root / pkpgcounter / trunk / pkpgpdls / ooo.py @ 357

Revision 357, 3.0 kB (checked in by jerome, 16 years ago)

Added missing docstrings, thanks to pylint.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
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1#! /usr/bin/env python
2# -*- coding: ISO-8859-15 -*-
3#
4# pkpgcounter : a generic Page Description Language parser
5#
6# (c) 2003, 2004, 2005, 2006 Jerome Alet <alet@librelogiciel.com>
7# This program is free software; you can redistribute it and/or modify
8# it under the terms of the GNU General Public License as published by
9# the Free Software Foundation; either version 2 of the License, or
10# (at your option) any later version.
11#
12# This program is distributed in the hope that it will be useful,
13# but WITHOUT ANY WARRANTY; without even the implied warranty of
14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15# GNU General Public License for more details.
16#
17# You should have received a copy of the GNU General Public License
18# along with this program; if not, write to the Free Software
19# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
20#
21# $Id$
22#
23
24"""This modules implements a page counter for OpenDocument documents."""
25
26import sys
27import zipfile
28
29import pdlparser
30
31class Parser(pdlparser.PDLParser) :
32    """A parser for OpenOffice.org documents."""
33    def isValid(self) :       
34        """Returns 1 if data is DVI, else 0."""
35        if self.firstblock[:2] == "PK" :
36            try :
37                self.archive = zipfile.ZipFile(self.infile)
38                self.contentxml = self.archive.read("content.xml")
39                self.metaxml = self.archive.read("meta.xml")
40            except :   
41                return 0
42            else :
43                self.logdebug("DEBUG: Input file is in the OpenOffice.org format.")
44                return 1
45        else :   
46            return 0
47           
48    def getJobSize(self) :
49        """Counts pages in an OpenOffice.org document.
50       
51           Algorithm by Jerome Alet.
52        """
53        pagecount = 0
54        try :
55            # First try with Text documents
56            index = self.metaxml.index("meta:page-count=")
57            pagecount = int(self.metaxml[index:].split('"')[1])
58        except :
59            # Now try with Impress documents
60            pagecount = self.contentxml.count("<draw:page ")
61            if not pagecount :
62                # Probably a Spreadsheet document
63                raise pdlparser.PDLParserError, "OpenOffice.org's spreadsheet documents are not yet supported."
64        return pagecount
65       
66def test() :       
67    """Test function."""
68    if (len(sys.argv) < 2) or ((not sys.stdin.isatty()) and ("-" not in sys.argv[1:])) :
69        sys.argv.append("-")
70    totalsize = 0   
71    for arg in sys.argv[1:] :
72        if arg == "-" :
73            infile = sys.stdin
74            mustclose = 0
75        else :   
76            infile = open(arg, "rb")
77            mustclose = 1
78        try :
79            parser = Parser(infile, debug=1)
80            totalsize += parser.getJobSize()
81        except pdlparser.PDLParserError, msg :   
82            sys.stderr.write("ERROR: %s\n" % msg)
83            sys.stderr.flush()
84        if mustclose :   
85            infile.close()
86    print "%s" % totalsize
87   
88if __name__ == "__main__" :   
89    test()
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