[Bugs] #1649 UNSP: calculate support for arabic numbers

[Sugar Labs Bugs]

#1649: calculate support for arabic numbers
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    Reporter:  javedkhan                  |          Owner:  garycmartin                
        Type:  enhancement                |         Status:  new                        
    Priority:  Unspecified by Maintainer  |      Milestone:  Unspecified by Release Team
   Component:  Calculate                  |        Version:  Unspecified                
    Severity:  Unspecified                |       Keywords:                             
Distribution:  OLPC                       |   Status_field:  Unconfirmed                
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Comment(by cjl):

 I beleive gettext can help with this by using %Id in place of %d when
 translating the UI strings into Arabic.  I'm not sure how much work is
 needed on the backend.

 http://www.gnu.org/software/gettext/manual/gettext.html#c_002dformat

 "As a special feature for Farsi (Persian) and maybe Arabic, translators
 can insert an ‘I’ flag into numeric format directives. For example, the
 translation of "%d" can be "%Id". The effect of this flag, on systems with
 GNU libc, is that in the output, the ASCII digits are replaced with the
 ‘outdigits’ defined in the LC_CTYPE locale category. On other systems, the
 gettext function removes this flag, so that it has no effect.

 Note that the programmer should not put this flag into the untranslated
 string. (Putting the ‘I’ format directive flag into an msgid string would
 lead to undefined behaviour on platforms without glibc when NLS is
 disabled.)"

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Ticket URL: <http://bugs.sugarlabs.org/ticket/1649#comment:3>
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