Created
April 14, 2024 15:12
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| import { JSX } from 'solid-js'; | |
| function assert(condition: unknown, message: string): asserts condition { | |
| if (!condition) { | |
| throw new Error(message); | |
| } | |
| } | |
| type Values = Record<string, JSX.Element | ((children: JSX.Element) => JSX.Element)>; | |
| type TranslateProps = { | |
| message: string; | |
| values?: Values; | |
| }; | |
| const commonValues: Values = { | |
| strong: (children) => <span class="strong">{children}</span>, | |
| }; | |
| export function Translate(props: TranslateProps) { | |
| return translate(props.message, props.values); | |
| } | |
| export function translate(message: string, values: Values = {}) { | |
| let match: RegExpMatchArray | null; | |
| values = { ...commonValues, ...values }; | |
| while ((match = /\{([a-zA-Z0-9]+)\}/.exec(message)) !== null) { | |
| const key = match[1]; | |
| const value = values[key]; | |
| assert(typeof value === 'string', `Expected "${key}" to be a string\nMessage: ${message}`); | |
| message = message.replaceAll(match[0], value); | |
| } | |
| const elements: JSX.Element[] = []; | |
| while ((match = /<([a-zA-Z0-9]+)>([^<]*)<\/\1>/.exec(message)) !== null) { | |
| const index = match.index as number; | |
| const key = match[1]; | |
| const children = match[2]; | |
| const fn = values[key]; | |
| assert(typeof fn === 'function', `Expected "${key}" to be a function\nMessage: ${message}`); | |
| elements.push(message.substring(0, index)); | |
| elements.push(fn(children)); | |
| message = message.substring(index + match[0].length); | |
| } | |
| if (elements.length === 0) { | |
| return message; | |
| } | |
| elements.push(message); | |
| return elements.filter((str) => str !== ''); | |
| } |
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