#include <stdbool.h>
#include <stddef.h>
+#include "libpspp/str.h"
/* An unordered array of strings.
void string_array_shrink (struct string_array *);
void string_array_sort (struct string_array *);
+void string_array_uniq (struct string_array *);
+void string_array_parse (struct string_array *, struct substring string,
+ struct substring delimiters);
char *string_array_join (const struct string_array *, const char *separator);
/* Macros for conveniently iterating through a string_array, e.g. to print all