#! /usr/bin/env python

import re

defRe = re.compile("#define\s+(E\S+)\s+(\\d+)") ;

errors = []
bynum = {}
max = 0
for line in file("/usr/include/sys/errno.h"):
	m = defRe.match(line)
	if (m != None):
		name = m.group(1)
		if (name == "ELAST"): continue
		number = int(m.group(2))
		assert (number not in bynum), "number collision: " + str(number)
		errors.append((name, number))
		bynum[number] = name
		if (number > max):
			max = number

print "public interface Errno {"
print "\t"
for name, number in errors:
	print "\tpublic static final int", name, "=", number, ";"
print "\t"
print "\tpublic static final String[] NAMES = {"
for i in xrange(0, (max + 1)):
	name = bynum.get(i, None)
	if (name != None):
		s = "\"" + name + "\""
	else:
		s = "null" ;
	print "\t\t" + s + ","
print "\t} ;"
print "\t"
print "}"