Close #2323 .

Checklist

• only relevant code is changed (make a diff before you submit the PR)
• run tests npm run test
• tests are included
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Feature

Use formatting functions with interpolation and plurals in the nesting "$t" function.

Example:

$t(ns:key, { count: {{count}}, arg1: "{{arg1}}", arg2: "{{arg2}}" }, formatter1, formatter2)

Note: you should not put formatters before the nesting option object. Because this is not only illogical, but also increases the complexity of the code. For example, the following code will not work properly.

$t(ns:key, formatter1, formatter2, { "count": {{count}}, "arg1": "{{arg1}}", "arg2": "{{arg2}}" })
$t(ns:key, formatter1, { "count": {{count}}, "arg1": "{{arg1}}", "arg2": "{{arg2}}" }, formatter2)

Additional Info

doReduce

Here is a variable doReduce, but I don't understand what it does, so I replaced it with formatters.length.

nestingRegexp

I found that the part that determines the $t() function currently uses a simple regular expression to match. Ignoring custom configuration, its default value is /\$t\((.+?)\)/. This means that if you include a right parenthesis inside the function, it will break the function from working properly. For example:

$t(key, { "name": "foo(bar)baz" })

This will break the function. However, since this part is beyond the scope of the target issue, I will not fixed it yet. I'm just giving a heads up.