diff --git a/genauthoritychartbl.py b/genauthoritychartbl.py
new file mode 100755
index 00000000..39d63d37
--- /dev/null
+++ b/genauthoritychartbl.py
@@ -0,0 +1,32 @@
+#!/usr/bin/env python
+import sys
+
+def name(i):
+    if i < 0x21:
+        return \
+            ['NUL ', 'SOH ', 'STX ', 'ETX ', 'EOT ', 'ENQ ', 'ACK ', 'BEL ',
+             'BS  ', 'HT  ', 'LF  ', 'VT  ', 'FF  ', 'CR  ', 'SO  ', 'SI  ',
+             'DLE ', 'DC1 ', 'DC2 ', 'DC3 ', 'DC4 ', 'NAK ', 'SYN ', 'ETB ',
+             'CAN ', 'EM  ', 'SUB ', 'ESC ', 'FS  ', 'GS  ', 'RS  ', 'US  ',
+             'SPC '][i]
+    elif i == 0x7f:
+        return 'DEL '
+
+for i in range(256):
+    if chr(i) in [
+        "-", ".", "_", "~",
+        "!", "$", "&", "'", "(", ")",
+        "*", "+", ",", ";", "=",
+        "%", "@", ":", "[", "]"] or\
+        ('0' <= chr(i) and chr(i) <= '9') or \
+        ('A' <= chr(i) and chr(i) <= 'Z') or \
+        ('a' <= chr(i) and chr(i) <= 'z'):
+        sys.stdout.write('1 /* {}    */, '.format(chr(i)))
+    elif (0x21 <= i and i < 0x7f):
+        sys.stdout.write('0 /* {}    */, '.format(chr(i)))
+    elif 0x80 <= i:
+        sys.stdout.write('0 /* {} */, '.format(hex(i)))
+    else:
+        sys.stdout.write('0 /* {} */, '.format(name(i)))
+    if (i + 1)%4 == 0:
+        sys.stdout.write('\n')