* Implemented missing date parsing; queries like "last_modified > %-5 minutes%"

are now working as they should.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31711 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/os/storage/Query.h

@@ -99,6 +99,7 @@ private:
 								bool deleteOnError);
 			status_t		_SetPredicate(const char* expression);
 			status_t		_EvaluateStack();
+			void			_ParseDates(BString& parsedPredicate);
 
 	// FBC
 	virtual	void			_QwertyQuery1();

src/kits/storage/Query.cpp

@@ -518,8 +518,11 @@ BQuery::Fetch()
 	if (!fPredicate || fDevice < 0)
 		return B_NO_INIT;
 
-	fQueryFd = _kern_open_query(fDevice, fPredicate, strlen(fPredicate),
+	BString parsedPredicate;
-		fLive ? B_LIVE_QUERY : 0, fPort, fToken);
+	_ParseDates(parsedPredicate);
+
+	fQueryFd = _kern_open_query(fDevice, parsedPredicate.String(),
+		parsedPredicate.Length(), fLive ? B_LIVE_QUERY : 0, fPort, fToken);
 	if (fQueryFd < 0)
 		return fQueryFd;
 
@@ -761,6 +764,41 @@ BQuery::_EvaluateStack()
 }
 
 
+void
+BQuery::_ParseDates(BString& parsedPredicate)
+{
+	const char* start = fPredicate;
+	const char* pos = start;
+	bool quotes = false;
+
+	while (pos[0]) {
+		if (pos[0] == '\\') {
+			pos++;
+			continue;
+		}
+		if (pos[0] == '"')
+			quotes = !quotes;
+		else if (!quotes && pos[0] == '%') {
+			const char* end = strchr(pos + 1, '%');
+			if (end == NULL)
+				continue;
+
+			parsedPredicate.Append(start, pos - start);
+			start = end + 1;
+
+			// We have a date string
+			BString date(pos + 1, start - 1 - pos);
+			parsedPredicate << parsedate(date.String(), time(NULL));
+
+			pos = end;
+		}
+		pos++;
+	}
+
+	parsedPredicate.Append(start, pos - start);
+}
+
+
 // FBC
 void BQuery::_QwertyQuery1() {}
 void BQuery::_QwertyQuery2() {}