1 files changed, 57 insertions, 0 deletions
diff --git a/include/lex.h b/include/lex.h
new file mode 100644
index 0000000..a712204
--- /dev/null
+++ b/include/lex.h
@@ -0,0 +1,57 @@
+#ifndef LEX_H
+#define LEX_H
+
+#include <stddef.h>
+
+// Only to be used with compile-time known tokens.
+#define TOKEN(tt, me) (struct token){.type=tt,.lexeme=me,.length=sizeof(me) - 1}
+
+#define	TOKEN_INVALID		1
+#define TOKEN_EOP		2
+#define TOKEN_NUMBER		3
+#define TOKEN_HEX		4
+#define TOKEN_BINARY		5
+#define TOKEN_SEMICOLON		6
+#define TOKEN_NEWLINE		7
+#define TOKEN_FUNCTION		8
+#define TOKEN_G8		9
+#define TOKEN_G16		10
+#define TOKEN_G32		11
+#define TOKEN_G64		12
+#define TOKEN_IDENTIFIER	13
+#define TOKEN_PACK		14
+#define TOKEN_BRACES_OPEN	15
+#define TOKEN_BRACES_CLOSE	16
+#define TOKEN_PARAN_OPEN	17
+#define TOKEN_PARAN_CLOSE	18
+#define TOKEN_RETURN		19
+#define TOKEN_EQUALSIGN         20
+#define TOKEN_PLUS              21
+#define TOKEN_MINUS             22
+#define TOKEN_STAR              23
+#define TOKEN_SLASH             24
+
+struct token {
+	int type;
+//	size_t line;
+//	size_t pos;
+	size_t length;
+	char *lexeme;
+};
+
+struct lex {
+	size_t pos;
+	size_t size;
+	char* buffer;
+	size_t line;
+};
+
+char lex_advance(struct lex *l);
+char lex_seek(struct lex *l, size_t o);
+
+struct token lex_number(struct lex *l);
+struct token lex_directive(struct lex *l);
+struct token lex_link_unit(struct lex *l);
+struct token lex_next(struct lex *l);
+
+#endif