Support for string interpolation

[jzaefferer]

As if localization isn't fun enough already, we should consider venturing into the minefield of string interpolation. This ticket should host some discussion around that, gathering resources and the like.

From #72, an example how string interpolation, printf-style, could be used:

Globalize.addCultureInfo("en", {
    messages: {
        "characterLeft": "%0n characters left"
    }
});
Globalize.addCultureInfo("de", {
    messages: {
        "characterLeft": "verbliebene Zeichen: %0n"
    }
});

Resulting in:

var localized = Globalize.localize("charactersLeft", [23]);
// en: "23 character left"
// de: "verbliebene Zeichen: 23"

An interesting reference implementation is Alex Sexton's messageformat.js: https://github.com/SlexAxton/messageformat.js

[scottgonzalez]

There are issues with printf style messages. Just ask Alex :-)

[jzaefferer]

This ticket was supposed to not be specific to printf-style message, not sure though what a better title could be.

[jzaefferer]

This is out of scope of Globalize, at least until we get a grip on all the issues we have within our existing scope. There's other projects working on this, like Jed: https://github.com/SlexAxton/Jed