Re: [bug-gettext] Plural rule definitions

[Michele Locati]

2015-05-22 9:55 GMT+02:00 Daiki Ueno <address@hidden>:

Michele Locati <address@hidden> writes:

[...]
Yes, my intent was to make the output resemble the current style of
plural-table.c as much as possible, to make the initial diff smaller.
[...]
BTW, for samples, I plan to add a separate array, say
plural_sample_table to avoid confusion.

 It's a good compromise ;)

[...]
I hit on an algorithm:

- From all rules, find the largest modulo M (here 100)

- Prepare a bit vector with M elements and initialize it with zeros

- Loop over the rules
  - For each value in the range [1, M], apply a rule, and flip the
    corresponding bit if it evaluates true
  - Stop if all bits are set

Maybe we can also omit rules which don't change the vector, but it seems
to work with the Russian case so far:
http://git.savannah.gnu.org/cgit/gettext.git/tree/gettext-tools/src/cldr-plural-exp.c?h=wip/ueno/cldr-plural#n546

I started from the assumption that languages won't change that much, but your approach is a much better solution IMHO.

Did you tested if for the other special case (pl - Polish) too?

Ciao

--

Michele