module Twitter::TwitterText::Unicode
This module lazily defines constants of the form Uxxxx for all Unicode
codepoints from U0000 to U10FFFF. The value of each constant is the UTF-8 string for the codepoint. Examples:
copyright = Unicode::U00A9 euro = Unicode::U20AC infinity = Unicode::U221E
Constants
- CODEPOINT_REGEX
Public Class Methods
const_missing(name)
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# File lib/twitter-text/unicode.rb, line 18 def self.const_missing(name) # Check that the constant name is of the right form: U0000 to U10FFFF if name.to_s =~ CODEPOINT_REGEX # Convert the codepoint to an immutable UTF-8 string, # define a real constant for that value and return the value #p name, name.class const_set(name, [$1.to_i(16)].pack("U").freeze) else # Raise an error for constants that are not Unicode. raise NameError, "Uninitialized constant: Unicode::#{name}" end end