From bdcc571b0d5afe6efdf08b890f828a39710129a5 Mon Sep 17 00:00:00 2001
From: Manuel Ramos <129445057+Saik-47@users.noreply.github.com>
Date: Tue, 29 Apr 2025 23:47:41 -0600
Subject: [PATCH] A00227837 - Lexical Analyzer

Lexical analyzer based on the activity 3.1 Lexycal Analyzer Scanner
---
 labs/04/Lexical_Analyzer.l | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 labs/04/Lexical_Analyzer.l

diff --git a/labs/04/Lexical_Analyzer.l b/labs/04/Lexical_Analyzer.l
new file mode 100644
index 0000000..6464ea5
--- /dev/null
+++ b/labs/04/Lexical_Analyzer.l
@@ -0,0 +1,33 @@
+%{
+#include <stdio.h>
+%}
+
+%%
+"//".                       printf("COMMENT\n ");
+"f"                         printf("floatdcl ");
+"i"                         printf("intdcl ");
+[a-zA-Z]+                   printf("id\n");
+[1-9][0-9]*\.[0-9]+         printf("fnum\n");
+[1-9][0-9]*                 printf("inum\n");
+"p"                         printf("print ");
+"-"                         printf("minus ");
+"="                         printf("assign ");
+"+"                         printf("plus ");
+"/"                         print("divide " )
+"*"                         print ("multiply ")
+[ \t\n]+			{ /* empty spaces */ }
+.					{ printf("UNKOWN CHAR '%s'\n", yytext); }
+%%
+
+int main(int argc, char **argv) {
+	if(argc > 1) {
+		FILE *file = fopen(argv[1], "r");
+		if(!file) {
+			perror("[!] Couldnt open file");
+			return 1;
+		}
+		yyin = file;
+	}
+	yylex();
+	return 0;
+}
\ No newline at end of file