This file is indexed.

/usr/lib/python2.7/dist-packages/aniso8601/duration.py is in python-aniso8601 0.83-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
# -*- coding: utf-8 -*-

#Copyright 2013 Brandon Nielsen
#
#    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 3 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, see <http://www.gnu.org/licenses/>.

import datetime

from date import parse_date
from time import parse_time

def parse_duration(isodurationstr):
    #Given a string representing an ISO 8601 duration, return a
    #datetime.timedelta that matches the given duration. Valid formts are:
    #
    #PnYnMnDTnHnMnS (or any reduced precision equivalent)
    #P<date>T<time>

    if isodurationstr[0] != 'P':
        raise ValueError('String is not a valid ISO8601 duration.')

    #If Y, M, D, H, or S are in the string, assume it is a specified duration
    if isodurationstr.find('Y') != -1 or isodurationstr.find('M') != -1 or isodurationstr.find('W') != -1 or isodurationstr.find('D') != -1 or isodurationstr.find('H') != -1 or isodurationstr.find('S') != -1:
        return parse_duration_prescribed(isodurationstr)
    else:
        return parse_duration_combined(isodurationstr)

def parse_duration_prescribed(durationstr):
    #durationstr can be of the form PnYnMnDTnHnMnS or PnW

    #Make sure only the lowest order element has decimal precision
    if durationstr.count('.') > 1:
        raise ValueError('String is not a valid ISO8601 duration.')
    elif durationstr.count('.') == 1:
        #There should only ever be 1 letter after a decimal if there is more
        #then one, the string is invalid
        lettercount = 0;

        for character in durationstr.split('.')[1]:
            if character.isalpha() == True:
                lettercount += 1

            if lettercount > 1:
                raise ValueError('String is not a valid ISO8601 duration.')

    #Parse the elements of the duration
    if durationstr.find('T') == -1:
        if durationstr.find('Y') != -1:
            years = _parse_duration_element(durationstr, 'Y')
        else:
            years = 0

        if durationstr.find('M') != -1:
            months = _parse_duration_element(durationstr, 'M')
        else:
            months = 0

        if durationstr.find('W') != -1:
            weeks = _parse_duration_element(durationstr, 'W')
        else:
            weeks = 0

        if durationstr.find('D') != -1:
            days = _parse_duration_element(durationstr, 'D')
        else:
            days = 0

        #No hours, minutes or seconds
        hours = 0
        minutes = 0
        seconds = 0
    else:
        firsthalf = durationstr[:durationstr.find('T')]
        secondhalf = durationstr[durationstr.find('T'):]

        if  firsthalf.find('Y') != -1:
            years = _parse_duration_element(firsthalf, 'Y')
        else:
            years = 0

        if firsthalf.find('M') != -1:
            months = _parse_duration_element(firsthalf, 'M')
        else:
            months = 0

        if durationstr.find('W') != -1:
            weeks = _parse_duration_element(durationstr, 'W')
        else:
            weeks = 0

        if firsthalf.find('D') != -1:
            days = _parse_duration_element(firsthalf, 'D')
        else:
            days = 0

        if secondhalf.find('H') != -1:
            hours = _parse_duration_element(secondhalf, 'H')
        else:
            hours = 0

        if secondhalf.find('M') != -1:
            minutes = _parse_duration_element(secondhalf, 'M')
        else:
            minutes = 0

        if secondhalf.find('S') != -1:
            seconds = _parse_duration_element(secondhalf, 'S')
        else:
            seconds = 0

    #Note that weeks can be handled without conversion to days
    totaldays = years * 365 + months * 30 + days

    return datetime.timedelta(weeks=weeks, days=totaldays, hours=hours, minutes=minutes, seconds=seconds)

def parse_duration_combined(durationstr):
    #Period of the form P<date>T<time>

    #Split the string in to its component parts
    datepart, timepart = durationstr[1:].split('T') #We skip the 'P'

    datevalue = parse_date(datepart)
    timevalue = parse_time(timepart)

    totaldays = datevalue.year * 365 + datevalue.month * 30 + datevalue.day

    return datetime.timedelta(days=totaldays, hours=timevalue.hour, minutes=timevalue.minute, seconds=timevalue.second, microseconds=timevalue.microsecond)

def _parse_duration_element(durationstr, elementstr):
    #Extracts the specified portion of a duration, for instance, given:
    #durationstr = 'T4H5M6.1234S'
    #elementstr = 'H'
    #
    #returns 4
    #
    #Note that the string must start with a character, so its assumed the
    #full duration string would be split at the 'T'

    durationstartindex = 0
    durationendindex = durationstr.find(elementstr)

    for characterindex in xrange(durationendindex - 1, 0, -1):
        if durationstr[characterindex].isalpha() == True:
            durationstartindex = characterindex
            break

    durationstartindex += 1

    if ',' in durationstr:
        #Replace the comma with a 'full-stop'
        durationstr = durationstr.replace(',', '.')

    return float(durationstr[durationstartindex:durationendindex])