Recent questions tagged RegEx

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regex - javascript regular expression to not match a word

How do I use a javascript regular expression to check a string that does not match certain words? For example, I ... bcd') is evaluated to true. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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regex - how to do re.compile() with a list in python

I have a list of strings in which I want to filter for strings that contains keywords. I want to do something like: ... a good way to do this.) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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regex - R grep: Match one string against multiple patterns

In R, grep usually matches a vector of multiple strings against one regexp. Q: Is there a possibility ... question, other programming language] See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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regex - Extract a string of words between two specific words in R

I have the following string : "PRODUCT colgate good but not goodOKAY" I want to extract all the words between PRODUCT and OKAY See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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regex - How to get capturing group functionality in Go regular expressions

I'm porting a library from Ruby to Go, and have just discovered that regular expressions in Ruby are not ... I re-write these expressions? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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regex - how to pull @ mentions out of strings like twitter in javascript

I am writing an application in Node.js that allows users to mention each other in messages like on twitter. I ... Any advice, regex, problems? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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594 views

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regex - In Javascript, how can I perform a global replace on string with a variable inside '/' and '/g'?

I want to perform a global replace of string using String.replace in Javascript. In the documentation I read that I ... don't work. Any ideas? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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regex - sed error: "invalid reference 1 on `s' command's RHS"

I run several substitution commands as the core of a colorize script for maven. One of the sed commands uses a regular ... on `s' command's RHS See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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regex - PHP preg_match - only allow alphanumeric strings and - _ characters

I need the regex to check if a string only contains numbers, letters, hyphens or underscore $string1 = "This is ... "; // String2 acceptable } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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728 views

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regex - Lua pattern matching vs. regular expressions

I'm currently learning lua. regarding pattern-matching in lua I found the following sentence in the lua ... regular expressions better suited? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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692 views

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regex - How to identify a given string is hex color format

I'm looking for a regular expression to validate hex colors in ASP.NET C# and am also looking code for ... server side. For instance: #CCCCCC See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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484 views

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regex - DFA vs NFA engines: What is the difference in their capabilities and limitations?

I am looking for a non-technical explanation of the difference between DFA vs NFA engines, based on their capabilities and limitations. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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regex - Regular expression for checking if capital letters are found consecutively in a string?

I want to know the regexp for the following case: The string should contain only alphabetic letters. It must ... , but HTTPHandler is wrong. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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858 views

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regex - Visual Studio Code Search and Replace with Regular Expressions

I want to use "Search And Replace" in Visual Studio Code to change every instance of <h1>content</h1> to ... . How can I accomplish that? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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734 views

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regex - Practical non-Turing-complete languages?

Nearly all programming languages used are Turing Complete, and while this affords the language to represent any computable ... been in before). See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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709 views

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regex - HTML input pattern not working

.*(d{3}-d{3}-d{2}-d{2}|d{3}-d{2}-d{2}-d{3}|d{10}).* this pattern was working fine. But suddenly it ... {10}).*"> <button> Send </button> </form> See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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549 views

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regex - Parse branch name, initiate commit with name in the commit message

My team uses a common naming convention for branch names, which include the Jira task number in the branch name. ... "ACD-1664 | <cursor>" See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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502 views

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regex - JavaScript RegExp objects

I try to write a simple Markdown parser in JavaScript. Therefore I want to check for the [link content][link ... how can the problem be solved? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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510 views

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regex - Why does re.sub in Python not work correctly on this test case?

Try this code. test = ' az z bz z z stuff z z ' re.sub(r'(W)(z)(W)', r'1_23', test) This ... leading whitespace). Is there a way to fix this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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707 views

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regex - Python's Regular Expression Source String Length

In Python Regular Expressions, re.compile("x"*50000) gives me OverflowError: regular expression code size ... Opinions will be appreciated. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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919 views

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regex - How to extract multiple values with a regular expression in Jmeter

I am running tests with jmeter and I need to extract with a Regular Expression: insertar?sIws2kyXGJJA_01== insertar? ... 0,"center",""," See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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603 views

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regex - Searching for all Unicode variation of hyphens in Python

I have been trying to extract certain text from PDF converted into text files. The PDF came from various ... the [-u2212xad] expression? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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585 views

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regex - Replacing single '' with '\' in Java

How do I replace a single '' with '\'? When I run replaceAll() then I get this error message. Exception in ... ; System.out.println(str); } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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642 views

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regex - Which characters can be used as regular expression delimiters?

Which characters can be used as delimiters for a Perl regular expression? m/re/, m(re) and m?re? all seem ... 'd like to know all possibilities. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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683 views

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regex - How to remove underscores in field names with logstash?

I'm thinking about using the mutate filter and the rename option, but I don't know about the corresponding regex to ... } } } Can anyone help? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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586 views

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regex php: find everything in div

I'm trying to find eveything inside a div using regexp. I'm aware that there probably is a smarter way to ... ? Im still a regexp novice. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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861 views

1 answer

regex - how to replace nth character of a string in a column in r

My input is a<-c("aa_bbb_cc_ddd","ee_fff_gg_hhh") b<-c("a","b") df<-data.frame(cbind(a,b)) I want my ... df<-data.frame(cbind(a,b)) please help See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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500 views

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regex - How do I replace characters not in range [0x5E10, 0x7F35] with '*' in PHP?

I'm not familiar with the how regular expressions treat hexadecimal, anyone knows? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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