Hello Ross, thanks for your quick response!
anyway, i am on the other situation, using Woocommerce with wpml with one language, two currency.
so, i have only a currency switcher, and the website is in english.
http://wpml.org/documentation/related-projects/woocommerce-multilingual/multi-currency-support-woocommerce/
when you switch from one currency to other, the price on products change with correct symbol, and with default for example, woo commerce price filter widget, it change the currency.
in this case, where your plugin allow to insert the symbol, the only way i m thinking is with some way of conditional widget, where i show one or the other widget, accordly to currency, and i build two search form, identical, with the currency set up on each one. I only can-t find around if wpml give this kind of support of checking condition for currency on widget, like it do for language like this
ICL_LANGUAGE_CODE == ‘en’
http://wpml.org/2011/03/howto-display-different-widgets-per-language/
Thanks for the guide for multi language form!
g