Linux-Learning/menu2.c at master · bitcpf/Linux-Learning · GitHub

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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

char *menu[] ={
	"a - add new record",
	"d - delete record",
	"q - quit",
	NULL,

};

int getchoice(char *greet, char *choices[]);

int main()
{
	int choice = 0;

	if(!isatty(fileno(stdout))) {
		fprintf(stderr,"You are not a terminal!\n");
		exit(1);
	}


	do{
		choice=getchoice("Please select an action",menu);
		printf("You have chosen: %c\n",choice);

	}
	while(choice !='q');
	exit(0);
}


int getchoice(char *greet, char *choices[])
{
	int chosen =0;
	int selected;
	char **option;
	do
	{
		printf("Choice: %s\n",greet);
		option=choices;
		while(*option){
			printf("%s\n",*option);
			option++;
		}
		do{
			selected=getchar();
		}while(selected == '\n');
		option=choices;
		while(*option){
			if(selected == *option[0]){
				chosen =1;
				break;
			}
			option++;
		}
		if(!chosen){
			printf("Incorrect choice, select again\n");
		}
	} while(!chosen);
	return selected;


}