Recent questions tagged regex

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regex - How can I validate US Social Security Number?

Anyone out there know how to improve this function? I'm not worried about shortening the code, I'm sure this ... return false; return true; } See Question&Answers more detail:os...

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

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699 views

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regex - How to return the substring of a string between two strings in Ruby?

How would I return the string between two string markers of a string in Ruby? For example I have: input_string ... Using Ruby 1.9.3. See Question&Answers more detail:os...

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

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653 views

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regex - sed: Can my pattern contain an "is not" character? How do I say "is not X"?

How do I say "is not" a certain character in sed? See Question&Answers more detail:os...

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

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606 views

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regex - Groovy syntax for regular expression matching

What is the Groovy equivalent of the following Perl code? my $txt = "abc : groovy : def"; if ($txt =~ / : ( ... m[0][1] println "MATCH=$match" } See Question&Answers more detail:os...

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

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849 views

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regex - Ruby global match regexp?

In other languages, in RegExp you can use /.../g for a global match. However, in Ruby: "hello hello".match ... . How do I capture all hellos? See Question&Answers more detail:os...

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

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795 views

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regex - What does $1 mean in Perl?

What does $1 mean in Perl? Further, what does $2 mean? How many $number variables are there? See Question&Answers more detail:os...

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

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694 views

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regex - What regular expression engine does Nginx use?

What regular expression engine does Nginx use? There are a lot of possibilities. More to the point, what flavor of ... can I make use of? See Question&Answers more detail:os...

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

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780 views

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regex - How to match any non white space character except a particular one?

In Perl S matches any non-whitespace character. How can I match any non-whitespace character except a backslash ? See Question&Answers more detail:os...

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

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850 views

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regex - Redirecting a subdomain with a regular expression in nginx

The nginx documentation says that the server_name directive supports regular expressions. I've been banging my head ... to use regex. See Question&Answers more detail:os...

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

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898 views

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regex - How to get a website's favicon with PHP?

I want to get, requested website's favicon with PHP. I have been recommended using Google's favicon service ... favicon using regex, please? See Question&Answers more detail:os...

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

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722 views

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regex - Using regexp to select rows in R dataframe

I'm trying to select rows in a dataframe where the string contained in a column matches either a regular ... more but without success... See Question&Answers more detail:os...

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

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630 views

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regex - Java code/library for generating slugs (for use in pretty URLs)

Web frameworks such as Rails and Django has built-in support for "slugs" which are used to generate readable and ... /Rails type slugs in Java? See Question&Answers more detail:os...

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

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693 views

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regex - How to explain "$1,$2" in JavaScript when using regular expression?

A piece of JavaScript code is as follows: num = "11222333"; re = /(d+)(d{3})/; re.test(num); num.replace ... know what "$1,$2" mean? Thank you. See Question&Answers more detail:os...

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

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710 views

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regex - python re.split() to split by spaces, commas, and periods, but not in cases like 1,000 or 1.50

I want to use python re.split() to split a string into individual words by spaces, commas and periods. But I don't ... "eight", "nine", "ten"] See Question&Answers more detail:os...

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

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667 views

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regex - Is there a decent Vim regexp OR command? What is the best way to find mismatched if else's?

I have some mismatching if and fi statements in a script. I would like to strip out everything but the ... endif endif endif endfor endfunction See Question&Answers more detail:os...

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

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761 views

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regex - HTML5 form validation pattern alphanumeric with spaces?

I have the following input tag in my html5 form: <p> <label>Company Name*</label> <input type="text" name= ... what I should add to the pattern. 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 - Regular Expression In Android for Password Field

How can i validating the EditText with Regex by allowing particular characters . My condition is : Password Rule: ... to achieve my objective? See Question&Answers more detail:os...

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

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958 views

1 answer

regex - Find lines not starting with " in Notepad++

I try to verify a CSV file where we had problems with line breaks. I want to find all lines not starting with ... I negate /^"/gim properly? 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 - Alphanumeric, dash and underscore but no spaces regular expression check JavaScript

Trying to check input against a regular expression. The field should only allow alphanumeric characters, dashes and underscores ... ('valid'); } See Question&Answers more detail:os...

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

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586 views

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regex - Regular Expression Rules in Outlook 2007?

Is it possible to create rules in Outlook 2007 based on a regex string? I'm trying to add a filter for messages ... .Save End If End If End Sub See Question&Answers more detail:os...

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

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621 views

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regex - How to remove carriage returns and new lines in Postgresql?

All, I am stuck again trying to get my data in a format that I need it in. I have a text field that ... id = 5520805582; Thanks in advance, Adam See Question&Answers more detail:os...

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

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494 views

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regex - How to use grep to get anything just after `name=`?

I'm stuck in trying to grep anything just after name=, include only spaces and alphanumeric. e.g.: name= ... Any help is much 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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696 views

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regex - $1 and 1 in Ruby

When using regular expressions in Ruby, what is the difference between $1 and 1? 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 - Regular expression to match a word or its prefix

I want to match a regular expression on a whole word. In the following example I am trying to match s or ... expression to match a whole word? See Question&Answers more detail:os...

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

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837 views

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regex - How to copy marked text in notepad++

I have a part of HTML source file that contains strings that I want to select and copy at once, using the regex ... possible or am I too dumb? See Question&Answers more detail:os...

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

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549 views

1 answer

regex - Ruby Regexp group matching, assign variables on 1 line

I'm currently trying to rexp a string into multiple variables. Example string: ryan_string = "RyanOnRails: This is a test ... how I'm doing 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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707 views

1 answer

regex - How to search for occurrences of more than one space between words in a line

How to search for occurrences of more than one space between words in a line 1. this is a line containing 2 ... regex. What regex should I use? See Question&Answers more detail:os...

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

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881 views

1 answer

regex - Delete all lines starting with # or ; in Notepad++

Using Notepad++, how do I remove all lines starting with # or ;? See Question&Answers more detail:os...

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

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