add antlr source code and ReadMeHEADmain

1 files changed, 36 insertions, 0 deletions

diff --git a/antlr4-cpp-runtime-4.9.2-source/runtime/src/LexerNoViableAltException.cpp b/antlr4-cpp-runtime-4.9.2-source/runtime/src/LexerNoViableAltException.cpp
new file mode 100644
index 0000000..cc4fdcf
--- /dev/null
+++ b/antlr4-cpp-runtime-4.9.2-source/runtime/src/LexerNoViableAltException.cpp
@@ -0,0 +1,36 @@
+/* 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/Interval.h"
+#include "support/CPPUtils.h"
+#include "CharStream.h"
+#include "Lexer.h"
+
+#include "LexerNoViableAltException.h"
+
+using namespace antlr4;
+
+LexerNoViableAltException::LexerNoViableAltException(Lexer *lexer, CharStream *input, size_t startIndex,
+                                                     atn::ATNConfigSet *deadEndConfigs)
+  : RecognitionException(lexer, input, nullptr, nullptr), _startIndex(startIndex), _deadEndConfigs(deadEndConfigs) {
+}
+
+size_t LexerNoViableAltException::getStartIndex() {
+  return _startIndex;
+}
+
+atn::ATNConfigSet* LexerNoViableAltException::getDeadEndConfigs() {
+  return _deadEndConfigs;
+}
+
+std::string LexerNoViableAltException::toString() {
+  std::string symbol;
+  if (_startIndex < getInputStream()->size()) {
+    symbol = static_cast<CharStream *>(getInputStream())->getText(misc::Interval(_startIndex, _startIndex));
+    symbol = antlrcpp::escapeWhitespace(symbol, false);
+  }
+  std::string format = "LexerNoViableAltException('" + symbol + "')";
+  return format;
+}