136 lines
3.2 KiB
C++
136 lines
3.2 KiB
C++
#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <alloca.h>
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#include "linked-list.h"
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static SllNode* list = NULL;
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/* ******************************************** */
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static void printMenu(void)
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{
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printf("\n"
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"+===============================================+\n"
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"| Manipulation functions |\n"
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"+===============================================+\n"
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"| 0 --- quit |\n"
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"| 1 --- insert new student |\n"
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"| 2 --- print list |\n"
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"| 3 --- remove student, through number |\n"
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"| 4 --- get student's name, given the number |\n"
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"| 5 --- load students from file |\n"
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"| 6 --- destroy list elements |\n"
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"+===============================================+\n");
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}
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/* ******************************************** */
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/* menu handling functions */
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/* ******************************************** */
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void menuChoiceDestroy()
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{
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list = sllDestroy(list);
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}
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/* ******************************************** */
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void menuChoiceInsert()
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{
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uint32_t nmec;
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printf("Insert nmec: ");
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scanf("%u", &nmec);
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char name[80];
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printf("Insert name: ");
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scanf(" %[^\n]", name);
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list = sllInsert(list, nmec, name);
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}
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/* ******************************************** */
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void menuChoicePrint()
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{
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sllPrint(list, stdout);
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}
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/* ******************************************** */
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void menuChoiceRemove()
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{
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uint32_t nmec;
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printf("Insert nmec: ");
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scanf("%u", &nmec);
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list = sllRemove(list, nmec);
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}
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/* ******************************************** */
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void menuChoiceSearch()
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{
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uint32_t nmec;
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printf("Insert nmec: ");
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scanf("%u", &nmec);
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const char *name = sllGetName(list, nmec);
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printf("Name: %s\n", name);
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}
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/* ******************************************** */
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void menuChoiceLoad()
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{
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char fname[80];
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printf("Insert file name: ");
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scanf(" %[^\n]", fname);
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FILE *fin = fopen(fname, "r");
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if (fin == NULL)
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{
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printf("Fail opening file\n");
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return;
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}
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bool ok;
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list = sllLoad(list, fin, &ok);
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if (!ok)
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{
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printf("Error reading file\n");
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return;
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}
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}
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/* ******************************************** */
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/* The main function */
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int main()
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{
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bool end = false;
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while (not end)
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{
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/* print menu */
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printMenu();
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/* get user menu option and validate it */
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uint32_t op = 0;
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printf("Your command: ");
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scanf("%u", &op);
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/* call processing function based on option */
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switch (op)
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{
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case 0: end = true; break;
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case 1: menuChoiceInsert(); break;
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case 2: menuChoicePrint(); break;
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case 3: menuChoiceRemove(); break;
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case 4: menuChoiceSearch(); break;
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case 5: menuChoiceLoad(); break;
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case 6: menuChoiceDestroy(); break;
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default: printf("Unkown option\n"); break;
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}
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}
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/* destroy list before quitting */
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list = sllDestroy(list);
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return 0;
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} /* end of main */
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