FetchNaturalChunk() needs to use isspace() just as NaturalCompare does

when retrieving number chunks. Otherwise we wind up with an infinite
loop if a number chunk is preceded by another whitespace char such as
\t. Fixes a hang observed on Clemens' mail store.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39011 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/kits/tracker/Utilities.h

@@ -212,9 +212,9 @@ FetchNaturalChunk(natural_chunk& chunk, const char* source)
 		return pos;
 	}
 	
-	// skip leading zeros and spaces
+	// skip leading zeros and whitespace characters
 	int32 skip = 0;
-	while (source[0] == '0' || source[0] == ' ') {
+	while (source[0] == '0' || isspace(source[0])) {
 		source++;
 		skip++;
 	}