Lua模式中的交替运算符是什么? [英] What is the alternation operator in Lua patterns?

问题描述

在正则表达式中，|用于交替. Lua模式中对应的字符是什么?

In regex, | is used for alternation. What is the corresponding character in Lua patterns?

推荐答案

首先，请注意Lua 模式不是正则表达式；它们是他们自己更简单的匹配语言(具有不同的优缺点).

First, note that Lua patterns are not regular expressions; they are their own simpler matching language (with different benefits and drawbacks).

根据我上面链接的说明以及此答案，Lua中没有替代运算符图案.要获得此功能，您需要使用功能更强大的Lua构造(例如 LPEG 或 Lua Regex库).

Per the specification I've linked to above, and per this answer, there is no alternation operator in a Lua pattern. To get this functionality you'll need to use a more powerful Lua construct (like LPEG or a Lua Regex Library).

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