[tracker/parser-libunistring-review] Avoid critical after last word processed

[Aleksander Morgado <aleksm src gnome org>]

commit b6b799bc44d812e6a0b3090082eee9d87dbb4441
Author: Aleksander Morgado <aleksander lanedo com>
Date:   Thu Apr 29 15:33:54 2010 +0200

    Avoid critical after last word processed

 src/libtracker-fts/tracker-parser-glib.c         |    3 ++-
 src/libtracker-fts/tracker-parser-libunistring.c |    3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/src/libtracker-fts/tracker-parser-glib.c b/src/libtracker-fts/tracker-parser-glib.c
index de7ba4e..b747a7c 100644
--- a/src/libtracker-fts/tracker-parser-glib.c
+++ b/src/libtracker-fts/tracker-parser-glib.c
@@ -617,7 +617,8 @@ tracker_parser_next (TrackerParser *parser,
 			str = parser->word;
 		}
 
-		if (parser->enable_stop_words &&
+		if (str &&
+		    parser->enable_stop_words &&
 		    tracker_language_is_stop_word (parser->language, str)) {
 			*stop_word = TRUE;
 		} else {
diff --git a/src/libtracker-fts/tracker-parser-libunistring.c b/src/libtracker-fts/tracker-parser-libunistring.c
index 12d1951..b158c03 100644
--- a/src/libtracker-fts/tracker-parser-libunistring.c
+++ b/src/libtracker-fts/tracker-parser-libunistring.c
@@ -416,7 +416,8 @@ tracker_parser_next (TrackerParser *parser,
 		str = parser->word;
 	}
 
-	if (parser->enable_stop_words &&
+	if (str &&
+	    parser->enable_stop_words &&
 	    tracker_language_is_stop_word (parser->language, str)) {
 		*stop_word = TRUE;
 	} else {