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  1. #16
    VictorN's Avatar
    VictorN is offline Super Moderator Power Poster
    Join Date
    Jan 2003
    Location
    Hanover Germany
    Posts
    20,396

    Re: Parsing CL arguments and Function call queue

    Again, if you want to do something (parse command line arguments) a non-standard way then you have to create your own non-standard (parsing) mechanism!
    What will you use to parse (some STL or Win API or C-runtime or some other functions/methods) is up to you!
    Victor Nijegorodov

  2. #17
    2kaud's Avatar
    2kaud is offline Super Moderator Power Poster
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    Dec 2012
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    England
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    Re: Parsing CL arguments and Function call queue

    Have a look at this. IT will parse commands of the form cmnd a,b,c d,e,f which is what I think you're after.
    Code:
    #include <vector>
    #include <iostream>
    #include <string>
    #include <algorithm>
    using namespace std;
    
    const char separ = ',';
    
    typedef vector<string> VSTR;
    typedef vector<VSTR> VVEC;
    
    int main(int argc, char* argv[])
    {
    VVEC	vargs;
    
    	for (int a = 1; a < argc; a++) {
    		string line = argv[a];
    
    		VSTR varg;
    
    		for (size_t st = 0, pos = line.find_first_not_of(' '), last = 0; (last += (pos = line.find(separ, st)) == string::npos) < 2; st = pos + 1, last += (pos == string::npos))
    			varg.push_back(line.substr((st = line.find_first_not_of(' ', st)), line.find_last_not_of(' ', pos - 1) - st + 1));
    
    		vargs.push_back(varg);
    	}
    
    	for (int a = 0; a < vargs.size(); a++) {
    		copy(vargs[a].begin(), vargs[a].end(), ostream_iterator<string>(cout, " "));
    		cout << endl;
    	}
    
    	return 0;
    }
    An example is
    Code:
    c:\MyProgs>test12 qw,as,df er,ty,ui,op
    qw as df
    er ty ui op
    All advice is offered in good faith only. All my code is tested (unless stated explicitly otherwise) with the latest version of Microsoft Visual Studio (using the supported features of the latest standard) and is offered as examples only - not as production quality. I cannot offer advice regarding any other c/c++ compiler/IDE or incompatibilities with VS. You are ultimately responsible for the effects of your programs and the integrity of the machines they run on. Anything I post, code snippets, advice, etc is licensed as Public Domain https://creativecommons.org/publicdomain/zero/1.0/ and can be used without reference or acknowledgement. Also note that I only provide advice and guidance via the forums - and not via private messages!

    C++23 Compiler: Microsoft VS2022 (17.6.5)

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