add some lua library

lua-protobuf/array.h

@@ -0,0 +1,31 @@
+#ifndef PROTOBUF_C_ARRAY_H
+#define PROTOBUF_C_ARRAY_H
+
+#include "varint.h"
+#include "pbc.h"
+#include "alloc.h"
+
+typedef union _pbc_var {
+	struct longlong integer;
+	double real;
+	struct {
+		const char * str;
+		int len;
+	} s;
+	struct {
+		int id;
+		const char * name;
+	} e;
+	struct pbc_slice m;
+	void * p[2];
+} pbc_var[1];
+
+void _pbcA_open(pbc_array);
+void _pbcA_open_heap(pbc_array, struct heap *h);
+void _pbcA_close(pbc_array);
+
+void _pbcA_push(pbc_array, pbc_var var);
+void _pbcA_index(pbc_array , int idx, pbc_var var);
+void * _pbcA_index_p(pbc_array _array, int idx);
+
+#endif