ref: 2fe3b28f86ed4aa291fb8a620b948abe9c6a1f84
dir: /sys/src/cmd/python/Doc/tools/keywords.py/
#! /usr/bin/env python
# This Python program sorts and reformats the table of keywords in ref2.tex
l = []
try:
while 1:
l = l + raw_input().split()
except EOFError:
pass
l.sort()
for x in l[:]:
while l.count(x) > 1: l.remove(x)
ncols = 5
nrows = (len(l)+ncols-1)/ncols
for i in range(nrows):
for j in range(i, len(l), nrows):
print l[j].ljust(10),
print