元字符 meaning in English

metacharacter

An escaped metacharacter has the behavior of a normal character
转义的元字符具有常规字符的行为。
The following table describes the metacharacters that affect matching
下表描述了影响匹配的元字符。
You can override the capture by using the non - capturing metacharacters ? : ,
可以通过使用非捕获元字符? : 、
A normal character is any xml character that is not a metacharacter
常规字符为不是元字符的任何xml字符。
Which uses the metacharacter
，该正则表达式使用元字符

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