1 files changed, 25 insertions, 0 deletions
diff --git a/as/as.l b/as/as.l
new file mode 100644
index 0000000..059b7c3
--- /dev/null
+++ b/as/as.l
@@ -0,0 +1,25 @@
+%{
+#include <inttypes.h>
+#include "as.tab.h"
+%}
+
+NONDIGIT	[_a-zA-Z]
+DIGIT		[0-9]
+IDENTIFIERS	[_a-zA-Z0-9]
+
+%x COMMENT
+
+%%
+
+{DIGIT}+	{ yylval.n = strtoumax(yytext, NULL, 10); return NUMBER; }
+
+{NONDIGIT}{IDENTIFIERS}* { yylval.s = yytext; return TOKEN; }
+
+:|,|\.		{ return yytext[0]; }
+\n		{ return NEWLINE; }
+
+;		{ BEGIN COMMENT; }
+<COMMENT>.	;
+<COMMENT>\n	{ BEGIN INITIAL; return NEWLINE; }
+
+.		;