MainArguments

Allows to easily map flags from command line input to program parameters.

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Files

MainArguments.cpp
MainArguments.h

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Functions

bool ParseArguments(ParameterList Parameters[], int argc, const char *argv[], const char ***argvEnd=NULL)

Parameters are filled with associated arguments.

The function assumes argv[0] is the program name, so it is skipped. If parsing should start from a center argument, (i.e. i >= 1) set &argv[i-1] and argc-i+1.

Parsing ends when all the arguments are parsed sucessfully or at the first argument that has no associated parameter.

If argvEnd is not NULL, the argvEnd is set to the argument that didn't parse and the function returns true.

If argvEnd is NULL, the function returns false.

struct ParameterList
        {
        const char *Switch;
        const char **Value;
        bool *Specified;
        };

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Usage

Example:

#include "MainArguments.h"

main(int argc, const char* argv[])
        const char *Filename = NULL;
        const char *TraceFilename = NULL;
        const char *ExcludeFilename = NULL;
        bool WriteExcludeList = false;
        bool NoExcludeList = false;
        bool Debug = false;
        ParameterList Parameters[] =
                {
                        {"-f",&Filename,NULL},
                        {"-tf",&TraceFilename,NULL},
                        {"-exclude+",&ExcludeFilename,&WriteExcludeList},
                        {"-exclude-",NULL,&NoExcludeList},
                        {"-exclude",&ExcludeFilename,NULL},
                        {"-debug",NULL,&Debug},
                        {NULL,NULL,NULL}
                };
        bool Status = ParseArguments(Parameters,argc,argv);
        if (!Status)
                {
                Help(argv[0]);
                return 1;
                }
        return 0;
        }