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63 lines
2.3 KiB
JavaScript
Vendored
63 lines
2.3 KiB
JavaScript
Vendored
/**
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* Emoji正则表达式
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* @type {RegExp}
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*/
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const emojiRegex = /(?:[\u2700-\u27bf]|(?:\ud83c[\udde6-\uddff]){2}|[\ud800-\udbff][\udc00-\udfff]|[\u0023-\u0039]\ufe0f?\u20e3|\u3299|\u3297|\u303d|\u3030|\u24c2|\ud83c[\udd70-\udd71]|\ud83c[\udd7e-\udd7f]|\ud83c\udd8e|\ud83c[\udd91-\udd9a]|\ud83c[\udde6-\uddff]|\ud83c[\ude01-\ude02]|\ud83c\ude1a|\ud83c\ude2f|\ud83c[\ude32-\ude3a]|\ud83c[\ude50-\ude51]|\u203c|\u2049|[\u25aa-\u25ab]|\u25b6|\u25c0|[\u25fb-\u25fe]|\u00a9|\u00ae|\u2122|\u2139|\ud83c\udc04|[\u2600-\u26FF]|\u2b05|\u2b06|\u2b07|\u2b1b|\u2b1c|\u2b50|\u2b55|\u231a|\u231b|\u2328|\u23cf|[\u23e9-\u23f3]|[\u23f8-\u23fa]|\ud83c\udccf|\u2934|\u2935|[\u2190-\u21ff])/g;
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/**
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* 检查文本是否包含emoji
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* @param {string} text - 要检查的文本
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* @returns {boolean} - 是否包含emoji
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*/
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const containsEmoji = (text) => {
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emojiRegex.lastIndex = 0;
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return emojiRegex.test(text);
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}
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/**
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* 将文本中的emoji转换成HTML标签
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* @param {string} text - 输入文本
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* @param {string} className - 添加给emoji的类名，默认为'emoji-original'
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* @param {string} tagName - 包裹emoji的标签名，默认为'span'
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* @returns {string} - 转换后的HTML字符串
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*
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* 示例:
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* transformEmojiToHtml("我❤️你", "heart", "span")
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* // 返回: "我<span class=\"heart\">❤️</span>你"
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*/
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export default function transformEmojiToHtml(text, className = 'emoji-original', tagName = 'span') {
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// 参数验证
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if (typeof text !== 'string') return '';
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if (!className || typeof className !== 'string') className = 'emoji-original';
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if (!tagName || typeof tagName !== 'string') tagName = 'span';
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// 快速检查是否包含emoji
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if (!containsEmoji(text)) return text;
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// 重置正则索引并准备替换
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emojiRegex.lastIndex = 0;
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let result = '';
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let lastIndex = 0;
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let match;
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// 逐个匹配emoji并替换
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while ((match = emojiRegex.exec(text)) !== null) {
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// 添加emoji前的文本
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if (match.index > lastIndex) {
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result += text.substring(lastIndex, match.index);
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}
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// 添加包装后的emoji
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result += `<${tagName} class="${className}">${match[0]}</${tagName}>`;
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lastIndex = emojiRegex.lastIndex;
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}
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// 添加剩余文本
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if (lastIndex < text.length) {
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result += text.substring(lastIndex);
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}
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return result;
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}
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