I'm really struggling to put a label on this, which is probably why I was unable to find what I need through a search.
我真的很难在这上面贴上标签，这可能就是为什么我无法通过搜索找到我需要的东西。
I'm looking to match the following:
我想要匹配以下内容：
- Auto Reply
- 自动回复
- Automatic Reply
- 自动回复
- AutomaticReply
- 自动回复
The platform that I'm using doesn't allow for the specification of case-insensitive searches. I tried the following regular expression:
我正在使用的平台不允许指定不区分大小写的搜索。我尝试了以下正则表达式：
.*[aA]uto(?:matic)[ ]*[rR]eply.*
Thinking that (?:matic) would cause my expression to match Auto or Automatic. However, it is only matching Automatic.
认为（？：matic）会使我的表达式与自动或自动匹配。但是，它只匹配自动。
- What am I doing wrong?
- 我究竟做错了什么？
- What is the proper terminology here?
- 这里的术语是什么？
This is using Perl for the regular expression engine (I think that's PCRE but I'm not sure).
这是使用Perl作为正则表达式引擎（我认为这是PCRE，但我不确定）。
5 个解决方案
#1
22
(?:...) is to regex patterns as (...) is to arithmetic: It simply overrides precedence.
（？：...）是正则表达式模式，因为（...）是算术：它只是覆盖优先级。
ab|cd # Matches ab or cd
a(?:b|c)d # Matches abd or acd
A ? quantifier is what makes matching optional.
一个 ？量词是使匹配可选的原因。
a? # Matches a or an empty string
abc?d # Matches abcd or abd
a(?:bc)?d # Matches abcd or ad
You want
你要
(?:matic)?
Without the needless leading and trailing .*, we get the following:
没有不必要的前导和尾随。*，我们得到以下内容：
/[aA]uto(?:matic)?[ ]*[rR]eply/
As @adamdc78 points out, that matches AutoReply. This can be avoided as using the following:
正如@ adamdc78所指出的那样，它与AutoReply相匹配。使用以下内容可以避免这种情况：
/[aA]uto(?:matic[ ]*|[ ]+)[rR]eply/
#2
4
This should work:
这应该工作：
/.*[aA]uto(?:matic)? *[rR]eply/
you were simply missing the ? after (?:matic)
你只是错过了？之后（？：matic）
#3
3
[Aa]uto(?:matic ?| )[Rr]eply
This assumes that you do not want AutoReply to be a valid hit.
这假设您不希望AutoReply成为有效命中。
You're just missing the optional ("?") in the regex. If you're looking to match the entire line after the reply, then including the .* at the end is fine, but your question didn't specify what you were looking for.
你只是缺少正则表达式中的可选（“？”）。如果您希望在回复后匹配整行，那么在最后包括。*就可以了，但您的问题没有说明您要查找的内容。
#4
2
You can use this regex with line start/end anchors:
您可以将此正则表达式与行开始/结束锚点一起使用：
^[aA]uto(?:matic)? *[rR]eply$
Explanation:
说明：
^ assert position at start of the string
[aA] match a single character present in the list below
aA a single character in the list aA literally (case sensitive)
uto matches the characters uto literally (case sensitive)
(?:matic)? Non-capturing group
Quantifier: Between zero and one time, as many times as possible, giving back as needed
[greedy]
matic matches the characters matic literally (case sensitive)
* matches the character literally
Quantifier: Between zero and unlimited times, as many times as possible, giving back
as needed [greedy]
[rR] match a single character present in the list below
rR a single character in the list rR literally (case sensitive)
eply matches the characters eply literally (case sensitive)
$ assert position at end of the string
#5
1
Slightly different. Same result.
稍微不一样。结果相同。
m/([aA]uto(matic)? ?[rR]eply)/
Tested Against:
经测试：
Some other stuff....
Auto Reply
Automatic Reply
AutomaticReply
Now some similar stuff that shouldn't match (auto).
#1
22
(?:...) is to regex patterns as (...) is to arithmetic: It simply overrides precedence.
（？：...）是正则表达式模式，因为（...）是算术：它只是覆盖优先级。
ab|cd # Matches ab or cd
a(?:b|c)d # Matches abd or acd
A ? quantifier is what makes matching optional.
一个 ？量词是使匹配可选的原因。
a? # Matches a or an empty string
abc?d # Matches abcd or abd
a(?:bc)?d # Matches abcd or ad
You want
你要
(?:matic)?
Without the needless leading and trailing .*, we get the following:
没有不必要的前导和尾随。*，我们得到以下内容：
/[aA]uto(?:matic)?[ ]*[rR]eply/
As @adamdc78 points out, that matches AutoReply. This can be avoided as using the following:
正如@ adamdc78所指出的那样，它与AutoReply相匹配。使用以下内容可以避免这种情况：
/[aA]uto(?:matic[ ]*|[ ]+)[rR]eply/
#2
4
This should work:
这应该工作：
/.*[aA]uto(?:matic)? *[rR]eply/
you were simply missing the ? after (?:matic)
你只是错过了？之后（？：matic）
#3
3
[Aa]uto(?:matic ?| )[Rr]eply
This assumes that you do not want AutoReply to be a valid hit.
这假设您不希望AutoReply成为有效命中。
You're just missing the optional ("?") in the regex. If you're looking to match the entire line after the reply, then including the .* at the end is fine, but your question didn't specify what you were looking for.
你只是缺少正则表达式中的可选（“？”）。如果您希望在回复后匹配整行，那么在最后包括。*就可以了，但您的问题没有说明您要查找的内容。
#4
2
You can use this regex with line start/end anchors:
您可以将此正则表达式与行开始/结束锚点一起使用：
^[aA]uto(?:matic)? *[rR]eply$
Explanation:
说明：
^ assert position at start of the string
[aA] match a single character present in the list below
aA a single character in the list aA literally (case sensitive)
uto matches the characters uto literally (case sensitive)
(?:matic)? Non-capturing group
Quantifier: Between zero and one time, as many times as possible, giving back as needed
[greedy]
matic matches the characters matic literally (case sensitive)
* matches the character literally
Quantifier: Between zero and unlimited times, as many times as possible, giving back
as needed [greedy]
[rR] match a single character present in the list below
rR a single character in the list rR literally (case sensitive)
eply matches the characters eply literally (case sensitive)
$ assert position at end of the string
#5
1
Slightly different. Same result.
稍微不一样。结果相同。
m/([aA]uto(matic)? ?[rR]eply)/
Tested Against:
经测试：
Some other stuff....
Auto Reply
Automatic Reply
AutomaticReply
Now some similar stuff that shouldn't match (auto).