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• How to replace all the blanks within square brackets with an underscore using sed?

  - by Ringerrr

  I figured out that in order to turn [some name] into [some_name] I need to use the following expression: s/\(\[[^ ]*\) /\1_/ i.e. create a backreference capture for anything that starts with a literal '[' that contains any number of non space characters, followed by a space, to be replaced with the non space characters followed by an underscore. What I don't know yet though is how to alter this expression so it works for ALL underscores within the braces e.g. [a few words] into [a_few_words]. I sense that I'm close, but am just missing a chunk of knowledge that will unlock the key to making this thing work an infinite number of times within the constraints of the first set of []s contained in a line (of SQL Server DDL in this case). Any suggestions gratefully received....

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• Regular expressions in java

  - by rookie

  String s= "(See <a href=\"/wiki/Grass_fed_beef\" title=\"Grass fed beef\" " + "class=\"mw-redirect\">grass fed beef.) They have been used for " + "<a href=\"/wiki/Paper\" title=\"Paper\">paper-making since " + "2400 BC or before."; In the string above I have inter-mixed html with text. Well the requirement is that the output looks like:- They have been used for paper-making since 2400 BC or before. Could some one help me with a generic regular expression that would produce the desired output from the given input? Thanks in advance!

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• awk: access captured group from line pattern

  - by rampion

  If I have an awk command pattern { ... } and pattern uses a capturing group, how can I access the string so captured in the block?

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• python regular expressions, how to extract longest of overlapping groups

  - by xulochavez

  Hi How can I extract the longest of groups which start the same way For example, from a given string, I want to extract the longest match to either CS or CSI. I tried this "(CS|CSI).*" and it it will return CS rather than CSI even if CSI is available. If I do "(CSI|CS).*" then I do get CSI if it's a match, so I gues the solution is to always place the shorter of the overlaping groups after the longer one. Is there a clearer way to express this with re's? somehow it feels confusing that the result depends on the order you link the groups.

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• In C# VS2008 how to replace new SqlParameter("@values", SqlDbType.SomeType, 1500)) to ("@values", Sq

  - by CodeYun

  In C# VS2008 how to replace new SqlParameter("@Description", SqlDbType.NChar, 1500) or new SqlParameter("@IsRequired", SqlDbType.Bit) to "@Description", SqlDbType.NChar, 1500 or "@IsRequired", SqlDbType.B the idea is to remove new SqlParameter() and leave the parameters inside it. I have thounds of lines code have this pattern. I just want to pass compile by using some regular expression.

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• Get a number after a character in a string...

  - by James Rattray

  I'm making my own forums and I don't want any BB code on it, but instead my own, so i've gotten [b][u][img] working etc. But i'm having problems with [quote=1][/quote] where the number is the user id... E.G lets say I quote someone So once I submit my post: (The variable $post would be:) '[quote=1] Quoted post :P[/quote]' How would I then get the number out the string? (But not the wrong number -not a number in the quoted post) (So I could then use str_replace() to replace with a table which makes it looked quoted) ?? :)

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• Need to split a string into two parts in java

  - by Reddy

  I have a string which contains a contiguous chunk of digits and then a contiguous chunk of characters. I need to split them into two parts (one integer part, and one string). I tried using String.split("\D", 1), but it is eating up first character. I checked all the String API and didn't find a suitable method. Is there any method for doing this thing?

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• capture text, including tags from string, and then reorder tags with text

  - by Brian

  I have the following text: abcdef<CONVERSION>abcabcabcabc<2007-01-12><name1><2007-01-12>abcabcabcabc<name2><2007-01-11>abcabcabcabc<name3><2007-02-12>abcabcabcabc<name4>abcabcabcabc<2007-03-12><name5><date>abcabcabcabc<name6> I need to use regular expressions in order to clean the above text: The basic extraction rule is: <2007-01-12>abcabcabcabc<name2> I have no problem extracting this pattern. My issue is that within th text I have malformed sequences: If the text doesn't start with a date, and end with a name my extraction fails. For example, the text above may have several mal formed sequences, such as: abcabcabcabc<2007-01-12><name1> Should be: <2007-01-12>abcabcabcabc<name1> Is it possible to have a regular expression that would clean the above, prior to extracting my consistent pattern. In short, i need to find all mal formed patterns, and then take the date tag and put it in front of it, as provided in the example above. Thanks.

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• Erroneous Matches with Regular Expression

  - by Ballsacian1

  $regexp = '/(?:<input\stype="hidden"\sname="){1}([a-zA-Z0-9]*)(?:"\svalue="1"\s\/>)/'; $response = '<input type="hidden" name="7d37dddd0eb2c85b8d394ef36b35f54f" value="1" />'; preg_match($regexp, $response, $matches); echo $matches[1]; // Outputs: 7d37dddd0eb2c85b8d394ef36b35f54f So I'm using this regular expression to search for an authentication token on a webpage implementing Joomla in order to preform a scripted login. I've got all this working but am wondering what is wrong with my regular expression as it always returns 2 items. Array ( [0] => [1] => 7d37dddd0eb2c85b8d394ef36b35f54f) Also the name of the input I'm checking for changes every page load both in length and name.

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• Regular Expression to match text outside quotes etc...

  - by Parhs

  "([\"'])(?:\\\\?+.)*?\\1" I came up to this regexp to match all quoted strings.. It seems to work great... The problem is how to match the text that isnt inside quotes.. The inverse -negative somehow... I read the documentation and (?!(([\"'])(?:\\\\?+.)*?\\1)) doesnt work

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• Regular expression on a URL

  - by alphaexe

  I need to be able to catch when the URL contains a image of multiple file types or follow this syntax. http://localhost:8080/fdlic-web/webpic/101 Here is what i have so far. (.*)(jpg|gif|png|bmp|jpeg|webpic/(\d+))$

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• Php regular expression to match a div

  - by Thoman

  Hello all <div id="a"> <div id="b"> Foo </div> <div id="m"> Bar </div> </div> <div id="c"> Bar </div> I want find all object in id="a" and out put is <div id="a"> <div id="b"> Foo </div> <div id="m"> Bar </div> </div> Geat thanks.

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• how to find hidden information

  - by user356029

  hye im newbie here.. im looking for a hidden information in a source code..in the page, the information is visible but when i try to find it in the source code, the information is not there..but behind the code it has [script type = "text/javascript].. i believe the information i need is in between the javascript..my question is, how to get the information between the javascript?..it has the innerHtml code between the javascript..any one can help?

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• Java String replaceAll with conditions

  - by user1483570

  I am not good in regular expressions and I need help in replacing the string. String str = "Name_XYZ_"; str = "XYZ_NAME_"; So how can I replace "Name_" or "_NAME_" from above two strings with empty string? The conditions are "Name" can be in any case and it can be at index 0 or at any index but preceded by "_". So far I tried, String replacedString = str.replaceAll("(?i)Name_", ""); // This is not correct. This is not the homework. I am working on XML file that needs such kind of processing. Please help. Thank you.

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• Getting a date value in a postgres table column and check if it's bigger than todays date

  - by Roland

  I have a Postgres table called clients. The name column contains certain values eg. test23233 [987665432,2014-02-18] At the end of the value is a date, I need to compare this date, and return all records where this specific date is younger than today I tried select id,name FROM clients where name ~ '(\d{4}\-\d{1,2}\-\d{1,2})'; but this isn't returning any values. How would I go about to achieve the results I want?

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• JavaScript regular expressions to validate string

  - by Activist

  I'm not that good with regular expressions... I need a JavaScript regular expression that will do the following: The string can contain letters (upper and lower case), but not punctuations such as éàïç... The string can contain numbers (0..9) anywhere in the string, except on the first position. The string can contain underscores (_). Valid strings: foo foo1 foo_bar fooBar Invalid strings: 1foo -- number as first character foo bar -- space föo -- punctuation ö Many thanks!

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• How to generate random strings that match a given regexp?

  - by Pies

  Duplicate: Random string that matches a regexp No, it isn't. I'm looking for an easy and universal method, one that I could actually implement. That's far more difficult than randomly generating passwords. I want to create an application that takes a regular expression, and shows 10 randomly generated strings that match that expression. It's supposed to help people better understand their regexps, and to decide i.e. if they're secure enough for validation purposes. Does anyone know of an easy way to do that? One obvious solution would be to write (or steal) a regexp parser, but that seems really over my head. I repeat, I'm looking for an easy and universal way to do that. Edit: Brute force approach is out of the question. Assuming the random strings would just be [a-z0-9]{10} and 1 million iterations per second, it would take 65 years to iterate trough the space of all 10-char strings.

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• Trying to match what is before /../ but after / with regular expressions

  - by tim

  I am trying to match what is before /../ but after / with regular expressions, but i want it to look back and stop at the first / I feel like I am close but it just looks at the first slash and then takes everything after it like... input is this: this/is/a/./path/that/../includes/face/./stuff/../hat and my regular expression is #\/(.*)\.\.\/# matching /is/a/./path/that/../includes/face/./stuff/../ instead of just that/../ and stuff/../ how can i adapt what i'm doing to work?

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• Advanced replace in C#

  - by Andreas

  Hi, I like to replace some attributes inside a xml (string) with c#. Example xml: <items> <item x="15" y="25"> <item y="10" x="30"></item> </item> <item x="5" y="60"></item> <item y="100" x="10"></item> </items> In this case I like to change the x-attributes to the combined value of x and y. Result xml: <items> <item x="40" y="25"> <item y="10" x="40"></item> </item> <item x="65" y="60"></item> <item y="100" x="110"></item> </items>

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• How to escape regular expression in javascript ?

  - by Relax

  My codes is like pattern = 'arrayname[1]'; // fetch from dom, make literal here just for example reg = new RegExp(RegExp.quote(pattern), 'g'); mystring.replace(reg, 'arrayname[2]'); But it just cannot get running with error message says: "RegExp.quote is not a function", am i missing something simple?

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

  - by Adam Pierce

  I have a string which is like this: this is "a test" I'm trying to write something in Python to split it up by space while ignoring spaces within quotes. The result I'm looking for is: ['this','is','a test'] PS. I know you are going to ask "what happens if there are quotes within the quotes, well, in my application, that will never happen.

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• Regular Expression - Block Spam

  - by Immanuel

  Could someone lead me on finding a regular expression that blocks a comma separated list of Spam words I already have? The regular expression needs to match a string with the spam word list I already have. Not that it matters, but I am using PHP.

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• Is it a bug in Ecmascript - /\S/.test(null) returns true ?

  - by Lauri

  Both in Actionscript3 and Javascript these statements give the same result: /\S/.test(null) = true /null/.test(null) = true /m/.test(null) = false /n/.test(null) = true Seems that null value is converted into string "null" in this case. Is this a known bug in Ecmascript or am I missing something?

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• .NET Regular Expression for N number of Consecutive Characters

  - by Chris

  I need a regular expression that matches three consecutive characters (any alphanumeric character) in a string. Where 2a82a9e4eee646448db00e3fccabd8c7 "eee" would be a match. Where 2a82a9e4efe64644448db00e3fccabd8c7 "444" would be a match. etc.

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• How do you make a regular expression that matches a word with one randomly inserted character?

  - by Dfowj

  Hey all, i want to use a regular expression to match a word with one specified character randomly placed within it. I also want to keep that 'base' word's characters in their original order. For example, with the 'base' word of test and the specified character of 'y', i want the regular expression to match all the following, and ONLY the following: ytest, tyest, teyst, tesyt, testy Incase it matters, im working in javascript and using the dojo toolkit. Thanks!

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