Initial commit

Signed-off-by: Mubashshir <ahmubashshir@gmail.com>

1 files changed, 90 insertions, 0 deletions

diff --git a/src/system.yy b/src/system.yy
new file mode 100644
index 0000000..af64edd
--- /dev/null
+++ b/src/system.yy
@@ -0,0 +1,90 @@
+/* parser.y (Bison file) */
+%{
+#define PARSER_SOURCE
+#include <fstream>
+#include <filesystem>
+#include "system.pb.h"  // Include the generated protobuf header
+#include "lexer.h"
+#define yylex lexer.yynlex
+
+using namespace std;
+
+Entry::System msg;
+
+%}
+
+%language "c++"
+%require "3.2"
+%define api.token.constructor
+%define api.value.type variant
+
+%code requires // *.hh
+{
+#include <cstdint>
+#include "lexer.h"
+}
+
+%parse-param {Lexer<symbol_type> &lexer}
+
+%token <uint64_t> NUM
+%token <double> FRC
+%token BREAK BLANK START END VERSION CPU BASE USER NICE
+%token SYSP IDLE IOWP IRQP SIRQ CORE MEM TOTAL CACHE SHARED
+%token TSWAP USWAP TEMP CURR TMIN TMAX TAVG COLON SLASH
+
+%%
+
+// Grammar Rules
+start:
+	block
+	| start block
+	;
+
+block:
+	block_start data block_end
+	;
+
+block_start:
+	START BLANK NUM BREAK {
+		msg.set_epoch($<uint64_t>3);
+	}
+	;
+
+block_end:
+	END BLANK NUM BREAK {
+		if ($<uint64_t>3 != msg.epoch()) {
+			msg.Clear();
+			cout << $<uint64_t>3 << endl;
+		} else {
+			cout << $<uint64_t>3 << endl;
+			auto p = filesystem::path("proto");
+			p /= to_string($<uint64_t>3);
+			p += string(".proto");
+			ofstream f(p, ios_base::out | ios_base::binary);
+			msg.SerializeToOstream(&f);
+			f.close();
+		}
+	}
+
+data:
+;
+%%
+
+namespace yy
+{
+  // Report an error to the user.
+  auto parser::error (const std::string& msg) -> void
+  {
+    std::cerr << msg << '\n';
+  }
+}
+
+#undef PARSER_SOURCE
+#include "lexer.h"
+
+int main() {
+	Lexer<yy::parser::symbol_type> lexer;
+	yy::parser parse(lexer);
+
+    return parse();
+}