1 files changed, 16 insertions, 0 deletions
diff --git a/unix/boot/spp/rpp/ratlibr/insub.r b/unix/boot/spp/rpp/ratlibr/insub.r
new file mode 100644
index 00000000..7d71b95f
--- /dev/null
+++ b/unix/boot/spp/rpp/ratlibr/insub.r
@@ -0,0 +1,16 @@
+include	defs
+
+# insub - determine if argument is STDIN substitution
+
+   integer function insub (arg, file)
+   character arg (ARB), file (ARB)
+
+   if (arg (1) == LESS & arg (2) != EOS) {
+      insub = YES
+      call scopy (arg, 2, file, 1)
+      }
+   else
+      insub = NO
+
+   return
+   end