Merge pull request #10 from bocaletto-luca/test

Create 19_BasicChatBot.c

Author: bocaletto-luca

Example/19_BasicChatBot.c

@@ -0,0 +1,69 @@
+/*
+ * Project 19: Basic Chatbot Program
+ * Author: Bocaletto Luca
+ * Date: 2025-06-22
+ * GitHub: bocaletto-luca
+ *
+ * Description:
+ * This program implements a simple text-based chatbot that listens to user input,
+ * processes it using basic pattern matching, and responds with predetermined answers.
+ * It continues the conversation until the user types "bye" to exit the chat.
+ *
+ * Key Concepts:
+ * - String parsing and pattern matching (using functions like strcmp() and strstr()).
+ * - Loop constructs for sustaining interactive conversation.
+ * - Conditional logic to select appropriate responses based on input.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <ctype.h>
+
+int main(void) {
+    char input[256];  // Buffer to store user input.
+
+    // Welcoming the user.
+    printf("Chatbot: Hello, I'm your friendly chatbot. Type 'bye' to exit.\n");
+
+    // Main conversation loop.
+    while (1) {
+        printf("You: ");
+        // Read user input from the terminal.
+        if (fgets(input, sizeof(input), stdin) == NULL) {
+            // Handle potential input errors.
+            printf("Chatbot: Error reading input. Exiting.\n");
+            break;
+        }
+        
+        // Remove the trailing newline character, if present.
+        input[strcspn(input, "\n")] = '\0';
+
+        // Convert the input to lowercase for easier matching.
+        for (int i = 0; input[i] != '\0'; i++) {
+            input[i] = tolower(input[i]);
+        }
+
+        // Check if the user wants to exit the conversation.
+        if (strcmp(input, "bye") == 0) {
+            printf("Chatbot: Goodbye! Have a nice day.\n");
+            break;
+        }
+
+        // Respond based on pattern matching using strstr() and strcmp().
+        if (strstr(input, "hello") != NULL) {
+            printf("Chatbot: Hello there! How can I help you today?\n");
+        } else if (strstr(input, "how are you") != NULL) {
+            printf("Chatbot: I'm just a program, but I'm doing fine! How about you?\n");
+        } else if (strstr(input, "what is your name") != NULL) {
+            printf("Chatbot: I'm a basic chatbot created by Bocaletto Luca.\n");
+        } else if (strstr(input, "weather") != NULL) {
+            printf("Chatbot: I don't have real-time weather data, but it's always a good day for coding!\n");
+        } else {
+            // Default response for unrecognized inputs.
+            printf("Chatbot: I'm not sure I understand. Can you please rephrase your question?\n");
+        }
+    }
+
+    return 0;
+}