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• Get scanner to include but ignore quoted text?

  - by user1086516

  Basically my problem is this, I need to parse text where , is the delimiter but anything in " " quotes should not be checked for a delimiter. Is this what the Scanner.skip method is for? I would check it myself but I don't understand how to write a regex pattern in java where the token is something in between two " ". I also want to include any quoted text in the proper token which was delimited by the valid ,.

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• How to find multiple words on the same line in Notepad++

  - by Mike

  I have a 4MB log file from the Windows XP firewall which I'm trying to find lines that have both DROP and an IP and a port number. My regex-fu is weak and I'm assuming this is the reason I'm struggling. The words "DROP", "10.1.1.1" (for example) and "8801" need to be found on the same line and may be spread across the line and separated by one or more other words. Any help (or suggestions of another method to do this) are much appreciated.

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• Regular expression that matches valid IPv6 addresses

  - by Readonly

  I'm having trouble writing a regular expression that matches valid IPv6 addresses, including those in their compressed form (with "::" or leading zeros omitted from each byte pair). Can someone suggest a regular expression that would fulfill the requirement? I'm considering expanding each byte pair and matching the result with a simpler regex.

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• Java - Regular expression question

  - by Jacob

  I am new to regular expressions. I want to use java's replaceAll() function to replace any CSS comments in a string. Basically I want to use regex to search for anything that is surrounded by "/*" and "*/" and replace it with "".

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• Negative look ahead java

  - by venu

  I need an expression to capture a string like this "A"[A string that is NOT atleast 5 and atmost 6 digits]"B", In other words capture anything that is NOT the following A[0-9][0-9][0-9][0-9][0-9]B A[0-9][0-9][0-9][0-9][0-9][0-9]B I have tried the negative look ahead regex = "a((?![0-9]{5,6}).)*d" ; But it fails to capture all scenarios. Please help venu

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• Whats the difference between \z and \Z in a regular expression and when and how do I use it?

  - by Mister M. Bean

  From http://java.sun.com/j2se/1.5.0/docs/api/java/util/regex/Pattern.html: \Z The end of the input but for the final terminator, if any \z The end of the input But what does it mean in practice? Can you give me an example when I use either the \Z or \z. In my test I thought that "StackOverflow\n".matches("StackOverflow\\z") will return true and "StackOverflow\n".matches("StackOverflow\\Z") returns false. But actually both return false. Where is the mistake?

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• Using .NET Regular Expression, match any string with exactly 9 digits

  - by Nick

  I'm trying to create a regex expression to match any string that has exactly 9 digits. the digits can exist anywhere in the string. For example, if you passed in the following strings, you'd get a match: 123456789 123aeiou456abc789 These strings would fail to provide a match 12345678 1234567890

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• Split a string by two characters

  - by David

  Hi, Firstable i want to match if a string has the following format: $abc #xyz or $abc .xyz. The abc and xyz mean only alphanumeric string. If it's matched then i need to extract the first $abc and the last #xyz, all that using pure javascript and maybe regex. The pattern is in the following order: Dollar Sign Unlimited alphanumeric string space a hash or point Unlimited alphanumeric string Thanks in advance for any help.

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• What's wrong with this Perl regular expression?

  - by neversaint

  I have a lines like this NF419andZNF773 (e=10^-92,). ZNF571 (e=2 10^-14,) What's the regex for extracting the results above so that it gives NF419andZNF773 - 10^-92 ZNF571 - 2 10^-14 I tried this but fail. $line =~ /(\w+)\s\(e=\s(.*),\)/; print "$1 - $2\n";

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• C#: How to replace "-" with " -" only when it's not preceded by "e"?

  - by MaDDoX

  I imagine I should use Regex for that but I still scratch my head a lot about it (and the only similar question I found wasn't exactly my case) so I decided to ask for help. This is the input and expected output: Input: "c-0.68219,-0.0478 -1.01455-0.0441 0.2321e-4,0.43212" Output:"c -0.68219,-0.0478 -1.01455 -0.0441 0.2321e-4,0.43212" Basically I need either commas or spaces as value separators, but I can't break the exponential index (e-4). Maybe do two successive replacements?

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• emacs: is there a way to specify a case-insensitive search in a regexp?

  - by Cheeso

  In Javascript, I just need to append a i to the regexp to make it case-insensitive. In .NET, I use a RegexOption.CaseInsensitive. I know about case-fold-search. What I want is to specify that behavior in the regex itself. Possible?

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• Add a + sign to a +ve number in PHP

  - by user318466

  I need to design a function to return -ve numbers unchanged but should add a + sign at the start of the number if its alreay no present. Example: Input Output ---------------- +1 +1 1 +1 -1 -1 It will get only numeric input. function formatNum($num) { # something here..perhaps a regex? } This function is going to be called several times in echo/print so the quicker the better.

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• PHP Regular Expression to quotations to attributes

  - by atwellpub

  hey Guys, I need to run a string of html through a regex function that checks to see if the attributes are closed in quotes, and if they aren't then close them. for example i want <img src=http://www.domain.com/image.gif border=0> to turn into <img src='http://www.domain.com/image.gif' border='0'> Can anyone help me?

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• Why isn't there a regular expression standard?

  - by weiy

  I know there is the perl regex that is sort of a minor de facto standard, but why hasn't anyone come up with a universal set of standard symbols, syntax and behaviors?

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• [Javascript] Split string by HTML entities?

  - by user366124

  Hello, My string contain a lot of HTML entities, like this &#x22;Hello&nbsp;&lt;everybody&gt;&#x22;&nbsp;there And I want to split it by HTML entities into this : Hello everybody there Can anybody suggest me a way to do this please? May be using Regex? Thanks so much.

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• Regular expression for a list of numbers without other characters

  - by JamesW

  I need a regular expression for a list of numbers in a text box with carriage returns and line feeds, but no other characters. e.g. 1234 5678 5874 3478 I have this: Regex(@"\d\r\n${0,}?"); ... but it is accepting commas when I paste them into my text box: e.g. 1234, 5678 5874, 3478 Can someone please tell me what I'm doing wrong? Thanks

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• PHP: How do I find (Oracle) parameters in a SQL query?

  - by Bartb

  Suppose you have a string: "SELECT * FROM TABLE WHERE column1 = :var1 AND column2 = :var2" Now, how do I get an array with all the variables like so: Array ( [0] => :var1 [1] => :var2 ) I've tried it with PHP's preg_match_all, but I struggle with the regex. $varcount = preg_match_all("/ :.+ /", $sql, $out);

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• how to download page from source code

  - by newBie

  i need to download page from source code..for example Cellini's Italian Restaurant i want to download the "/len/aaproximat...php"..i didnt find the suitable regex for it..and i need to download that page..can anyone help? im using vb.net

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• How to replace the string based on an expression

  - by deepak

  I'm having a string where i'm using some placeholders to replace it with some values based on an object. It is like the following: Hello User <#= UserName #> I need to replace the <#= UserName # with a value. How can this be done with a regex? Please help. I dont want a string replace solution. There are somany placeholders and hardcoding the <#= UserName # and replace with the value is pointless

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• Java split is eating my characters.

  - by Fenris_uy

  Hi, I have a string like this String str = "la$le\$li$lo". I want to split it to get the following output "la","le\$li","lo". The \$ is a $ escaped so it should be left in the output. But when I do str.split("[^\\\\]\\$") y get "l","le\$l","lo". From what I get my regex is matching a$ and i$ and removing then. Any idea of how to get my characters back? Thanks

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• preg_match_all with surrounding data

  - by user323304

  Hey. I have a large amount of log data that I need to get some relevant information out of. The syntax is: WORD1 some text KEYWORD some text WORD2 WORD1 some text KEYWORD some text WORD2 WORD1 some text KEYWORD some text WORD2 WORD1 some text KEYWORD some text WORD2 Would it be possible to use regex to get a certain block out of it - so that when I queried some keyword it would return WORD1 some text THIS_KEYWORD some text WORD2 PS: There could be multiple instances of one keyword, it should return all of the blocks (preg_match_all, PREG_SET_ORDER?).

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• Regular Expression: Match untill pattern is found

  - by ZafarYousafi

  Hi, I want to extract the status from the string untill I found a timespan. My input is something like "Something in start but not with this keyword of sure. STATUS: My Status Is Here Which can be anything but timespan 23:59:01 and so on. I want to extract the string after STATUS: untill 23:59:01 is found. How can i achieve this through regex. this 23:59:01 is a timespan and it is always in this format hh:mm:ss

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• how to read only english characters

  - by ralph

  I am reading a file that sometimes has chinese and characters of languages other than english. How can I write a regex that only reads english words/letters? should it just be /^[a-zA-Z]+/ ? If I do the above then words like eété will still be picked but I don't want them to be picked: "été".match(/^[a-zA-Z]+/) => #nil good I didnt want that word "eété".match(/^[a-zA-Z]+/) => #not nil tricked into picking something i did not want

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• C#: Loop through substring patterns in a string

  - by ilann

  my pattern is the following: {(code)} where code is a number (up to 6 digits), or 2 letter followed by a number. For example: {(45367)} {(265367)} {(EF127012)} I want to find all occurrences in a long string, I can't just use pure regex , because I need to preform some action when i find a match (like logging the position and the type of the match).

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• What is the efficient way to find some pattern in a big text?

  - by salman

  I want to extract email addresses from a large text file. what is the best way to do it? My idea is to find '@' in the text and use "Regex" to find email address into substring at (for example) 256 chars before this position and length of 512. P.S.: Straightforwardly I want to know the best and most efficient way to find some pattern (like email addresses) in a huge text.

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