Added method for dumping variables

libwccl/ops/parsedexpression.h

@@ -138,6 +138,19 @@ public:
 	 * @see clone_ptr - a version that keeps values of the variables.
 	 */
 	boost::shared_ptr<ParsedExpression> clone_clean_ptr() const;
+	
+	/**
+	 * Dup all variables to error stream.
+	 */
+	void dumpvariables(const Corpus2::Tagset& tagset)
+	{
+		typedef std::pair<std::string, boost::shared_ptr<Wccl::Value> > v_t;
+
+		foreach (const v_t& v, variables_->get_all<Wccl::Value>()) {
+			std::cerr << v.second->make_var_repr(v.first) << "="
+				<< v.second->to_string(tagset) << "\n";
+		}
+	}
 
 protected:
 	explicit ParsedExpression(const Variables& variables);