Allow parsing of symbols to get to currency code.

[LaughInJar]

Babel allows to "speak" any locale but no to understand other locales.

Similar to get_currency_name() and get_currency_symbol() from the currency code, there should be a method allowing to get the currency code from the symbol, e.g.

>>> from babel.numbers import get_currency_code
>>> get_currency_code('$', locale='en_US')
'USD'
>>> get_currency_code(u'\u20ac', locale='de_DE') 
'EUR'.

Even better would be a reverse method to format_currency(), e.g.

>>> from babel.numbers import parse_currency
>>> parse_currency(u'123,45 \u20ac', locale='de_DE')
(123.45, 'EUR')

I see that "Locale.parse(locale).currency_symbols" already contains the required mapping for this.

Cheers, Simon

[rojaraniiza]

---> 21 from babel.numbers import parse_currency
22 # from babel.numbers import get_currency_code
ImportError: cannot import name 'parse_currency'
Can you please help me out to fix this?

[akx]

@rojaraniiza The issue is there is no such function yet. This is a proposal to implement one.