add antlr source code and ReadMeHEADmain

1 files changed, 25 insertions, 0 deletions

diff --git a/antlr4-cpp-runtime-4.9.2-source/runtime/src/atn/DecisionInfo.cpp b/antlr4-cpp-runtime-4.9.2-source/runtime/src/atn/DecisionInfo.cpp
new file mode 100644
index 0000000..ee9b1aa
--- /dev/null
+++ b/antlr4-cpp-runtime-4.9.2-source/runtime/src/atn/DecisionInfo.cpp
@@ -0,0 +1,25 @@
+/* Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
+ * Use of this file is governed by the BSD 3-clause license that
+ * can be found in the LICENSE.txt file in the project root.
+ */
+
+#include "atn/ErrorInfo.h"
+#include "atn/LookaheadEventInfo.h"
+
+#include "atn/DecisionInfo.h"
+
+using namespace antlr4::atn;
+
+DecisionInfo::DecisionInfo(size_t decision) : decision(decision) {
+}
+
+std::string DecisionInfo::toString() const {
+  std::stringstream ss;
+
+  ss << "{decision=" << decision << ", contextSensitivities=" << contextSensitivities.size() << ", errors=";
+  ss << errors.size() << ", ambiguities=" << ambiguities.size() << ", SLL_lookahead=" << SLL_TotalLook;
+  ss << ", SLL_ATNTransitions=" << SLL_ATNTransitions << ", SLL_DFATransitions=" << SLL_DFATransitions;
+  ss << ", LL_Fallback=" << LL_Fallback << ", LL_lookahead=" << LL_TotalLook << ", LL_ATNTransitions=" << LL_ATNTransitions << '}';
+
+  return ss.str();
+}