英文:
Regex that finds a specific word that doesn't match a specific upper/lowercase?
问题
是不是可能有一个正则表达式，匹配一个特定的单词，而不区分大小写？
例如：FooBar - 我想查找这个单词，只要它不包含大写的F和B，其他都是小写。
foobar - 匹配
FooBar - 不匹配
aWord - 不匹配
fOoBaR - 匹配
英文:
Is it possible to have a regular expression that matches a specific word that doesn't match the specific upper/lowercase?
For example: FooBar - I'd like to look for this word only if it doesn't have a capital F and B and the rest lowercase.
foobar - match
FooBar - not match
aWord - not match
fOoBaR - match
答案1
得分: 1
此正则表达式：
^f[oO]{2}[bB][Aa][rR]
该正则表达式匹配如下：
| 节点 | 解释 |
|---|---|
^ |
字符串的开头 |
f |
f |
[oO]{2} |
任何字符：'o'，'O'（2次） |
[bB] |
任何字符：'b'，'B' |
[Aa] |
任何字符：'A'，'a' |
[rR] |
任何字符：'r'，'R' |
英文:
This regex:
^f[oO]{2}[bB][Aa][rR]
The regular expression matches as follows:
| Node | Explanation |
|---|---|
^ |
the beginning of the string |
f |
f |
[oO]{2} |
any character of: 'o', 'O' (2 times) |
[bB] |
any character of: 'b', 'B' |
[Aa] |
any character of: 'A', 'a' |
[rR] |
any character of: 'r', 'R' |
答案2
得分: 1
匹配模式中的正则表达式会匹配包含"Foobar"（不区分大小写）的单词。以下是每个单词是否匹配的结果：
- foobar: 是
- FooBar: 否
- Foobar: 是
- aWord: 否
- fOoBaR: 是
英文:
Another option which would also match Foobar which I understand would be a correct match, since only one letter F is capital and not both (B and F), correct?
(?!FooBar)([fF][oO]{2}[bB][aA][rR])
| Word | Match |
|---|---|
| foobar | yes |
| FooBar | no |
| Foobar | yes |
| aWord | no |
| fOoBaR | yes |
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