regex-lookarounds

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Regex with lookahead

I can\'t seem to make this regex work. The input is as follows. Its really on one row but I have inserted line brea开发者_如何学JAVAks after each \\r\\n so that it\'s easier to see, so no check for s[详细]

2023-02-08 11:09 分类：问答
Regex Until But Not Including

For regex what is the syntax for search until but开发者_StackOverflow not including? Kinda like: Haystack:[详细]

2023-01-18 08:18 分类：问答
Regex - lookahead assertion

I have problem with lookahead assertion (?=). Fo开发者_StackOverflow中文版r example, I have expression:[详细]

2023-01-17 21:00 分类：问答
How can we match a^n b^n?

This is the second part of a series of educational regex articles. It shows how lookaheads and nested references can be used to match the non-regular languge a开发者_JAVA百科nbn. Nested references ar[详细]

2023-01-14 06:08 分类：问答
How to make a regex for files ending in .php?

I\'m trying to write a very simple regular expression that开发者_开发问答 matches any file name that doesn\'t end in .php.I came up with the following...[详细]

2023-01-10 08:04 分类：问答
Regular Expression Postive Lookahead substring

I am fairly new to regular expressions and the more and more I use them, the more I like them. I am working on a regular expression that must meet the following conditions:[详细]

2023-01-02 01:38 分类：问答
lookahead and group

In Java, on a text like foo <on> ba开发者_运维百科r </on> thing <on> again</on> now, I should want a regex with groups wich give me with a find \"foo\", \"bar\", empty string,[详细]

2023-01-01 02:06 分类：问答
Regex negative lookahead

I need to modify this regex href=\\\"(.*)\\\" which matches this... href=\"./pothole_locator_map.aspx?lang=en-gb&开发者_如何学运维lat=53.153977&lng=-3.533306\"[详细]

2022-12-27 13:44 分类：问答
欧美又粗又长XXXXBBBB疯狂春闺帐暖？

司慕染和裴宸朔走到镇子郊外的湖边，月光皎洁的洒在湖面上荡起一圈圈的涟漪。司慕染看着站在月光下似如谪仙的男子问道：“你怎么知道我在这里？”。　　“方圆十里内唯有这一个镇子，我猜你若住宿那么[详细]

2022-12-24 19:36 分类：问答
R segfault when running via Rpy on linux

I\'m running R via Rpy on a redhat linux distribution. Periodically I\'ll encounter this error message:[详细]

2022-12-24 11:42 分类：问答