1 files changed, 25 insertions, 14 deletions
diff --git a/scripts/awink b/scripts/awink
index d0ad890..1456c8b 100755
--- a/scripts/awink
+++ b/scripts/awink
@@ -1,17 +1,28 @@
 #!/usr/bin/env bash
 
-if ! [[ -n "$1" || -n "$2" ]]; then
-	printf "%s\n" "awink <infile> <outfile>"
-	exit 2
-fi
+##
+# arguments:
+#  $1    In file
+#  $2    Out file
+build() {
+	gawk '{
+		if (NF == 2 && $1 == "%include") {
+			while ((getline line < $2) > 0) {
+				print line;
+			}
+			close($2);
+		} else {
+			print;
+		}
+	}' "$1" > "$2"
+}
 
-gawk '{
-  if (NF == 2 && $1 == "%include") {
-    while ((getline line < $2) > 0) {
-      print line;
-    }
-    close($2);
-  } else {
-    print;
-  }
-}' "$1" > "$2"
+main() {
+	if [[ "$#" != 2 ]]; then
+		printf "%s\n" "awink <in file> <out file>"
+		exit 2
+	fi
+
+	build "$1" "$2"
+}
+main "$@"