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CommandLine parameters parser

, 14 Mar 2003
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Get command line params in any order, any number, any type
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CmdLineParser /command1:argument1 /command2 /command3:longer argument /commannd4:1234

Introduction

Many applications can work with command line parameters. Usually it is a file name, for example you can call MS word with a document file name, and it will open it.

It is a useful feature. Also if you want to give more parameters it could be difficult deciding which parameter means what, which is necessary, and so on.

In this solution every parameter starts with a '/' character, the command name and the argument is separated by ':'.

For example:

CmdLineParser /file:file_name /print /option1:text with space /option2:1234

As it shows, you can use

  • command with argument
  • just command without argument like /PRINT
  • argument can contain space, any character except '/'
  • argument can be any type like text, number, BOOL, I mean any text that will be converted to your type!

Using the code

For testing, type some parameters in the project setting dialog (Alt-F7), dialog window, program arguments.

Project setting dialog (Alt-F7), dialog window

If you type the previous parameters, it reads the file name parameter, and gives an error message cause of unknown parameter:

if (!_strnicmp(command, "command", 10))
   {
   strcpy(m_file, arg);
   }
else
   if (!_strnicmp(command, "print", 10))
   ...

To convert your parameter use _strncmp which is not case sensitive, and then make your code to handle this command. To found unknown commands, if else pair work fine. You cannot use switch for strings. After you get all parameters your code can work with them!

History

It's working! Smile | :)

License

This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

A list of licenses authors might use can be found here

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About the Author

Zoltan
Web Developer Visionsoft, Best Film
Hungary Hungary
MCP ASP.NET Web Client Developer

Comments and Discussions

 
QuestionWhat I was looking for. PinmemberOnineko24-Apr-06 6:28 
JokeRe: What I was looking for. PinmemberMember 327217025-May-11 11:33 
QuestionHow can I avoid contradict constant Pinmemberwuwenguo21-Apr-03 2:13 
Question2.33? PinmemberLarry Antram18-Mar-03 9:10 
AnswerRe: 2.33? PinmemberZoltan18-Mar-03 23:26 
GeneralPoor Pinmemberdog_spawn15-Mar-03 12:18 
GeneralRe: Poor PinmemberZoltan15-Mar-03 23:28 
GeneralRe: Poor Pinmemberdog_spawn16-Mar-03 10:11 
You are polite, I like that Smile | :)
 
However, forgive me for pointing out the obvious, but why post an article if it is of no use? That is called spam...
 
This site has some amazing articles. I love codeproject, simple as that. But it is annoying to have to go through lots of bad articles.
GeneralRe: Poor? If works, is good ;) Pinmember[ducted]19-Mar-03 22:10 

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