# Setopt
The reverse of getopt. It is standard to create a command from an internal state (object). It is a replacement for usual string concatenation techniques, providing argument order consistency and less bug-prone error handling.

## Docs
### C
Implemented as a header only library.

	#include "setopt.h"

	/* Struct to define long option - identifier pairs + flags;
		Straight from getopt
	*/
	struct option {
		const char *name;
		int         has_arg;
		int        *flag;
		int         val;
	};

	int optc,		// number of arguments successfuly added
						reset on each invocation
		optred,		/* not implemented */
		opterrno;	// non zero if setopt encountered an error
						must be reset manually

	char* setopt(const char* optstring, std::unordered_map<char, std::string> argv);
	char* setopt_long(char* optstring, map<string, string> argv, map<string, string> argv_long);    /* Not implemented */
	char* setopt_long_only(char* optstring, map<string, string> argv_long);                         /* Not implemented */



**optstring:** Complies with GNU getopt's optstring. That is:
*optstring  is  a  string  containing the legitimate option characters. A legitimate option character is any visible one byte ascii(7) character (for which isgraph(3) would return nonzero) that is not '-', ':', or ';'.  If such a character is followed by a colon, the option requires an argument [...]  Two colons mean an option takes an optional arg [...]*