PluralRule lacking support for new operands

[qixils]

Overview Description

PluralRule is not updated to conform to the latest versions of CLDR and does not support the new operands c or e

Steps to Reproduce

Attempt to parse French plural rules: PluralRule.parse({"one":"i = 0,1","many":"e = 0 and i != 0 and i % 1000000 = 0 and v = 0 or e != 0..5","other":""})

Actual Results

Throws a RuleError: malformed CLDR pluralization rule. Got unexpected 'e'

Expected Results

Parses the rules successfully

Reproducibility

Consistent

Additional Information:

Using babel-2.9.1 from pypi

[akx]

Babel 2.9 does not support those new rules, that's correct.

CLDR 40 support is coming in #826 (likely Babel 2.10); it will have support for parsing those operands (but nothing else around them).