-1) If there was an error in expansion.
2) If the returned line should just be printed.
- If an error ocurred in expansion, then OUTPUT contains a descriptive
+ If an error occurred in expansion, then OUTPUT contains a descriptive
error message. */
extern int history_expand PARAMS((char *, char **));
extern int history_base;
extern int history_length;
extern int history_max_entries;
+
+extern int history_lines_read_from_file;
+extern int history_lines_written_to_file;
+
extern char history_expansion_char;
extern char history_subst_char;
extern char *history_word_delimiters;