47 lines
1.7 KiB
TypeScript
47 lines
1.7 KiB
TypeScript
import rndstr from 'rndstr';
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export function nyaize(text: string): string {
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const [toNyaize, exclusionMap] = exclude(text);
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const nyaized = toNyaize
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// ja-JP
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.replace(/な/g, 'にゃ').replace(/ナ/g, 'ニャ').replace(/ﾅ/g, 'ﾆｬ')
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// en-US
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.replace(/morning/gi, 'mornyan').replace(/everyone/gi, 'everynyan')
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// ko-KR
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.replace(/[나-낳]/g, match => String.fromCharCode(
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match.charCodeAt(0)! + '냐'.charCodeAt(0) - '나'.charCodeAt(0)
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))
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.replace(/(다$)|(다(?=\.))|(다(?= ))|(다(?=!))|(다(?=\?))/gm, '다냥')
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.replace(/(야(?=\?))|(야$)|(야(?= ))/gm, '냥');
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return replaceExceptions(nyaized, exclusionMap);
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}
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function exclude(text: string): [string, Record<string, string>] {
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const map: Record<string, string> = {};
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function substitute(match: string): string {
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let randomstr: string;
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do {
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randomstr = rndstr({ length: 16, chars: '🀀-🀫' });
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} while(Object.prototype.hasOwnProperty.call(map, randomstr));
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map[randomstr] = match;
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return randomstr;
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}
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const replaced = text
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.replace(/```(.+?)?\n([\s\S]+?)```(\n|$)/gm, match => substitute(match)) // code block
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.replace(/`([^`\n]+?)`/g, match => substitute(match)) // inline code
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.replace(/(https?:\/\/.*?)(?= |$)/gm, match => substitute(match)) // URL
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.replace(/:([a-z0-9_+-]+):/gim, match => substitute(match)) // emoji
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.replace(/#([^\s.,!?'"#:\/\[\]【】]+)/gm, match => substitute(match)) // hashtag
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.replace(/@\w([\w-]*\w)?(?:@[\w.\-]+\w)?/gm, match => substitute(match)); // mention
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return [replaced, map];
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}
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function replaceExceptions(text: string, map: Record<string, string>): string {
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for (const rule in map) {
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if (Object.prototype.hasOwnProperty.call(map, rule)) {
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text = text.replace(rule, map[rule]);
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}
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}
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return text;
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}
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