1 files changed, 20 insertions, 0 deletions
diff --git a/process_args.c b/process_args.c
new file mode 100644
index 0000000..6e6827d
--- /dev/null
+++ b/process_args.c
@@ -0,0 +1,20 @@
+#include <stdio.h>
+#include <stdlib.h>
+void process_args(int argc, char **argv,char *docstring){
+  if (argc > 1 && argv[1][0]=='-' && argv[1][1]=='h') {
+    fprintf(stderr,docstring);  
+    fprintf(stderr,"\n\nusage: %s [infile] [outfile]\n",argv[0]);
+    exit(1); 	
+  }
+
+  if (argc > 1){
+    freopen(argv[1],"r",stdin);
+  }
+  
+  if (argc > 2){
+    freopen(argv[2],"w",stdout);
+  }
+    
+}
+
+