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1 # Part of DML (Digital Music Laboratory)
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2 # Copyright 2014-2015 Samer Abdallah, University of London
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3
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4 # This program is free software; you can redistribute it and/or
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5 # modify it under the terms of the GNU General Public License
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6 # as published by the Free Software Foundation; either version 2
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7 # of the License, or (at your option) any later version.
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8 #
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9 # This program is distributed in the hope that it will be useful,
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10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 # GNU General Public License for more details.
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13 #
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14 # You should have received a copy of the GNU General Public
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15 # License along with this library; if not, write to the Free Software
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16 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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17
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18 # -*- coding: utf-8 -*-
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19 __author__="samer"
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20
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21 from rdflib import Namespace, BNode, Literal, XSD
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22
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23 cla_ns = Namespace("http://dml.org/cla#")
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24 tl_ns = Namespace("http://purl.org/NET/c4dm/timeline.owl#")
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25 event_ns = Namespace("http://purl.org/NET/c4dm/event.owl#")
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26 af_ns = Namespace("http://purl.org/ontology/af/")
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27
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28 def parse_xsd_duration(string):
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29 return float(string[2:len(string)-1])
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30
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31 def event_time_prop(graph,ev,pred):
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32 return parse_xsd_duration(graph.value(graph.value(ev,event_ns.time), pred))
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33
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