif @trim_mode == '-'
    @scan_reg  = /(.*?)(^[ \t]*<%\-|<%\-|-%>\r?\n|-%>|#{(stags + etags).join('|')}|\z)/m
    @scan_line = self.method(:explicit_trim_line)
  else
    @scan_reg  = /(.*?)(#{(stags + etags).join('|')}|\n|\z)/m
    @scan_line = self.method(:scan_line)
  end
end