regex-lookarounds

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lookahead and non-capturing regular expressions

I\'m trying to match the local part of an email address before the @ character with: LOCAL_RE_NOTQUOTED = \"\"\"[详细]

2023-03-28 05:06 分类：问答
lookahead assertions

I\'m trying to match a label within a valid domain name using a regular expression in Python: DOMAIN_LABEL_RE = \"\"\"[详细]

2023-03-27 20:39 分类：问答
Negative lookahead Regular Expression

I want to match all strings ending in \".htm\" unless it ends in \"foo.htm\".I\'m generally decent with regular expressions, but negative lookaheads have me stumped.Why doesn\'t this work?[详细]

2023-03-23 04:41 分类：问答
Regular expression lookahead and/or lookbehind wrong in that

$line = \'bob never ever said every reverie was good\'; Looking: Match and capture ONLY the word \'ever\'. Do so using lookahead and/or lookbehind assertions.[详细]

2023-03-17 17:49 分类：问答
How to group and reference with lookahead

In this example: (\"Talking with Bengt Holmstrom 1\" \"#44\") (\"Chapter 1 What is Economics? 3\" \"#46\")[详细]

2023-03-17 01:46 分类：问答
Problem with regex lookahead in javascript

I\'m trying to match only when all space-separated words are longer than 3 word characters (3 word characters are mandatory, abc* is right but ab* is not). This is my test:[详细]

2023-03-16 12:01 分类：问答
Java regular expression with lookahead

is there a way to print out lookahead portion of a regex pattern in java? String test = \"hello world this is example\";[详细]

2023-02-21 06:55 分类：问答
Negative lookahead regex not working

input1=\"caused/VBN by/IN thyroid disorder\" Requirement: find word \"caused\" that is followed by slash followed by any number of capital alphabets -- and not followed by space + \"by/IN.[详细]

2023-02-19 03:19 分类：问答
Java RegEx with lookahead failing

In Java, I was unable to get a regex to behave the way I wanted, and wrote this little JUnit test to demonstrate the problem:[详细]

2023-02-11 08:24 分类：问答
Regular expressions negative lookahead

I\'m doing some regular expression gymnastics. I set myself the task of trying to search for C# code where there is a usage of the as-operator not followed by a null-check within a reasonable amount o[详细]

2023-02-09 14:32 分类：问答