小写字母或句点的正则表达式，后跟大写字母
[英]regex for lowercase letter or period followed by an uppercase letter
问题描述
Originally I just wanted to find a lowercase letter followed by an uppercase letter, in which case [az][AZ] worked out pretty well. 
最初，我只是想找到一个小写字母，然后是一个大写字母，在这种情况下， [az][AZ]效果很好。
However, in some cases the lowercase letter is replaced by a period. 但是，在某些情况下，小写字母由句点代替。 I'm fairly new to regex and haven't been able to find a way to implement this explicity in regex (my current solution runs through a few if statements and feels quite inelegant. 我对regex相当陌生，还无法找到在regex中实现此显式方式的方法（我当前的解决方案通过了一些if语句，感觉很不雅致。
Is this something that can be handled well by regex? 正则表达式可以很好地处理吗？
1 个解决方案
解决方案1
5 2013-03-21 14:53:09
[a-z.][A-Z]
Read about character classes . 阅读有关字符类的信息 。 One character out of those specified is matched by it. 匹配指定字符中的一个字符。
Additionally: If you were using the . 此外：如果您使用. outside a character class, you would need to escape it as it is a regex meta-character. 在字符类之外，您需要对其进行转义，因为它是正则表达式元字符。
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