added end_date and function to print it accordingly

src/date_time_handling.c

@@ -1,5 +1,6 @@
 #include "date_time_handling.h"
 #include <stdio.h>
+#include <stdlib.h>
 #include <time.h>
 #include <string.h>
 
@@ -15,12 +16,31 @@ void get_date(char buffer[]) {
 void pretty_print_date_time(char date_time[]) {
 	char *date = strtok(date_time, "T");
 	char *time = strtok(NULL, "T");
+	if (date == NULL) {
+		printf ("\nError: date points to NULL!\n");
+		exit(1);
+	}
 	printf ("%c%c%c%c-", date[0], date[1], date[2], date[3]);
 	printf ("%c%c-", date[4], date[5]);
 	printf ("%c%c", date[6], date[7]);
+	
 	if (time != NULL) {
 		printf (" %c%c:", time[0], time[1]);
 		printf ("%c%c:", time[2], time[3]);
 		printf ("%c%c", time[4], time[5]);
 	}
 }
+
+void print_end_date(char end_date[]) {
+	// end_date is all day event
+	if (strlen(end_date) == 8)
+		return;
+
+	strtok(end_date, "T");
+	char *time = strtok(NULL, "T");
+
+	printf (" - %c%c:", time[0], time[1]);
+	printf ("%c%c:", time[2], time[3]);
+	printf ("%c%c", time[4], time[5]);
+}
+	

src/date_time_handling.h

@@ -3,3 +3,4 @@
 
 void get_date(char buffer[]);
 void pretty_print_date_time(char date_time[]);
+void print_end_date(char end_date[]);

src/list_handling.c

@@ -6,27 +6,29 @@
 
 void print_list(struct event *head) {
   while (head != NULL) {
-    printf("%s\n", head->date);
+    printf("%s\n", head->start_date);
+    printf("%s\n", head->end_date);
     printf("%s\n", head->summary);
     head = head->next;
   }
 }
 
-void sorted_insert(struct event** head, char date[], char summary[]) {
+void sorted_insert(struct event** head, char start_date[], char end_date[], char summary[]) {
 	struct event *new_node = malloc(sizeof(struct event));
-	strcpy((*new_node).date, date);
+	strcpy((*new_node).start_date, start_date);
+	strcpy((*new_node).end_date, end_date);
 	strcpy((*new_node).summary, summary);
 
-	if (*head == NULL || strcmp((*head)->date, new_node->date) >= 0) {
+	if (*head == NULL || strcmp((*head)->start_date, new_node->start_date) >= 0) {
 		new_node->next = *head;
 		*head = new_node;
 	}
 	else {
 		// Locate the node before the point of insertion
 		struct event* current = *head;
-		while (current->next!=NULL && strcmp(current->next->date, new_node->date) < 0) {
+		while (current->next!=NULL && strcmp(current->next->start_date, new_node->start_date) < 0)
 			current = current->next;
-	}
+	
 		new_node->next = current->next;
 		current->next = new_node;
 	}
@@ -44,10 +46,11 @@ void free_list(struct event *head)
     }
 }
 
-void print_upcoming(struct event *head, char current_date[]) {
+void print_upcoming(struct event *head, char current_start_date[]) {
 	while (head != NULL) {
-		if (strcmp(head->date, current_date) >= 0) {
+		if (strcmp(head->start_date, current_start_date) >= 0) {
-			pretty_print_date_time(head->date);
+			pretty_print_date_time(head->start_date);
+			print_end_date(head->end_date);
 			printf("\n%s\n", head->summary);
 		}
 	head = head->next;

src/list_handling.h

@@ -2,11 +2,12 @@
 
 struct event {
   char summary[256];
-  char date[256];
+  char start_date[256];
+  char end_date[256];
   struct event *next;
 };
 
 void print_list(struct event *head);
-void sorted_insert(struct event **head, char date[], char summary[]);
+void sorted_insert(struct event **head, char start_date[], char end_date[], char summary[]);
 void free_list(struct event *head);
 void print_upcoming(struct event *head, char current_date[]);

src/main.c

@@ -32,31 +32,42 @@ int main(int argc, char **argv) {
 	get_date(current_date);
 	printf ("Current date and time: ");
 	pretty_print_date_time(current_date);
-	printf ("\n");
+	printf ("\n\n");
 
-	char date[256] = "";
+	char start_date[256] = "";
+	char end_date[256] = "";
 	char summary[256] = "";
 
 	while(read_until_nl(myfd, my_line)) {
 		if (strncmp(my_line, "BEGIN:VEVENT", 12) == 0) {
 			memset(my_line, '\0', sizeof(my_line));
-			// go to DTSTART, but dont write to a variable
+			// put DTSTART into variable
 			seek_string_a(myfd, "DTSTART");
 			read_until_string(myfd, my_line, "DTEND");
 			remove_whitespace(my_line);
 			cut_string(my_line, ':', 1);
-			strcpy(date, my_line);
+			strcpy(start_date, my_line);
 
 			memset(my_line, '\0', sizeof(my_line));
 
+			// put DTEND into variable
+			read_until_string(myfd, my_line, "SEQUENCE");
+			remove_whitespace(my_line);
+			cut_string(my_line, ':', 1);
+			strcpy(end_date, my_line);
+
+			memset(my_line, '\0', sizeof(my_line));
+
+			// put summary into variable
 			seek_string_a(myfd, "SUMMARY:");
 			read_until_string(myfd, my_line, "TRANSP:");
 			remove_nl_and_cr(my_line);
 			strcpy(summary, my_line);
 			memset(my_line, '\0', sizeof(my_line));
 
-			sorted_insert(&head, date, summary);
+			sorted_insert(&head, start_date, end_date, summary);
-			memset(date, '\0', sizeof(date));
+			memset(start_date, '\0', sizeof(start_date));
+			memset(end_date, '\0', sizeof(end_date));
 			memset(summary, '\0', sizeof(summary));
 		}
 		memset(my_line, '\0', sizeof(my_line));