Flask ICU

Implements i18n and l10n support for Flask using the industry standard ICU.

Understanding ICU Syntax

Simple example:

I have {numCats, plural
  =0 {no cats}
  one {one cat}
  other {{numCats} cats}}.

Consult these links in order to better understand ICU syntax:

• http://userguide.icu-project.org/formatparse/messages
• http://formatjs.io/guides/message-syntax/

API

format()

format('You have {num} messages.', {'num': 3})
# => You have 3 messages.

format_date()

format_date(datetime(2010, 4, 12, 13, 46))
# => Apr 12, 2010

format_time()

format_time(datetime(2010, 4, 12, 13, 46))
# => 1:46:00 PM

format_datetime()

format_datetime(datetime(2010, 4, 12, 13, 46))
# => Apr 12, 2010, 3:46:00 PM

format_number()

format_number(1099)
# => 1,099

format_decimal()

format_decimal(Decimal('1010.99'))
# => 1,010.99

format_currency()

format_currency(1099, 'ILS')
# => ₪1,099.00

format_scientific()

format_scientific(10000)
# => 1E4

format_percent()

format_percent(0.19)
# => 19%

Contribution Notes

Contributions are welcome. Please contact me if you are interested in making a contribution.

The tests include a limited number of translation messages. The process for extracting these messages requires the use of pybabel and po2json. Here are the steps:

1. Use pybabel to extract messages from tests file
2. Initialize translation files
3. Use po2json to generate json translation files