regex-group

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preg_replace how to replace only matching xxx($1)yyy pattern inside the selector

I\'m trying to use a regular expression to erase only the matching part of an string.I\'m using the preg_replace function and have 开发者_如何学Pythontried to delete the matching text by putting paren[详细]

2023-02-09 02:32 分类：问答
Regex enclosed with () Issue

I\'m having a regular expression (\\\\w+[ ]*|-\\\\w+[ ]*)(!=|<=|>=|=|<|>| not in | in | not like | lik开发者_如何学JAVAe )(.*)[详细]

2023-02-03 23:28 分类：问答
Regex to match 2 or none?

I have this regex to identify if the line contains two underscores: \\s*_{2}(\\w+) Any space, two underscores and then a word.It turns out, I need to know also for no underscore at all, so I have:[详细]

2023-02-03 22:19 分类：问答
How do I create regex groups for replacement?

I have this sample string: Image:SGD$45.32 SKU: 3f3f3 dfdfd grg4t BP 6yhf Pack Size: 1000\'s Color: Green Price: SGD$45.32 SGD$45...[详细]

2023-02-03 19:00 分类：问答
RegEx Match VB.NET Select Case with no Case Else

I\'m looking for a RegEx that will find Select Case Statements that have no Case Else in them. Here\'s what I came up with so far[详细]

2023-01-28 00:18 分类：问答
regex php: "get rid [link1] get rid [link2] ... get rid" - problem 'getting rid' when there IS NO [link]

How to preg_replace() with a single line to achieve the following outputs? $string1=\"get rid1 [link1] get rid2 [link2] ...\"; // any number of开发者_StackOverflow社区 links[详细]

2023-01-25 21:20 分类：问答
Regex - Group Value Replacement

I am not开发者_如何学运维 sure if this is possible to do, but I need a way to replace a value of a numbered group specified in the my regex expression with a string declared dynamically at runtime, on[详细]

2023-01-20 20:48 分类：问答
What is a non-capturing group in regular expressions?

How are non-capturing groups, i.e., (?:), used 开发者_如何学运维in regular expressions and what are they good for?Let me try to explain this with an example.[详细]

2023-01-11 21:33 分类：问答
Python : match string inside double quotes and bracket

I want to match text inside double quotes and bracket as two groups by use regex, How can I do that? from[详细]

2023-01-07 13:52 分类：问答
Java Matcher groups: Understanding The difference between "(?:X|Y)" and "(?:X)|(?:Y)"

Can anyone explain: Why the two patterns used below give different results? (answered below) Why the 2nd example gives a group count of 1 but says the start[详细]

2023-01-02 02:59 分类：问答