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• Grep failing with Emacs (windows), and GnuWin32 Grep

  - by Andy

  Hi, I've downloaded and installed the GnuWin32 tools, and added the grep executables to the Emacs bin. I've also, for what its worth, added the GnuWin32 bin folder to my Path variable. Problem is though, when I try and run with suggested grep commands, I always get: Grep exited abnormally with code 53 at Wed Feb 24 17:16:12 For the life of me, I can't find any reference to error code 53 anywhere! :( I've tried the exact examples on a number of websites for example, when I enter: M-x grep <ret> It comes up with Run grep (like this): grep -n Which is fine, but I have no idea of what parameters it expects. I've tried some in some tuorials, but I get error code 53 again! One of the things I've tried is straight from the emacs wiki (http://www.emacswiki.org/emacs/GrepMode#toc2) (maybe not for the windows version though?) and it says to try this command: M-x grep -n -e setq ~/.emacs Which I've tried and I get: -*- mode: grep; default-directory: "c:/[My Directory]/" -*- Grep started at Wed Feb 24 17:30:47 grep -n -e setq ~/.emacs NUL Grep exited abnormally with code 53 at Wed Feb 24 17:30:47 So frustrating as this is meant to be a powerful feature of Emacs and I'm really trying to learn it as I've heard good things about it! Any help would be appreciated! :) Andy UPDATE From the suggestion below, I've tried it via command line and it seems to work fine, perhaps there some config I'm UPDATE I've found the command M-x Occur which seems to do much the same as I would image grep does. Are there many extra benefits to using grep over occur if I can't get this working?

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• Conditional Regular Expression testing of a CSV

  - by Alastair Pitts

  I am doing some client side validation in ASP.NET MVC and I found myself trying to do conditional validation on a set of items (ie, if the checkbox is checked then validate and visa versa). This was problematic, to say the least. To get around this, I figured that I could "cheat" by having a hidden element that would contain all of the information for each set, thus the idea of a CSV string containing this information. I already use a custom [HiddenRequired] attribute to validate if the hidden input contains a value, with success, but I thought as I will need to validate each piece of data in the csv, that a regular expression would solve this. My regular expression work is extremely weak and after a good 2 hours I've almost given up. This is an example of the csv string: true,3,24,over,0.5 to explain: true denotes if I should validate the rest. I need to conditionally switch in the regex using this 3 and 24 are integers and will only ever fall in the range 0-24. over is a string and will either be over or under 0.5 is a decimal value, of unknown precision. In the validation, all values should be present and at least of the correct type Is there someone who can either provide such a regex or at least provide some hints, i'm really stuck!

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• How to read Unicode characters from command-line arguments in Python on Windows

  - by Craig McQueen

  I want my Python script to be able to read Unicode command line arguments in Windows. But it appears that sys.argv is a string encoded in some local encoding, rather than Unicode. How can I read the command line in full Unicode? Example code: argv.py import sys first_arg = sys.argv[1] print first_arg print type(first_arg) print first_arg.encode("hex") print open(first_arg) On my PC set up for Japanese code page, I get: C:\temp>argv.py "PC·??????08.09.24.doc" PC·??????08.09.24.doc <type 'str'> 50438145835c83748367905c90bf8f9130382e30392e32342e646f63 <open file 'PC·??????08.09.24.doc', mode 'r' at 0x00917D90> That's Shift-JIS encoded I believe, and it "works" for that filename. But it breaks for filenames with characters that aren't in the Shift-JIS character set—the final "open" call fails: C:\temp>argv.py Jörgen.txt Jorgen.txt <type 'str'> 4a6f7267656e2e747874 Traceback (most recent call last): File "C:\temp\argv.py", line 7, in <module> print open(first_arg) IOError: [Errno 2] No such file or directory: 'Jorgen.txt' Note—I'm talking about Python 2.x, not Python 3.0. I've found that Python 3.0 gives sys.argv as proper Unicode. But it's a bit early yet to transition to Python 3.0 (due to lack of 3rd party library support). Update: A few answers have said I should decode according to whatever the sys.argv is encoded in. The problem with that is that it's not full Unicode, so some characters are not representable. Here's the use case that gives me grief: I have enabled drag-and-drop of files onto .py files in Windows Explorer. I have file names with all sorts of characters, including some not in the system default code page. My Python script doesn't get the right Unicode filenames passed to it via sys.argv in all cases, when the characters aren't representable in the current code page encoding. There is certainly some Windows API to read the command line with full Unicode (and Python 3.0 does it). I assume the Python 2.x interpreter is not using it.

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• XML String into a DataGridView (C#)

  - by Justin Daniels

  I am currently working with a webservice to pull a report about users in a remote support system. After pulling my report and receiving the result, I am given the following string back by the method: <report><header><field id="0">Source</field><field id="1">Session ID</field><field id="2">Date</field><field id="3">Name</field><field id="24">Technician Name</field><field id="25">Technician ID</field></header><data><row><field id="0">Email</field><field id="1">55037806</field><field id="2">4/13/2010 2:28:06 AM</field><field id="3">Bill Gates</field><field id="24">John</field><field id="25">1821852</field></row><row><field id="0">Telephone</field><field id="1">55034548</field><field id="2">4/13/2010 12:59:44 AM</field><field id="3">Steve Jobs</field><field id="24">John</field><field id="25">1821852</field></row></data></report> After receiving this string, I need to take it and display the actual data in a datagridview. I've tried putting it into an XMLDocument then reading that, but it seems to keep failing. Just interested in another set of eyes :) Application is written in C# in VS2010.

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• Range-based `for` statement definition redundancy

  - by GMan - Save the Unicorns

  Looking at n3092, in §6.5.4 we find the equivalency for a range-based for loop. It then goes on to say what __begin and __end are equal to. It differentiates between arrays and other types, and I find this redundant (aka, confusing). It says for arrays types that __begin and __end are what you expect: a pointer to the first and a pointer to one-past the end. Then for other types, __begin and __end are equal to begin(__range) and end(__range), with ADL. Namespace std is associated, in order to find the std::begin and std::end defined in <iterator>, §24.6.5. However, if we look at the definition of std::begin and std::end, they are both defined for arrays as well as container types. And the array versions do exactly the same as above: pointer to the first, pointer to one-past the end. Why is there a need to differentiate arrays from other types, when the definition given for other types would work just as well, finding std::begin and std::end? Some abridged quotes for convenience: §24.6.5 The range-based for statement — if _RangeT is an array type, begin-expr and end-expr are __range and __range + __bound, respectively, where __bound is the array bound. If _RangeT is an array of unknown size or an array of incomplete type, the program is ill-formed. — otherwise, begin-expr and end-expr are begin(_range) and end(_range), respectively, where begin and end are looked up with argument-dependent lookup (3.4.2). For the purposes of this name lookup, namespace std is an associated namespace. and §24.6.5 range access template T* begin(T (&array)[N]); Returns: array. template T* end(T (&array)[N]); Returns: array + N.

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• Date difference in Javascript (ignoring time of day)

  - by Alan

  I'm writing an equipment rental application where clients are charged a fee for renting equipment based on the duration (in days) of the rental. So, basically, (daily fee * number of days) = total charge. For instant feedback on the client side, I'm trying to use Javascript to figure out the difference in two calendar dates. I've searched around, but nothing I've found is quite what I'm looking for. Most solutions I've seen are of the form: function dateDiff1(startDate, endDate) { return ((endDate.getTime() - startDate.getTime()) / 1000*60*60*24); } My problem is that equipment can be checked out and returned at any time of day during those two dates with no additional charge. The above code is calculating the number of 24 hour periods between the two dates, when I'm really interested in the number of calendar days. For example, if someone checked out equipment at 6am on July 6th and returned it at 10pm on July 7th, the above code would calculate that more than one 24 hour period had passed, and would return 2. The desired result is 1, since only one calendar date has elapsed (i.e. the 6th to the 7th). The closest solution I've found is this function: function dateDiff2(startDate, endDate) { return endDate.getDate() - startDate.getDate(); } which does exactly what I want, as long as the two dates are within the same month. However, since getDate() only returns the day of month (i.e. 1-31), it doesn't work when the dates span multiple months (e.g. July 31 to August 1 is 1 day, but the above calcuates 1 - 31, or -29). On the backend, in PHP, I'm using gregoriantojd(), which seems to work just fine (see this post for an example). I just can't find an equivalent solution in Javascript. Anyone have any ideas?

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• How to call Postgres function returning SETOF record?

  - by Peter

  I have written the following function: -- Gets stats for all markets CREATE OR REPLACE FUNCTION GetMarketStats ( ) RETURNS SETOF record AS $$ BEGIN SELECT 'R approved offer' AS Metric, SUM(CASE WHEN M.MarketName = 'A+' AND M.Term = 24 THEN LO.Amount ELSE 0 end) AS MarketAPlus24, SUM(CASE WHEN M.MarketName = 'A+' AND M.Term = 36 THEN LO.Amount ELSE 0 end) AS MarketAPlus36, SUM(CASE WHEN M.MarketName = 'A' AND M.Term = 24 THEN LO.Amount ELSE 0 end) AS MarketA24, SUM(CASE WHEN M.MarketName = 'A' AND M.Term = 36 THEN LO.Amount ELSE 0 end) AS MarketA36, SUM(CASE WHEN M.MarketName = 'B' AND M.Term = 24 THEN LO.Amount ELSE 0 end) AS MarketB24, SUM(CASE WHEN M.MarketName = 'B' AND M.Term = 36 THEN LO.Amount ELSE 0 end) AS MarketB36 FROM "Market" M INNER JOIN "Listing" L ON L.MarketID = M.MarketID INNER JOIN "ListingOffer" LO ON L.ListingID = LO.ListingID; END $$ LANGUAGE plpgsql; And when trying to call it like this... select * from GetMarketStats() AS (Metric VARCHAR(50),MarketAPlus24 INT,MarketAPlus36 INT,MarketA24 INT,MarketA36 INT,MarketB24 INT,MarketB36 INT); I get an error: ERROR: query has no destination for result data HINT: If you want to discard the results of a SELECT, use PERFORM instead. CONTEXT: PL/pgSQL function "getmarketstats" line 2 at SQL statement I don't understand this output. I've tried using perform too, but I thought one only had to use that if the function doesn't return anything.

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• Displaying timecode using NSTimer and NSDateFormatter

  - by Chris B

  Hi. I am very close to completing my first iphone app and it has been a joy. I am trying to add running timecode using the current time via an NSTimer displaying the current time (NSDate) on a UILabel. NSDate is working fine for me, showing hour, minute, second, milliseconds. But instead of milliseconds, I need to show 24 frames per second. The problem is that I need the frames per second to be synced 100% with the hour, minute and second, so I can't add the frames in a separate timer. I tried that and had it working but the frame timer was not running in sync with the date timer. Can anyone help me out with this? Is there a way to customize NSDateFormatter so that I can have a date timer formatted with 24 frames per second? Right now I'm limited to formatting just hours, minutes, seconds, and milliseconds. Here's the code I'm using right now -(void)runTimer { // This starts the timer which fires the displayCount method every 0.01 seconds runTimer = [NSTimer scheduledTimerWithTimeInterval: .01 target: self selector: @selector(displayCount) userInfo: nil repeats: YES]; } //This formats the timer using the current date and sets text on UILabels - (void)displayCount; { NSDateFormatter *formatter = [[[NSDateFormatter alloc] init] autorelease]; NSDate *date = [NSDate date]; // This will produce a time that looks like "12:15:07:75" using 4 separate labels // I could also have this on just one label but for now they are separated // This sets the Hour Label and formats it in hours [formatter setDateFormat:@"HH"]; [timecodeHourLabel setText:[formatter stringFromDate:date]]; // This sets the Minute Label and formats it in minutes [formatter setDateFormat:@"mm"]; [timecodeMinuteLabel setText:[formatter stringFromDate:date]]; // This sets the Second Label and formats it in seconds [formatter setDateFormat:@"ss"]; [timecodeSecondLabel setText:[formatter stringFromDate:date]]; //This sets the Frame Label and formats it in milliseconds //I need this to be 24 frames per second [formatter setDateFormat:@"SS"]; [timecodeFrameLabel setText:[formatter stringFromDate:date]]; }

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• Linux USB debug connection to LuminaryMicro evaluation board

  - by mikelong

  Hi, I am trying to connect a Stellaris LM3S8962 evaluation kit to a linux host machine. I am using the CodeSourcery G++ for the development toolchain. When I try to run a helloworld example the connection fails with this message: arm-stellaris-eabi-sprite: error: E104. I/O Error communicating with USB Device. arm-stellaris-eabi-sprite: waiting for GDB connection, to pass error along warning: Remote failure reply: E.fatal.E104. I/O Error communicating with USB Device. arm-stellaris-eabi-sprite: error: E002. Not initialized When I connect the evaluation board with the USB cable it seems the device is made available to the system: Mar 24 14:37:16 n6-ws2 kernel: usb 5-2: USB disconnect, address 5 Mar 24 14:37:18 n6-ws2 kernel: usb 5-2: new full speed USB device using uhci_hcd and address 6 Mar 24 14:37:19 n6-ws2 kernel: usb 5-2: configuration #1 chosen from 1 choice Also, it seems that I can connect in some way via the command line tool (but I do get some strange characters): [mlong@n6-ws2 bin]$ ./arm-stellaris-eabi-sprite -i CodeSourcery ARM Debug Sprite (Sourcery G++ 4.4-104) armusb: [speed=] ARMUSB device armusb:///?? - ?? (??) Does anyone have any suggestions I could try? Thanks a lot, Mike

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• PHP script not automatically updating when moved to another server

  - by user32007

  A friend built a ranking system on his site and I am trying to host in on mine via WordPress and Go Daddy. It updates for him but when I load it to my site, it works for 6 hours, but as soon as the reload is supposed to occur, it errors and I get a 500 timeout error. His page is at: jeremynoeljohnson .com/yakezieclub My page is currently at http://sweatingthebigstuff.com/yakezieclub but when you ?reload=1 it will give the error. Any idea why this might be happening? Any settings that I might need to change? Here is the top of the index.php file. I'm not sure which part of any of it is messing up. I literally uploaded the same code as him. Here's the reload part: $cachefile = "rankings.html"; $daycachefile = "rankings_history.xml"; $cachetime = (60 * 60) * 6; // every 6 hours, the cache refreshes $daycachetime = (60 * 60) * 24; // every 24 hours, the history will be written to // - or whenever the page is requested after 24 hours has passed $writenewdata = false; if (!empty($_GET['reload'])) { if ($_GET['reload']== 1) { $cachetime = 1; } } if (!empty($_GET['reloadhistory'])) { if ($_GET['reloadhistory'] == 1) { $daycachetime = 1; $cachetime = 1; } } if (file_exists($daycachefile) && (time() - $daycachetime < filemtime($daycachefile))) { // Do nothing } else { $writenewdata = true; $cachetime = 1; } // Serve from the cache if it is younger than $cachetime if (file_exists($cachefile) && (time() - $cachetime < filemtime($cachefile))) { include($cachefile); echo "<!-- Cached ".date('jS F Y H:i', filemtime($cachefile))." -->"; exit; } ob_start(); // start the output buffer ?>

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• [php] Cookies only changing value every two page refreshes?

  - by Gazillion

  Hello, I'm trying to implement some pixel tracking where I will save certain values in a cookie to then forward users to another page. If users purchase a product after being forwarded to the online store by us the store adds an image tag in the page with our php script included. With the values set in the cookie we would like to track conversions. I understand this tracking technique has some limitations (like if a user has cookies turned off or if they do not load images but that's the direction my client wanted to go in). The problem I'm having is that the cookie's behaviour is extremely... random. I've been trying to track their values (with a var_dump so I don't have to wait for a page reload to view the cookie's value) but it seems the value for one field only gets refreshed every two page reloads. setcookie("tracking[cn]", $cn, time()+3600*24*7,'/','mydomain.com'); setcookie("tracking[t]", $t, time()+3600*24*7,'/','mydomain.com'); setcookie("tracking[kid]", $kid, time()+3600*24*7,'/','mydomain.com'); redirectTo($redirect_url); the values of cn, t are fine but for some reason kid is always wrong (having taken the value of the previous kid) Any help would be extremely appreciated I've been at this all evening! :)

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• Linux: modpost does not build anything

  - by waffleman

  I am having problems getting any kernel modules to build on my machine. Whenever I build a module, modpost always says there are zero modules: MODPOST 0 modules To troubleshoot the problem, I wrote a test module (hello.c): #include <linux/module.h> /* Needed by all modules */ #include <linux/kernel.h> /* Needed for KERN_INFO */ #include <linux/init.h> /* Needed for the macros */ static int __init hello_start(void) { printk(KERN_INFO "Loading hello module...\n"); printk(KERN_INFO "Hello world\n"); return 0; } static void __exit hello_end(void) { printk(KERN_INFO "Goodbye Mr.\n"); } module_init(hello_start); module_exit(hello_end); Here is the Makefile for the module: obj-m = hello.o KVERSION = $(shell uname -r) all: make -C /lib/modules/$(KVERSION)/build M=$(shell pwd) modules clean: make -C /lib/modules/$(KVERSION)/build M=$(shell pwd) clean When I build it on my machine, I get the following output: make -C /lib/modules/2.6.32-27-generic/build M=/home/waffleman/tmp/mod-test modules make[1]: Entering directory `/usr/src/linux-headers-2.6.32-27-generic' CC [M] /home/waffleman/tmp/mod-test/hello.o Building modules, stage 2. MODPOST 0 modules make[1]: Leaving directory `/usr/src/linux-headers-2.6.32-27-generic' When I make the module on another machine, it is successful: make -C /lib/modules/2.6.24-27-generic/build M=/home/somedude/tmp/mod-test modules make[1]: Entering directory `/usr/src/linux-headers-2.6.24-27-generic' CC [M] /home/somedude/tmp/mod-test/hello.o Building modules, stage 2. MODPOST 1 modules CC /home/somedude/tmp/mod-test/hello.mod.o LD [M] /home/somedude/tmp/mod-test/hello.ko make[1]: Leaving directory `/usr/src/linux-headers-2.6.24-27-generic' I looked for any relevant documentation about modpost, but found little. Anyone know how modpost decides what to build? Is there an environment that I am possibly missing? BTW here is what I am running: uname -a Linux waffleman-desktop 2.6.32-27-generic #49-Ubuntu SMP Wed Dec 1 23:52:12 UTC 2010 i686 GNU/Linux

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• Deobfuscating Javascript

  - by David Murdoch

  What is this monstrosity? Anyone know of a way to make it readable? <script type="text/javascript"> //<![CDATA[ <!-- var x="function f(x){var i,o=\"\",l=x.length;for(i=0;i<l;i+=2) {if(i+1<l)o+=" + "x.charAt(i+1);try{o+=x.charAt(i);}catch(e){}}return o;}f(\"ufcnitnof x({)av" + " r,i=o\\\"\\\"o,=l.xelgnhtl,o=;lhwli(e.xhcraoCedtAl(1/)3=!76{)rt{y+xx=l;=+;" + "lc}tahce({)}}of(r=i-l;1>i0=i;--{)+ox=c.ahAr(t)i};erutnro s.buts(r,0lo;)f}\\" + "\"(0),9\\\"\\\\$.;(.34U03\\\\\\\\16\\\\0E\\\\NSCZhC24\\\\03\\\\01\\\\\\\\St" + "DEMPbM02\\\\0C\\\\x#opms58aJ}qb<jb7`17\\\\\\\\hc7s17\\\\\\\\rzEeljdp7m03\\\\"+ "\\\\36\\\\0F\\\\24\\\\06\\\\01\\\\\\\\25\\\\01\\\\02\\\\\\\\26\\\\03\\\\03\\"+ "\\\\\\(W4N02\\\\\\\\24\\\\02\\\\00\\\\\\\\07\\\\0N\\\\14\\\\0P\\\\BI07\\\\0" + "4\\\\00\\\\\\\\02\\\\02\\\\02\\\\\\\\14\\\\06\\\\02\\\\\\\\24\\\\0L\\\\25\\" + "\\06\\\\01\\\\\\\\3:?(>4\\\"\\\\f(;} ornture;}))++(y)^(iAtdeCoarchx.e(odrCh" + "amCro.fngriSt+=;o27=1y%i;+=)y90==(iif){++;i<l;i=0(ior;fthnglex.l=\\\\,\\\\\\"+ "\"=\\\",o iar{vy)x,f(n ioctun\\\"f)\")" ; while(x=eval(x)); //--> //]]> </script>

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• Insert text depending on time of day and day of week.

  - by ploughansen

  I'm trying to piece together a php script to output different text depending on what day it is and the time of day. Example: On weekdays (mon-fri), I would like to output text according to the following periods of time (24H, server time, UTC): 00:00-08:00: "Lorem ipsum" 08:00-13:00: "dolor sit amet" 13:00-15:00: "Pellentesque habitant" 15:00-15:30: "dolor sit amet" 15:30-24:00: "Lorem ipsum" On weekends (sat-sun), I would like to output the following text in this time period: 00:00-24:00 "Lorem ipsum" Can anyone help with a php script to do that? I've already gotten some help over at the css-tricks forum. They supplied this code: <?php $date = strtotime("now"); $hour = date("H", $date); switch($hour) { case 00: case 01: case 02: case 03: case 04: case 05: case 06: case 07: case 08: $dets = array("img" => "image1.png", "txt" => "Lorem ipsum"); break; case 09: case 10: case 11: case 12: case 13: $dets = array("img" => "image2.png", "txt" => "dolor sit amet"); break; case 14: case 15: case 16: $dets = array("img" => "image3.png", "txt" => "Pellentesque habitant"); break; case 17: case 18: case 19: case 20: case 21: case 22: case 23: case 24: $dets = array("img" => "image1.png", "txt" => "Lorem ipsum"); break; } echo "<img src='$dets[img]' alt='$dets[txt]' />"; ?> But it works for all days, and only in full hours. I want to be able to specify per half-hour and on a day to day basis. Still a php-noob so I'm hoping someone can help me.

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• Void* array casting to float, int32, int16, etc.

  - by Griffin

  Hey guys, I've got an array of PCM data, it could be 16 bit, 24 bit packed, 32 bit, etc.. It could be signed, or unsigned, and it could be 32 or 64 bit floating point. It is currently stored as a "void**" matrix, indexed by channel, then by frame. The goal is to allow my library to take in any PCM format and buffer it, without requiring manipulation of the data to fit a designated structure. If the A/D converter spits out 24 bit packed arrays of interleaved PCM, I need to accept it gracefully. I also need to support 16 bit non interleaved, as well as any permutation of the above formats. I know the bit depth and other information at runtime, and I'm trying to code efficiently while not duplicating code. What I need is an effective way to cast the matrix, put PCM data into the matrix, and then pull it out later. I can cast the matrix to int32_t, or int16_t for the 32 and 16 bit signed PCM respectively, I'll probably have to store the 24 bit PCM in an int32_t for 32 bit, 8 bit byte systems as well. Can anyone recommend a good way to put data into this array, and pull it out later? I'd like to avoid large sections of code which look like: switch( mFormat ) { case 1: // unsigned 8 bit for( int i = 0; i < mChannels; i++ ) framesArray = (uint8_t*)pcm[i]; break; case 2: // signed 8 bit for( int i = 0; i < mChannels; i++ ) framesArray = (int8_t*)pcm[i]; break; case 3: // unsigned 16 bit ... Limitations: I'm working in C/C++, no templates, no RTTI, no STL. Think embedded. Things get trickier when I have to port this to a DSP with 16 bit bytes. Does anybody have any useful macros they might be willing to share? Thanks, -Griff

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• Learning OOP in PHP, trying to refactor my code. Can't connect to database anymore.

  - by Cortopasta

  Thought I understood how classes work, then I tried this code: class user { var $dbcon; var $dbinfo; var $con; var $error; function dbConnect() { $this->dbinfo['server'] = "localhost"; $this->dbinfo['database'] = "foolish_faith"; $this->dbinfo['user'] = "user"; $this->dbinfo['password'] = "password"; $this->con = "mysql:host=".$dbinfo['server']."; dbname=".$dbinfo['database']; $this->dbcon = new PDO($con, $dbinfo['user'], $dbinfo['password']); $this->dbcon->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); $this->error = $this->dbcon->errorInfo(); if ($error[0] != "") { print "Error!"; print_r($error); } } } Now it just spits out this error: Fatal error: Uncaught exception 'PDOException' with message 'invalid data source name' in E:\PortableApps\xampp\htdocs\dbcon.php:24 Stack trace: #0 E:\PortableApps\xampp\htdocs\dbcon.php(24): PDO-__construct('', NULL, NULL) #1 E:\PortableApps\xampp\htdocs\login.php(4): user-dbConnect() #2 {main} thrown in E:\PortableApps\xampp\htdocs\dbcon.php on line 24 Can anybody see what I'm doing wrong, as I'm sure it has to do with my lack of knowledge when it comes to classes?

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• OpenGL Pixel Format Attributes (NSOpenGLPixelFormatAttibutes) explanation?

  - by nacho4d

  Hi, I am not new to OpenGL, but not an expert. Many tutorials teach how to draw, 3D, 2D, projections, orthogonal, etc, but How about setting a the view? (NSOpenGLView in Cocoa, Macs). For example I have this: - (id) initWithFrame: (NSRect) frame { GLuint attribs[] = { //PF: PixelAttibutes NSOpenGLPFANoRecovery, NSOpenGLPFAWindow, NSOpenGLPFAAccelerated, NSOpenGLPFADoubleBuffer, NSOpenGLPFAColorSize, 24, NSOpenGLPFAAlphaSize, 8, NSOpenGLPFADepthSize, 24, NSOpenGLPFAStencilSize, 8, NSOpenGLPFAAccumSize, 0, 0 }; NSOpenGLPixelFormat* fmt = [[NSOpenGLPixelFormat alloc] initWithAttributes: (NSOpenGLPixelFormatAttribute*) attribs]; return self = [super initWithFrame:frame pixelFormat: [fmt autorelease]]; } And I don't understand very well their usage, specially when combining them. For example: If I want my view to be capable of full screen should I write NSOpenGLPFAFullScreen only ? or both? (by capable I mean not always in full screen) Regarding Double Buffer, what is this exactly? (Below: Apple's definition) If present, this attribute indicates that only double-buffered pixel formats are considered. Otherwise, only single-buffered pixel formats are considered Regarding Color: if NSOpenGLPFAColorSize is 24 and NSOpenGLPFAColorSize is 8 then it means that alpha and RGB components are treated differently? what happen if I set the former to 32 and the later to 0? Etc, etc,In general how do I learn to set my view from scratch? Thanks in advance. Ignacio.

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• Parsing localized date strings in PHP

  - by Mikeage

  Hi, I have some code (it's part of a wordpress plugin) which takes a text string, and the format specifier given to date(), and attempts to parse it into an array containing hour, minute, second, day, month, year. Currently, I use the following code (note that strtotime is horribly unreliable with things like 01/02/03) // $format contains the string originally given to date(), and $content is the rendered string if (function_exists('date_parse_from_format')) { $content_parsed = date_parse_from_format($format, $content); } else { $content = preg_replace("([0-9]st|nd|rd|th)","\\1",$content); $content_parsed = strptime($content, dateFormatToStrftime($format)); $content_parsed['hour']=$content_parsed['tm_hour']; $content_parsed['minute']=$content_parsed['tm_min']; $content_parsed['day']=$content_parsed['tm_mday']; $content_parsed['month']=$content_parsed['tm_mon'] + 1; $content_parsed['year']=$content_parsed['tm_year'] + 1900; } This actually works fairly well, and seems to handle every combination I've thrown at it. However, recently someone gave me 24 ??????, 2010. This is Russian for November 24, 2010 [the date format was j F, Y], and it is parsed as year = 2010, month = null, day = 24. Are there any functions that I can use that know how to translate both November and ?????? into 11? EDIT: Running print_r(setlocale(LC_ALL, 0)); returns C. Switching back to strptime() seems to fix the problem, but the docs warn: Internally, this function calls the strptime() function provided by the system's C library. This function can exhibit noticeably different behaviour across different operating systems. The use of date_parse_from_format(), which does not suffer from these issues, is recommended on PHP 5.3.0 and later. Is date_parse_from_format() the correct API, and if so, how do I get it to recognize the language?

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• Tweaking rendering of thumbnail images in galleria

  - by saket

  I am working on the classic theme of Galleria to display a gallery. Here the requirement is to display the thumbnails in two row with the images in following order with a horizontal scroller if the thumbnails list div width increases more than 24. 1 3 5 7 9 11 13 15 17 19 21 23 .. 2 4 6 8 10 12 14 16 18 20 22 24 .. For if the images are less than 24 and more than 12 then the order should be rendered in two rows as :- 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 .. For if the images is less than 12 the images should be rendered in a single row as :- 1 2 3 4 5 6 7... Presently what I have done is I am using css3 column property to do this using different classes on the basis of image counts. This is working in all browsers but in IE8. So, is there any substitute for css3 column property for IE8 or less. Or some better way to implement the stuff that works fine in IE as well.

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• Comparing date range quarters sql server

  - by CR41G14

  I have a policies in a system PolRef Start End POL123 22/11/2012 23/12/2014 POL212 24/09/2012 23/10/2012 POL214 23/08/2012 29/09/2012 I am asking a user for a reporting date, the user enters 24/10/2012 this becomes @StartDate From this I derive what the quarter is by the month: set @currentMonth = Month(@StartDate) if @currentMonth = 1 or @currentMonth = 2 or @currentMonth = 3 begin set @startmonth = 1 set @endmonth = 3 end if @currentMonth = 4 or @currentMonth = 5 or @currentMonth = 6 begin set @startmonth = 4 set @endmonth = 6 end if @currentMonth = 7 or @currentMonth = 8 or @currentMonth = 9 begin set @startmonth = 7 set @endmonth = 9 end if @currentMonth = 10 or @currentMonth = 11 or @currentMonth = 12 begin set @startmonth = 10 set @endmonth = 12 end I then get a date range: @quarterStartDate = CAST(CAST(YEAR(@StartDate) AS varchar) + '-' + CAST(@startMonth AS varchar) + '-' + '01') AS Date) @quarterEndDate = CAST(CAST(YEAR(@EcdDate) AS varchar) + '-' + CAST(@endMonth AS varchar) + '-' + '31') AS Date) This will give me 01-10-2012 and 31-12-2012. Basically I need a script to only bring back the policies that are in this quarter. The policy doesn't have to span the entire quarter date range, just exist in the quarter date range. The results expected would be PolRef Start End POL123 22/11/2012 23/12/2014 POL212 24/09/2012 23/10/2012 Pol123 appears because it spans over the quarterly date range. Pol212 is there because it expires in that quarter date range. Pol214 does not appear because it neither spans, expires or starts in this quarter. Any help would be greatly appreciated

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• PHP date/time help/

  - by NOW

  I keep getting a value of 0 for $years and $months when there should be a value other then 0 can someone tell me what I'm doing wrong with my code? And what I need to fix? I'm trying to subtract two dates. Here is my PHP code. $delete_date = "2000-01-12 08:02:39"; $current_date = date('Y-m-d H:i:s'); //current date $diff = abs(strtotime($current_date) - strtotime($delete_date)); $years = floor($diff / (365*60*60*24)); $months = floor(($diff - $years * 365*60*60*24) / (30*60*60*24)); echo $current_date . '<br />'; echo $delete_date. '<br />'; echo $diff. '<br />'; echo $years. '<br />'; echo $months. '<br />';

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• The SVG text node disappear after change its text content

  - by sureone

  svg: <text xml:space="preserve" y="228" x="349.98" text-anchor="middle" stroke-width="0" stroke-linejoin="null" stroke-linecap="null" stroke-dasharray="null" stroke="#000000" fill="#000000" style="cursor: move; pointer-events: inherit;" font-size="24" font-family="serif" id="cur_b">cur_b</text> <text xml:space="preserve" y="222" x="103.98" text-anchor="middle" stroke-width="0" stroke-linejoin="null" stroke-linecap="null" stroke-dasharray="null" stroke="#000000" fill="#000000" style="cursor: move; pointer-events: inherit;" font-size="24" font-family="serif" id="cur_a">cur_a</text> <text xml:space="preserve" y="229" x="590.0211" text-anchor="middle" stroke-width="0" stroke-linejoin="null" stroke-linecap="null" stroke-dasharray="null" stroke="#000000" fill="#000000" style="cursor: move; pointer-events: inherit;" font-size="24" font-family="serif" id="cur_c">cur_c</text> NSString* theJS = @ "var theNode0 = document.getElementById('cur_a'); theNode0.textContent='200A'; theNode0.setAttribute('fill','#FF0000'); var theNode1 = document.getElementById('cur_c'); theNode1.textContent='200A'; theNode1.setAttribute('fill','#00FF00');" [self.webView stringByEvaluatingJavaScriptFromString:theJS]; The SVG text node value is changed but disappeared after about one second.

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• How do I set up nvidia graphics adapter to put out 1080p, it seems to be using interlace mode>

  - by keepitsimpleengineer

  After upgrading to 12.04, my mythbuntu client/server seems to be running in 1080i, the clue comes from: [ 1176.117] (II) NVIDIA(0): Setting mode "1920x1080_60i" [ 1231.340] (II) NVIDIA(0): Setting mode "DFP-1:1920x1080_60@1920x1080+0+0" This is from Xorg.0.log. This whole thing started from video tearing when watching Mythtv recordings. It didn't happen in 10.10. Should I use "TVStandard" "HD1080p" in the screen section since this is a dedicated HTPC? It only connects to an HDTV (1080p) via hdmi. Here is the current xorg.conf file: # nvidia-settings: X configuration file generated by nvidia-settings # nvidia-settings: version 270.29 (buildd@allspice) Fri Feb 25 14:42:07 UTC 2011 Section "ServerLayout" Identifier "Layout0" Screen 0 "Screen0" 0 0 # commented out by update-manager, HAL is now used and auto-detects devices # Keyboard settings are now read from /etc/default/console-setup # InputDevice "Keyboard0" "CoreKeyboard" # commented out by update-manager, HAL is now used and auto-detects devices # Keyboard settings are now read from /etc/default/console-setup # InputDevice "Mouse0" "CorePointer" Option "Xinerama" "0" EndSection Section "Files" FontPath "unix/:7100" EndSection # commented out by update-manager, HAL is now used and auto-detects devices # Keyboard settings are now read from /etc/default/console-setup #Section "InputDevice" # # generated from default # Identifier "Mouse0" # Driver "mouse" # Option "Protocol" "auto" # Option "Device" "/dev/psaux" # Option "Emulate3Buttons" "no" # Option "ZAxisMapping" "4 5" #EndSection # commented out by update-manager, HAL is now used and auto-detects devices # Keyboard settings are now read from /etc/default/console-setup #Section "InputDevice" # # generated from default # Identifier "Keyboard0" # Driver "kbd" #EndSection Section "Monitor" # HorizSync source: edid, VertRefresh source: edid Identifier "Monitor0" VendorName "Unknown" ModelName "SAMSUNG" HorizSync 26.0 - 81.0 VertRefresh 24.0 - 75.0 Option "DPMS" EndSection Section "Device" Identifier "Device0" Driver "nvidia" VendorName "NVIDIA Corporation" BoardName "GeForce GT 240" Option "TripleBuffer" "1" EndSection Section "Screen" Identifier "Screen0" Device "Device0" Monitor "Monitor0" DefaultDepth 24 Option "TwinView" "0" Option "metamodes" "DFP: nvidia-auto-select +0+0" SubSection "Display" Depth 24 EndSubSection EndSection After a little digging, the question changes slightly, to wit... Per Chapter 19 of nvidia README... "If the EDID for the display device reported a preferred mode timing, and that mode timing is considered a valid mode, then that mode is used as the "nvidia-auto-select" mode." The EDID for my HDMI connected LCD monitor says use first device as preferred. Prefer first detailed timing : Yes Also: (--) NVIDIA(0): EDID maximum pixel clock : 230.0 MHz The list: (from startx -- -verbose 6 ) (--) NVIDIA(0): Detailed Timings: (--) NVIDIA(0): 1920 x 1080 @ 60 Hz (--) NVIDIA(0): Pixel Clock : 148.50 MHz (--) NVIDIA(0): HRes, HSyncStart : 1920, 2008 (--) NVIDIA(0): HSyncEnd, HTotal : 2052, 2200 (--) NVIDIA(0): VRes, VSyncStart : 1080, 1084 (--) NVIDIA(0): VSyncEnd, VTotal : 1089, 1125 (--) NVIDIA(0): H/V Polarity : +/+ This is the actual mode selected: (from xorg.0.log) (--) NVIDIA(0): 1920 x 1080 @ 60 Hz (--) NVIDIA(0): Pixel Clock : 74.18 MHz (--) NVIDIA(0): HRes, HSyncStart : 1920, 2008 (--) NVIDIA(0): HSyncEnd, HTotal : 2052, 2200 (--) NVIDIA(0): VRes, VSyncStart : 1080, 1084 (--) NVIDIA(0): VSyncEnd, VTotal : 1094, 1124 (--) NVIDIA(0): H/V Polarity : +/+ (--) NVIDIA(0): Extra : Interlaced (--) NVIDIA(0): CEA Format : 5 So my HTPC is down-converting to 1080i and then the Monitor is up-converting to 1080p How can I fix this, please?

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• Setting static IP on CentOS without system-config-network

  - by Josh

  Background information: I have a problem installing system-config-network. It appears it cannot find an update to sqlite (checks every mirror and comes back empty handed.) I have tried the skipping broken option and package cleanups from yum-utils. Since I cannot get it installed, I decided to set an ip manually from console. A quick Google search comes back empty handed as for an easy how-to guide that works. What do I need to do for a currently configured DHCP ip to change it to a Static IP from console. Thanks, Josh

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• Best Practice: iDRAC & NIC Selection

  - by Josh Brower

  I am setting up a new Dell server with iDRAC 6 Express. My options for the NIC are: 1) Shared 2) Shared with failover to LOM2 3) Shared with failover to all LOMs The server has 2x dual-nic PCI-E cards (total of 4 nics) My questions are thusly: -What is best practice for setting this up? Is there any reason why I would not want option 3? -If the NIC is being used for both iDRAC and the OS, (there is no dedicated iDRAC nic), does this ever cause any kinds of issues for either iDRAC or the OS? Thanks- -Josh

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