@mediafly/translate/src/format.js

Translate strings extracted from apps using Google Translate

var _ = require('lodash')
var path = require('path')
var config = require(path.join(process.cwd(), 'mediafly-translate.config'))
var flatten = require('flat')
var xmlJs = require('xml-js')

function removeFirstAndLastChar(string) {
	return string.substr(1).slice(0, -1)
}

function separateByNewLines(string) {
	return string.split(/\r?\n/).filter(s => s.trim().length > 0)
}

function escapeCharsForiOS(string) {
	return string.replace(/\\/g, '\\\\')
		.replace(/"/g, '\\"')
}

function removeEscapedCharsForiOS(string) {
	return string.replace(/\\"/g, '"')
		.replace(/\\\\/g, '\\')
}

function escapeCharsForAndroid(string) {
	return string.replace(/'/g, "\\'")
}

function removeEscapedCharsForAndroid(string) {
	if (!string) {
		return string
	}
	return string.replace(/\\'/g, "'")
}

function parseKey(string) {
	var whiteSpaceRemoved = string.split('=')[0].trim()
	var quotesRemoved = removeFirstAndLastChar(whiteSpaceRemoved)
	return removeEscapedCharsForiOS(quotesRemoved)
}

function parseValue(string) {
	var whiteSpaceRemoved = string.split('=')[1].trim()
	var semiColonRemoved = _.trimEnd(whiteSpaceRemoved, ';')
	var quotesRemoved = removeFirstAndLastChar(semiColonRemoved)
	return removeEscapedCharsForiOS(quotesRemoved)
}

function transform(obj) {
	//transform JavaScript object to a string that will be written to disk
	if (config.format === 'strings') {
		var objWithEscapedChars = _.mapValues(
			_.mapKeys(obj, (value, key) => escapeCharsForiOS(key)), (value) => escapeCharsForiOS(value)
		)
		var keys = Object.keys(objWithEscapedChars)
		return keys
			.map(key => `"${key}" = "${objWithEscapedChars[key]}";`)
			.join('\n')
	}

	if (config.format === 'xml') {
		var xmlObj = {
			_declaration: {"_attributes":{"version":"1.0","encoding":"UTF-8"}},
			resources: {
				string: []
			}
		}

		_.forOwn(obj, (value, key) => xmlObj.resources.string.push({
			_text: escapeCharsForAndroid(value),
			_attributes: { name: key }
		}))

		return xmlJs.js2xml(xmlObj, { compact: true, spaces: 4 })
	}

	var unflattenedObj = flatten.unflatten(obj)

	if (config.format === 'js') {
		return 'export default ' + JSON.stringify(unflattenedObj, null, 4)
	}

	if (!config.format || config.format === 'json') {
		return JSON.stringify(unflattenedObj, null, 4)
	}
}

module.exports = {
	removeEscapedCharsForAndroid,
	separateByNewLines,
	parseKey,
	parseValue,
	transform
}