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• What is the regex patten for this?

  - by Leon

  Hi there, I am looking for a regex pattern to find all the content b/w curly brackets. For example, there is a string. $string = {xxx yyy zzz} I want to find a regex pattern so that it can extract the "xxx yyy zzz" out but no {}. Thank you very much for your help.

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• Hosting Mecurial HG via VisualSVN Server

  - by dvkwong

  I have tried to host a Mercurial HG repository using a Scriptalias. ScriptAlias /hg/ "htdocs/hgwebdir.cgi" If I go to Chrome it display the contents of the cgi file. In IE it does render however images and links are not displayed. In either case the repository I want to display is not shown. Has anyone managed to get this working with VisualSVN? Also will this work if I have windows authentication and https? Thanks David

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• Lazy Evaluation in Bash

  - by User1

  Is there more elegant way of doing lazy evaluation than the following: pattern='$x and $y' x=1 y=2 eval "echo $pattern" results: 1 and 2 It works but eval "echo ..." just feels sloppy and may be insecure in some way. Is there a better way to do this in Bash?

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• Java Regex Matcher Question

  - by Yang

  How do I match an URL string like this: img src = "http://stackoverflow.com/a/b/c/d/someimage.jpg" where only the domain name and the file extension (jpg) is fixed while others are variables? The following code does not seem working: Pattern p = Pattern.compile("<img src=\"http://stachoverflow.com/.*jpg"); // Create a matcher with an input string Matcher m = p.matcher(url); while (m.find()) { String s = m.toString(); }

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• NHibernate, transactions and TransactionScope

  - by Erik

  I'm trying to find the best solution to handle transaction in a web application that uses NHibernate. We use a IHttpModule and at HttpApplication.BeginRequest we open a new session and we bind it to the HttpContext with ManagedWebSessionContext.Bind(context, session); We close and unbind the session on HttpApplication.EndRequest. In our Repository base class, we always wrapped a transaction around our SaveOrUpdate, Delete, Get methods like, according to best practice: public virtual void Save(T entity) { var session = DependencyManager.Resolve<ISession>(); using (var transaction = session.BeginTransaction()) { session.SaveOrUpdate(entity); transaction.Commit(); } } But then this doesn't work, if you need to put a transaction somewhere in e.g. a Application service to include several repository calls to Save, Delete, etc.. So what we tried is to use TransactionScope (I didn't want to write my own transactionmanager). To test that this worked, I use an outer TransactionScope that doesn't call .Complete() to force a rollback: Repository Save(): public virtual void Save(T entity) { using (TransactionScope scope = new TransactionScope()) { var session = Depe.ndencyManager.Resolve<ISession>(); session.SaveOrUpdate(entity); scope.Complete(); } } The block that uses the repository: TestEntity testEntity = new TestEntity { Text = "Test1" }; ITestRepository testRepository = DependencyManager.Resolve<ITestRepository>(); testRepository.Save(testEntity); using (var scope = new TransactionScope()) { TestEntity entityToChange = testRepository.GetById(testEntity.Id); entityToChange.Text = "TestChanged"; testRepository.Save(entityToChange); } TestEntity entityChanged = testRepository.GetById(testEntity.Id); Assert.That(entityChanged.Text, Is.EqualTo("Test1")); This doesn't work. But to me if NHibernate supports TransactionScope it would! What happens is that there is no ROLLBACK at all in the database but when the testRepository.GetById(testEntity.Id); statement is executed a UPDATE with SET Text = "TestCahgned" is fired instead (It should have been fired between BEGIN TRAN and ROLLBACK TRAN). NHibernate reads the value from the level1 cache and fires a UPDATE to the database. Not expected behaviour!? From what I understand whenever a rollback is done in the scope of NHibernate you also need to close and unbind the current session. My question is: Does anyone know of a good way to do this using TransactionScope and ManagedWebSessionContext?

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• Mercurial over ssh client and server on Windows

  - by Ben Von Handorf

  I'm trying to configure Mercurial for use with both a windows server (freeSSHd) and client (both command line and TortoiseHG). I'm using the most recent versions of everything... all downloaded in the past few days. Using public key auth, I have been able to get connected to the server and I'm able to use plink to execute "hg version" and get a response, but when I try to clone a repository from the ssh server the command appears to hang. Running with -v yields: hg -v clone ssh://<username>@<server>//hg/repositoryA testRepositoryA running "plink.exe -i "<path to private key file>" <username>@<server> "hg -R /hg/repositoryA serve --stdio"" with nothing more forthcoming. Running the hg serve command directly on the server yields an apparently responsive Mercurial server, but the clients do not seem to make any further requests. Running "hg serve" in the repository directory and cloning over http works perfectly. What should I be looking for to help debug this? Is there something the clients (hg and TortoiseHG) aren't sending to continue the request stream? Additional Information: If I change to an invalid repository on the target machine, the appropriate error is displayed, so it does appear that the remote hg is running and correctly evaluating the path. Running with --debug and --traceback results in: sending hello command sending between command It hangs here, until I CTRL-C Traceback (most recent call last): File "mercurial\dispatch.pyo", line 46, in _runcatch File "mercurial\dispatch.pyo", line 452, in _dispatch File "mercurial\dispatch.pyo", line 320, in runcommand File "mercurial\dispatch.pyo", line 504, in _runcommand File "mercurial\dispatch.pyo", line 457, in checkargs File "mercurial\dispatch.pyo", line 451, in <lambda> File "mercurial\util.pyo", line 402, in check File "mercurial\commands.pyo", line 636, in clone File "mercurial\hg.pyo", line 187, in clone File "mercurial\hg.pyo", line 63, in repository File "mercurial\sshrepo.pyo", line 51, in __init__ File "mercurial\sshrepo.pyo", line 73, in validate_repo KeyboardInterrupt interrupted! Responding to Ryan: There does not appear to be any CPU usage or increasing memory usage on the server. It appears to be waiting for the client to send a request or something similar. 11/19/2009 : More information: The problem is definitely in the freeSSHd/server side of the equation. Connecting to bitbucket over ssh with the same keyset works fine. Still working on this.

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• How to implement HMVC using Kohana's cascading file system

  - by Yarin

  Kohana 3.2 was designed to support the HMVC design pattern. The HMVC pattern consists of nested MVC-triads. Yet as far as I can tell, Kohana's cascading file system requires all Models and Controllers to be placed within a top 'classes' directory, and Views into a top 'views' directory. If Model/Controllers are thus separated from Views at the top level of the file system, then how are we supposed to implement nested MVC-triads?

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• i want to find values between { }

  - by girish

  I m working with regular expression( Regex ) but not finding the exact output.. i want to find the values between two curly braces { Value } = value i use the following pattern but not getting the exact output...it does not remove first "{" ... string pattern = "\{*\}"; if my value is - {girish} it returns me {girish instead of this i want girish as output...

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• Git for Websites / post-receive / Separation of Test and Production Sites

  - by Walt W

  Hi all, I'm using Git to manage my website's source code and deployment, and currently have the test and live sites running on the same box. Following this resource http://toroid.org/ams/git-website-howto originally, I came up with the following post-receive hook script to differentiate between pushes to my live site and pushes to my test site: while read ref do #echo "Ref updated:" #echo $ref -- would print something like example at top of file result=`echo $ref | gawk -F' ' '{ print $3 }'` if [ $result != "" ]; then echo "Branch found: " echo $result case $result in refs/heads/master ) git --work-tree=c:/temp/BLAH checkout -f master echo "Updated master" ;; refs/heads/testbranch ) git --work-tree=c:/temp/BLAH2 checkout -f testbranch echo "Updated testbranch" ;; * ) echo "No update known for $result" ;; esac fi done echo "Post-receive updates complete" However, I have doubts that this is actually safe :) I'm by no means a Git expert, but I am guessing that Git probably keeps track of the current checked-out branch head, and this approach probably has the potential to confuse it to no end. So a few questions: IS this safe? Would a better approach be to have my base repository be the test site repository (with corresponding working directory), and then have that repository push changes to a new live site repository, which has a corresponding working directory to the live site base? This would also allow me to move the production to a different server and keep the deployment chain intact. Is there something I'm missing? Is there a different, clean way to differentiate between test and production deployments when using Git for managing websites? As an additional note in light of Vi's answer, is there a good way to do this that would handle deletions without mucking with the file system much? Thank you, -Walt PS - The script I came up with for the multiple repos (and am using unless I hear better) is as follows: sitename=`basename \`pwd\`` while read ref do #echo "Ref updated:" #echo $ref -- would print something like example at top of file result=`echo $ref | gawk -F' ' '{ print $3 }'` if [ $result != "" ]; then echo "Branch found: " echo $result case $result in refs/heads/master ) git checkout -q -f master if [ $? -eq 0 ]; then echo "Test Site checked out properly" else echo "Failed to checkout test site!" fi ;; refs/heads/live-site ) git push -q ../Live/$sitename live-site:master if [ $? -eq 0 ]; then echo "Live Site received updates properly" else echo "Failed to push updates to Live Site" fi ;; * ) echo "No update known for $result" ;; esac fi done echo "Post-receive updates complete" And then the repo in ../Live/$sitename (these are "bare" repos with working trees added after init) has the basic post-receive: git checkout -f if [ $? -eq 0 ]; then echo "Live site `basename \`pwd\`` checked out successfully" else echo "Live site failed to checkout" fi

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• Configure (or mimic) svn:externals to include code from Github in a svn-hosted project

  - by Dylan Beattie

  We use Subversion locally, and we're working on a project that uses a fork of Fluent NHibernate, which is hosted on Github. I'd like it set up so that a single svn checkout will retrieve everything necessary to build the project, but maintain the ability to fetch HEAD updates from github. Is there any way I can pull code from the Git repository as though it was an svn:external dependency? Can I just check the .git folder into our Subversion repository and just run git fetch when I need to, then svn commit the results?

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• Organizing memcache keys

  - by Industrial

  Hi! Im trying to find a good way to handle memcache keys for storing, retrieving and updating data to/from the cache layer in a more civilized way. Found this pattern, which looks great, but how do I turn it into a functional part of a PHP application? The Identity Map pattern: http://martinfowler.com/eaaCatalog/identityMap.html Thanks!

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• Examples of IOC/DI over Singleton

  - by Amitd

  Hi, Just started learning/reading about DI and IOC frameworks. Also I read many articles on SO and internet that say that one should prefer DI/IOC over singleton. Can anyone give/link examples of exactly how DI/IOC eliminates/solves the various issues regarding the Singleton pattern? (hopefully code and explanation for better understanding) Also given a system has already implemented Singleton pattern, how to refactor/implement DI/IOC for the same? (any examples for the same?) (Language/Framework no bars..C# would be helpful) Thanks

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• SVN server host os

  - by volody

  Recently I was searching on how to secure svn repository, or otherwords how to enable ssl connection to svn repository for a windows server 2003. Does it make more sense to use Linux server instead?

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• Testing for undefined and null child objects in ActionsScript/Flex

  - by dbasch

  Hi Everyone, I use this pattern to test for undefined and null values in ActionScript/Flex : if(obj) { execute() } Unfortunately, a ReferenceError is always thrown when I use the pattern to test for child objects : if(obj.child) { execute() } ReferenceError: Error #1069: Property child not found on obj and there is no default value. Why does testing for child objects with if statements throw a ReferenceError? Thanks!

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• Wanted: a very simple java RegExp API

  - by itsadok

  I'm tired of writing Pattern p = Pattern.compile(... Matcher m = p.matcher(str); if (m.find()) { ... Over and over again in my code. I was going to write a helper class to make it neater, but I then I wondered: is there a library that tries to provide a simpler facade for Regular Expressions in Java? I'm thinking something in the style of commons-lang and Guava.

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• .NET RegEx for letters and spaces

  - by user70192

  I am trying to create a regular expression in C# that allows only alphanumeric characters and spaces. Currently, I am trying the following: string pattern = @"^\w+$"; Regex regex = new Regex(pattern); if (regex.IsMatch(value) == false) { // Display error } What am I doing wrong?

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• What makes Ometa special?

  - by Brian

  Ometa is "a new object-oriented language for pattern matching." I've encountered pattern matching in languages like Oz tools to parse grammars like Lexx/Yacc or Pyparsing before. Despite looking at example code, reading discussions, and talking to a friend, I still am not able to get a real understanding of what makes Ometa special (or at least, why some people think it is). Any explanation?

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• Git repo planning questions

  - by masonk

  At work, development uses perforce to handle code sharing. I won't say "revision control", because we aren't allowed to check in changes until they are ready for regression testing. In order to get my personal change sets under revision control, I've been given the go-ahead to build my own git and initialize the client view of the perforce depot as a git repo. There are some difficulties in doing this, however. The client view lives in a subfolder of ~, (~/p4), and I want to put ~ under revision control as well, with its own separate history. I can't figure out how to keep the history for ~ separate from ~/p4 without using a submodule. The problem with a submodule is that it looks like I have to go make a repository that will become the submodule and then git submodule add <repo> <path>. But there is nowhere to make the submodule's repository except in ~. There seems to be no safe place to create the initial client view of the depot with git p4 clone. (I'm working off of the assumption that initing or cloning a repo into a subdirectory of a git repo is not supported. At least, I can find nothing authoritative on nested git repos.) edit: Is merely ignoring ~/p4 in the repo rooted at ~ enough to allow me to init a nested repo in ~/p4? My __git_ps1 function still thinks I'm in a git repository when I visit an ignored subdirectory of a git repo, so I'm inclined to think not. I need the "remote" repository created by git p4 sync to be a branch in ~/p4. We are required to keep all of our code in ~/p4 so that it doesn't get backed up. Can I pull from a "remote" branch that is really a local branch? This one is just for convenience, but I thought I could learn something by asking it. For 99% of the project, I just want to start the with the p4 head revision as the inital commit object. For the other 1%, I would like to suck down the entire p4 history so that I can browse it in git. IOW, after I'm done initalizing it, the initial commit of remotes/p4/master branch will contain: revision 1 of //depot/prod/Foo/Bar/* revision X of other files in //depot/prod/*, where X is the head revision and the remotes/p4/master branch contains Y commits, where Y is the number of changelists that had a file in //depot/prod/Foo/Bar/*, with each commit in the history corresponding to one of those p4 changelists, and HEAD looking like p4's head.

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• DCI - Data, Context and Interaction (Successor to MVC?)

  - by Seb Nilsson

  What is the best description of Data, Context and Interaction (DCI) to pitch it to an organization? There is no Wikipedia-article up on the subject yet. It's created by Trygve Reenskaug, the creator of the MVC-pattern. Is it really the successor to MVC or just another pattern? And what are its pros and cons?

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• Continous integration with Reporting Services

  - by SDReyes

  I'm implementing a continuous integration environment with SVN and reporting services. The reports are stored in the SVN repository. when a change occurs, they are automatically downloaded from the repository, and any file changed should be uploaded to the reporting services server. How could you automate the upload/update process for .rdl files?

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• use python glob to find a folder that is a 14 digit number

  - by mikec

  I have a folder with subfolders that are all in the pattern YYYYMMDDHHMMSS (timestamp). I want to use glob to only select the folders that match that pattern.

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• Git Transport Error during push operation?

  - by CitadelCSAlum

  I am using Git Version Control witht he JGit Plugin for the eclipse IDE. when I changed the location of my repo, and when to push to the new repository. I am receiving the following error message. Cant connect to any repository: git+ssh/username@remoteIPAddressgoeshere/srv/wma/git Transport error occured during push operation: Java.IOException: Channel is Broken)

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• jquery Infinite Scroll page number

  - by Renan Vieira

  I'm using a jQuery plugin called InfiniteScroll (https://github.com/paulirish/infinite-scroll) and I have a URL with this pattern: '/category/2/', when I paged the result I use the following pattern: "/category/2?page=2". When Infinite Scroll makes de request, he increments the wrong number, in the case above, the request is: "/category/3?page=2" in place of "/category/2?page=3". Anyone knows how workaround this?

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• Git - git add in a gitignore directory

  - by Steve

  If my .gitignore file has tmp\ in it and I do a git add file.test from tmp, Git adds file.test to the repository. If file.test never changes, than this is as good as a one time add to the repository, right? Say for static files that I want to be in version control. You want the file in an initial clone and that's it. I assume file.test doesn't get tracked, so if there are updates, Git doesn't see it as modified?

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• Spring.NET and ADO.NET Entity Data Model

  - by Jason

  Having defined an ADO.NET Entity Data Model, I can then instantiate it in a Repository class to query against the database. using (ApplicationEntities ctx = new ApplicationEntities()) { // query, CRUD, etc } However, that particular line of code becomes boilerplate in most of the methods in the repository class. Is it possible to just use Spring.NET to inject the Entity Data Model, either in the class or, even better, in an abstract parent class that all the repositories inherit from?

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