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[Help-smalltalk] i18n numeric printing/formating

From: Holger Freyther
Subject: [Help-smalltalk] i18n numeric printing/formating
Date: Sun, 18 Oct 2015 10:47:02 +0800

Dear Mark,

I finally had time to look into the issue and it is mostly about calculating the
groups. E.g. with:

        lang := I18N.LcNumeric language: 'en_US'.
        lang computeNumberOfGroups: 3 => 2
        lang computeNumberOfGroups: 7 => 2

it explains why "123" ends up as ",123" and why "1234567" ends up with

According to the OSX manpage for grouping:

  The sizes of the groups of digits, except for currency values.
  This is a pointer to a vector of integers, each of size char, rep-
  resenting group size from low order digit groups to high order
  (right to left).  The list may be terminated with 0 or CHAR_MAX.
  If the list is terminated with 0, the last group size before the 0
  is repeated to account for all the digits.  If the list is termi-
  nated with CHAR_MAX, no more grouping is performed.

For en_US the grouping is #[3 3] and it looks like the matching
code has issues with exact matches.


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