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How to validate an email address in PHP
...1\\x23-\\x5B\\x5D-\\x7F]|(?:\\x5C[\\x00-\\x7F]))*\\x22)))*@(?:(?:(?!.*[^.]{64,})(?:(?:(?:xn--)?[a-z0-9]+(?:-+[a-z0-9]+)*\\.){1,126}){1,}(?:(?:[a-z][a-z0-9]*)|(?:(?:xn--)[a-z0-9]+))(?:-+[a-z0-9]+)*)|(?:\\[(?:(?:IPv6:(?:(?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}){7})|(?:(?!(?:.*[a-f0-9][:\\]]){7,})(?:[a-f0-9]{...
How To: Best way to draw table in console app (C#)
...n now find and improve the following code in github!
I wrote this class based on some ideas here. The columns width is optimal, an it can handle object arrays with this simple API:
static void Main(string[] args)
{
IEnumerable<Tuple<int, string, string>> authors =
new[]
{
...
Any reason to clean up unused imports in Java, other than reducing clutter?
...lain this. After attempting to increase memory settings (this is running a 64 bit JVM on a 64 bit CentOS!) to something well beyond where the clients could compile, I examined the checkins one by one.
There was an improper import that a developer had used and abandoned (they used the class, auto-im...
Error message 'Unable to load one or more of the requested types. Retrieve the LoaderExceptions prop
... }
string errorMessage = sb.ToString();
//Display or log the error based on your application.
}
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Are (non-void) self-closing tags valid in HTML5?
...th most of the inconveniences of XML), while it makes it harder to use XML-based tools (e.g. template tools or various processors). Even from a generation point of view, it would seem that <object data="..." /> and <img src="..."></src> are not OK, while <object data="...">&l...
do { … } while (0) — what is it good for? [duplicate]
...n are fairly rare, but they do exist. One which springs to mind is a menu-based console application:
do {
char c = read_input();
process_input(c);
} while (c != 'Q');
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Difference between a Structure and a Union
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@user12345613 unions can be used as a sort of base class for structs. You can emulate an OO hierarchy using unions of structs
– Morten Jensen
Mar 12 '13 at 21:57
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Is there a way to access an iteration-counter in Java's for-each loop?
...r this is that the for-each loop internally does not have a counter; it is based on the Iterable interface, i.e. it uses an Iterator to loop through the "collection" - which may not be a collection at all, and may in fact be something not at all based on indexes (such as a linked list).
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How to determine the memory footprint (size) of a variable?
... not definate. It can depend apparently on the php version and possibly on 64/32 bit.
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How to install a specific version of a ruby gem?
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ruby | 1:1.9.3 | http://ftp.uk.debian.org/debian/ wheezy/main amd64 Packages
ruby | 4.5 | http://ftp.uk.debian.org/debian/ squeeze/main amd64 Packages
Then install it:
$ sudo apt-get install ruby=1:1.9.3
To check what's the current version, run:
$ gem --version # Check f...