Untitled

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

#define MAX 100

struct Node {
    char url[MAX];
    struct Node *prev, *next;
} *head = NULL, *curr = NULL;

// ➕ Visit new page
void visit() {
    char url[MAX];
    getchar();
    printf("Enter URL: ");
    fgets(url, MAX, stdin);
    url[strcspn(url, "\n")] = '\0';
    struct Node *n = malloc(sizeof(struct Node));
    strcpy(n->url, url);
    n->prev = curr;
    n->next = NULL;
    if (curr) curr->next = n;
    else head = n;
    curr = n;
    printf("✅ Visited: %s\n", curr->url);
}

// ⬅️ Go back x steps
void back() {
    int x, c = 0;
    if (!curr) return printf("No pages!\n"), (void)0;
    printf("Steps to go back: ");
    scanf("%d", &x);
    while (curr->prev && c < x) curr = curr->prev, c++;
    printf("🔙 Back %d step(s): %s\n", c, curr->url);
}

// ➡️ Go forward x steps
void forward() {
    int x, c = 0;
    if (!curr) return printf("No pages!\n"), (void)0;
    printf("Steps to go forward: ");
    scanf("%d", &x);
    while (curr->next && c < x) curr = curr->next, c++;
    printf("🔜 Forward %d step(s): %s\n", c, curr->url);
}

// 👁️ Show current page
void showCurr() {
    if (curr) printf("🌐 Current: %s\n", curr->url);
    else printf("No page visited yet!\n");
}

// 🧭 Show full history
void showHist() {
    if (!head) return printf("History empty!\n"), (void)0;
    printf("\n📜 Browser History:\n");
    for (struct Node* t = head; t; t = t->next)
        printf("%s%s\n", t == curr ? "-> " : "   ", t->url);
}

// 🏁 Main menu
int main() {
    int ch;
    printf("🌍 Browser History using Doubly Linked List\n");
    while (1) {
        printf("\n1.Visit  2.Back  3.Forward  4.Current  5.History  6.Exit\nEnter choice: ");
        scanf("%d", &ch);
        switch (ch) {
            case 1: visit(); break;
            case 2: back(); break;
            case 3: forward(); break;
            case 4: showCurr(); break;
            case 5: showHist(); break;
            case 6: printf("👋 Exiting...\n"); exit(0);
            default: printf("❌ Invalid!\n");
        }
    }
}