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• finding an adjacent node in xml through xpath

  - by kolosy

  i have a deeply nested structure (actually parsing out xhtml, so lots of nasty), like so: <tr> <td> <font id="blah"> stuff </font> </td> </tr> <tr> <td> more stuff </td> </tr> and this repeats in a long table. i need an xpath expression that will select the second font tag (or rather it's text()). i was looking at the preceding-sibling axis, but something isn't quite working right. something along the lines of (and pardon me if this is ridiculous, my xpath is rusty) //tr[preceding-sibling::tr/td/font/b]/td/text()

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• Convert inline image tags like [image:123:title:size] into HTML img tags

  - by Jacques Joubert

  I am looking for help with regular expression $pattern to convert inline image tags like [image:123:title:size] into HTML img tags. here is the code: //[image:ID:caption:size] $content = '[image:38:title:800x900]'; preg_match_all( '/\[image:(\d+)(:?)([^\]]*)\]/i', $content, $images ); if( !empty( $images[0] ) ) { // There are image inline tags in the content foreach( $images[0] as $i => $tag ) { $link_ID = (int)$images[1][$i]; $caption = empty( $images[2][$i] ) ? '#' : $images[3][$i]; $size = empty( $images[4][$i] ) ? '#' : $images[4][$i]; } echo '<br />'; echo 'ID: '.$link_ID.'<br />'; echo 'Tag: '.$caption.'<br />'; echo 'size: '.$size.'<br />'; } which outputs: ID: 12 Tag: caption:size size: # Any help would be great!

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• Are there .NET Framework methods to parse an email (MIME)?

  - by Neil C. Obremski

  Is there a class or set of functions built into the .NET Framework (3.5+) to parse raw emails (MIME documents)? I am not looking for anything fancy or a separate library, it needs to be built-in. I'm going to be using this in some unit tests and need only grab the main headers of interest (To, From, Subject) along with the body (which in this case will always be text and therefore no MIME trees or boundaries). I've written several MIME parsers in the past and if there isn't anything readily available, I'll just put together something from regular expressions. It would be great to be able to do something like: MailMessage msg = MailMessage.Parse(text); Thoughts?

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• parse youtube video id using preg_match

  - by Webbo

  Hi, I am attempting to parse the video ID of a youtube URL using preg_match. I found a regular expression on this site that appears to work; (?<=v=)[a-zA-Z0-9-]+(?=&)|(?<=[0-9]/)[^&\n]+|(?<=v=)[^&\n]+ As shown in this pic; http://i.imgur.com/SQJW2.jpg My PHP is as follows, but it doesn't work (gives Unknown modifier '[' error)... <? $subject = "http://www.youtube.com/watch?v=z_AbfPXTKms&NR=1"; preg_match("(?<=v=)[a-zA-Z0-9-]+(?=&)|(?<=[0-9]/)[^&\n]+|(?<=v=)[^&\n]+", $subject, $matches); print "<pre>"; print_r($matches); print "</pre>"; ?> Cheers

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• C++ cast syntax styles

  - by palm3D

  A question related to Regular cast vs. static_cast vs. dynamic_cast: What cast syntax style do you prefer in C++? C-style cast syntax: (int)foo C++-style cast syntax: static_cast<int>(foo) constructor syntax: int(foo) They may not translate to exactly the same instructions (do they?) but their effect should be the same (right?). If you're just casting between the built-in numeric types, I find C++-style cast syntax too verbose. As a former Java coder I tend to use C-style cast syntax instead, but my local C++ guru insists on using constructor syntax. What do you think?

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• Handling user security scope with nHibernate or other ORM

  - by Schotime

  How should one handle the situation where you may need to filter by a group of users. Here is the scenario. I have an administrator role in my company. I should be able to see all the data belonging to me plus all the other users who I have control over. A plain old user however should only be able to access their own data. If you are writing regular sql statements then you can have a security table with every user and who they have access too but i'm not sure how to handle this situation in the OO and ORM world. Any one dealt with this scenario in a web application using an ORM? Would love to hear your thoughts!

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• How to add debug assemblies to my Silverlight 2 application?

  - by Steve Wortham

  So I know now that the debug assemblies have been intentionally left out of the Silverlight runtime to save space. For that reason I get good detailed error messages on my local machine that has the Silverlight SDK on it, but I don't on a computer with the runtime only. I get the ubiquitous, "Debugging resource strings are unavailable." Unfortunately my requirements are a bit unique. I need to include the debug assembly (not sure which one yet) that will give me details of a regular expression error. And so essentially I want to include the dll in the xap if I can. The problem is that I can't seem to do this. I've tried adding the debug dll's as references and setting them to "copy local." And I've tried adding them into the project as content. But in fact, with either method the xap hardly grows in size and the error message doesn't change. Any ideas?

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• More HtAccess Rewrite Rules

  - by pws5068

  Greetings all, I need help combining some htaccess rewrites, these crazy regular expressions screw with my head. So I have a folder structure something like this: /www/mysite.com/page/member/friends.php /www/mysite.com/page/video/videos.php /www/mysite.com/page/messages/inbox.php The URLs get rewritten to this: mysite.com/member/friends.php mysite.com/video/videos.php mysite.com/messages/inbox.php (Notice the /page/ folder is hidden in the url, but I keep it on the server for better file organization) The rewrite rules look something like this: (I'm new so correct me if they are flawed) RewriteRule ^video/(.*)$ /page/video/$1 [NC] RewriteRule ^member/(.*)$ /page/member/$1 [NC] RewriteRule ^messages/(.*)$ /page/messages/$1 [NC] Now, I also need to do a completely different rewrite to a file called lobby.php inside of the member folder: After the original rewrites, a sample url looks like: mysite.com/member/lobby.php?member=pws5068 I need a new rewrite to make it look like this: mysite.com/pws5068 Thank you for bearing with my super-long question here. How can I make this happen?

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• TFS: Managing assembly version number?

  - by TomTom

  Hello, any good approach for managing assembly version numbers in TFS, possibly together with using the same number for the build number? I would be most interested in an approach that: Maintains the first three elements of the version Counts the rest upward for every "official" build (i.e. a build originating from certain templates only - no need to count up for something like a gated checkin, but the following regular integration build SHOULD count up. Labels the builds, so that a manual "release" build can be triggered. Any solution? How are other people handling this? Right now the (new) TFS is happily building with the same assembly version all around ;) Something coding the complete assembly version with date etc. is not acceptable - I want that number to "follow rules", and having the date in there is not one of them ;)

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• How to extract data from a text file

  - by šljaker

  I need to parse some large text file and extract Display name and area code only if it matches the following pattern: Line starts with display name (any number of words) Followed by 6 digits (can contain spaces) Followed by #text tag e.g. John doe 123 456 #text some text Display name: John doe Area code: 123 456 Test 123456 #text Display name: Test Area code: 123456 Test 123 #test Invalid, area code contains only 3 digits Test 123456 #test1 Invalid, contains invalid tag Test 123g45 #test Invalid, area code contains letters etc. I know how to open the text file and read it line by line, but having trouble with writing the regular expression. Any help would be greatly appreciated! edit: I have tried this: private static void Main(string[] args) { string text = "John Doe 123 45 #text Lorem ipsum dolor :)"; string pattern = @"(\w+)*([0-9]{2,5}).([0-9]{2,5}).#text"; Match match = Regex.Match(text, pattern, RegexOptions.IgnoreCase); if (match.Success) { string key = match.Groups[0].Value; Console.WriteLine(key); } }

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• How can I make my tableview enter editing mode?

  - by Jake

  Hi, for some reason I can't get my tableview to enter editing mode. It's a little harder than it might seem because I'm using some open source code to make a calendar (iCal esque) with a tableview under it, and it's not quite as straightforward as just using a regular tableview. Basically, I have two classes. One (let's say Class A) is a UIViewController and the other (Class B) is that viewController's datasource and tableview delegate. In Class B, I've implemented -(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath; which works fine, but if I put an edit nav bar item in Class A (the view controller), nothing happens. Am I forgetting certain protocols, or certain special methods that I need to write? Thanks for any help, and apologies if I'm missing something, I'm just learning to work with other people's code.

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• How can I search for an email using the zend framework?

  - by Ali

  Hi guys I need to build a functionality that involves searching through emails in an inbox for emails whose subjects match a certain user inputted keyword. SInce I'm using the zend framework I would like a solution that uses the zend framework libraries. Aside this I have noticed that the zend libraries are a bit limited with respect to my requirements for email handling. Is there any open library available in php which can be used for handling emails - when I mean handling emails I mean like: Ease to mark and flag emails Moving of emails from folder to folder. Parsing emails searching through emails SOrting emails etc - the stuff you would require if you wished to build a web client. EDIT ========= I'm looking for a generic solution here. The emails are in a regular email inbox on an IMAP server. I need a way to be able to read through and search for emails in the inbox using any specialized library to make it easier.

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• problems with url and email regex when searching text

  - by Grant Collins

  Hi, I'm having problems with regular expressions that I got from regexlib. I am trying to do a preg_replace() on a some text and want to replace/remove email addresses and URLs (http/https/ftp). The code that I am have is: $sanitiseRegex = array( 'email' => /'^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$/', 'http' => '/^(http|https|ftp)\://[a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,3}(:[a-zA-Z0-9]*)?/?([a-zA-Z0-9\-\._\?\,\'/\\\+&amp;%\$#\=~])*$/', ); $replace = array( 'xxxxx', 'xxxxx' ); $sanitisedText = preg_replace($sanitiseRegex, $replace, $text); However I am getting the following error: Unknown modifier '/' and $sanitisedText is null. Can anyone see the problem with what I am doing or why the regex is failing? Thanks

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• Anyone have a good solution for scraping the HTML source of a page with content (in this case, HTML

  - by phpwns

  Anyone have a good solution for scraping the HTML source of a page with content (in this case, HTML tables) generated with Javascript? An embarrassingly simple, though workable solution using Crowbar: <?php function get_html($url) // $url must be urlencode(d) { $context = stream_context_create(array( 'http' => array('timeout' => 120) // HTTP timeout in seconds )); $html = substr(file_get_contents('http://127.0.0.1:10000/?url=' . $url . '&delay=3000&view=browser', 0, $context), 730, -32); // substr removes HTML from the Crowbar web service, returning only the $url HTML return $html; } ?> The advantage to using Crowbar is that the tables will be rendered (and accessible) thanks to the headless mozilla-based browser. The problem, of course, is being dependent on on an external web service, especially given that SIMILE seems to undergo regular server maintenance. :( A pure php solution would be nice, but any functional (and reliable) alternatives would be great.

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• C# regex: negative lookahead fails with the single line option

  - by Sylverdrag

  I am trying to figure out why a regex with negative look ahead fails when the "single line" option is turned on. Example (simplified): <source>Test 1</source> <source>Test 2</source> <target>Result 2</target> <source>Test 3</source> This: <source>(?!.*<source>)(.*?)</source>(?!\s*<target) will fail if the single line option is on, and will work if the single line option is off. For instance, this works (disables the single line option): (?-s:<source>(?!.*<source>)(.*?)</source>(?!\s*<target)) My understanding is that the single line mode simply allows the dot "." to match new lines, and I don't see why it would affect the expression above. Can anyone explain what I am missing here?

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• How to Create a Queue

  - by regex

  Hello All, I have an application built that hits a third party company's web service in order to create an email account after a customer clicks a button. However, sometimes the web service takes longer than 1 minute to respond, which is way to long for my customers to be sitting there waiting for a response. I need to devise a way to set up some sort of queuing service external from the web site. This way I can add the web service action to the queue and advise the customer it may take up to 2 minutes to create the account. I'm curious of the best way to achieve this. My initial thought is to request the actions via a database table which will be checked on a regular basis by a Console app which is run via Windows Scheduled tasks. Any issues with that method? Is there a better method you can think of?

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• MVC - Same URL, multiple views

  - by Amati

  Hi, Is it considered bad practice to have multiple views for same URL in MVC, based on different user roles? For example: http://www.domain.com/ViewProductID/123 will show a "normal" product page for a regular user and it will show an "enhanced" (product stats, ability to edit title etc..) version to someone logged in as admin. If it's bad practice, why? If it's ok, what's the best way to implement it? 2 separate templates or 1 template scattered with if..else? Thanks!

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• C# Entity Framework Base Repository

  - by Andy

  I'm trying to create a base repository for use with Entity Framework 4.0 and having some trouble. In this code below, why is it not possible to do this in one line? public IEnumerable<T> GetAll<T>(Expression<Func<T, bool>> filter) { IEnumerable<T> allCustomers = this.GetAll<T>(); IEnumerable<T> result = allCustomers.Where(filter.Compile()); return result; } Won't this result in 2 SQL statements: one without a where clause that retrieves all rows, and one with a where clause that only retrieves the rows that match the predicate? How can this be done with a single SQL statement? I can't get it to compile if I try to cast the filter.Compile() to Func<Customer, bool>. Thanks, Andy

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• I cannot get this Jquery Image ComboBox to Work

  - by WillingLearner

  Im trying to use this plugin: http://www.marghoobsuleman.com/jquery-image-dropdown I cannot get it to work in my file. I copied and pasted the code from the example files and made the necessary links to the js and css files just to test, and i still cant get it to work. Everytime i run it, i get this error: Error: Result of expression '$(".mydds").msDropDown' [undefined] is not a function The script im using to run the file is: <script language="javascript" type="text/javascript"> function showvalue(arg) { alert(arg); //arg.visible(false); } $(document).ready(function() { try { oHandler = $(".mydds").msDropDown().data("dd"); oHandler.visible(true); //alert($.msDropDown.version); //$.msDropDown.create("body select"); $("#ver").html($.msDropDown.version); } catch(e) { alert("Error: "+e.message); } }) </script> Why am I getting these errors and how can I fix it?

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• Split string into smaller part with constrain [PHP RegEx HTML]

  - by Sadi

  Hello, I need to split long string into a array with following constrains: Each part will have a limited number of character (e.g. not more than 8000 character) Each part can contain multiple sentences (delimited by . [full stop]) but never a partial sentences. Except if the last part of the string (as last part may not have any full stop. The string may contain HTML tags. But the tag can not be divided as ( to ). That means HTML tag should be intact. But starting tag and ending tag can be stay on different segment/chunk. I think regular expression with preg_split can do it. Would please help me with the proper RegEx. Thank you Sadi

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• Boolean Not operator in VBScript

  - by Lumi

  Consider the following two conditionals (involving bitwise comparisons) in VBScript: If 1 And 3 Then WScript.Echo "yes" Else WScript.Echo "no" If Not(1 And 3) Then WScript.Echo "yes" Else WScript.Echo "no" Prints first yes, then no, right? cscript not.vbs Wrong! It prints yes twice! Wait a second, the Not operator is supposed to perform logical negation on an expression. The logical negation of true is false, as far as I know. Must I conclude that it doesn't live up to that promise? How and why and what is going on here? What is the rationale, if any?

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• Wrong SQLServer syntax: need help!

  - by user512602

  Hi, this is what I want to achieve: 4 tables are involved: Players with PlayerID as PK, Competitions with CompetID as PK Results with ResultID as PK and CompetID as FK And the 4th table: PlayerResultts with ResultID + PlayerID as PK and CompetID as new column I created. Competitions, results and PlayerResults are already populated and quite large (300000 PlayerResults so far). In order to populate the PlayerResults.CompetID column, I try a Update ... (Select....) request but I'm not aware of the right syntax and it fails. Here is my feeble attempt: update PlayerResults set competid = (select distinct(r.competid) from results r, playerresults p where r.resultID = p.resultid) Error is (of course): "Msg 512, Level 16, State 1, Line 1 Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , , = or when the subquery is used as an expression." Can someone put me in the right direction? TIA

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• How to make the arrows keys act as another keys ?

  - by le.shep20

  How to make the left arrow act like . (dot), when a user press the left arrow in a textbox it will type . and also in the same way how to make the right arrow act like - ( dash) And I want to use the Control key to switch between 2 modes: . and dash, regular arrows behavior, mean when a user press Control the tow arrows will act as . and dash. And when a user press agian the control the 2 arrows will act as usual arrows.

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• How to binding to bit datatype in SQL to Booleans/CheckBoxes in ASP.NET MVC 2 with DataAnnotations

  - by nvtthang

  I've got problem with binding data type boolean to checkbox in MVC 2 data annotations Here's my code sample: label> Is Hot </label> <%=Html.CheckBoxFor(model => model.isHot, new {@class="input" })%> It always raise this error message below at (model=model.isHot). Cannot convert lambda expression to delegate type 'System.Func<Framework.Models.customer,bool>' because some of the return types in the block are not implicitly convertible to the delegate return type Cannot implicitly convert type 'bool?' to 'bool'. An explicit conversion exists (are you missing a cast?) Please suggest me how can I solve this problem? Thanks in advance.

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• Using "CASE" in Where clause to choose various column harm the performance

  - by zivgabo

  I have query which needs to be dynamic on some of the columns, meaning I get a parameter and according its value I decide which column to fetch in my Where clause. I've implemented this request using "CASE" expression: (CASE @isArrivalTime WHEN 1 THEN ArrivalTime ELSE PickedupTime END) >= DATEADD(mi, -@TZOffsetInMins, @sTime) AND (CASE @isArrivalTime WHEN 1 THEN ArrivalTime ELSE PickedupTime END) < DATEADD(mi, -@TZOffsetInMins, @fTime) If @isArrivalTime = 1 then chose ArrivalTime column else chose PickedupTime column. I have a clustered index on ArrivalTime and nonclustered index on PickedupTime. I've noticed that when I'm using this query (with @isArrivalTime = 1), my performance is a lot worse comparing to only using ArrivalTime. Maybe the query optimizer can't use\choose the index properly in this way? I compared the execution plans an noticed that when I'm using the CASE 32% of the time is being wasted on the index scan, but when I didn't use the CASE(just usedArrivalTime`) only 3% were wasted on this index scan. Anyone know the reason for this?

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