My Workplace's Diabolical Regex For Matching E-Mail Formats

红色错误提示框，顶部写有 An error has occurred!，下方依次显示 CODE: 32001、MESSAGE: [connect_rainbow] Invalid parameters 和 DATA: String does not match pattern，接着是一长串复杂的邮箱正则表达式。适合表达崩溃、无语、被代码折磨、程序员抓狂。