[英].Net Application Loader's Command Line Parser
I was recently working on a generic parser and gotten to the point of folding ( [...] / {...}
) management I was interested to know how the .Net args
parser works (The parser that is essentially populating the args
array in the application entry point). 我最近正在研究一个通用的解析器并且已经达到折叠(
[...] / {...}
)管理的程度我很想知道.Net args
解析器是如何工作的(解析器基本上填充了args
应用程序入口点中的数组)。
I started looking around the CLR
( mscorlib.dll
) but didn't find what is was looking for, so my question is what mechanism is used to parse these arguments, if it's a CLR Type which one it is, or if it's an un-managed P/Invoke call where it's being declared. 我开始环顾
CLR
( mscorlib.dll
),但没有找到正在寻找的东西,所以我的问题是用什么机制来解析这些参数,如果它是一个CLR类型,或者它是一个un - 被管理的P / Invoke调用它被声明的位置。
This is the Call Stack inside the main
function of a Console application: 这是Console应用程序
main
功能中的Call Stack:
Program.Main(string[] args = {string[0]}) Line 18 + 0x5 bytes C#
mscoreei.dll!6f79f5a3()
mscoree.dll!70bc7f16()
mscoree.dll!70bc4de3()
kernel32.dll!76f03677()
ntdll.dll!77c09d72()
ntdll.dll!77c09d45()
At least main(string[])
is directly called from the native code. 至少
main(string[])
是从本机代码直接调用的。 I'm still not sure that the parsing also took place inside the native code, maybe it is a managed function and it was called before main
. 我仍然不确定解析是否也发生在本机代码中,也许它是一个托管函数,它在
main
之前被调用。
Microsoft recently released the source code of the .NET Compiler Platform , so we can just take a look! 微软最近发布了.NET编译器平台的源代码,所以我们可以看一看!
It contains a class Microsoft.CodeAnalysis.CommandLineParser
with a SplitCommandLineIntoArguments
method, which is described as follows: 它包含一个带有
SplitCommandLineIntoArguments
方法的Microsoft.CodeAnalysis.CommandLineParser
类,其描述如下:
/// <summary>
/// Split a command line by the same rules as Main would get the commands.
/// </summary>
/// <remarks>
/// Rules for command line parsing, according to MSDN:
/// ...
/// </remarks>
So here's a complete C# implementation of the args
parser, conveniently available under the Apache License: 所以这里是
args
解析器的完整C#实现,可以在Apache License下方便地使用:
The .NET framework probably calls into the Windows API. .NET框架可能会调用Windows API。
There are the functions: GetCommandLine ( http://msdn.microsoft.com/en-us/library/ms683156.aspx ) and CommandLineToArgvW ( http://msdn.microsoft.com/en-us/library/ms647232.aspx ) which can be used to get and parse the command line. 有一些功能:GetCommandLine( http://msdn.microsoft.com/en-us/library/ms683156.aspx )和CommandLineToArgvW( http://msdn.microsoft.com/en-us/library/ms647232.aspx )可用于获取和解析命令行。
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