parser -> preprocesser + parser

I've decided to split the module parsing into two modules, one for the
preprocessing stage which only deals with tokens and the parsing stage
which generates bytecode.

1 files changed, 39 insertions, 0 deletions

diff --git a/asm/preprocesser.hpp b/asm/preprocesser.hpp
new file mode 100644
index 0000000..9d733dd
--- /dev/null
+++ b/asm/preprocesser.hpp
@@ -0,0 +1,39 @@
+/* Copyright (C) 2024 Aryadev Chavali
+
+ * You may distribute and modify this code under the terms of the GPLv2
+ * license.  You should have received a copy of the GPLv2 license with
+ * this file.  If not, please write to: aryadev@aryadevchavali.com.
+
+ * Created: 2024-04-14
+ * Author: Aryadev Chavali
+ * Description: Preprocessor which occurs after lexing before parsing.
+ */
+
+#ifndef PREPROCESSER_HPP
+#define PREPROCESSER_HPP
+
+#include <tuple>
+
+#include "./lexer.hpp"
+
+enum pp_err_t
+{
+  OK = 0,
+  EXPECTED_NAME,
+  EXPECTED_STRING,
+  EXPECTED_END,
+  FILE_NONEXISTENT,
+  FILE_PARSE_ERROR,
+  UNKNOWN_NAME,
+};
+
+std::pair<std::vector<token_t>, pp_err_t>
+preprocesser(const std::vector<token_t> &);
+
+std::pair<std::vector<token_t>, pp_err_t>
+preprocess_macro_blocks(const std::vector<token_t> &);
+
+std::pair<std::vector<token_t>, pp_err_t>
+preprocess_use_blocks(const std::vector<token_t> &);
+
+#endif