1 files changed, 32 insertions, 0 deletions
diff --git a/unix/boot/spp/rpp/ratlibf/slstr.f b/unix/boot/spp/rpp/ratlibf/slstr.f
new file mode 100644
index 00000000..d8d98292
--- /dev/null
+++ b/unix/boot/spp/rpp/ratlibf/slstr.f
@@ -0,0 +1,32 @@
+      integer function slstr (from, to, first, chars)
+      integer from (100), to (100)
+      integer first, chars
+      integer len, i, j, k
+      integer length
+      len = length (from)
+      i = first
+      if (.not.(i .lt. 1))goto 23000
+      i = i + len + 1
+23000 continue
+      if (.not.(chars .lt. 0))goto 23002
+      i = i + chars + 1
+      chars = - chars
+23002 continue
+      j = i + chars - 1
+      if (.not.(i .lt. 1))goto 23004
+      i = 1
+23004 continue
+      if (.not.(j .gt. len))goto 23006
+      j = len
+23006 continue
+      k = 0
+23008 if (.not.(i .le. j))goto 23010
+      to (k + 1) = from (i)
+      i = i + 1
+23009 k = k + 1
+      goto 23008
+23010 continue
+      to (k + 1) = -2
+      slstr=(k)
+      return
+      end