add antlr source code and ReadMeHEADmain

1 files changed, 56 insertions, 0 deletions

diff --git a/antlr4-cpp-runtime-4.9.2-source/runtime/src/atn/LexerModeAction.cpp b/antlr4-cpp-runtime-4.9.2-source/runtime/src/atn/LexerModeAction.cpp
new file mode 100644
index 0000000..0bda8b7
--- /dev/null
+++ b/antlr4-cpp-runtime-4.9.2-source/runtime/src/atn/LexerModeAction.cpp
@@ -0,0 +1,56 @@
+/* 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 "misc/MurmurHash.h"
+#include "Lexer.h"
+
+#include "atn/LexerModeAction.h"
+
+using namespace antlr4;
+using namespace antlr4::atn;
+using namespace antlr4::misc;
+
+LexerModeAction::LexerModeAction(int mode) : _mode(mode) {
+}
+
+int LexerModeAction::getMode() {
+  return _mode;
+}
+
+LexerActionType LexerModeAction::getActionType() const {
+  return LexerActionType::MODE;
+}
+
+bool LexerModeAction::isPositionDependent() const {
+  return false;
+}
+
+void LexerModeAction::execute(Lexer *lexer) {
+  lexer->setMode(_mode);
+}
+
+size_t LexerModeAction::hashCode() const {
+  size_t hash = MurmurHash::initialize();
+  hash = MurmurHash::update(hash, static_cast<size_t>(getActionType()));
+  hash = MurmurHash::update(hash, _mode);
+  return MurmurHash::finish(hash, 2);
+}
+
+bool LexerModeAction::operator == (const LexerAction &obj) const {
+  if (&obj == this) {
+    return true;
+  }
+
+  const LexerModeAction *action = dynamic_cast<const LexerModeAction *>(&obj);
+  if (action == nullptr) {
+    return false;
+  }
+
+  return _mode == action->_mode;
+}
+
+std::string LexerModeAction::toString() const {
+  return "mode(" + std::to_string(_mode) + ")";
+}