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Objective-C for Windows
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Sorry about not answering your question on the group, to summarize: The APSL sucks and both the runtime and CF are under them.
– Christopher Lloyd
Nov 11 '09 at 16:33
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Validate that a string is a positive integer
...o)
(?:...|...): Allow one of these two options (without creating a capture group):
(0|...): Allow 0 on its own...
(...|[1-9]\d*): ...or a number starting with something other than 0 and followed by any number of decimal digits.
$: Match end of string.
If you want to disallow 0 (because it's not...
CSS selector for a checked radio button's label
... the box? What script will remove this class if another radio in the same group is selected? It gets too complicated really quick. I want to use the browser's built in form+css functionality because it will work every time.
– Stephen
Sep 16 '09 at 9:20
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ICollection Vs List in Entity Framework
... Normal Linq operations do not add or mutate things, they simply filter, group, project, etc. Forward-only, read-only sequences are all that's necessary to support those operations. When you have a Linq provider such as Entity Framework that deals with data persistence, the ability to Add is a sub...
How to make the 'cut' command treat same sequental delimiters as one?
... field: 1
4th field: 2
4th field: 3
4th field: 4
sed
This catches three groups of spaces and no spaces with ([^ ]*[ ]*){3}. Then, it catches whatever coming until a space as the 4th field, that it is finally printed with \1.
$ sed -r 's/^([^ ]*[ ]*){3}([^ ]*).*/\2/' a
1
2
3
4
...
Curious null-coalescing operator custom implicit conversion behaviour
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If you take a look at the generated code for the Left-grouped case it actually does something like this (csc /optimize-):
C? first;
A? atemp = a;
B? btemp = (atemp.HasValue ? new B?(a.Value) : b);
if (btemp.HasValue)
{
first = new C?((atemp.HasValue ? new B?(a.Value) : b).V...
Why is creating a new process more expensive on Windows than Linux?
...ility database. This step causes enough overhead that Microsoft provides a group policy option to disable the compatibility engine on WS2003 for performance reasons.
The Win32 runtime libraries (kernel32.dll, etc.) also do a lot of registry reads and initialization on startup that don't apply to UN...
What framework for MVVM should I use? [closed]
...e MVVM framework, and I've had input into others through the WPF Disciples group, so I'm a little bit biased. Saying that, here goes:
Microsofts MVVM Toolkit - this is still very much in the alpha stages. When it was originally released, it took a bit of a savaging from the Disciples because of wha...
Why do we need tuples in Python (or any immutable data type)?
...t is a list of the same kind of items: files, names, objects. Tuples are a grouping of different types of objects. They have different uses, and many Python coders abuse lists for what tuples are meant for.
Please don't.
Edit:
I think this blog post explains why I think this better than I did: ...
PHP: How to generate a random, unique, alphanumeric string for use in a secret link?
...al form, a UUID is represented by 32 hexadecimal digits, displayed in five groups separated by hyphens, in the form 8-4-4-4-12 for a total of 36 characters (32 alphanumeric characters and four hyphens).
function generate_uuid() {
return sprintf( '%04x%04x-%04x-%04x-%04x-%04x%04x%04x',
m...