Added first (not final) version of the TokenStack class which will be used internally by the Stack class

1 files changed, 45 insertions, 0 deletions

diff --git a/src/core/parser/stack/TokenStack.cpp b/src/core/parser/stack/TokenStack.cpp
new file mode 100644
index 0000000..6afeaed
--- /dev/null
+++ b/src/core/parser/stack/TokenStack.cpp
@@ -0,0 +1,45 @@
+/*
+    Ousía
+    Copyright (C) 2014, 2015  Benjamin Paaßen, Andreas Stöckel
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "TokenStack.hpp"
+
+namespace ousia {
+namespace parser_stack {
+
+void TokenStack::pushTokens(const std::vector<TokenSyntaxDescriptor> &tokens)
+{
+	stack.push_back(tokens);
+}
+
+void TokenStack::popTokens() { stack.pop_back(); }
+
+TokenSet TokenStack::tokens() const
+{
+	if (stack.empty() && parentStack != nullptr) {
+		return parentStack->tokens();
+	}
+
+	TokenSet res;
+	for (const TokenSyntaxDescriptor &descr : stack.back()) {
+		descr.insertIntoTokenSet(res);
+	}
+	return res;
+}
+}
+}
+