Recent questions tagged Regex

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Consider the following method: public static boolean isPrime(int n) { return ! (new String(new char[n])). ... whether an integer is prime? See Question&Answers more detail:os...

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

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regex - Amend Regular Expression to allow German umlauts, French accents and other valid European letters

I need to validate a text input so a user can insert characters/text that may include German umlauts, French accents and any ... ?ü??ü -_.]*$/" See Question&Answers more detail:os...

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

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regex - Wildcard matching in Java

I'm writing a simple debugging program that takes as input simple strings that can contain stars to indicate a ... the algorithm from scratch? See Question&Answers more detail:os...

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

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regex - Regular Expression all characters except last one

This is my string: 50.00.00..00.00 I want to match all . except the last one, so after a replace I ... .00 Can somebody help me with 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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regex - what is regular expression?

I know this question seems stupid, but it isn't. I mean what is it exactly. I have a fair understanding ... A simple example would be helpful. See Question&Answers more detail:os...

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

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regex - Remove spaces between words of a certain length

I have strings of the following variety: A B C Company XYZ Inc S & K Co I would like to remove the ... expression to use in gsub for 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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regex - How to grep a vector and return a single TRUE or FALSE?

Is there a grep function in R that returns TRUE if a pattern is found anywhere in the given character ... positions of each element found. See Question&Answers more detail:os...

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

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regex - Regular Expression, remove everything after last forward slash

I'm trying to use a regular expression within PowerShell to remove everything from the last slash in this string; ... get it to work. 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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regex - Regular Expression to extract src attribute from img tag

I am trying to write a pattern for extracting the path for files found in img tags in HTML. String string = ... including the 'border="0"? See Question&Answers more detail:os...

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

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regex - nginx - redirect a certain path to another domain

I am very unfamiliar with nginx, as a forewarning, and also can't find any actual references on the regex ... eluding me. Thanks in advance. See Question&Answers more detail:os...

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

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825 views

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regex - UPPERCASE, lowercase, Capitalize an Ant property

In Ant, I have a property named 'some_property', and let's say its value is "hello". I'm trying ... . Anyone knows the correct regexes? See Question&Answers more detail:os...

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

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regex - Regular Expression Compiler

I have had the need to use regular expressions only a few times in the work that I have done. However, ... investing the time in realising it? See Question&Answers more detail:os...

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

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regex - sed insert line command OSX

I'm trying to insert text to the third line in a file using sed, and the syntax I've found on other forums ... ' ' as my extension. 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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978 views

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regex - How to delete rows in python pandas DataFrame using regular expressions?

I have a pattern: patternDel = "( $(MoM|QoQ)$)"; And I want to delete all rows in pandas dataframe ... are more than 100k rows in dataframe. See Question&Answers more detail:os...

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

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785 views

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regex - Nginx - Rewrite the request_uri before uwsgi_pass

I have a Nginx vhost than is configured as such: ... location /one { include uwsgi_params; uwsgi_pass unix:///.../ ... is not. How to fix 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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723 views

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regex - Why isn't there a regular expression standard?

I know there is the perl regex that is sort of a minor de facto standard, but why hasn't anyone ... standard symbols, syntax and behaviors? See Question&Answers more detail:os...

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

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681 views

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regex - Using match to find substrings in strings with only bash

Although I am almost sure this has been covered, I can't seem to find anything specific to this. As I continue ... t return what they find. Why? See Question&Answers more detail:os...

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

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887 views

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regex - How can one delete files in a folder matching a regular expression using PowerShell?

I know a common characteristic of the file names of a number of unwanted files on my Windows computer ... regular expression PowerShell command? See Question&Answers more detail:os...

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

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684 views

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regex - grepping using the "|" alternative operator

The following is a sample of a large file named AT5G60410.gff: Chr5 TAIR10 gene 24294890 24301147 . + . ID= ... . Where have I gone wrong? See Question&Answers more detail:os...

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

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regex - Does Ruby regular expression have a not match operator like "!~" in Perl?

I just want to know whether ruby regex has a not match operator just like !~ in perl. I feel it's ... regex patterns in the xxx part. See Question&Answers more detail:os...

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

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1.2k views

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regex optional word match

I'm trying to create a regex for extracting singers, lyricists. I was wondering how to make lyricists ... make Lyricists search optional? See Question&Answers more detail:os...

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

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775 views

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regex - Fuzzy Regular Expressions

In my work I have with great results used approximate string matching algorithms such as Damerau-Levenshtein distance ... do this effectively? See Question&Answers more detail:os...

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

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764 views

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regex - How do you unit test regular expressions?

I'm new to TDD, and I find RegExp quite a particular case. Is there any special way to unit test them ... just treat them as regular functions? See Question&Answers more detail:os...

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

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754 views

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regex - JavaScript Split without losing character

I want to split certain text using JavaScript. The text looks like: 9:30 pm The user did action A. 10:30 pm Welcome ... 9: or 10:) etc? 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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regex - PHP: How to match a range of unicode paired surrogates emoticons/emoji?

anubhava's answer about matching ranges of unicode characters led me to the regex to use for cleaning up a ... any "escape" alternative here? See Question&Answers more detail:os...

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

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661 views

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regex - mognoose searching with regular expression in multiple columns

I have a mongoose model with schema defined as - var campusNotesSchema = mongoose.Schema({ noteId:{type: ... array for the matching strings See Question&Answers more detail:os...

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

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797 views

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regex - Regular expression to match US phone numbers

The regular expression ^(((d{3}) ?)|(d{3}-))?d{3}-d{4}$ matches strings of the form XXX-XXX-XXXX ... other string formats which I don't want? See Question&Answers more detail:os...

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

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690 views

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regex - re.sub how to do it in one step?

I try to put this steps in one, but it doesnt work w = re.sub('[0-9]', r'9', w) w = re.sub(' ... to make from such strings as XXxxxx999 --> Xx9. See Question&Answers more detail:os...

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

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