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Questions tagged regex

1150 questions · page 23 of 23

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198
votes
18
answers

How do you match only valid roman numerals with a regular expression?

regex roman-numerals
asked 2008-11-06T01:29:25.440
31
votes
3
answers

Regex BNF Grammar

regex grammar bnf
asked 2008-11-05T15:20:47.057
11
votes
19
answers

Why do people defend the regex syntax?

regex syntax
asked 2008-11-05T03:56:04.800
166
votes
17
answers

Regex for quoted string with escaping quotes

regex escaping quotes
asked 2008-10-30T10:53:02.953
39
votes
14
answers

Exclusive Or in Regular Expression

regex xor
asked 2008-10-29T15:07:31.863
13
votes
3
answers

Regex to match sloppy fractions / mixed numbers

regex
asked 2008-10-29T00:13:32.560
12
votes
6
answers

Is it safe to read regular expressions from a file?

regex perl security
asked 2008-10-28T03:04:07.957
13
votes
8
answers

Parsing CSS by regex

php css regex css-parsing
asked 2008-10-25T20:32:48.467
66
votes
9
answers

Can I test if a regex is valid in C# without throwing exception

c# regex
asked 2008-10-20T14:41:46.060
13
votes
12
answers

Why are people using regexp for email and other complex validation?

regex validation email parsing
asked 2008-10-17T11:50:17.110
27
votes
3
answers

Why am I seeing inconsistent JavaScript logic behavior looping with an alert() vs. without it?

javascript regex
asked 2008-10-16T18:35:50.380
147
votes
6
answers

SQL Server Regular expressions in T-SQL

sql-server regex t-sql
asked 2008-10-11T21:10:18.090
199
votes
13
answers

How can I concatenate regex literals in JavaScript?

javascript regex syntax
asked 2008-10-09T00:43:12.760
100
votes
4
answers

Regex to match URL end-of-line or "/" character

regex
asked 2008-10-06T16:42:16.650
1174
votes
10
answers

Is there a regular expression to detect a valid regular expression?

regex
asked 2008-10-05T17:07:35.227
9
votes
4
answers

Yahoo Username Regex

php regex validation yahoo
asked 2008-10-03T21:19:21.320
661
votes
26
answers

How do I match any character across multiple lines in a regular expression?

regex multiline
asked 2008-10-01T18:48:22.160
62
votes
19
answers

Is regular expression recognition of an email address hard?

regex email validation textmatching
asked 2008-10-01T06:22:22.233
28
votes
4
answers

What GNU/Linux command-line tool would I use for performing a search and replace on a file?

regex linux sed gnu
asked 2008-10-01T02:02:55.790
18
votes
5
answers

Perform regex (replace) in an SQL query

sql sql-server regex sql-server-2000
asked 2008-09-29T22:16:39.570
181
votes
7
answers

Interpolating a string into a regex

ruby regex
asked 2008-09-29T18:48:33.673
10
votes
7
answers

Regexp matching of list of quotes strings - unquoted

javascript regex actionscript-3
asked 2008-09-29T05:24:35.557
10
votes
3
answers

Vim Markdown highlighting (list items and code block conflicts)

regex vim syntax markdown highlight
asked 2008-09-26T05:50:16.653
417
votes
20
answers

Searching for UUIDs in text with regex

regex
asked 2008-09-25T22:08:27.433
15
votes
9
answers

How to convert multiple <br/> tag to a single <br/> tag in php

php html regex
asked 2008-09-25T14:12:16.470
42
votes
3
answers

Free alternative to RegexBuddy

regex
asked 2008-09-25T09:55:13.500
57
votes
6
answers

Find out number of capture groups in Python regular expressions

python regex
asked 2008-09-24T13:14:50.377
24
votes
9
answers

Passing a regex substitution as a variable in Perl

regex perl
asked 2008-09-24T03:00:42.443
1060
votes
46
answers

How to validate phone numbers using regex

regex validation phone-number
asked 2008-09-23T20:13:42.937
12
votes
3
answers

apache mod_rewrite one rule for any number of possibilities

regex apache mod-rewrite
asked 2008-09-22T22:06:02.253
417
votes
22
answers

Regular expression to match DNS hostname or IP Address?

regex dns
asked 2008-09-19T22:38:01.703
99
votes
11
answers

How do I verify that a string only contains letters, numbers, underscores and dashes?

python regex string
asked 2008-09-18T04:04:58.170
36
votes
5
answers

How can I find the location of a regex match in Perl?

regex perl
asked 2008-09-17T20:37:16.700
128
votes
25
answers

A regex for version number parsing

regex versioning
asked 2008-09-17T11:10:06.143
358
votes
16
answers

Split a string by spaces -- preserving quoted substrings -- in Python

python regex
asked 2008-09-17T04:25:15.710
12
votes
11
answers

Regular expression that rejects all input?

regex
asked 2008-09-15T12:42:53.067
10
votes
3
answers

Emacs query-replace with textual transformation

regex emacs
asked 2008-09-11T21:54:47.377
11
votes
7
answers

Python regular expression for HTML parsing

python regex web-scraping beautifulsoup
asked 2008-09-10T21:49:53.900
73
votes
4
answers

What is a regex "independent non-capturing group"?

java regex
asked 2008-09-08T19:57:03.767
78
votes
3
answers

Python re.sub with a flag does not replace all occurrences

python regex
asked 2008-09-03T21:00:33.863
72
votes
15
answers

What is the regex pattern for datetime (2008-09-01 12:35:45 )?

php regex datetime
asked 2008-09-01T10:58:24.607
494
votes
20
answers

How to replace plain URLs with links?

javascript regex
asked 2008-09-01T09:58:49.647
29
votes
4
answers

Replacing the nth instance of a regex match in Javascript

javascript regex
asked 2008-08-30T17:26:09.230
85
votes
29
answers

How can test I regular expressions using multiple RE engines?

regex testing
asked 2008-08-28T13:34:55.510
24
votes
7
answers

How to write a regular expression pattern that is capable of validating URIs?

.net regex
asked 2008-08-27T18:43:21.237
24
votes
14
answers

Regex to match all HTML tags except <p> and </p>

html regex perl
asked 2008-08-27T10:41:44.793
141
votes
12
answers

Using Regex to generate Strings rather than match them

java regex
asked 2008-08-22T11:35:41.990
17
votes
5
answers

Python Regular Expressions to implement string unescaping

python regex backreference
asked 2008-08-17T18:20:21.060
166
votes
1
answers

Learning Regular Expressions

regex
asked 2008-08-07T14:05:23.677
59
votes
4
answers

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

php regex html-parsing preg-replace
asked 2008-08-05T00:35:17.493
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