Initial commit

1 files changed, 59 insertions, 0 deletions

diff --git a/unix/boot/spp/rpp/rpprat/relate.r b/unix/boot/spp/rpp/rpprat/relate.r
new file mode 100644
index 00000000..50a04025
--- /dev/null
+++ b/unix/boot/spp/rpp/rpprat/relate.r
@@ -0,0 +1,59 @@
+#-h-  relate			 1276  local   12/01/80  15:54:35
+# relate - convert relational shorthands into long form
+   include  defs
+
+   subroutine relate (token, last)
+   character token (ARB)
+   integer last
+
+   character ngetch
+
+   integer length
+
+   if (ngetch (token (2)) != EQUALS) {
+      call putbak (token (2))
+      token (3) = LETT
+      }
+   else
+      token (3) = LETE
+   token (4) = PERIOD
+   token (5) = EOS
+   token (6) = EOS # for .not. and .and.
+   if (token (1) == GREATER)
+      token (2) = LETG
+   else if (token (1) == LESS)
+      token (2) = LETL
+   else if (token (1) == NOT | token (1) == BANG |
+	    token (1) == CARET | token (1) == TILDE) {
+      if (token (2) != EQUALS) {
+	 token (3) = LETO
+	 token (4) = LETT
+	 token (5) = PERIOD
+	 }
+      token (2) = LETN
+      }
+   else if (token (1) == EQUALS) {
+      if (token (2) != EQUALS) {
+	 token (2) = EOS
+	 last = 1
+	 return
+	 }
+      token (2) = LETE
+      token (3) = LETQ
+      }
+   else if (token (1) == AND) {
+      token (2) = LETA
+      token (3) = LETN
+      token (4) = LETD
+      token (5) = PERIOD
+      }
+   else if (token (1) == OR) {
+      token (2) = LETO
+      token (3) = LETR
+      }
+   else   # can't happen
+      token (2) = EOS
+   token (1) = PERIOD
+   last = length (token)
+   return
+   end