Enhance the Fixnum class with a XML escaped character conversion.

Methods
Constants
XChar = Builder::XChar if ! defined?(XChar)
Public Instance methods
xchr()

XML escaped version of chr

[ show source ]

    # File lib/builder/xchar.rb, line 93
93:   def xchr
94:     n = XChar::CP1252[self] || self
95:     n = 42 unless XChar::VALID.find {|range| range.include? n}
96:     XChar::PREDEFINED[n] or (n<128 ? n.chr : "&##{n};")
97:   end