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load.py
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1 #!/usr/bin/python
2 # -*- coding: utf-8 -*-
3 # Copyright (C) 2007-2008 Søren Roug, European Environment Agency
4 #
5 # This library is free software; you can redistribute it and/or
6 # modify it under the terms of the GNU Lesser General Public
7 # License as published by the Free Software Foundation; either
8 # version 2.1 of the License, or (at your option) any later version.
9 #
10 # This library is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 # Lesser General Public License for more details.
14 #
15 # You should have received a copy of the GNU Lesser General Public
16 # License along with this library; if not, write to the Free Software
17 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18 #
19 # Contributor(s):
20 #
21
22 # This script is to be embedded in opendocument.py later
23 # The purpose is to read an ODT/ODP/ODS file and create the datastructure
24 # in memory. The user should then be able to make operations and then save
25 # the structure again.
26
27 from xml.sax import make_parser,handler
28 from xml.sax.xmlreader import InputSource
29 import xml.sax.saxutils
30 from element import Element
31 from namespaces import OFFICENS
32 try:
33 from cStringIO import StringIO
34 except ImportError:
35 from io import StringIO
36
37 #
38 # Parse the XML files
39 #
40 ##
41 # Extract headings from content.xml of an ODT file
42 class LoadParser(handler.ContentHandler):
43 triggers = (
44 (OFFICENS, 'automatic-styles'), (OFFICENS, 'body'),
45 (OFFICENS, 'font-face-decls'), (OFFICENS, 'master-styles'),
46 (OFFICENS, 'meta'), (OFFICENS, 'scripts'),
47 (OFFICENS, 'settings'), (OFFICENS, 'styles') )
48
49 def __init__(self, document):
50 self.doc = document
51 self.data = []
52 self.level = 0
53 self.parse = False
54
55 def characters(self, data):
56 if self.parse == False:
57 return
58 self.data.append(data)
59
60 def startElementNS(self, tag, qname, attrs):
61 if tag in self.triggers:
62 self.parse = True
63 if self.doc._parsing != "styles.xml" and tag == (OFFICENS, 'font-face-decls'):
64 self.parse = False
65 if self.parse == False:
66 return
67
68 self.level = self.level + 1
69 # Add any accumulated text content
70 content = ''.join(self.data)
71 if len(content.strip()) > 0:
72 self.parent.addText(content, check_grammar=False)
73 self.data = []
74 # Create the element
75 attrdict = {}
76 for (att,value) in attrs.items():
77 attrdict[att] = value
78 try:
79 e = Element(qname = tag, qattributes=attrdict, check_grammar=False)
80 self.curr = e
81 except AttributeError as v:
82 print ("Error: %s" % v)
83
84 if tag == (OFFICENS, 'automatic-styles'):
85 e = self.doc.automaticstyles
86 elif tag == (OFFICENS, 'body'):
87 e = self.doc.body
88 elif tag == (OFFICENS, 'master-styles'):
89 e = self.doc.masterstyles
90 elif tag == (OFFICENS, 'meta'):
91 e = self.doc.meta
92 elif tag == (OFFICENS,'scripts'):
93 e = self.doc.scripts
94 elif tag == (OFFICENS,'settings'):
95 e = self.doc.settings
96 elif tag == (OFFICENS,'styles'):
97 e = self.doc.styles
98 elif self.doc._parsing == "styles.xml" and tag == (OFFICENS, 'font-face-decls'):
99 e = self.doc.fontfacedecls
100 elif hasattr(self,'parent'):
101 self.parent.addElement(e, check_grammar=False)
102 self.parent = e
103
104
105 def endElementNS(self, tag, qname):
106 if self.parse == False:
107 return
108 self.level = self.level - 1
109 str = ''.join(self.data)
110 if len(str.strip()) > 0:
111 self.curr.addText(str, check_grammar=False)
112 self.data = []
113 self.curr = self.curr.parentNode
114 self.parent = self.curr
115 if tag in self.triggers:
116 self.parse = False
odf.load.LoadParser.doc
doc
Definition: load.py:50
odf.load.LoadParser.data
data
Definition: load.py:51
odf.load.LoadParser.characters
def characters
Definition: load.py:55
odf.load.LoadParser.triggers
tuple triggers
Definition: load.py:43
odf.load.LoadParser.endElementNS
def endElementNS
Definition: load.py:105
odf.load.LoadParser.parse
parse
Definition: load.py:53
odf.load.LoadParser.startElementNS
def startElementNS
Definition: load.py:60
odf.load.LoadParser.level
level
Definition: load.py:52
odf.load.LoadParser.__init__
def __init__
Definition: load.py:49
odf.load.LoadParser
Extract headings from content.xml of an ODT file.
Definition: load.py:42
odf.load.LoadParser.parent
parent
Definition: load.py:102
odf.load.LoadParser.curr
curr
Definition: load.py:80