add antlr source code and ReadMeHEADmain

1 files changed, 43 insertions, 0 deletions

diff --git a/antlr4-cpp-runtime-4.9.2-source/runtime/src/atn/ErrorInfo.h b/antlr4-cpp-runtime-4.9.2-source/runtime/src/atn/ErrorInfo.h
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+/* 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.
+ */
+
+#pragma once
+
+#include "atn/DecisionEventInfo.h"
+
+namespace antlr4 {
+namespace atn {
+
+  /// <summary>
+  /// This class represents profiling event information for a syntax error
+  /// identified during prediction. Syntax errors occur when the prediction
+  /// algorithm is unable to identify an alternative which would lead to a
+  /// successful parse.
+  /// </summary>
+  /// <seealso cref= Parser#notifyErrorListeners(Token, String, RecognitionException) </seealso>
+  /// <seealso cref= ANTLRErrorListener#syntaxError
+  ///
+  /// @since 4.3 </seealso>
+  class ANTLR4CPP_PUBLIC ErrorInfo : public DecisionEventInfo {
+  public:
+    /// <summary>
+    /// Constructs a new instance of the <seealso cref="ErrorInfo"/> class with the
+    /// specified detailed syntax error information.
+    /// </summary>
+    /// <param name="decision"> The decision number </param>
+    /// <param name="configs"> The final configuration set reached during prediction
+    /// prior to reaching the <seealso cref="ATNSimulator#ERROR"/> state </param>
+    /// <param name="input"> The input token stream </param>
+    /// <param name="startIndex"> The start index for the current prediction </param>
+    /// <param name="stopIndex"> The index at which the syntax error was identified </param>
+    /// <param name="fullCtx"> {@code true} if the syntax error was identified during LL
+    /// prediction; otherwise, {@code false} if the syntax error was identified
+    /// during SLL prediction </param>
+    ErrorInfo(size_t decision, ATNConfigSet *configs, TokenStream *input, size_t startIndex, size_t stopIndex,
+              bool fullCtx);
+  };
+
+} // namespace atn
+} // namespace antlr4