Recent questions tagged regex

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regex - JavaFX Textfield with listener gives: "java.lang.IllegalArgumentException: The start must be <= the end"

i am getting an exception and don't understand what causes it. It's an FX App with FXML files. At the init ... .lang.Thread.run(Thread.java:745) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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660 views

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regex - Limit the number of words in a response with a regular expression

Does anybody have a regular expression that would work to limit the number of words in a response? For instance ... had trouble getting it work. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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718 views

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regex - Extract capture group matches from regular expressions? (or: where is gregexec?)

Given a regular expression containing capture groups (parentheses) and a string, how can I obtain all the ... it must remain arbitrary. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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770 views

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regex - How can I extract the content between two brackets?

My input: 1:FAILED + *1 0 (8328832,AR,UNDECLARED) This is what I expect: 8328832,AR,UNDECLARED I am trying ... but it doesn't match anything. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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590 views

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regex - Should we consider using range [a-z] as a bug?

In my locale (et_EE) [a-z] means: abcdefghijklmnopqrs?z So, 6 ASCII chars (tuvwxy) and one from Estonian ... Or has last one some caveats? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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746 views

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regex - Laravel pattern validation pipe character issue

Using the Laravel framework I need to check the value of a submitted field against a set of valid values. The ... the character does not help? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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591 views

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regex - R regular expressions: unexpected behavior of "[:digit:]"

I'd like to extract elements beginning with digits from a character vector but there's something about POSIX ... I misunderstanding the syntax? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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902 views

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regex - Using a regular expression to replace upper case repeated letters in python with a single lowercase letter

I am trying to replace any instances of uppercase letters that repeat themselves twice in a string with a single ... expression to do this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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807 views

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regex - How can I replace a plus sign in JavaScript?

I need to make a replace of a plus sign in a javascript string. there might be multiple occurrence of the ... ' sign in a regular expression? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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638 views

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regex - Test filename with regular expression

I am trying to test a filename string with this pattern: ^[A-Za-z0-9-_,s]+[.]{1}[A-Za-z]{3}$ ... could point me in the right direction. Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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931 views

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regex to allow atleast one special character, one uppercase, one lowercase(in any order)

Can anyone help me with a regex to allow atleast one special character, one uppercase, one lowercase. This ... Any help is greatly appreciated See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

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regex - Javascript function need allow numbers, dot and comma

I need to create a function to allow numbers dot and comma. So anyone corrects the following function function ... .preventDefault(); } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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717 views

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regex - Delete lines from file with SED or AWK

Ive seen many variations, very confused on how to solve these 3 problems. deleting all rows except the first from ... a range of line numbers See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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776 views

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regex - C# How to delete XML/HTML comments with regular expression

The fragment below doesn't work for me. fragment = Regex.Replace(fragment, "", String.Empty , RegexOptions.Multiline ); See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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732 views

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regex - VS Code: How to convert snippet placeholder from camelCase to SCREAMING_SNAKE_CASE?

I'd like to create a VS Code snippet for creating redux reducers. I would like to have a snippet with ... which requires a different flow. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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550 views

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regex - What is the proper way of inserting a pipe into a Java Pattern expression?

What is the proper way of inserting a pipe into a Java Pattern expression? I actually want to use a pipe as a ... --> {"hello", "world"} See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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809 views

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regex - What is '?-mix' in a Ruby Regular Expression

Just trying to debug a regular expression in ruby. When I print the contents of a regular expression, it shows ?- ... ? Where is it coming from? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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713 views

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regex - Capture groups with Regular Expression (Python)

Kind of a noob here, apologies if I misstep. I'm learning regular expressions and am on this lesson ... file_07241999 Not found Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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674 views

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regex - Lookahead vs lookbehind

I have a hard time to understand the concepts of "lookahead" and "lookbehind". For example, there is a string ... aaaaa"? I mean the direction. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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815 views

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regex - Extracting URLs from a text document using Java + Regular Expressions

I'm trying to create a regular expression to extract URLs from text documents using Java, but thus far ... Regular expressions better. Cheers, See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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647 views

1 answer

regex - How to match exact "multiple" strings in Python

I've got a list of exact patterns that I want to search in a given string. Currently I've got a ... patterns have some trailing patterns common. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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666 views

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regex - R extract part of string

I have a question about extracting a part of a string. For example I have a string like this: a <- "DP ... extract gene name from INFO column. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

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regex - Logstash optional fields in logfile

I'm trying to parse a logfile using grok Each line of the logfile has fields separated by commas: 13,home,ABC, ... ( a kind of version number ) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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711 views

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regex - Prefix and postfix elements of a bash array

I want to pre- and postfix an array in bash similar to brace expansion. Say I have a bash array ARRAY=( ... the prefix suffix or array elements. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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646 views

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regex - String negation using regular expressions

Is it possible to do string negation in regular expressions? I need to match all strings that do not contain ... wondered if it was possible. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

1 answer

regex - Javascript Regular Expression "Single Space Character"

I am learning javascript and I am analyzing existing codes. In my JS reference book, it says to search on a ... doesn't this generate an error? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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580 views

1 answer

regex - How can I get at the matches when using preg_replace in PHP?

I am trying to grab the capital letters of a couple of words and wrap them in span tags. I am using preg_replace ... initial">$1</span>", $str) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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536 views

1 answer

regex - print specific number of lines after matching pattern

I have to print 81 lines after each occurrence of the expression "AAA" from my input file. How do I go about that? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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