A01635547-homework-04

Signed-off-by: Rodrigo Chavez <rodrigo.chavez@oracle.com>

Author: Rodrigo Chavez

labs/04/language_ac.l

@@ -0,0 +1,30 @@
+%{
+#include <stdio.h>
+%}
+
+%option noyywrap
+
+letter [a-zA-Z]
+digit [0-9]
+number {digit}+
+
+%%
+\/{2}.*                 { printf("COMMENT "); }
+^f                       { printf("floatdcl "); }
+^i                       { printf("intdcl "); }
+=                       { printf("assign "); }
+\+                      { printf("plus "); }
+\-                      { printf("minus "); }
+\*                      { printf("multiplication "); }
+\/                      { printf("division "); }
+^p                      { printf("print "); }
+({letter}{digit}*)+      { printf("id "); }
+(0|([1-9]{digit}*))\.(({digit}*[1-9])|0)   { printf("fnum "); }
+{number}                  { printf("inum "); }
+[ \t]+                  /* ignore whitespace */
+%%
+
+int main() {
+    yylex();
+    return 0;
+}