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• Grouping string by comma between brackets

  - by Myra

  Response to : http://stackoverflow.com/questions/1454913/regular-expression-to-find-a-string-included-between-two-characters-while-exclud Hi,I'm looking for a regex pattern that applies to my string including brackets: [1,2,3,4,5] [abc,ef,g] [0,2,4b,y7] could be anything including word,digit,non-word together or separated. I wish to get the group between brackets by \[(.*?)\] but what is the regex pattern that will give me the group between brackets and sub-group strings separated by commas so that the result may be following ?? Group1 : [1,2,3,4,5] Group1: 1 Group2: 2 Group3: 3 Group4: 4 Group5: 5 Group2 : [abc,ef,g] Group1: abc Group2: ef Group3: g etc .. Thank you for your help

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• Why does OSX document atoi/atof as not being threadsafe?

  - by Larry Gritz

  I understand that strtol and strtof are preferred to atoi/atof, since the former detect errors, and also strtol is much more flexible than atoi when it comes to non-base-10. But I'm still curious about something: 'man atoi' (or atof) on OS X (though not on Linux!) mentions that atoi/atof are not threadsafe. I frankly have a hard time imagining a possible implementation of atoi or atof that would not be threadsafe. Does anybody know why the man page says this? Are these functions actually unsafe on OS X or any other platform? And if they are, why on earth wouldn't the library just define atoi in terms of strtol, and therefore be safe?

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• How do I parse this invalid JSON string in jQuery?

  - by LesterDove

  Hi, I am looking to access the various bits of data in this data attribute: <div class="location" data="{id: 4, point: {lng: -71.413364, lat: 41.673681}, category: 'Restaurant'}"> The data attribute is easy enough to reach in jQuery, of course. But the string seems to be a non-standard or invalid form of JSON. I've tried JSON.parse() and also a basic JS method of splitting the array. By all accounts, it just seems to be an invalidly-serialized string. Will I need to reformat the data string? (it doesn't come from me, and it's used by other routines that I'd rather not break, so...)

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• Access the internal phonebook

  - by L0rdAli3n

  For more than two days now, I'm trying to grab a list of all contacts, from the internal phonebook (no facebook-, gmail- or twittercontacts) with their family- and givenname. I managed to get a list with all contacts, socialcontacts included. So I looked at the account_type and saw that on my HTC Desire they were all "com.htc.android.pcsc" and I was like "Great, I just have to filter the whole list". But then all people with non-htc android cellphones would be unable to use my app, if I would hardcode this filter. Next idea was to let the user choose which account he wants to use, but unfortunately the "com.htc.android.pcsc" didn't appear in the list I got from the AccountManager?!? So my question is: Is there any standardized way to access the internal phonebook? I'm really stuck with that and any hint is highly appreciated!

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• MySQL - Join as zero if record Not IN

  - by Zurahn

  To explain by example, take two tables, A and B Table A id foo 1 x 2 y 3 z Table B id aid bar 1 3 50 2 1 100 An example join SELECT foo, bar FROM a, b WHERE a.id = b.aid; Garners a result of foo bar z 50 x 100 What I would like to do is get all values of foo and for any instances where there isn't a corresponding bar value, return 0 for that column. My best guess was something along the lines of SELECT foo, bar AS br FROM a, b WHERE a.id = b.aid OR a.id NOT IN (SELECT aid FROM b); But that returns duplicates and non-zero values for bar. Possible?

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• The remote server returned an error: (407) Proxy Authentication Required

  - by chris

  I'm getting this error when I call a web service: "The remote server returned an error: (407) Proxy Authentication Required". I get the general idea and I can get the code to work by adding myProxy.Credentials= NetworkCredential("user", "password", "domain"); or by using DefaultCredentials in code. My problem is that the call to the web service works in production without this. It seems like there is a non code solution involving Machine.config, but what is it? At the moment I can't get to the production boxes machine.config file to see what that looks like. I tried updating my machine.config as follows, but I still get the 407 error.

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• Better to combine & minify javascript or use Google CDN?

  - by jessegavin

  I am building a site which currently uses javascript from several sources: Group 1: Google Maps API v3 (hosted by Google) Group 2: jQuery & swfobject (hosted on Google CDN) Group 3: Several jQuery plugins and non-jquery javascript files (hosted on my server) I am using Justin Etheredge's tool SquishIt to combine and minify all the javascript files that are hosted on my server (group 3). I am wondering if the site would 'feel' faster to users if I were to host the files in (group 2) locally so that they can be combined with all the other files in (group 3) and requiring only one HTTP request for groups 2 & 3. This would mean that I don't get the benefits of the Google CDN however. Does anyone have any advice on this matter?

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• Multiple Rails forks with separate designs and layouts

  - by mettadore

  I have a Rails project that is basically a simple web app for a membership-based organization. We've open sourced the code on Github for the web app so that others can use it, but have a licensed design/layout that the original organization is going to use. This layout cannot be open sourced. I was wondering if others have run into the situation where you have an open-source Rails app with a non-OS design. My initial thought is to put app/views in .gitignore, and to have anyone forking the code add their own views directory, perhaps including an app/views_default directory with a web-app-theme layout or something else to get people running. Is this the best option (realizing that there are other files such as JavaScript, CSS, etc that come with the layout that must also be ignored). Does anyone have some good thoughts or pointers on this?

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• Is the time cost constant when bulk inserting data into an indexed table?

  - by SiLent SoNG

  I have created an archive table which will store data for selecting only. Daily there will be a program to transfer a batch of records into the archive table. There are several columns which are indexed; while others are not. I am concerned with time cost per batch insertion: - 1st batch insertion: N1 - 2nd batch insertion: N2 - 3rd batch insertion: N3 The question is: will N1, N2, and N3 roughly be the same, or N3 N2 N1? That is, will the time cost be a constant or incremental, with existence of several indexes? All indexes are non-clustered. The archive table structure is this: create table document ( doc_id int unsigned primary key, owner_id int, -- indexed title smalltext, country char(2), year year(4), time datetime, key ix_owner(owner_id) }

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• String Encoding doesn't ouput all characters

  - by AndroidXTr3meN

  My client uses InputStreamReader/BufferedReader to fetch text from the Internet. However when I save the Text to a *.txt the text shows extra weird special symbols like 'Â'. I've tried Convert the String to ASCII but that mess upp å,ä,ö,Ø which I use. I've tried food = food.replace("Â", ""); and IndexOf(); But string won't find it. But it's there in HEX Editor. So summary: When I use text.setText(Android), the output looks fine with NO weird symbols, but when I save the text to *.txt I get about 4 of 'Â'. I do not want ASCII because I use other Non-ASCII character. The 'Â' is displayed as a Whitespace on my Android and in notepad. Thanks! Have A great Weekend! EDIT* found:   in Wordpad

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• DOM class injection in PHP

  - by Adam Kiss

  idea Via jQuery, I was able to mark all :first-child and :last-child elements in document (well, almost all :)) with class first which could I later style (i.e. first li in ul#navigation would be easily adressable as ul#navigation .first). I used following code: var $f = $('*:first-child') $f.addClass('first'); var $l = $('body *:last-child') $l.addClass('last'); question Now, my question is if it's possible to do the same via php, so non-JS users/gadgets could have the same effects and additional styling and also it would be less overkill on browser. So, is it possible to capture output, parse it as html and inject this class easily in php?

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• Check if key exists in $_SESSION by building index string

  - by Kim

  I need to check if a key exists and return its value if it does. Key can be an array with subkeys or endkey with a value. $_SESSION['mainKey']['testkey'] = 'value'; var_dump(doesKeyExist('testkey')); function doesKeyExist($where) { $parts = explode('/',$where); $str = ''; for($i = 0,$len = count($parts);$i<$len;$i++) { $str .= '[\''. $parts[$i] .'\']'; } $keycheck = '$_SESSION[\'mainKey\']' . $str; if (isset(${$keycheck})) { return ${$keycheck}; } // isset($keycheck) = true, as its non-empty. actual content is not checked // isset(${$keycheck}) = false, but should be true. ${$var} forces a evaluate content // isset($_SESSION['mainKey']['testkey']) = true } What am I doing wrong ? Using PHP 5.3.3.

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• CodeIgniter Active Record Queries W/ Sub Queries

  - by Mike

  Question: I really am trying to stick to using ActiveRecord and not using straight SQL.. can someone help me convert this to activerecord? Trying to get the email address and contact name from another table. map_userfields table is a one to many, multiple rows per p.id. one row per p.id per uf.fieldid. see this screenshot for a reference to the map_userfields table: Current Non active record query SELECT p.id, (SELECT uf.fieldvalue FROM map_userfields uf WHERE uf.pointid = p.id AND uf.fieldid = 20) As ContactName, (SELECT uf.fieldvalue FROM map_userfields uf WHERE uf.pointid = p.id AND uf.fieldid = 31) As ContactEmail FROM map_points p WHERE /** $pointCategory is an array of categories to look for **/ p.type IN($pointCategory) Note: I am using CodeIgniter 2.1.x, MySQL 5.x, php 5.3

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• asp.net mvc route clashing with physical path in IIS7

  - by Andrew Bullock

  I'm messing about with controller organisation and I've hit a problem. If I have the following physical structure /Home/HomeController.cs /Home/Index.aspx /Home/About.aspx and I request the URI: /Home/Index I get a 403 Directory Listing Denied :( (im using a custom IControllerFactory and IViewEngine to look in this non-default path) Why is this happening? (I know the 403 is because its hitting the /Home folder, but why is it hitting the folder?) Why doesn't the UrlRoutingModule rewrite the route and let the controller pick up the request? Application_BeginRequest fires, but then it seems to pass control back to IIS to try and serve from the filesystem. Is it the UrlRoutingModule that defaults to a physical path if it exists before rewriting? Is there a way to make this work? N.B. Please don't suggest relocating my controllers etc. I know this is an obvious option, but that isn't the question ;) Using IIS7 In Integrated Mode Thanks

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• Auto-fill the current date if the previous row was empty

  - by replax

  I have a spreadsheet sorted by dates. Everyday, I enter new data into it. After each day, I leave one row empty before starting the next day. Example: 20.09.12 XXXXX XXXXX XXXXX XXXX XXXXX XXXX XXXXX XX XX XXXXX XX XXXX 21.09.12 XXX XXXXX XXX XXXX X XXXX XXXX XXX 22.09.12 XXXX XX XXXX XXXX So I want excel to always fill in the current date whenever I enter data after one blank row, but obviously the dates shall stay the same - not be updated to the current date whenever I open excel. I am using Excel 2007 and while non vba ideas are preferred, vba is not a problem either!

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• Streaming multiple TObjects to a TMemoryStream

  - by Altar

  I need to store multiple objects (most of them are TObject/non persistent) to a TMemoryStream, save the stream to disk and load it back. The objects need to be streamed one after each other. Some kind of universal container. I started to make several functions that store stuff to stream - for example function StreamReadString(CONST MemStream: TMemoryStream): string; StreamWriteString(CONST MemStream: TMemoryStream; s: string); However, it seems that I need to rewrite a lot of code. One of the many examples is TStringList.LoadFromStream that will not work so it needs to be rewritten. This is because TStringList needs to be the last object in the stream (it reads from current position to the end of the stream). Anybody knows a library that provide basic functionality like this? I am using Delphi 7 so RTTI won't help too much.

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• What happens when a computer program runs?

  - by gaijinco

  I know the general theory but I can't fit in the details. I know that a program resides in the secondary memory of a computer. Once the program begins execution it is entirely copied to the RAM. Then the processor retrive a few instructions (it depends on the size of the bus) at a time, puts them in registers and executes them. I also know that a computer program uses two kinds of memory: stack and heap, which are also part of the primary memory of the computer. The stack is used for non-dynamic memory, and the heap for dynamic memory (for example, everything related to the new operator in C++) What I can't understand is how those two things connect. At what point is the stack used for the execution of the instructions? Instructions go from the RAM, to the stack, to the registers?

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• Is is possible to make a shaped, alpha-blended dialog?

  - by jgaa

  I'm making a non-rectangular dialog, modelled over an image from Photoshop (the image is the background of the dialog, and the user will see trough the transparent part of the image). I'ts like a dashboard-style window for a media-app with a few custom-drawn controls. Most of the background-image is either opaque or 100% transparent - but in between there is a thin area of partially transparent pixels, ment to blend the image smootly into the background. This works great for web-graphics, but I have not found a way to make this work for Windows windows. I'm using the Windows Template Library (WTL), msvc 2008 - and the app must run on Windows XP as well as Vista and Windows 7. Currently, I'm simply using the opaque part of the background-image to create a GDI clipping-region, but this gives pretty rough edges. Does anyone know about any API functions to accomplish this (part of WTL, or reachable from WTL)?

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• Diff multiple files in perforce across a revision range

  - by Thanatos

  I'd like to diff a bunch of lines across several revisions. Like, I'd like to see a.c, b.c, and c.c from changelist X to changelist Y. p4 diff2 a.c@X a.c@Y (where X & Y are changelist numbers) seems to work, but only sometimes. Specifically, if a.c is non-existent at X, I don't get a diff. I'd like to be able to get the diff (even though it'll be the whole file with only adds) anyways. To get the bigger picture: I have several files, across several commits, and I'd like to merge the diffs of these files in these commits, to basically say "this is a diff of what changed in this set of files during this set of changelists"

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• Edit and create nodes in a view?

  - by tputkonen

  We are storing people's class attendance information to Drupal. We would like to show this in a grid/chart, where the first column of each row shows person's name, and rest of the columns (ca. 20) either a checkbox or "X" if the user attended a class, or otherwise an non-checked box or empty column: (dates here) Jack X XXX X X Jill XX XXX XX It should also be possible to edit the attendance information on the grid. Each attendance information is a node of its own. This functionality can probably mostly be achieved using views and editablefields, but there is one problem: if a person has not attended a specific class he/she will not have at all an attendace node for that day. What would be the easiest way to create an attendace node in those cases, so that it would be possible for the end user to edit the grid by just clicking on the checkbox or typing an 'X'?

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• Unsigneds in order to prevent negative numbers

  - by Bruno Brant

  let's rope I can make this non-sujective Here's the thing: Sometimes, on fixed-typed languages, I restrict input on methods and functions to positive numbers by using the unsigned types, like unsigned int or unsigned double, etc. Most libraries, however, doesn't seem to think that way. Take C# string.Length. It's a integer, even though it can never be negative. Same goes for C/C++: sqrt input is an int or a double. I know there are reasons for this ... for example your argument might be read from a file and (no idea why) you may prefer to send the value directly to the function and check for errors latter (or use a try-catch block). So, I'm assuming that libraries are way better designed than my own code. So what are the reasons against using unsigned numbers to represent positive numbers? It's because of overflow when we cast then back to signed types?

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• How to access a XML file in a maven project so it stays available when packaged

  - by Manuel

  I currently started working on a maven web-app project that needs to be launched with the jetty:run-exploded goal for development/debugging in eclipse. Now, I have an XML file which contents I need to access at runtime. My problem is: where to put the file so that the code that does the reading works both in "exploded" and packaged (i.e. in the WAR) mode? Putting the file in src/main/java (so as to be in the classpath) won't cut it since maven filters out all non-java files on packaging. When the file is in src/main/resources, one mean would be to figure out the root path of the project (during eclipse development) and look into that directory - but this won't be the case anymore when the project will be packaged. Of course I could go into writing code that tries to read the file from both locations, but this seems rather cumbersome. Any suggestions?

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• What to do when you are a programmer and have a cold?

  - by Zak

  If you have a cold that isn't too bad, does it make sense to still go into the office and get some coding done? Assume a private office, no meetings for the day, and you have some documentation and coding tasks that need to get done. Also assume that you operate on a PTO system, where all days off are "vacation" or PTO. To clarify, should one just not code at all when under the weather? That's what I'm getting at. Will you just kick yourself in your own rear when you go back to deal with code you wrote when you are sick? What is the error defect rate of sick vs non-sick programming hours?

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• Detect if PCRE was built without the --enable-unicode-properties or --enable-utf8 configuration switches

  - by Mark Baker

  I've a PHP library that uses a number of regular expressions featuring the \P expressions for multibyte strings, e.g. ((((?:\P{M}\p{M}*)+?)|(\'[^\']*\')|(\"[^\"]*\"))!)?\$?([a-z]{1,3})\$?(\d+) While this works on most builds, I've had a few reports of the regexp returning an error. Depending on Operating platform, the error messages from PCRE are: Compilation failed: PCRE does not support \L, \l, \N, \P, \p, \U, \u, or \X at offset n or Compilation failed: support for \\P, \\p, and \\X has not been compiled at offset n I know that I can probably test a regexp at the beginning of my code that uses \P, and trap for a returned error, then use that response to set a compatibility flag and provide a degraded (non UTF-8) regexp without the \P within the main body of my code based on that compatibility flag; but I was wondering if there was any simpler way to identify whether PCRE had been built without the --enable-unicode-properties or --enable-utf8 configuration switches. PHP provides access to PCRE_VERSION constant, but that won't help identify whether \P support is enabled or not.

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• Is there a way to bring an application's GUI to the current desktop?

  - by Davy8

  Background: Started a fair amount of work before realizing that a Windows Service cannot start an app with a GUI that displays without potential problems. The proper solution of separating the GUI of the app to be started is non-trivial, so I'm trying to think of alternative solutions. There is a GUI to manage the service that is a separate executable, but the process to be launched (actually multiple instances of it) has its own GUI that needs to be shown. It doesn't need to be made visible by the service itself, but it needs to be at least able to be made visible by another process with a visible GUI. The Windows User that is running the service and that needs to see the GUI of the launched process is the same and known at install time. Is there some way to accomplish this or is it back to the drawing board? Also both the service and the app to launch are both our code and modifiable.

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