From 8a57bedc04fff7a92ef6d2762cfe5fc17050f021 Mon Sep 17 00:00:00 2001
From: Akshay <nerdy@peppe.rs>
Date: Fri, 30 Apr 2021 22:22:13 +0530
Subject: add yacc programs

---
 6/main.l | 16 ++++++++++++++++
 6/main.y | 28 ++++++++++++++++++++++++++++
 2 files changed, 44 insertions(+)
 create mode 100644 6/main.l
 create mode 100644 6/main.y

(limited to '6')

diff --git a/6/main.l b/6/main.l
new file mode 100644
index 0000000..55dac30
--- /dev/null
+++ b/6/main.l
@@ -0,0 +1,16 @@
+%{
+#include "y.tab.h"
+#include <stdlib.h>
+%}
+
+%%
+
+a return A;
+b return B;
+. return yytext[0];
+\n return 0;
+%%
+
+int yywrap() {
+    return 1;
+}
diff --git a/6/main.y b/6/main.y
new file mode 100644
index 0000000..25005df
--- /dev/null
+++ b/6/main.y
@@ -0,0 +1,28 @@
+%{
+#include <stdio.h>
+#include <stdlib.h>
+int yylex();
+int yyerror(char *);
+%}
+
+%token A B ERR
+
+%%
+
+S:
+ A S B
+ |
+ ;
+
+%%
+
+int yyerror(char *s) {
+    printf("error: %s", s);
+    exit(0);
+}
+
+int main() {
+    yyparse();
+    printf("valid string\n");
+    return 0;
+}
-- 
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