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Using .NET, how can you find the mime type of a file based on the file signature not the extension
...will stop this mischievous behavior from happening.
Here is an example in C#:
public class MimeType
{
private static readonly byte[] BMP = { 66, 77 };
private static readonly byte[] DOC = { 208, 207, 17, 224, 161, 177, 26, 225 };
private static readonly byte[] EXE_DLL = { 77, 90 };
...
How do you detect Credit card type based on number?
...invalid";
}
Here is the function to check Credit card type using Regex , c#
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C++ IDE for Linux? [closed]
... use C++ code completion even in Visual Studio because (compared to VB and C#) it wasn't good enough. I don't use it often now but nevertheless, GVIM has native code completion support for C++. Combined with the ctags library and a plug-in like taglist this is almost an IDE.
Actually, what got me s...
Database, Table and Column Naming Conventions? [closed]
... Oracle's database conventions say plural table names. Just think how many c# developers hated the "var" keyword when it was introduced, now its the widely accepted way to define variables.
– Jason
Apr 10 '12 at 16:39
...
How do emulators work and how are they written? [closed]
... an emulation platform for .NET, written in Nemerle and recompiles code to C# on the fly. Disclaimer: This is my project, so pardon the shameless plug.
BSnes -- An awesome SNES emulator with the goal of cycle-perfect accuracy.
MAME -- The arcade emulator. Great reference.
6502asm.com -- This is a...
Parsing JSON using Json.net
...is there a way to convert name value pairs in a JSON string to an existing C# variable type (e.g. Array, or Dictionary?) such that one would not have to create specific/custom classes? In my case the JSON string would be generated in Ruby/Rails...
– Greg
Dec 2...
Equation (expression) parser with precedence?
...han Haskell results in loads of syntactic cruft, by the way. I did this in C# and it works quite well but it is not so pretty and succinct.)
Notes:
1 Richard Stallman says, in Why you should not use Tcl
The principal lesson of Emacs is that
a language for extensions should not
be a mere "e...
What is the difference between a strongly typed language and a statically typed language?
...clear one with today's VMs running dynamic languages. Technically Java and C# are both compiled twice (JIT) and both do some type analysis. A language like Javascript running in .NET vm might be more Typesafe because of the VM.
– Adam Gent
Apr 24 '10 at 21:06
...
Convert light frequency to RGB?
...atrices and different kinds of gamma correction may be used.
Below is the C# code I came up with recently. It uses linear interpolation over the "CIE 1964 standard observer" table and sRGB matrix + gamma correction.
static class RgbCalculator {
const int
LEN_MIN = 380,
LEN_M...
Various ways to remove local Git changes
...re-rule instead of repeatedly cleaning - e.g. for the bin/obj folders in a C# project, which you would usually want to exclude from your repo to save space, or something like that.
The -f (force) option will also remove files, that are not tracked and are also being ignored by git though ignore-rul...