Limiting the number of loaded items in the positions history.

(So that most likely not more than two hundred plus a handful
will be written out.  This was the easiest to implement.)

See https://lists.gnu.org/archive/html/nano-devel/2016-01/msg00050.html.


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@5571 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

 2016-01-17  Benno Schulenberg  <bensberg@justemail.net>
 	* src/global.c: Fix typo in #ifndef symbol.  Reported by Frank.
 	* doc/syntax/nanorc.nanorc: Remove '+' as only one menu is allowed.
+	* src/files.c (load_poshistory): Limit the number of loaded items.
 
 2016-01-17  Mike Frysinger  <vapier@gentoo.org>
 	* doc/syntax/nanorc.nanorc: Allow inline comments with key bindings.

src/files.c

@@ -3245,7 +3245,7 @@ void load_poshistory(void)
     } else {
 	char *line = NULL, *lineptr, *xptr;
 	size_t buf_len = 0;
-	ssize_t read;
+	ssize_t read, count = 0;
 	poshiststruct *record_ptr = NULL, *newrecord;
 
 	/* Read and parse each line, and store the extracted data. */
@@ -3271,6 +3271,10 @@ void load_poshistory(void)
 		record_ptr->next = newrecord;
 
 	    record_ptr = newrecord;
+
+	    /* Impose a limit, so the file will not grow indefinitely. */
+	    if (++count > 200)
+		position_history = position_history->next;
 	}
 	fclose(hist);
 	free(line);