@sap-ux/i18n
Version:
Library for i18n
60 lines • 1.9 kB
JavaScript
/**
* Extract i18n key.
*
* @param input input content
* @param key i18n key used. Default is `i18n`
* @returns extracted key
*/
export function extractI18nKey(input, key = 'i18n') {
const sanitizedInput = input.trim();
const regPattern = new RegExp(`^({@?${key}(>|>))`, 'g');
return sanitizedInput.replace(regPattern, '').replace(/\}$/gm, '').trim();
}
/**
* Checks if a string starts with '{{' and ends with '}}'.
*
* @param input input string to check.
* @returns boolean
*/
function doesDoubleCurlyBracketsExist(input) {
return input.startsWith('{{') && input.endsWith('}}');
}
/**
* Extracts double curly brackets key from the given input.
*
* @param input string to extract the double curly brackets key from
* @returns extracted key or undefined if open and closing double curly bracket does not exist
*/
export function extractDoubleCurlyBracketsKey(input) {
const data = input.trim();
if (!doesDoubleCurlyBracketsExist(data)) {
return undefined;
}
return data.substring(2, data.length - 2).trim();
}
/**
* Get unique key. If the key is not unique, it increment key by one and recheck.
*
* @param key new key and it is incremented
* @param i18nData I18n entries
* @param originalKey original key without any index increment
* @param counter counter for increment
* @returns unique key
*/
export function getI18nUniqueKey(key, i18nData, originalKey = key, counter = 1) {
const uniqueKey = key;
let keyExists = false;
if (Array.isArray(i18nData)) {
keyExists = i18nData.findIndex((item) => item.key.value === key) !== -1;
}
else {
keyExists = i18nData[key] !== undefined;
}
if (keyExists) {
key = `${originalKey}${counter}`;
counter++;
return getI18nUniqueKey(key, i18nData, originalKey, counter);
}
return uniqueKey;
}
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