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#!/usr/bin/env python
__license__ = """
This file is part of Gnu FreeFont.

Gnu FreeFont is free software: you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later
version.

Gnu FreeFont is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with
Gnu FreeFont.  If not, see <http://www.gnu.org/licenses/>. 
"""
__author__ = "Stevan White"
__email__ = "stevan.white@googlemail.com"
__copyright__ = "Copyright 2009, 2010, 2011 Stevan White"
__date__ = "$Date: 2011-09-13 13:05:59 +0200 (Tue, 13 Sep 2011) $"
__version__ = "$Revision: 1704 $"

__doc__ = """Sends to standard output a range of hex values formatted
    for e.g. HTML.
    Takes one or two numerical arguments.  With one argument the output
    is just the formatted value of the argument.
"""

import sys

# Python Unicode prefix
prefix = '\\u'
postfix = ''
# General Unicode prefix
prefix = 'U+'
postfix = ''
# HTML Entity
prefix = '&#x'
postfix = ';'

def explain_error_and_quit( e ):
	if e:
		print 'Error: ', e
	print "Usage:"
	print "       hex_range num1 [num2]"
	exit( 1 )

def print_formatted_hex_value( n ):
	print '%s%0.4x%s' %( prefix, n, postfix )

if len( sys.argv ) == 3:
	try:
		a = int( sys.argv[1], 0 )
		b = int( sys.argv[2], 0 )
		for i in xrange( a, b + 1 ):
			print_formatted_hex_value( i )
	except ValueError, e:
		explain_error_and_quit( e )
elif len( sys.argv ) == 2:
	try:
		a = int( sys.argv[1], 0 )
		print_formatted_hex_value( a )
	except ValueError, e:
		explain_error_and_quit( e )
else:
		explain_error_and_quit()