Question

Currently I am facing problem with UNICODE character on my Rails 3 project.
In Khmer character number(unicode character) letter “៤” is equal to 4.
I want to compare ៤ >= 3 but can’t.
Can anyone suggest me some idea about how to compare that? May be there are some method could convert ៤ to 4 so that I can do compare.
Note
I can type ៤ by switching keyboard from Eng to Khm and type 4 as normal.

Thanks

Answer 1

Do the numbers behave in the same way like arabic numerals? Then, you can use this little helper method to convert a Khmer-number string to an integer:

# encoding: utf-8

class String
  def to_khmer
    num_string = chars.map{ |c| %w[០ ១ ២ ៣ ៤ ៥ ៦ ៧ ៨ ៩].index(c) || c }.join
    if num_string =~ /\./
      num_string.to_f
    else
      num_string.to_i
    end
  end
end