[tracker] SPARQL: Report syntax error on single ^ in query

[Jürg Billeter <juergbi src gnome org>]

commit 63ae7a6fe1c2d63ed10738891c4da745dd6be07a
Author: Jürg Billeter <j bitron ch>
Date:   Mon Nov 9 11:57:40 2009 +0100

    SPARQL: Report syntax error on single ^ in query

 src/libtracker-data/tracker-sparql-scanner.vala |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/libtracker-data/tracker-sparql-scanner.vala b/src/libtracker-data/tracker-sparql-scanner.vala
index e3a5429..bc39ca7 100644
--- a/src/libtracker-data/tracker-sparql-scanner.vala
+++ b/src/libtracker-data/tracker-sparql-scanner.vala
@@ -683,6 +683,8 @@ public class Tracker.SparqlScanner : Object {
 				if (current < end - 2 && current[0] == current[1]) {
 					type = SparqlTokenType.DOUBLE_CIRCUMFLEX;
 					current += 2;
+				} else {
+					throw new SparqlError.PARSE ("%d.%d: syntax error, unexpected character", line, column);
 				}
 				break;
 			case '_':