Method: String::Mask#&

Defined in:
lib/strmask.rb

#&(other) ⇒ Object

Mask AND. Only where they are then same filters through.

  "abc..123"      "ab..789."
& "ab..789."    | "abc..123"
  ----------      ----------
  "ab......"      "ab......"



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# File 'lib/strmask.rb', line 149

def &(other)
  other = convert(other)
  i = 0
  o = ''
  while i < to_str.size
    if (c = to_str[i,1]) == other[i,1]
      o << c
    else
      o << ESC
    end
    i += 1
  end
  self.class.new(o)
end