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  • Using a regex to match IP addresses in Python

    - by MHibbin
    I'm trying to make a test for checking whether a sys.argv input matches the regex for an IP address... As a simple test, I have the following... import re pat = re.compile("\d{1,3}.\d{1,3}.\d{1,3}.\d{1,3}") test = pat.match(hostIP) if test: print "Acceptable ip address" else: print "Unacceptable ip address" However when I pass random values into it, it returns "Acceptable ip address" in most cases, except when I have an "address" that is basically equivalent to \d+ Any thoughts welcome. Cheers Matt

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  • Regex to match card code input

    - by kate
    How can I write a regex to match strings following these rules? 1 letter followed by 4 letters or numbers, then 5 letters or numbers, then 3 letters or numbers followed by a number and one of the following signs: ! & @ ? I need to allow input as a 15-character string or as 3 groups of 5 chars separated by one space. I'm implementing this in JavaScript.

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  • .NET Regex Instance Caching

    - by jvenema
    I've read this article, which describes how instance vs static methods get called with a .NET regex. However, what about if the instance itself is static? Does anyone know if .NET does any sort of caching that could potentially cause a memory leak?

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  • Perl - how to access dot within regex?

    - by goe
    Hi, I use this codition to check if the value is alphanumeric values: $value =~ /^[a-zA-Z0-9]+$/ How can I modify this regex to account for a possible dot "." in the value without accepting any other special characters?

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  • Regex: Getting content from url

    - by farazshuja
    i want to get "the-game" using regex from urls like http ://www.somesite.com.domain.webdev.domain.com/en/the-game/another-one/another-one/another-one/ http ://www.somesite.com.domain.webdev.domain.com/en/the-game/another-one/another-one/ http ://www.somesite.com.domain.webdev.domain.com/en/the-game/another-one/ Just created space after http, as its not allowing me to post more links

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  • What's the regex to solve this problem?

    - by Yeti
    I have an array in PHP with URLs like below: http://example.com/apps/1235554/ http://example.com/apps/apple/ http://example.com/apps/126734 http://example.com/images/a.jpg http://example.com/images/b.jpg http://example.com/apps/2331234/ http://example.com/apps/orange/ How can I separate out these urls and push them to another array using Regex: http://example.com/apps/1235554/ http://example.com/apps/126734 http://example.com/apps/2331234/ Only url with apps/{number}/ and apps/{number} should be selected.

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  • Regex javascript to match href

    - by zx
    Hello, <u class="logout" href="/logout.php?h=970c9836674709e6dcdaadd094622fc5&t=1273295318" target="_top">Logout</u> That above is what I want to search for. I want to get h= and t= from that URL, or just get the entire url in href="" How would I do this with regex?

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  • Matching 'weird' characters in PHP regex

    - by Bill X
    I have some strings that need a-strippin': ÜT: 9.996636,76.294363 Tons of long strings of location codes. A literal regex in PHP won't match them, IE $pattern = /ÜT:/; echo preg_replace($pattern, "", $row['location']); Won't match/strip anything. (To know it's working, /T:/ does strip the last bit of that string). What's the encoding error doing on here? Alternately, I would accept a concise way to take out just the numbers.

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  • Matching non-[a-zA-Z] characters in PHP regex

    - by Bill X
    I have some strings that need a-strippin': ÜT: 9.996636,76.294363 Tons of long strings of location codes. A literal regex in PHP won't match them, IE $pattern = /ÜT:/; echo preg_replace($pattern, "", $row['location']); Won't match/strip anything. (To know it's working, /T:/ does strip the last bit of that string). What's the encoding error going on here? Alternately, I would accept a concise way to take out just the numbers.

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  • Multi-line regex support in Vim

    - by Daniel
    I notice the standard regex syntax for matching across multiple lines is to use /s, like so: This is\nsome text /This.*text/s This works in Perl for instance but doesn't seem to be supported in Vim. Instead, I have to be much more specific: /This[^\r\n]*[\r\n]*text/ I can't find any reason for why this should be, so I'm thinking I probably just missed the relevant bits in the vim help. Can anyone confirm this behaviour one way or the other?

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  • php regex - can't find the error

    - by peirix
    Just one simple, specific question: I've got the string {var1}12345{var2}, and I want to get the variable names used. if (preg_match("/{([a-zA-Z0-9]*)}/g", $url, $matches)) { print_r($matches); } If I remove the global flag, it works, but I only get the first variable, as expected. Why isn't it working with a global flag? It works when I'm testing it with the Regex Tester

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  • spring security filter-chain regex pattern

    - by lewap
    In my application which uses spring security I want to define two different areas both using their own spring security filter-chain. My question is: is it possible to define two regex expressions as follows: every path starting with /foobar/* every other path not starting with /foobar The important part here is that the second path should also match if somewhere within it, but not in the beginning, it cotains the /foobar/ string. Thanks

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  • MSBuild 4.0 Regex parsing

    - by Chandam
    I have heard that MSBuild 4.0 has increased Regex parsing support. However, I am unable to find any detailed documentation/links/material on this. Can anyone give a brief description of the new features and/or possibly give pointers to more material? Thanks in advance.

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  • Regex Matches not working as excepted

    - by Eibx
    Hi StackOverflow, I'm trying to group the following string into three groups. 0:0:Awesome:awesome That being "0", "0" and "Awesome:awesome" Using this regular expression: ^([0-9]+)\:([0-9]*)\:(.*)$ It works fine on online regex services: http://rubular.com/r/QePxt57EwU But it seems like .NET doesn't agree.

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  • How can I make this Perl regex work?

    - by Geo
    I have this line ( it's a single line, SO makes it seem like 2 ): /Od /D "WIN32" /D "_DEBUG" /FD /EHa /MDd /Fo"Debug" /Fd"Debug\vc80.pdb" /W3 /c /Zi /clr /TP .\main.cpp" And I want to extract the .\main.cpp. I thought the following would do the trick: if($string =~ /.*\s+(.*)$/i) { print "matched ",$1,"\n"; } because this same regex works in Ruby, and extracts the string I required. How can I get it working?

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  • text replace with regex in sqlserver

    - by Thiyaneshwaran S
    Currently i have sql-server nvarchar(max) column which has text that starts with """ The only thing that varies in the pattern is the < in the class name. The common part is "" Some sample values are "" "" "" All the These span text are present only at the beginning of the column. Any such matching span in the middle should not be removed or matched. Whats the sql server query with regex to remove all these occurance of span?

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  • Segment string into array, regex?

    - by Hanpan
    I have a string which looks like this: "[segment1][segment2][segment2]" What I'd like is to be able to split the string into an array, so I'd end up with: Array[0] = "segment1", Array[1] = "segment2", Array[2] = "segment3" I've tried using the string split function, but it doesn't seem to do exactly what I want. I was wondering if anyone has some regex which might help me out? Thanks in advance

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  • Regex expression in plain english

    - by Sebi
    I'm working on a new Java project and therefore im reading the already existing code. On a very important part of the code if found the following regex expression and i can't really tell what they are doing. Anybody can explain in plain english what they do?? 1) [^,]*|.+(,).+ 2) (\()?\d+(?(1)\))

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