From 0f360316323ca64ba1d6f7a4c1fb529c089eb37b Mon Sep 17 00:00:00 2001
From: Raghav Grover <groverji7997@gmail.com>
Date: Tue, 9 Oct 2018 10:31:49 +0530
Subject: [PATCH] Added a flex program to remove special characters.

---
 FLEX/special_char.l | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 FLEX/special_char.l

diff --git a/FLEX/special_char.l b/FLEX/special_char.l
new file mode 100644
index 000000000..acdff04dc
--- /dev/null
+++ b/FLEX/special_char.l
@@ -0,0 +1,20 @@
+/* This program removes special characters from a file. It takes "spchar.txt" as input and stores the output in "wspchar.txt". */
+%{
+  #include<stdio.h>
+  FILE *sp,*wsp;
+%}
+
+%%
+[a-zA-Z ] {fprintf(wsp,"%s",yytext);}
+. {fprintf(wsp,"");}
+%%
+
+int main()
+{
+  sp=fopen("spchar.txt","r");
+  wsp=fopen("wspchar.txt","w+");
+  yyin=sp;
+  yyout=wsp;
+  yylex();
+  return 0;
+}