From df4a225ccf79dd9f5fa3faef4fd68ae87471f0ca Mon Sep 17 00:00:00 2001
From: Freya Murphy <freya@freyacat.org>
Date: Fri, 13 Sep 2024 11:11:18 -0400
Subject: better

---
 masm/lex.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'masm/lex.h')

diff --git a/masm/lex.h b/masm/lex.h
index f1c482a..e08d0a3 100644
--- a/masm/lex.h
+++ b/masm/lex.h
@@ -14,6 +14,13 @@ struct lexer {
 	int y;
 };
 
+struct lexer_state {
+	long offset;
+	int peek;
+	int x;
+	int y;
+};
+
 enum token_type {
 	TOK_IDENT,
 	TOK_REG,
@@ -52,4 +59,10 @@ int lexer_next(struct lexer *lexer, struct token *token);
 /* token type to string */
 char *token_str(enum token_type);
 
+/* save the state of a lexer */
+void lexer_save(struct lexer *lexer, struct lexer_state *state);
+
+/* load a different state into a lexer */
+void lexer_load(struct lexer *lexer, const struct lexer_state *state);
+
 #endif /* __LEX_H__ */
-- 
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