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• Good starting point to learn regular expressions.

  - by Jeremy Rudd

  I'm good at learning new languages and platforms, though whenever I try to learn Reg Ex I cannot make sense of it. I once even used the Regular Expression Designer to try and put some together. What's a good starting point to understanding what looks like the only rocket-science programming language in the world? Links to articles, books or anything else that could help me get my grounding would be appreciated.

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• Is there an existing delegate in the .NET Framework for comparison?

  - by Neil Barnwell

  The .NET framework provides a few handy general-use delegates for common tasks, such as Predicate<T> and EventHandler<T>. Is there a built-in delegate for the equivalent of CompareTo()? The signature might be something like this: delegate int Comparison<T>(T x, T y); This is to implement sorting in such a way that I can provide a lambda expression for the actual sort routine (ListView.ListViewItemSorter, specifically), so any other approaches welcome.

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• How to deal with Polish Characters while using regex ?

  - by Rachel

  I have street name as KRZYWON ANIELI and so what should be my regex to allow this kind of expression. Currently I have simple one which uses /^[a-zA-Z ]+$/ Kindly advise.

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• Oracle 10g express edition import

  - by Jasim

  How can i import a DMP file into my oracle 10g expression edition database? I tried with imp but its showing an error: IMP-00010: not a valid export file, header failed verification IMP-00000: Import terminated unsuccessfully How can i solve this?

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• Python matching some characters into a string

  - by roaksoax

  Hi All I'm trying to extract/match data from a string using regular expression but I don't seem to get it. I wan't to extract the highlighted characters from the following string: /xubuntu/daily/current/lucid-alternate-**i386**.iso This should also work in case of: /xubuntu/daily/current/lucid-alternate-**amd64**.iso Thanks a lot for your help.

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• Regex for files in a directory

  - by n002213f

  Is it possible to use a regular expression to get filenames for files matching a given pattern in a directory without having to manually loop through all the files.

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• What is wrong with this PHP function.

  - by [email protected]

  I am new to PHP and regular expression. I was going thorugh some online examples and came with this example: <?php echo preg_replace_callback('~-([a-z])~', function ($match) { return strtoupper($match[1]); }, 'hello-world'); // outputs helloWorld ?> in php.net but to my surprise it does not work and keep getting error: PHP Parse error: parse error, unexpected T_FUNCTION Why get error ?

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• Limits GUIs in C#

  - by xarzu

  What are the limits of writing a C# app when you want a truly impressive GUI? At what point does one have to leave Visual C# behind and go into WPF? Also, if I choose to go with WPF, do I have to ditch the Visual Studio IDE and go with Expression Studio?

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• NotePad++ - Why Does Finding ^ Not Work

  - by ChloeRadshaw

  I am trying to move away from TextPad and I just cant get reg expressions like ^ and $ to be replaced. I have definitely ticked the regular expression box What am I doing wrong

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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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• 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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• Getting #Error value from ssrs reporting

  - by deepa

  I have created a dataset with fields "LastRunBuild" and "project" .The LastRunBuild field contain string of data seperated by commas according to each project. But Some Projects have no value in LastRunBuild field.When i am using this expression " iif(Fields!LastRunBuild.Value=nothing, nothing,Split(Fields!LastRunBuild.Value,",").GetValue(3)) " a #Error value returns every time. Please reply...

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• Simple Regex Question

  - by Jim B

  Hey Everyone, I need to search a bunch of files for anything that contains either "tblPayment" or "tblInvoice" I also want to match any tables named "tblPaymentMethod", "tblInvoiceItem", "tblInvoicePayment" Anybody care to help me out with how to write a regular expression for this? Thanks again!

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• Python match and return string in between

  - by Peter S.

  I have stringA = "xxxxxxFoundAaaaaaaaaaaaaaaFoundBxxxxxxx" stringB = "FoundA" stringC = "FoundB" How do I do a regular expression in python in order to return aaaaaaaaaaaaaa? Please help. Thanks in advance.

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• C++ WCHAR: Cannot allocate an array of constant size 0

  - by Rosarch

  I'm trying to create a WCHAR: LONG bufferSize = foo.bar() + 1; WCHAR wszBaz[bufferSize]; The compiler issues an error: error C2057: expected constant expression error C2466: cannot allocate an array of constant size 0 error C2133: 'wszBaz' unknown size What am I doing wrong? UPDATE: I added const but it still gives the same error: const LONG bufferSize = foo.bar() + 1; WCHAR wszBaz[bufferSize];

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• Using preg_replace in php for whitespace between <br/> and <p> tags

  - by Prime Studios

  I need to remove this string if found in my string: <p><br/> </p> Cant replace this: <p><br/>Test. </p> The whitespace expression I am using wasn't working for that, thank you for your help!

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• Android @Override usage

  - by BahaiResearch.com

  (Newbie to Java, old time C# guy.) I have noticed a lot of the use of @Override in Android example code. I thought that all Java methods were by default "Virutal"? What then does @Override do? Example: private class HelloWebViewClient extends WebViewClient { @Override public boolean shouldOverrideUrlLoading(WebView view, String url) { view.loadUrl(url); return true; } }

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• Allow user to only input text?

  - by Michael Quiles

  how do I make a boolean statement to only allow text? I have this code for only allowing the user to input numbers but ca'nt figure out how to do text. bool Dest = double.TryParse(this.xTripDestinationTextBox.Text, out Miles); bool MilesGal = double.TryParse(this.xTripMpgTextBox.Text, out Mpg); bool PriceGal = double.TryParse(this.xTripPricepgTextBox.Text, out Price);

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• GCC doesn't like C++ style casts with spaces

  - by uj2

  I am porting some C++ code to GCC, and apperantly it isn't happy with C++ style casting when sapces are involved, as in unsigned int(-1), long long(ShortVar) etc... It gives an error: expected primary-expression before 'long'. Is there any way to make peace with GCC without going over each one of those and rewrite in c-style?

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• OrderBy on children in a LINQ Query

  - by eka808

  Hello everybody I have a user entity who contains a one to many relationship with a role entity So with this linq expression : from user in USER_TABLE.Include("USERROLE_TABLE") order by user.Name select user I can get users with related roles as a child. My problem is that i want to get roles of each user ordered alphabetically. How can i do that ? I googled a lot and don't find anything Thank's by advance !

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• How to use Groovy Set for unique elements?

  - by Guy

  As simple as this must be I still can't understand where am I wrong: class A { boolean equals(o) { true } } def s = [new A(), new A()] as Set assert s.size() == 1 // Assertion failed: actually gives 2 Which method should I override in order to get uniqueness?

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• Regular expressions - how to match the character '<' not followed by ('a' or 'em' or 'strong')?

  - by Spines

  How would I make a regular expression to match the character '<' not followed by ('a' or 'em' or 'strong') so <hello and <string would match, but <strong wouldn't. UPDATE: Btw, the language I'm using is javascript

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• Find multiple line spanning text and replace using Powershell

  - by MrGrant

  Hello, I am using a regular expression search to match up and replace some text. The text can span multiple lines (may or may not have line breaks). Currently I have this: $regex = "\<\?php eval.*?\>" Get-ChildItem -exclude *.bak | Where-Object {$_.Attributes -ne "Directory"} |ForEach-Object { $text = [string]::Join("`n", (Get-Content $_)) $text -replace $RegEx ,"REPLACED"}

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• Change a regexp in application.js from rails

  - by Markus

  I wand to change the regular expression in my application.js file from within a rails controller. Is that possible?

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• Why does this eval not work in Ruby

  - by Anil

  Can you explain this? I want to eval values and calculations from two different sources. One source gives me the following info(programmatically): 'a = 2' The second source gives me this expression to evaluate: 'a + 3' This works: a = 2 eval 'a + 3' This also works: eval 'a = 2; a + 3' But what I really need is this, and it doesn't work: eval 'a = 2' eval 'a + 3' I would like to understand the difference, and how can I make the last option work. Thanks for your help.

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