使用NSMutableAttributedString和正则表达式替换图像中的特定文本

// 原始文本
let originalText = "这是一段包含特定文本的NSMutableAttributedString"

// 将原始文本转换为NSMutableAttributedString对象
let attributedString = NSMutableAttributedString(string: originalText)

// 定义需要替换的特定文本和替换后的文本
let targetText = "特定文本"
let replacementText = "替换文本"

// 使用正则表达式匹配特定文本
let regex = try! NSRegularExpression(pattern: targetText, options: [])
let matches = regex.matches(in: originalText, options: [], range: NSRange(location: 0, length: originalText.utf16.count))

// 遍历匹配结果并进行替换
for match in matches {
    let range = match.range
    attributedString.replaceCharacters(in: range, with: replacementText)
}

// 创建一个包含图像的附件对象
let imageAttachment = NSTextAttachment()
imageAttachment.image = UIImage(named: "image.png")

// 将附件对象插入到指定位置
let imageString = NSAttributedString(attachment: imageAttachment)
attributedString.insert(imageString, at: 0)

// 输出最终的NSMutableAttributedString对象
print(attributedString)