1 files changed, 55 insertions, 0 deletions
diff --git a/Source/cmExprParserHelper.h b/Source/cmExprParserHelper.h
new file mode 100644
index 0000000..dcdaca9
--- /dev/null
+++ b/Source/cmExprParserHelper.h
@@ -0,0 +1,55 @@
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
+#ifndef cmExprParserHelper_h
+#define cmExprParserHelper_h
+
+#include "cmConfigure.h" // IWYU pragma: keep
+
+#include <string>
+#include <vector>
+
+class cmExprParserHelper
+{
+public:
+  struct ParserType
+  {
+    int Number;
+  };
+
+  cmExprParserHelper();
+  ~cmExprParserHelper();
+
+  int ParseString(const char* str, int verb);
+
+  int LexInput(char* buf, int maxlen);
+  void Error(const char* str);
+
+  void SetResult(int value);
+
+  int GetResult() { return this->Result; }
+
+  const char* GetError() { return this->ErrorString.c_str(); }
+
+private:
+  std::string::size_type InputBufferPos;
+  std::string InputBuffer;
+  std::vector<char> OutputBuffer;
+  int CurrentLine;
+  int Verbose;
+
+  void Print(const char* place, const char* str);
+
+  void CleanupParser();
+
+  int Result;
+  const char* FileName;
+  long FileLine;
+  std::string ErrorString;
+};
+
+#define YYSTYPE cmExprParserHelper::ParserType
+#define YYSTYPE_IS_DECLARED
+#define YY_EXTRA_TYPE cmExprParserHelper*
+#define YY_DECL int cmExpr_yylex(YYSTYPE* yylvalp, yyscan_t yyscanner)
+
+#endif