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• ZSH: how can I run Vim-style substitute command in command line?

  - by HH

  I forgot the array syntax while on Zsh-commandline: $ hello=[1,2,3,4] %ERR: I want to fix the problem by substitution. In Vim, I would do :.s@,@ @g. So how can I edit the current line, or let call it a current buffer, by running a command on it?

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• C++/CLI, I have a Byte[] and I need a char* to the first and last elements.

  - by Jacob G

  I've been handed a Byte[] that contains a file. I need to pass this to another method that is expecting two parameters, a char* to the beginning of the file and a char* to the end of the file. I'm assuming I need to pin the array first so it doesn't get collected. I don't imagine I can then just cast the first and last elements, right?

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• Java sockets - how to determine data type on the server side?

  - by markovuksanovic

  I'm using Java sockets for client - server application. I have a situation when sometimes client needs to send a byte array (using byteArrayOutputStream) and sometimes it should send a custom java object. How can I read the information from the input stream on the server side and determine what is in the stream so that I can properly process that?

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• [solved] call_user_func_array problems

  - by Knarf

  I have a class with this in self::$DB = new PDO("mysql:dbname=$dbname;host:=127.0.0.1" , 'root' , ''); and then this public static function __callStatic($name, $arguments) { return call_user_func_array(array('self::$DB', $name), $arguments); } How does I make it right/work?

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• How to extract text using regex?

  - by Lost_in_code

  In the HTML below: <a href="link1.php">1</a><a href="link2.php">2</a><a href="link3.php">3</a> How do I extract link1.php,link2.php,link3.php and push them into an array using regex? (There could be N number of <a> tags in the text)

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• if with multiple conditions, order of execution

  - by markus

  Hi, In an if statement with multiple conditions is second executed if the outcome is clear after checking the first condition? example: if(i>0 && array[i]==0){ } If I swap the conditions a seg fault may occur for negative values of i but this way the memory debugger doesn't find a problem. Can I be sure that this works always or do have have to use nested if statements?

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• Why PHP Error: Call to a member function set_prefix() on a non-object

  - by Rebol Tutorial

  I got this error Fatal error: Call to a member function set_prefix() on a non-object in /home/reboltutorial/reboltutorial.com/wp-settings.php on line 254 line 254 contains: $prefix = $wpdb->set_prefix($table_prefix); // set up global tables This occurs if I try to call index_wordpress() instead of calling these two lines define('WP_USE_THEMES', true); require('./wp-blog-header.php'); so this doesn't work: <?php function index_wordpress() { define('WP_USE_THEMES', true); require('./wp-blog-header.php'); } ?> <?php if(!function_exists('apache_request_headers')) { function apache_request_headers() { $headers = array(); foreach($_SERVER as $key => $value) { if(substr($key, 0, 5) == 'HTTP_') { $headers[str_replace(' ', '-', ucwords(str_replace('_', ' ', strtolower(substr($key, 5)))))] = $value; } } return $headers; } } function getCurrentPageUrl() { $pageURL = 'http'; if ($_SERVER["HTTPS"] == "on") {$pageURL .= "s";} $pageURL .= "://"; if ($_SERVER["SERVER_PORT"] != "80") { $pageURL .= $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"]; } else { $pageURL .= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"]; } return $pageURL; } $a = apache_request_headers(); $pos = strrpos($a["User-Agent"], "REBOL"); if ($pos === false) { index_wordpress(); } else { if ($_SERVER['REMOTE_ADDR'] != "69.163.203.14") { $command= './cgi-bin/index.cgi '. '"' . getCurrentPageUrl() . '"'; echo system($command); } else { index_wordpress(); } } ?> while this works: <?php if(!function_exists('apache_request_headers')) { function apache_request_headers() { $headers = array(); foreach($_SERVER as $key => $value) { if(substr($key, 0, 5) == 'HTTP_') { $headers[str_replace(' ', '-', ucwords(str_replace('_', ' ', strtolower(substr($key, 5)))))] = $value; } } return $headers; } } function getCurrentPageUrl() { $pageURL = 'http'; if ($_SERVER["HTTPS"] == "on") {$pageURL .= "s";} $pageURL .= "://"; if ($_SERVER["SERVER_PORT"] != "80") { $pageURL .= $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"]; } else { $pageURL .= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"]; } return $pageURL; } $a = apache_request_headers(); $pos = strrpos($a["User-Agent"], "REBOL"); if ($pos === false) { define('WP_USE_THEMES', true); require('./wp-blog-header.php'); } else { if ($_SERVER['REMOTE_ADDR'] != "69.163.203.14") { $command= './cgi-bin/index.cgi '. '"' . getCurrentPageUrl() . '"'; echo system($command); } else { define('WP_USE_THEMES', true); require('./wp-blog-header.php'); } } ?>

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• C++ - 3 possible values in Variable?

  - by noryb009

  I need to store a 30 letter combination, but each letter can only be "0", "1" or "2". When I use sizeof(myString), it returns 32. I want to use this 30 letter combination to access a row of an array, so I'm wondering if it is possible to use a 3 value bool of some sort to store 1 of 3 values in.

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• How can we send a large size of data (>2038 char) from client to Server using ajax?

  - by Dilip

  How can we send a large size of data (2038 char) from client to Server using ajax? I like to send an array of key-pair values of size more than 10KB. I am currently using cookies, is there any other prefered way by which we can send it through an Ajax Call.

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• Form filter in symfony: imposible when a field is type "date"

  - by user248959

  Hi, anyone has tried to create a symfony form filter from a class which has a field of type "date" ? When i do it, i get this error: 500 | Internal Server Error | Doctrine_Connection_Mysql_Exception SQLSTATE[HY093]: Invalid parameter number: number of bound variables does not match number of tokens stack trace I think the error dependens on this command: 'SELECT b.id AS b_id, b.day AS b_day FROM birthday b WHERE b.day = ? AND b.day <= ?', array('month' = '1','day' = '2', 'year' = '2014') but i dont know how can i solve it.. Any idea? Javi

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• Can i Use the value of a variable from within a ruby script inside ssh.exec()

  - by kamal

  If i have a # {} , like #{results}, in the snippet below: results = Array.new                                   f = open("/Users/kahmed/messages", "r")                                   f.each_line do |line|                                        results << "#{$.} #{line}" if line =~ /NFE/                                       put #{results}                                   end How can i use it in the following ssh.exec command Net::SSH.start( HOST, USER, :password = PASS ) do|ssh|                                   ssh.exec(#{results})

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• getting function's argument names

  - by Gotys

  in PHP Consider this function: function test($name, $age) {} I need to somehow extract the parameter names (for generating custom documentations automatically) so that I could do something like: get_func_argNames('test'); and it would return Array['name','age'] . Is this even possible in PHP ?

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• How to make a struct of structs in C++

  - by Phenom

  Can a struct contain other structs? I would like to make a struct that holds an array of four other structs. Is this possible? What would the code look like?

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• Regex get multiple segments of a string in javascript

  - by dave

  I'm trying to extract some results from a download manager, the format is: [#8760e4 4.3MiB/40MiB(10%) CN:2 DL:4.9MiB ETA:7s] what I'd like to extract from the above example, would be an array that looks like this: ['4.3','MiB','40','MiB','10%','4.9','MiB','7','s'] I've tried to split this in various combinations, but nothing seems to be right. Would anyone happen to know how to do this or be able to offer suggestions? Thank you!

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• How to convert from base-256 to base-N, where N is higher than 16?

  - by mark

  Dear ladies and sirs. I need to convert an array of bytes to another base, namely 85. In math terms the question is how to convert from base-256 to base-85 in the most efficient way? This question is inspired by my previous question - http://stackoverflow.com/questions/2827627/what-is-the-most-efficient-way-to-encode-an-arbitrary-guid-into-readable-ascii-3 Thanks.

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• I need a dictionary-like mapping between characters and other kinds of objects. Which class would be

  - by nullPointerException

  This is in Squeak/Pharo. If I want to have a mapping between Character objects like $a and $b to other kinds of objects, and want to look up those other objects based on the Character, what is the best class to use? Dictionary is an obvious choice, but seems wasteful to be hashing character objects which are basically already numbers. I guess what I want is a kind of array where the character value (number) is used as an index/offset, but I am not sure if this is possible with Unicode.

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• How to share a dictionary between multiple processes in python without locking

  - by RandomVector

  I need to share a huge dictionary (around 1 gb in size) between multiple processs, however since all processes will always read from it. I dont need locking. Is there any way to share a dictionary without locking? The multiprocessing module in python provides an Array class which allows sharing without locking by setting lock=false however There is no such option for Dictionary provided by manager in multiprocessing module.

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• IntentService android download and return file to Activity

  - by Andrew G

  I have a fairly tricky situation that I'm trying to determine the best design for. The basics are this: I'm designing a messaging system with a similar interface to email. When a user clicks a message that has an attachment, an activity is spawned that shows the text of that message along with a paper clip signaling that there is an additional attachment. At this point, I begin preloading the attachment so that when the user clicks on it - it loads more quickly. currently, when the user clicks the attachment, it prompts with a loading dialog until the download is complete at which point it loads a separate attachment viewer activity, passing in the bmp byte array. I don't ever want to save attachments to persistent storage. The difficulty I have is in supporting rotation as well as home button presses etc. The download is currently done with a thread and handler setup. Instead of this, I'd like the flow to be the following: User loads message as before, preloading begins of attachment as before (invisible to user). When the user clicks on the attachment link, the attachment viewer activity is spawned right away. If the download was done, the image is displayed. If not, a dialog is shown in THIS activity until it is done and can be displayed. Note that ideally the download never restarts or else I've wasted cycles on the preload. Obviously I need some persistent background process that is able to keep downloading and is able to call back to arbitrarily bonded Activities. It seems like the IntentService almost fits my needs as it does its work in a background thread and has the Service (non UI) lifecycle. However, will it work for my other needs? I notice that common implementations for what I want to do get a Messenger from the caller Activity so that a Message object can be sent back to a Handler in the caller's thread. This is all well and good but what happens in my case when the caller Activity is Stopped or Destroyed and the currently active Activity (the attachment viewer) is showing? Is there some way to dynamically bind a new Activity to a running IntentService so that I can send a Message back to the new Activity? The other question is on the Message object. Can I send arbitrarily large data back in this package? For instance, rather than send back that "The file was downloaded", I need to send back the byte array of the downloaded file itself since I never want to write it to disk (and yes this needs to be the case). Any advice on achieving the behavior I want is greatly appreciated. I've not been working with Android for that long and I often get confused with how to best handle asynchronous processes over the course of the Activity lifecycle especially when it comes to orientation changes and home button presses...

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• Overriding Built-in Classes (Python)

  - by Yipeng

  How can I view and override the full definition for built in classes? I have seen the library docs but am looking for something more. For e.g. is it possible to override the Array Class such that the base index starts from 1 instead of 0, or to override .sort() of list to a sorting algorithm of my own liking?

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• java: primitive arrays -- are they initialized?

  - by Jason S

  If I use a statement in my code like int[] a = new int[42]; does it initialized the array to anything in particular? (e.g. 0) I seem to remember this is documented somewhere but I am not sure what to search for.

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• Can a PHP function return a lot of vars?

  - by sundowatch

  Can a PHP function return a lot of vars without array? I want like that: <?php public function a() { $a = "a"; $b = "b"; $c = "c"; } echo a()->a; echo a()->b; echo a()->c; ?> How can I access to $a,$b,$c vars?

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• Question on struct

  - by barbgal

  i see lot of struct code like below struct codDrives { WCHAR letter; WCHAR volume[100]; } Drives[26]; we can use variables or array something like that to store the data.. but i am not sure why use struct in the programs. i am beginner so please for my dump question Thank you for the time spent to me

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• How I return the size of the pointer that I have allocate with malloc?

  - by drigoSkalWalker

  See this example! int main( int argc, char ** argv ) { int *ptr = malloc(100 * sizeof (int)); printf("sizeof(array) is %d bytes\n", sizeof(ptr)); } The printf function return only 4 bytes! What is wrong? Thanks so much!!!

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• List of All Background Images in DOM

  - by AutomaticDrone

  What's the best way to find all of the background images on a given page using javascript? The ideal end result would be an array of all of the url's.

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• How can I tell the number of replacements in a formatter string?

  - by sdanna

  Given the following method: (real method has a few more parameters, but the important ones are below...) public string DoSomething(string formatter, params string[] values) { // Do something eventually involving a call to String.Format(formatter, values); } Is there a way to tell if my values array has enough objects in it to cover the formatter, so that I can throw an exception if there aren't (short of doing the string.Format; that isn't an option until the end due to some lambda conversions)?

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