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StrParse.py
366 lines (350 loc) · 15.8 KB
/
StrParse.py
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# Copyright (c) 2016, Samantha Marshall (http://pewpewthespells.com)
# All rights reserved.
#
# https://github.com/samdmarshall/pbPlist
#
# Redistribution and use in source and binary forms, with or without modification,
# are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice, this
# list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation and/or
# other materials provided with the distribution.
#
# 3. Neither the name of Samantha Marshall nor the names of its contributors may
# be used to endorse or promote products derived from this software without
# specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
# OF THE POSSIBILITY OF SUCH DAMAGE.
import sys
import string
if sys.version_info >= (3, 0):
def unichr(character): # pylint: disable=redefined-builtin
return chr(character)
def ConvertNEXTSTEPToUnicode(hex_digits):
# taken from http://ftp.unicode.org/Public/MAPPINGS/VENDORS/NEXT/NEXTSTEP.TXT
conversion = {
"80": "a0", # NO-BREAK SPACE
"81": "c0", # LATIN CAPITAL LETTER A WITH GRAVE
"82": "c1", # LATIN CAPITAL LETTER A WITH ACUTE
"83": "c2", # LATIN CAPITAL LETTER A WITH CIRCUMFLEX
"84": "c3", # LATIN CAPITAL LETTER A WITH TILDE
"85": "c4", # LATIN CAPITAL LETTER A WITH DIAERESIS
"86": "c5", # LATIN CAPITAL LETTER A WITH RING
"87": "c7", # LATIN CAPITAL LETTER C WITH CEDILLA
"88": "c8", # LATIN CAPITAL LETTER E WITH GRAVE
"89": "c9", # LATIN CAPITAL LETTER E WITH ACUTE
"8a": "ca", # LATIN CAPITAL LETTER E WITH CIRCUMFLEX
"8b": "cb", # LATIN CAPITAL LETTER E WITH DIAERESIS
"8c": "cc", # LATIN CAPITAL LETTER I WITH GRAVE
"8d": "cd", # LATIN CAPITAL LETTER I WITH ACUTE
"8e": "ce", # LATIN CAPITAL LETTER I WITH CIRCUMFLEX
"8f": "cf", # LATIN CAPITAL LETTER I WITH DIAERESIS
"90": "d0", # LATIN CAPITAL LETTER ETH
"91": "d1", # LATIN CAPITAL LETTER N WITH TILDE
"92": "d2", # LATIN CAPITAL LETTER O WITH GRAVE
"93": "d3", # LATIN CAPITAL LETTER O WITH ACUTE
"94": "d4", # LATIN CAPITAL LETTER O WITH CIRCUMFLEX
"95": "d5", # LATIN CAPITAL LETTER O WITH TILDE
"96": "d6", # LATIN CAPITAL LETTER O WITH DIAERESIS
"97": "d9", # LATIN CAPITAL LETTER U WITH GRAVE
"98": "da", # LATIN CAPITAL LETTER U WITH ACUTE
"99": "db", # LATIN CAPITAL LETTER U WITH CIRCUMFLEX
"9a": "dc", # LATIN CAPITAL LETTER U WITH DIAERESIS
"9b": "dd", # LATIN CAPITAL LETTER Y WITH ACUTE
"9c": "de", # LATIN CAPITAL LETTER THORN
"9d": "b5", # MICRO SIGN
"9e": "d7", # MULTIPLICATION SIGN
"9f": "f7", # DIVISION SIGN
"a0": "a9", # COPYRIGHT SIGN
"a1": "a1", # INVERTED EXCLAMATION MARK
"a2": "a2", # CENT SIGN
"a3": "a3", # POUND SIGN
"a4": "44", # FRACTION SLASH
"a5": "a5", # YEN SIGN
"a6": "92", # LATIN SMALL LETTER F WITH HOOK
"a7": "a7", # SECTION SIGN
"a8": "a4", # CURRENCY SIGN
"a9": "19", # RIGHT SINGLE QUOTATION MARK
"aa": "1c", # LEFT DOUBLE QUOTATION MARK
"ab": "ab", # LEFT-POINTING DOUBLE ANGLE QUOTATION MARK
"ac": "39", # SINGLE LEFT-POINTING ANGLE QUOTATION MARK
"ad": "3a", # SINGLE RIGHT-POINTING ANGLE QUOTATION MARK
"ae": "01", # LATIN SMALL LIGATURE FI
"af": "02", # LATIN SMALL LIGATURE FL
"b0": "ae", # REGISTERED SIGN
"b1": "13", # EN DASH
"b2": "20", # DAGGER
"b3": "21", # DOUBLE DAGGER
"b4": "b7", # MIDDLE DOT
"b5": "a6", # BROKEN BAR
"b6": "b6", # PILCROW SIGN
"b7": "22", # BULLET
"b8": "1a", # SINGLE LOW-9 QUOTATION MARK
"b9": "1e", # DOUBLE LOW-9 QUOTATION MARK
"ba": "1d", # RIGHT DOUBLE QUOTATION MARK
"bb": "bb", # RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK
"bc": "26", # HORIZONTAL ELLIPSIS
"bd": "30", # PER MILLE SIGN
"be": "ac", # NOT SIGN
"bf": "bf", # INVERTED QUESTION MARK
"c0": "b9", # SUPERSCRIPT ONE
"c1": "cb", # MODIFIER LETTER GRAVE ACCENT
"c2": "b4", # ACUTE ACCENT
"c3": "c6", # MODIFIER LETTER CIRCUMFLEX ACCENT
"c4": "dc", # SMALL TILDE
"c5": "af", # MACRON
"c6": "d8", # BREVE
"c7": "d9", # DOT ABOVE
"c8": "a8", # DIAERESIS
"c9": "b2", # SUPERSCRIPT TWO
"ca": "da", # RING ABOVE
"cb": "b8", # CEDILLA
"cc": "b3", # SUPERSCRIPT THREE
"cd": "dd", # DOUBLE ACUTE ACCENT
"ce": "db", # OGONEK
"cf": "c7", # CARON
"d0": "14", # EM DASH
"d1": "b1", # PLUS-MINUS SIGN
"d2": "bc", # VULGAR FRACTION ONE QUARTER
"d3": "bd", # VULGAR FRACTION ONE HALF
"d4": "be", # VULGAR FRACTION THREE QUARTERS
"d5": "e0", # LATIN SMALL LETTER A WITH GRAVE
"d6": "e1", # LATIN SMALL LETTER A WITH ACUTE
"d7": "e2", # LATIN SMALL LETTER A WITH CIRCUMFLEX
"d8": "e3", # LATIN SMALL LETTER A WITH TILDE
"d9": "e4", # LATIN SMALL LETTER A WITH DIAERESIS
"da": "e5", # LATIN SMALL LETTER A WITH RING ABOVE
"db": "e7", # LATIN SMALL LETTER C WITH CEDILLA
"dc": "e8", # LATIN SMALL LETTER E WITH GRAVE
"dd": "e9", # LATIN SMALL LETTER E WITH ACUTE
"de": "ea", # LATIN SMALL LETTER E WITH CIRCUMFLEX
"df": "eb", # LATIN SMALL LETTER E WITH DIAERESIS
"e0": "ec", # LATIN SMALL LETTER I WITH GRAVE
"e1": "c6", # LATIN CAPITAL LETTER AE
"e2": "ed", # LATIN SMALL LETTER I WITH ACUTE
"e3": "aa", # FEMININE ORDINAL INDICATOR
"e4": "ee", # LATIN SMALL LETTER I WITH CIRCUMFLEX
"e5": "ef", # LATIN SMALL LETTER I WITH DIAERESIS
"e6": "f0", # LATIN SMALL LETTER ETH
"e7": "f1", # LATIN SMALL LETTER N WITH TILDE
"e8": "41", # LATIN CAPITAL LETTER L WITH STROKE
"e9": "d8", # LATIN CAPITAL LETTER O WITH STROKE
"ea": "52", # LATIN CAPITAL LIGATURE OE
"eb": "ba", # MASCULINE ORDINAL INDICATOR
"ec": "f2", # LATIN SMALL LETTER O WITH GRAVE
"ed": "f3", # LATIN SMALL LETTER O WITH ACUTE
"ee": "f4", # LATIN SMALL LETTER O WITH CIRCUMFLEX
"ef": "f5", # LATIN SMALL LETTER O WITH TILDE
"f0": "f6", # LATIN SMALL LETTER O WITH DIAERESIS
"f1": "e6", # LATIN SMALL LETTER AE
"f2": "f9", # LATIN SMALL LETTER U WITH GRAVE
"f3": "fa", # LATIN SMALL LETTER U WITH ACUTE
"f4": "fb", # LATIN SMALL LETTER U WITH CIRCUMFLEX
"f5": "31", # LATIN SMALL LETTER DOTLESS I
"f6": "fc", # LATIN SMALL LETTER U WITH DIAERESIS
"f7": "fd", # LATIN SMALL LETTER Y WITH ACUTE
"f8": "42", # LATIN SMALL LETTER L WITH STROKE
"f9": "f8", # LATIN SMALL LETTER O WITH STROKE
"fa": "53", # LATIN SMALL LIGATURE OE
"fb": "df", # LATIN SMALL LETTER SHARP S
"fc": "fe", # LATIN SMALL LETTER THORN
"fd": "ff", # LATIN SMALL LETTER Y WITH DIAERESIS
"fe": "fd", # .notdef, REPLACEMENT CHARACTER
"ff": "fd", # .notdef, REPLACEMENT CHARACTER
}
return conversion[hex_digits]
def IsOctalNumber(character):
oct_digits = set(string.octdigits)
return set(character).issubset(oct_digits)
def IsHexNumber(character):
hex_digits = set(string.hexdigits)
return set(character).issubset(hex_digits)
def SanitizeCharacter(character):
char = character
escaped_characters = {
'\a': '\\a',
'\b': '\\b',
'\f': '\\f',
'\n': '\\n',
'\r': '\\r',
'\t': '\\t',
'\v': '\\v',
'\"': '\\"',
}
if character in escaped_characters.keys():
char = escaped_characters[character]
return char
# http://www.opensource.apple.com/source/CF/CF-744.19/CFOldStylePList.c See `getSlashedChar()`
def UnQuotifyString(string_data, start_index, end_index): # pylint: disable=too-many-locals,too-many-branches,too-many-statements
formatted_string = ''
extracted_string = string_data[start_index:end_index]
string_length = len(extracted_string)
all_cases = ['0', '1', '2', '3', '4', '5', '6', '7', 'a', 'b', 'f', 'n', 'r', 't', 'v', '\"', '\n', 'U']
index = 0
while index < string_length: # pylint: disable=too-many-nested-blocks
current_char = extracted_string[index]
if current_char == '\\':
next_char = extracted_string[index+1]
if next_char in all_cases:
index += 1
if next_char == 'a':
formatted_string += '\a'
if next_char == 'b':
formatted_string += '\b'
if next_char == 'f':
formatted_string += '\f'
if next_char == 'n':
formatted_string += '\n'
if next_char == 'r':
formatted_string += '\r'
if next_char == 't':
formatted_string += '\t'
if next_char == 'v':
formatted_string += '\v'
if next_char == '"':
formatted_string += '\"'
if next_char == '\n':
formatted_string += '\n'
if next_char == 'U':
starting_index = index + 1
ending_index = starting_index + 4
unicode_numbers = extracted_string[starting_index:ending_index]
for number in unicode_numbers:
index += 1
if IsHexNumber(number) is False: # pragma: no cover
message = 'Invalid unicode sequence on line '+str(LineNumberForIndex(string_data, start_index+index))
raise Exception(message)
formatted_string += unichr(int(unicode_numbers, 16))
if IsOctalNumber(next_char) is True: # https://twitter.com/Catfish_Man/status/658014170055507968
starting_index = index
ending_index = starting_index + 1
for oct_index in range(3):
test_index = starting_index + oct_index
test_oct = extracted_string[test_index]
if IsOctalNumber(test_oct) is True:
ending_index += 1
octal_numbers = extracted_string[starting_index:ending_index]
hex_number = int(octal_numbers, 8)
hex_str = format(hex_number, 'x')
if hex_number >= 0x80:
hex_str = ConvertNEXTSTEPToUnicode(hex_str)
formatted_string += unichr(int('00'+hex_str, 16))
else:
formatted_string += current_char
index += 1
formatted_string += next_char
else:
formatted_string += current_char
index += 1
return formatted_string
def LineNumberForIndex(string_data, current_index):
line_number = 1
index = 0
string_length = len(string_data)
while (index < current_index) and (index < string_length):
current_char = string_data[index]
if IsNewline(current_char) is True:
line_number += 1
index += 1
return line_number
def IsValidUnquotedStringCharacter(character):
if len(character) == 1:
valid_characters = set(string.ascii_letters+string.digits+'_$/:.-')
return set(character).issubset(valid_characters)
else: # pragma: no cover
message = 'The function "IsValidUnquotedStringCharacter()" can only take single characters!'
raise ValueError(message)
def IsSpecialWhitespace(character):
value = ord(character)
result = (value >= 9 and value <= 13) # tab, newline, vt, form feed, carriage return
return result
def IsUnicodeSeparator(character):
value = ord(character)
result = (value == 8232 or value == 8233)
return result
def IsRegularWhitespace(character):
value = ord(character)
result = (value == 32 or IsUnicodeSeparator(character)) # space and Unicode line sep, para sep
return result
def IsDataFormattingWhitespace(character):
value = ord(character)
result = (IsNewline(character) or IsRegularWhitespace(character) or value == 9)
return result
def IsNewline(character):
value = ord(character)
result = (value == 13 or value == 10)
return result
def IsEndOfLine(character):
result = (IsNewline(character) or IsUnicodeSeparator(character))
return result
def IndexOfNextNonSpace(string_data, current_index): # pylint: disable=too-many-branches,too-many-statements
successful = False
found_index = current_index
string_length = len(string_data)
annotation_string = ''
while found_index < string_length: # pylint: disable=too-many-nested-blocks
current_char = string_data[found_index]
if IsSpecialWhitespace(current_char) is True:
found_index += 1
continue
if IsRegularWhitespace(current_char) is True:
found_index += 1
continue
if current_char == '/':
next_index = found_index + 1
if next_index >= string_length:
successful = True
break
else:
next_character = string_data[next_index]
if next_character == '/': # found a line comment "//"
found_index += 1
next_index = found_index
first_pass = True
while next_index < string_length:
test_char = string_data[next_index]
if IsEndOfLine(test_char) is True:
break
else:
if first_pass is False:
annotation_string += test_char
else:
first_pass = False
next_index += 1
found_index = next_index
elif next_character == '*': # found a block comment "/* ... */"
found_index += 1
next_index = found_index
first_pass = True
while next_index < string_length:
test_char = string_data[next_index]
if test_char == '*' and (next_index+1 < string_length) and string_data[next_index+1] == '/':
next_index += 2
break
else:
if first_pass != True:
annotation_string += test_char
else:
first_pass = False
next_index += 1
found_index = next_index
else:
successful = True
break
else:
successful = True
break
result = (successful, found_index, annotation_string)
return result