should work

[c11concurrency-benchmarks.git] / mabain / binaries / expr_parser.h

diff --git a/mabain/binaries/expr_parser.h b/mabain/binaries/expr_parser.h
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+++ b/mabain/binaries/expr_parser.h
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+/**
+ * Copyright (C) 2017 Cisco Inc.
+ *
+ * This program is free software: you can redistribute it and/or  modify
+ * it under the terms of the GNU General Public License, version 2,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+// @author Changxue Deng <chadeng@cisco.com>
+
+#ifndef __EXPR_PARSER_H__
+#define __EXPR_PARSER_H__
+
+#include <string>
+
+// A simple mabain client expression LL parser
+class ExprParser
+{
+public:
+    ExprParser(const std::string &expr);
+    ~ExprParser();
+    int Evaluate(std::string &result);
+
+private:
+    int Parse(std::string &result);
+
+    size_t pos;
+    std::string expr;
+#define EXPR_PARSER_BUFFER_SIZE 1024
+    uint8_t buffer[EXPR_PARSER_BUFFER_SIZE];
+    std::string err_str;
+};
+
+#endif