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#
# Copyright (C) 2017-2020 Dimitar Toshkov Zhekov <dimitar.zhekov@gmail.com>
#
# This program 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 2 of the License, or (at your option)
# any later version.
#
# This program 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 this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
import sys
# -- Various --
UNICODE_MAX = 1114111 # 0x10FFFF
UNICODE_BMP_MAX = 65535 # 0xFFFF
def parse_dec(name, s, min_value=0, max_value=UNICODE_MAX):
try:
value = int(s)
except ValueError:
raise Exception('invalid %s format' % name)
if min_value is not None and value < min_value:
raise Exception('%s must be >= %d' % (name, min_value))
if max_value is not None and value > max_value:
raise Exception('%s must be <= %d' % (name, max_value))
return value
def parse_hex(name, s, min_value=0, max_value=UNICODE_MAX):
try:
value = int(s, 16)
except ValueError:
raise Exception('invalid %s format' % name)
if min_value is not None and value < min_value:
raise Exception('%s must be >= %X' % (name, min_value))
if max_value is not None and value > max_value:
raise Exception('%s must be <= %X' % (name, max_value))
return value
def quote(bstr):
return b'"%s"' % bstr.replace(b'"', b'""')
def unquote(bstr, name=None):
if len(bstr) >= 2 and bstr.startswith(b'"') and bstr.endswith(b'"'):
bstr = bstr[1 : len(bstr) - 1].replace(b'""', b'"')
elif name is not None:
raise Exception(name + ' must be quoted')
return bstr
def message(prefix, severity, text):
sys.stderr.write('%s%s%s\n' % (prefix, severity + ': ' if severity else '', text))
def warning(prefix, text):
message(prefix, 'warning', text)
def split_words(name, value, count):
words = value.split(None, count)
if len(words) != count:
raise Exception('%s must contain %d values' % (name, count))
return words
GPL2PLUS_LICENSE = ('' +
'This program is free software; you can redistribute it and/or modify it\n' +
'under the terms of the GNU General Public License as published by the Free\n' +
'Software Foundation; either version 2 of the License, or (at your option)\n' +
'any later version.\n' +
'\n' +
'This program is distributed in the hope that it will be useful, but\n' +
'WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\n' +
'or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License\n' +
'for more details.\n' +
'\n' +
'You should have received a copy of the GNU General Public License along\n' +
'with this program; if not, write to the Free Software Foundation, Inc.,\n' +
'51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.\n')
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