add -f - featur to wcclparser to parse a mulitline query from stdin

wcclparser/main.cpp

@@ -185,7 +185,7 @@ int main(int argc, char** argv)
 			("position,p", value(&position),
 			 "Position in the sentence to use, 'all' iterates through the sentence\n")
 			("query-file,f", value(&query_load),
-			 "Run query from file (disables interactive mode)\n")
+			 "Run query from file (disables interohaiactive mode) (- is stdin)\n")
 			("query,Q", value(&query),
 			 "Query to run (disables interactive mode)\n")
 			("quiet,q", value(&quiet)->zero_tokens(),
@@ -237,15 +237,19 @@ int main(int argc, char** argv)
 			process_line(query, parser, sc, position == "all", dump_variables);
 			return 0;
 		} else if (!query_load.empty()) {
-			std::ifstream qf(query_load.c_str());
-			if (qf.good()) {
-				std::stringstream ss;
-				ss << qf.rdbuf();
-				process_line(ss.str(), parser, sc, position == "all", dump_variables);
-				return 0;
+			std::stringstream ss;
+			if (query_load == "-") {
+				ss << std::cin.rdbuf();
 			} else {
-				throw Wccl::FileNotFound(sentence_load, "", "Query file");
+				std::ifstream qf(query_load.c_str());
+				if (qf.good()) {
+					ss << qf.rdbuf();
+				} else {
+					throw Wccl::FileNotFound(sentence_load, "", "Query file");
+				}
 			}
+			process_line(ss.str(), parser, sc, position == "all", dump_variables);
+			return 0;
 		}
 		boost::function<bool (const std::string&)> f;
 		f = boost::bind(&process_line, _1, boost::ref(parser), boost::ref(sc),