68 lines
2.1 KiB
TypeScript
68 lines
2.1 KiB
TypeScript
/**
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* Translation Manager
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* Helps with some of the JavaScript side of translating strings
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* in a way which fits with Laravel.
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*/
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export class Translator {
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/**
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* Parse the given translation and find the correct plural option
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* to use. Similar format at Laravel's 'trans_choice' helper.
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*/
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choice(translation: string, count: number, replacements: Record<string, string> = {}): string {
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const splitText = translation.split('|');
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const exactCountRegex = /^{([0-9]+)}/;
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const rangeRegex = /^\[([0-9]+),([0-9*]+)]/;
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let result = null;
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for (const t of splitText) {
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// Parse exact matches
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const exactMatches = t.match(exactCountRegex);
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if (exactMatches !== null && Number(exactMatches[1]) === count) {
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result = t.replace(exactCountRegex, '').trim();
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break;
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}
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// Parse range matches
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const rangeMatches = t.match(rangeRegex);
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if (rangeMatches !== null) {
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const rangeStart = Number(rangeMatches[1]);
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if (rangeStart <= count && (rangeMatches[2] === '*' || Number(rangeMatches[2]) >= count)) {
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result = t.replace(rangeRegex, '').trim();
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break;
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}
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}
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}
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if (result === null && splitText.length > 1) {
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result = (count === 1) ? splitText[0] : splitText[1];
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}
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if (result === null) {
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result = splitText[0];
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}
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return this.performReplacements(result, replacements);
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}
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protected performReplacements(string: string, replacements: Record<string, string>): string {
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const replaceMatches = string.match(/:(\S+)/g);
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if (replaceMatches === null) {
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return string;
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}
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let updatedString = string;
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for (const match of replaceMatches) {
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const key = match.substring(1);
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if (typeof replacements[key] === 'undefined') {
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continue;
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}
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updatedString = updatedString.replace(match, replacements[key]);
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}
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return updatedString;
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}
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}
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