Fix output for large numbers.

diff --git a/tests/mpx-gen b/tests/mpx-gen
index 89cfdb3..e53b1d6 100755 (executable)
--- a/tests/mpx-gen
+++ b/tests/mpx-gen
@@ -1,6 +1,6 @@
 #! /usr/bin/awk -f
 #
-# $Id: mpx-gen,v 1.1 1999/11/14 13:53:44 mdw Exp $
+# $Id: mpx-gen,v 1.2 1999/12/10 23:26:51 mdw Exp $
 #
 # Generate test vectors for MPX testing
 
@@ -29,11 +29,35 @@ BEGIN {
   if (i in ARGV) rep = ARGV[i++]; else rep = 1;
 
   # --- Output filters ---
-
-  bc = "bc | sed 'y/ABCDEF/abcdef/; \
-                      s/^[0-9a-f]\\([0-9a-f][0-9a-f]\\)*$/0&/; \
-                      s/^/  /; \
-                      $ s/$/;/'";
+  #
+  # This is complicated.  `bc' emits numbers split over multiple lines with
+  # backslashes.  It also doesn't pad to an even number of digits, which the
+  # test rig is expecting, or use lower-case, which looks nicer.
+  #
+  # The first bit matches a line ending with a backslash.  If it finds one,
+  # it appends the next line, removes the backslash/newline pair, and loops
+  # around to the top.
+  #
+  # The next substitution translates the whole kaboodle into lower-case.
+  #
+  # The next one looks for an off number of hex digits and prepends a zero if
+  # it finds one.
+  #
+  # The one after that just indents by two spaces. The final one sticks a
+  # semicolon on the end.
+
+  bc = "bc | sed '\
+:top\n\
+/\\\\$/ {\n\
+  N\n\
+  s/\\\\\\\n\
+//;\n\
+  b top;\n\
+}\n\
+y/ABCDEF/abcdef/\n\
+s/^[0-9a-f]\\([0-9a-f][0-9a-f]\\)*$/0&/\n\
+s/^/  /\n\
+$ s/$/;/'";
   out = "sed 'y/ABCDEF/abcdef/; s/^/  /'"
 
   # --- Main code ---