angular-l10n
Version:
Angular library to translate texts, dates and numbers
167 lines • 25.3 kB
JavaScript
import { l10nError } from './l10n-error';
export function validateLanguage(language) {
const regExp = new RegExp(/^([a-z]{2,3})(\-[A-Z][a-z]{3})?(\-[A-Z]{2})?(-u.+)?$/);
return regExp.test(language);
}
export function formatLanguage(language, format) {
if (language == null || language === '')
return '';
if (!validateLanguage(language))
throw l10nError(formatLanguage, 'Invalid language');
const [, LANGUAGE = '', SCRIPT = '', REGION = ''] = language.match(/^([a-z]{2,3})(\-[A-Z][a-z]{3})?(\-[A-Z]{2})?/) || [];
switch (format) {
case 'language':
return LANGUAGE;
case 'language-script':
return LANGUAGE + SCRIPT;
case 'language-region':
return LANGUAGE + REGION;
case 'language-script-region':
return LANGUAGE + SCRIPT + REGION;
}
}
export function parseLanguage(language) {
const groups = language.match(/^([a-z]{2,3})(\-([A-Z][a-z]{3}))?(\-([A-Z]{2}))?(-u.+)?$/);
if (groups == null)
throw l10nError(parseLanguage, 'Invalid language');
return {
language: groups[1],
script: groups[3],
region: groups[5],
extension: groups[6]
};
}
export function getBrowserLanguage(format) {
let browserLanguage = null;
if (typeof navigator !== 'undefined' && navigator.language) {
switch (format) {
case 'language-region':
case 'language-script-region':
browserLanguage = navigator.language;
break;
default:
browserLanguage = navigator.language.split('-')[0];
}
}
return browserLanguage;
}
export function getSchema(schema, language, format) {
const element = schema.find(item => formatLanguage(item.locale.language, format) === language);
return element;
}
export function getValue(key, data, keySeparator) {
if (data) {
if (keySeparator) {
return key.split(keySeparator).reduce((acc, cur) => (acc && acc[cur]) != null ? acc[cur] : null, data);
}
return data[key] != null ? data[key] : null;
}
return null;
}
export function handleParams(value, params) {
const replacedValue = value.replace(/{{\s?([^{}\s]*)\s?}}/g, (substring, parsedKey) => {
const replacer = params[parsedKey];
return replacer !== undefined ? replacer : substring;
});
return replacedValue;
}
export function mergeDeep(target, source) {
const output = Object.assign({}, target);
if (isObject(target) && isObject(source)) {
Object.keys(source).forEach((key) => {
if (isObject(source[key])) {
if (!(key in target)) {
Object.assign(output, { [key]: source[key] });
}
else {
output[key] = mergeDeep(target[key], source[key]);
}
}
else {
Object.assign(output, { [key]: source[key] });
}
});
}
return output;
}
export function toNumber(value) {
const parsedValue = typeof value === 'string' && !isNaN(+value - parseFloat(value)) ? +value : value;
return parsedValue;
}
export function toDate(value) {
if (isDate(value)) {
return value;
}
if (typeof value === 'number' && !isNaN(value)) {
return new Date(value);
}
if (typeof value === 'string') {
value = value.trim();
if (!isNaN(value - parseFloat(value))) {
return new Date(parseFloat(value));
}
if (/^(\d{4}-\d{1,2}-\d{1,2})$/.test(value)) {
const [y, m, d] = value.split('-').map((val) => +val);
return new Date(y, m - 1, d);
}
const match = value.match(/^(\d{4})-?(\d\d)-?(\d\d)(?:T(\d\d)(?::?(\d\d)(?::?(\d\d)(?:\.(\d+))?)?)?(Z|([+-])(\d\d):?(\d\d))?)?$/);
if (match) {
return isoStringToDate(match);
}
}
const date = new Date(value);
if (!isDate(date)) {
throw l10nError(toDate, 'Invalid date');
}
return date;
}
export const PARSE_DATE_STYLE = {
full: { weekday: 'long', year: 'numeric', month: 'long', day: 'numeric' },
long: { year: 'numeric', month: 'long', day: 'numeric' },
medium: { year: 'numeric', month: 'short', day: 'numeric' },
short: { year: '2-digit', month: 'numeric', day: 'numeric' }
};
export const PARSE_TIME_STYLE = {
full: { hour: 'numeric', minute: 'numeric', second: 'numeric', timeZoneName: 'long' },
long: { hour: 'numeric', minute: 'numeric', second: 'numeric', timeZoneName: 'short' },
medium: { hour: 'numeric', minute: 'numeric', second: 'numeric' },
short: { hour: 'numeric', minute: 'numeric' }
};
export function parseDigits(digits) {
const groups = digits.match(/^(\d+)?\.((\d+)(\-(\d+))?)?$/);
if (groups == null)
throw l10nError(parseDigits, 'Invalid digits');
return {
minimumIntegerDigits: groups[1] ? parseInt(groups[1]) : undefined,
minimumFractionDigits: groups[3] ? parseInt(groups[3]) : undefined,
maximumFractionDigits: groups[5] ? parseInt(groups[5]) : undefined,
};
}
function isObject(item) {
return typeof item === 'object' && !Array.isArray(item);
}
function isDate(value) {
return value instanceof Date && !isNaN(value.valueOf());
}
/**
* Converts a date in ISO 8601 to a Date.
*/
function isoStringToDate(match) {
const date = new Date(0);
let tzHour = 0;
let tzMin = 0;
const dateSetter = match[8] ? date.setUTCFullYear : date.setFullYear;
const timeSetter = match[8] ? date.setUTCHours : date.setHours;
if (match[9]) {
tzHour = Number(match[9] + match[10]);
tzMin = Number(match[9] + match[11]);
}
dateSetter.call(date, Number(match[1]), Number(match[2]) - 1, Number(match[3]));
const h = Number(match[4] || 0) - tzHour;
const m = Number(match[5] || 0) - tzMin;
const s = Number(match[6] || 0);
const ms = Math.round(parseFloat('0.' + (match[7] || 0)) * 1000);
timeSetter.call(date, h, m, s, ms);
return date;
}
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{ L10nFormat, L10nSchema } from './types';\r\nimport { l10nError } from './l10n-error';\r\n\r\nexport function validateLanguage(language: string): boolean {\r\n    const regExp = new RegExp(/^([a-z]{2,3})(\\-[A-Z][a-z]{3})?(\\-[A-Z]{2})?(-u.+)?$/);\r\n    return regExp.test(language);\r\n}\r\n\r\nexport function formatLanguage(language: string, format: L10nFormat): string {\r\n    if (language == null || language === '') return '';\r\n    if (!validateLanguage(language)) throw l10nError(formatLanguage, 'Invalid language');\r\n\r\n    const [, LANGUAGE = '', SCRIPT = '', REGION = ''] = language.match(/^([a-z]{2,3})(\\-[A-Z][a-z]{3})?(\\-[A-Z]{2})?/) || [];\r\n    switch (format) {\r\n        case 'language':\r\n            return LANGUAGE;\r\n        case 'language-script':\r\n            return LANGUAGE + SCRIPT;\r\n        case 'language-region':\r\n            return LANGUAGE + REGION;\r\n        case 'language-script-region':\r\n            return LANGUAGE + SCRIPT + REGION;\r\n    }\r\n}\r\n\r\nexport function parseLanguage(language: string) {\r\n    const groups = language.match(/^([a-z]{2,3})(\\-([A-Z][a-z]{3}))?(\\-([A-Z]{2}))?(-u.+)?$/);\r\n    if (groups == null) throw l10nError(parseLanguage, 'Invalid language');\r\n\r\n    return {\r\n        language: groups[1],\r\n        script: groups[3],\r\n        region: groups[5],\r\n        extension: groups[6]\r\n    };\r\n}\r\n\r\nexport function getBrowserLanguage(format: L10nFormat): string | null {\r\n    let browserLanguage = null;\r\n    if (typeof navigator !== 'undefined' && navigator.language) {\r\n        switch (format) {\r\n            case 'language-region':\r\n            case 'language-script-region':\r\n                browserLanguage = navigator.language;\r\n                break;\r\n            default:\r\n                browserLanguage = navigator.language.split('-')[0];\r\n        }\r\n    }\r\n    return browserLanguage;\r\n}\r\n\r\nexport function getSchema(schema: L10nSchema[], language: string, format: L10nFormat): L10nSchema | undefined {\r\n    const element = schema.find(item => formatLanguage(item.locale.language, format) === language);\r\n    return element;\r\n}\r\n\r\nexport function getValue(key: string, data: { [key: string]: any }, keySeparator: string): string | any | null {\r\n    if (data) {\r\n        if (keySeparator) {\r\n            return key.split(keySeparator).reduce((acc, cur) => (acc && acc[cur]) != null ? acc[cur] : null, data);\r\n        }\r\n        return data[key] != null ? data[key] : null;\r\n    }\r\n    return null;\r\n}\r\n\r\nexport function handleParams(value: string, params: any): string {\r\n    const replacedValue = value.replace(/{{\\s?([^{}\\s]*)\\s?}}/g, (substring: string, parsedKey: string) => {\r\n        const replacer = params[parsedKey];\r\n        return replacer !== undefined ? replacer : substring;\r\n    });\r\n    return replacedValue;\r\n}\r\n\r\nexport function mergeDeep(target: { [key: string]: any }, source: { [key: string]: any }): any {\r\n    const output = Object.assign({}, target);\r\n\r\n    if (isObject(target) && isObject(source)) {\r\n        Object.keys(source).forEach((key) => {\r\n            if (isObject(source[key])) {\r\n                if (!(key in target)) {\r\n                    Object.assign(output, { [key]: source[key] });\r\n                } else {\r\n                    output[key] = mergeDeep(target[key], source[key]);\r\n                }\r\n            } else {\r\n                Object.assign(output, { [key]: source[key] });\r\n            }\r\n        });\r\n    }\r\n\r\n    return output;\r\n}\r\n\r\nexport function toNumber(value: any): number {\r\n    const parsedValue = typeof value === 'string' && !isNaN(+value - parseFloat(value)) ? +value : value;\r\n    return parsedValue;\r\n}\r\n\r\nexport function toDate(value: any): Date {\r\n    if (isDate(value)) {\r\n        return value;\r\n    }\r\n\r\n    if (typeof value === 'number' && !isNaN(value)) {\r\n        return new Date(value);\r\n    }\r\n    if (typeof value === 'string') {\r\n        value = value.trim();\r\n        if (!isNaN(value - parseFloat(value))) {\r\n            return new Date(parseFloat(value));\r\n        }\r\n        if (/^(\\d{4}-\\d{1,2}-\\d{1,2})$/.test(value)) {\r\n            const [y, m, d] = value.split('-').map((val: string) => +val);\r\n            return new Date(y, m - 1, d);\r\n        }\r\n        const match = value.match(/^(\\d{4})-?(\\d\\d)-?(\\d\\d)(?:T(\\d\\d)(?::?(\\d\\d)(?::?(\\d\\d)(?:\\.(\\d+))?)?)?(Z|([+-])(\\d\\d):?(\\d\\d))?)?$/);\r\n        if (match) {\r\n            return isoStringToDate(match);\r\n        }\r\n    }\r\n\r\n    const date = new Date(value as any);\r\n    if (!isDate(date)) {\r\n        throw l10nError(toDate, 'Invalid date');\r\n    }\r\n    return date;\r\n}\r\n\r\nexport const PARSE_DATE_STYLE: { [format: string]: any } = {\r\n    full: { weekday: 'long', year: 'numeric', month: 'long', day: 'numeric' },\r\n    long: { year: 'numeric', month: 'long', day: 'numeric' },\r\n    medium: { year: 'numeric', month: 'short', day: 'numeric' },\r\n    short: { year: '2-digit', month: 'numeric', day: 'numeric' }\r\n};\r\n\r\nexport const PARSE_TIME_STYLE: { [format: string]: any } = {\r\n    full: { hour: 'numeric', minute: 'numeric', second: 'numeric', timeZoneName: 'long' },\r\n    long: { hour: 'numeric', minute: 'numeric', second: 'numeric', timeZoneName: 'short' },\r\n    medium: { hour: 'numeric', minute: 'numeric', second: 'numeric' },\r\n    short: { hour: 'numeric', minute: 'numeric' }\r\n};\r\n\r\nexport function parseDigits(digits: string) {\r\n    const groups = digits.match(/^(\\d+)?\\.((\\d+)(\\-(\\d+))?)?$/);\r\n    if (groups == null) throw l10nError(parseDigits, 'Invalid digits');\r\n\r\n    return {\r\n        minimumIntegerDigits: groups[1] ? parseInt(groups[1]) : undefined,\r\n        minimumFractionDigits: groups[3] ? parseInt(groups[3]) : undefined,\r\n        maximumFractionDigits: groups[5] ? parseInt(groups[5]) : undefined,\r\n    };\r\n}\r\n\r\nfunction isObject(item: any): boolean {\r\n    return typeof item === 'object' && !Array.isArray(item);\r\n}\r\n\r\nfunction isDate(value: any): value is Date {\r\n    return value instanceof Date && !isNaN(value.valueOf());\r\n}\r\n\r\n/**\r\n * Converts a date in ISO 8601 to a Date.\r\n */\r\nfunction isoStringToDate(match: RegExpMatchArray): Date {\r\n    const date = new Date(0);\r\n    let tzHour = 0;\r\n    let tzMin = 0;\r\n    const dateSetter = match[8] ? date.setUTCFullYear : date.setFullYear;\r\n    const timeSetter = match[8] ? date.setUTCHours : date.setHours;\r\n    if (match[9]) {\r\n        tzHour = Number(match[9] + match[10]);\r\n        tzMin = Number(match[9] + match[11]);\r\n    }\r\n    dateSetter.call(date, Number(match[1]), Number(match[2]) - 1, Number(match[3]));\r\n    const h = Number(match[4] || 0) - tzHour;\r\n    const m = Number(match[5] || 0) - tzMin;\r\n    const s = Number(match[6] || 0);\r\n    const ms = Math.round(parseFloat('0.' + (match[7] || 0)) * 1000);\r\n    timeSetter.call(date, h, m, s, ms);\r\n    return date;\r\n}\r\n"]}