Add sort_entries, make filter_entries(a, 0) set a.m[i]=true.

- sorting the entries is just better UI
- filter_entries() is used to initialize a.ms to a.n, but it can lead to
weird things if all a.m members aren't also initialized

browser.c

@@ -39,6 +39,7 @@ int main()
 
 	struct str_array entries = { 0 };
 	read_entries_from_stream(&entries, delim, stdin);
+	sort_entries(&entries);
 	filter_entries(&entries, NULL);
 
 	int tmp_fd;

string-array.c

@@ -32,6 +32,9 @@ void filter_entries(struct str_array *a, const struct str_array *m)
 {
 	if (!m) {
 		a->ms = a->n;
+		for (size_t i = 0; i < a->n; i++) {
+			a->m[i] = true;
+		}
 		return;
 	}
 
@@ -65,6 +68,17 @@ void filter_entries(struct str_array *a, const struct str_array *m)
 	}
 }
 
+#define VOIDTOCHAR(x) (*(const char **)x)
+static int str_a_item_cmp(const void *a, const void *b)
+{
+	return strcmp(VOIDTOCHAR(a), VOIDTOCHAR(b));
+}
+
+void sort_entries(struct str_array *a)
+{
+	qsort(a->v, a->n, sizeof(*a->v), str_a_item_cmp);
+}
+
 void print_entries(const struct str_array *a)
 {
 	for (size_t i = 0; i < a->n; i++) {

string-array.h

@@ -33,6 +33,7 @@ static inline char *get_entry_if_match(const struct str_array *a, size_t i)
 void add_entry(struct str_array *, char *);
 char *pop_entry(struct str_array *);
 void filter_entries(struct str_array *, const struct str_array *);
+void sort_entries(struct str_array *);
 void print_entries(const struct str_array *);
 
 #endif