/usr/share/pyshared/messaging/sms/gsm0338.py is in python-messaging 0.5.11+debian-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# 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 codecs
import sys
import traceback
QUESTION_MARK = chr(0x3f)
# data from
# http://snoops.roy202.org/testerman/browser/trunk/plugins/codecs/gsm0338.py
mapping = [
('\x00', u'\u0040'), # COMMERCIAL AT
('\x00', u'\u0000'), # NULL (see note above)
('\x01', u'\u00A3'), # POUND SIGN
('\x02', u'\u0024'), # DOLLAR SIGN
('\x03', u'\u00A5'), # YEN SIGN
('\x04', u'\u00E8'), # LATIN SMALL LETTER E WITH GRAVE
('\x05', u'\u00E9'), # LATIN SMALL LETTER E WITH ACUTE
('\x06', u'\u00F9'), # LATIN SMALL LETTER U WITH GRAVE
('\x07', u'\u00EC'), # LATIN SMALL LETTER I WITH GRAVE
('\x08', u'\u00F2'), # LATIN SMALL LETTER O WITH GRAVE
('\x09', u'\u00E7'), # LATIN SMALL LETTER C WITH CEDILLA
('\x09', u'\u00C7'), # LATIN CAPITAL LETTER C WITH CEDILLA
('\x0A', u'\u000A'), # LINE FEED
('\x0B', u'\u00D8'), # LATIN CAPITAL LETTER O WITH STROKE
('\x0C', u'\u00F8'), # LATIN SMALL LETTER O WITH STROKE
('\x0D', u'\u000D'), # CARRIAGE RETURN
('\x0E', u'\u00C5'), # LATIN CAPITAL LETTER A WITH RING ABOVE
('\x0F', u'\u00E5'), # LATIN SMALL LETTER A WITH RING ABOVE
('\x10', u'\u0394'), # GREEK CAPITAL LETTER DELTA
('\x11', u'\u005F'), # LOW LINE
('\x12', u'\u03A6'), # GREEK CAPITAL LETTER PHI
('\x13', u'\u0393'), # GREEK CAPITAL LETTER GAMMA
('\x14', u'\u039B'), # GREEK CAPITAL LETTER LAMDA
('\x15', u'\u03A9'), # GREEK CAPITAL LETTER OMEGA
('\x16', u'\u03A0'), # GREEK CAPITAL LETTER PI
('\x17', u'\u03A8'), # GREEK CAPITAL LETTER PSI
('\x18', u'\u03A3'), # GREEK CAPITAL LETTER SIGMA
('\x19', u'\u0398'), # GREEK CAPITAL LETTER THETA
('\x1A', u'\u039E'), # GREEK CAPITAL LETTER XI
('\x1C', u'\u00C6'), # LATIN CAPITAL LETTER AE
('\x1D', u'\u00E6'), # LATIN SMALL LETTER AE
('\x1E', u'\u00DF'), # LATIN SMALL LETTER SHARP S (German)
('\x1F', u'\u00C9'), # LATIN CAPITAL LETTER E WITH ACUTE
('\x20', u'\u0020'), # SPACE
('\x21', u'\u0021'), # EXCLAMATION MARK
('\x22', u'\u0022'), # QUOTATION MARK
('\x23', u'\u0023'), # NUMBER SIGN
('\x24', u'\u00A4'), # CURRENCY SIGN
('\x25', u'\u0025'), # PERCENT SIGN
('\x26', u'\u0026'), # AMPERSAND
('\x27', u'\u0027'), # APOSTROPHE
('\x28', u'\u0028'), # LEFT PARENTHESIS
('\x29', u'\u0029'), # RIGHT PARENTHESIS
('\x2A', u'\u002A'), # ASTERISK
('\x2B', u'\u002B'), # PLUS SIGN
('\x2C', u'\u002C'), # COMMA
('\x2D', u'\u002D'), # HYPHEN-MINUS
('\x2E', u'\u002E'), # FULL STOP
('\x2F', u'\u002F'), # SOLIDUS
('\x30', u'\u0030'), # DIGIT ZERO
('\x31', u'\u0031'), # DIGIT ONE
('\x32', u'\u0032'), # DIGIT TWO
('\x33', u'\u0033'), # DIGIT THREE
('\x34', u'\u0034'), # DIGIT FOUR
('\x35', u'\u0035'), # DIGIT FIVE
('\x36', u'\u0036'), # DIGIT SIX
('\x37', u'\u0037'), # DIGIT SEVEN
('\x38', u'\u0038'), # DIGIT EIGHT
('\x39', u'\u0039'), # DIGIT NINE
('\x3A', u'\u003A'), # COLON
('\x3B', u'\u003B'), # SEMICOLON
('\x3C', u'\u003C'), # LESS-THAN SIGN
('\x3D', u'\u003D'), # EQUALS SIGN
('\x3E', u'\u003E'), # GREATER-THAN SIGN
('\x3F', u'\u003F'), # QUESTION MARK
('\x40', u'\u00A1'), # INVERTED EXCLAMATION MARK
('\x41', u'\u0041'), # LATIN CAPITAL LETTER A
('\x41', u'\u0391'), # GREEK CAPITAL LETTER ALPHA
('\x42', u'\u0042'), # LATIN CAPITAL LETTER B
('\x42', u'\u0392'), # GREEK CAPITAL LETTER BETA
('\x43', u'\u0043'), # LATIN CAPITAL LETTER C
('\x44', u'\u0044'), # LATIN CAPITAL LETTER D
('\x45', u'\u0045'), # LATIN CAPITAL LETTER E
('\x45', u'\u0395'), # GREEK CAPITAL LETTER EPSILON
('\x46', u'\u0046'), # LATIN CAPITAL LETTER F
('\x47', u'\u0047'), # LATIN CAPITAL LETTER G
('\x48', u'\u0048'), # LATIN CAPITAL LETTER H
('\x48', u'\u0397'), # GREEK CAPITAL LETTER ETA
('\x49', u'\u0049'), # LATIN CAPITAL LETTER I
('\x49', u'\u0399'), # GREEK CAPITAL LETTER IOTA
('\x4A', u'\u004A'), # LATIN CAPITAL LETTER J
('\x4B', u'\u004B'), # LATIN CAPITAL LETTER K
('\x4B', u'\u039A'), # GREEK CAPITAL LETTER KAPPA
('\x4C', u'\u004C'), # LATIN CAPITAL LETTER L
('\x4D', u'\u004D'), # LATIN CAPITAL LETTER M
('\x4D', u'\u039C'), # GREEK CAPITAL LETTER MU
('\x4E', u'\u004E'), # LATIN CAPITAL LETTER N
('\x4E', u'\u039D'), # GREEK CAPITAL LETTER NU
('\x4F', u'\u004F'), # LATIN CAPITAL LETTER O
('\x4F', u'\u039F'), # GREEK CAPITAL LETTER OMICRON
('\x50', u'\u0050'), # LATIN CAPITAL LETTER P
('\x50', u'\u03A1'), # GREEK CAPITAL LETTER RHO
('\x51', u'\u0051'), # LATIN CAPITAL LETTER Q
('\x52', u'\u0052'), # LATIN CAPITAL LETTER R
('\x53', u'\u0053'), # LATIN CAPITAL LETTER S
('\x54', u'\u0054'), # LATIN CAPITAL LETTER T
('\x54', u'\u03A4'), # GREEK CAPITAL LETTER TAU
('\x55', u'\u0055'), # LATIN CAPITAL LETTER U
('\x55', u'\u03A5'), # GREEK CAPITAL LETTER UPSILON
('\x56', u'\u0056'), # LATIN CAPITAL LETTER V
('\x57', u'\u0057'), # LATIN CAPITAL LETTER W
('\x58', u'\u0058'), # LATIN CAPITAL LETTER X
('\x58', u'\u03A7'), # GREEK CAPITAL LETTER CHI
('\x59', u'\u0059'), # LATIN CAPITAL LETTER Y
('\x5A', u'\u005A'), # LATIN CAPITAL LETTER Z
('\x5A', u'\u0396'), # GREEK CAPITAL LETTER ZETA
('\x5B', u'\u00C4'), # LATIN CAPITAL LETTER A WITH DIAERESIS
('\x5C', u'\u00D6'), # LATIN CAPITAL LETTER O WITH DIAERESIS
('\x5D', u'\u00D1'), # LATIN CAPITAL LETTER N WITH TILDE
('\x5E', u'\u00DC'), # LATIN CAPITAL LETTER U WITH DIAERESIS
('\x5F', u'\u00A7'), # SECTION SIGN
('\x60', u'\u00BF'), # INVERTED QUESTION MARK
('\x61', u'\u0061'), # LATIN SMALL LETTER A
('\x62', u'\u0062'), # LATIN SMALL LETTER B
('\x63', u'\u0063'), # LATIN SMALL LETTER C
('\x64', u'\u0064'), # LATIN SMALL LETTER D
('\x65', u'\u0065'), # LATIN SMALL LETTER E
('\x66', u'\u0066'), # LATIN SMALL LETTER F
('\x67', u'\u0067'), # LATIN SMALL LETTER G
('\x68', u'\u0068'), # LATIN SMALL LETTER H
('\x69', u'\u0069'), # LATIN SMALL LETTER I
('\x6A', u'\u006A'), # LATIN SMALL LETTER J
('\x6B', u'\u006B'), # LATIN SMALL LETTER K
('\x6C', u'\u006C'), # LATIN SMALL LETTER L
('\x6D', u'\u006D'), # LATIN SMALL LETTER M
('\x6E', u'\u006E'), # LATIN SMALL LETTER N
('\x6F', u'\u006F'), # LATIN SMALL LETTER O
('\x70', u'\u0070'), # LATIN SMALL LETTER P
('\x71', u'\u0071'), # LATIN SMALL LETTER Q
('\x72', u'\u0072'), # LATIN SMALL LETTER R
('\x73', u'\u0073'), # LATIN SMALL LETTER S
('\x74', u'\u0074'), # LATIN SMALL LETTER T
('\x75', u'\u0075'), # LATIN SMALL LETTER U
('\x76', u'\u0076'), # LATIN SMALL LETTER V
('\x77', u'\u0077'), # LATIN SMALL LETTER W
('\x78', u'\u0078'), # LATIN SMALL LETTER X
('\x79', u'\u0079'), # LATIN SMALL LETTER Y
('\x7A', u'\u007A'), # LATIN SMALL LETTER Z
('\x7B', u'\u00E4'), # LATIN SMALL LETTER A WITH DIAERESIS
('\x7C', u'\u00F6'), # LATIN SMALL LETTER O WITH DIAERESIS
('\x7D', u'\u00F1'), # LATIN SMALL LETTER N WITH TILDE
('\x7E', u'\u00FC'), # LATIN SMALL LETTER U WITH DIAERESIS
('\x7F', u'\u00E0'), # LATIN SMALL LETTER A WITH GRAVE
]
# Escaped characters
escaped_mapping = [
('\x0A', u'\u000C'), # FORM FEED
('\x14', u'\u005E'), # CIRCUMFLEX ACCENT
('\x28', u'\u007B'), # LEFT CURLY BRACKET
('\x29', u'\u007D'), # RIGHT CURLY BRACKET
('\x2F', u'\u005C'), # REVERSE SOLIDUS
('\x3C', u'\u005B'), # LEFT SQUARE BRACKET
('\x3D', u'\u007E'), # TILDE
('\x3E', u'\u005D'), # RIGHT SQUARE BRACKET
('\x40', u'\u007C'), # VERTICAL LINE
('\x65', u'\u20AC'), # EURO SIGN
]
# unicode -> GSM 03.38
regular_encode_dict = dict([(u, g) for g, u in mapping])
# unicode -> escaped GSM 03.38 characters
escape_encode_dict = dict([(u, g) for g, u in escaped_mapping])
# GSM 03.38 -> unicode
# Only first corresponding unicode character is
# taken into account (see 0x41, etc)
regular_decode_dict = {}
for g, u in mapping:
if g not in regular_decode_dict:
regular_decode_dict[g] = u
escape_decode_dict = dict([(g, u) for g, u in escaped_mapping])
def encode(input_, errors='strict'):
"""
:type input_: unicode
:return: string
"""
result = []
for c in input_:
try:
result.append(regular_encode_dict[c])
except KeyError:
if c in escape_encode_dict:
# OK, let's encode it as an escaped characters
result.append('\x1b')
result.append(escape_encode_dict[c])
else:
if errors == 'strict':
raise UnicodeError("Invalid SMS character")
elif errors == 'replace':
result.append(QUESTION_MARK)
elif errors == 'ignore':
pass
else:
raise UnicodeError("Unknown error handling")
ret = ''.join(result)
return ret, len(ret)
def decode(input_, errors='strict'):
"""
:type input_: str
:return: unicode
"""
result = []
index = 0
while index < len(input_):
c = input_[index]
index += 1
if c == '\x1b':
if index < len(input_):
c = input_[index]
index += 1
result.append(escape_decode_dict.get(c, '\xa0'))
else:
result.append('\xa0')
else:
try:
result.append(regular_decode_dict[c])
except KeyError:
# error handling: unassigned byte, must be > 0x7f
if errors == 'strict':
raise UnicodeError("Unrecognized SMS character")
elif errors == 'replace':
result.append('?')
elif errors == 'ignore':
pass
else:
raise UnicodeError("Unknown error handling")
ret = u''.join(result)
return ret, len(ret)
# encodings module API
def getregentry(encoding):
if encoding == 'gsm0338':
return codecs.CodecInfo(name='gsm0338',
encode=encode,
decode=decode)
# Codec registration
codecs.register(getregentry)
def is_gsm_text(text):
"""Returns True if ``text`` can be encoded as gsm text"""
try:
text.encode("gsm0338")
except UnicodeError:
return False
except:
traceback.print_exc(file=sys.stdout)
return False
return True
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