A01635547-homework-04

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

Author: Rodrigo Chavez

labs/04/Makefile

@@ -0,0 +1,30 @@
+LDFLAGS = -L/opt/homebrew/opt/flex/lib
+CPPFLAGS = -I/opt/homebrew/opt/flex/include
+
+# generate 
+example: code_generator.py 
+	python3 code_generator.py > example.ac
+
+# compile 
+gen_lex:
+	lex language_ac.l
+	gcc $(CPPFLAGS) $(LDFLAGS) lex.yy.c -o lexical_scan -lfl
+
+test: example.ac
+	./lexical_scan < example.ac
+# run lex, then compile lex.yy.c then run lexical_scan
+#
+stress:
+	lex language_ac.l
+	gcc $(CPPFLAGS) $(LDFLAGS) lex.yy.c -o lexical_scan -lfl
+	python3 code_generator.py --stress
+	./lexical_scan < random_code.ac
+run:
+	lex language_ac.l
+	gcc $(CPPFLAGS) $(LDFLAGS) lex.yy.c -o lexical_scan -lfl
+	python3 code_generator.py > example.ac
+	./lexical_scan < example.ac
+
+# Limpiar archivos generados
+clean:
+	rm -f lex.yy.c lexical_scan example.ac

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;
+}