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hablar

v0.2.1

Published

A JavaScript library useful for compiling i18n translations in a custom language to JavaScript functions.

Downloads

852

Readme

hablar.js

A JavaScript library useful for compiling i18n translations written in a DSL to JavaScript functions.

This is very much still a work in progress

With an API that is to be considered unstable.

DSL

The DSL is defined in JISON files (see src/parsers/grammars). But to illustrate the key parts of the language here is an example:

Hello $name, it has been {{formatDate($timeSinceLastVisit, "months"}} since your last visit.

This would roughly translate into the following javascript function:

function(parameters, functions) {
	return 'Hello ' + parameters.name + ', it has been ' + functions['formatDate'](parameters.timeSinceLastVisit, 'months') + ' since your last visit.';
}

It is worth noting that the actual function generated includes various rules regarding escaping output, that complicates the actual function.

Constraints

Sometimes we need to use a different translation string based on the input variables. Think situations where a you need to show the number of items in a shopping basket. If there are 0 items in the basket we might want to show something like You have no items in your basket.. If there is 1 item we might want to show You have one item in your basket., and otherwise You have $n items in your basket.

This is supported by adding constraints to the variables, basically allowing a series of if-statements to be generated inside the function.