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
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
|
#!/usr/bin/python3
# -*- tab-width: 4; indent-tabs-mode: nil; py-indent-offset: 4 -*-
#
# This file is part of the LibreOffice project.
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#
import sys
# sadly need lxml because the python one doesn't preserve namespace prefixes
# and type-detection looks for the string "office:document"
from lxml import etree as ET
#import xml.etree.ElementTree as ET
def get_used_p_styles(root):
elementnames = [
".//{urn:oasis:names:tc:opendocument:xmlns:text:1.0}p",
".//{urn:oasis:names:tc:opendocument:xmlns:text:1.0}h",
".//{urn:oasis:names:tc:opendocument:xmlns:text:1.0}alphabetical-index-entry-template",
".//{urn:oasis:names:tc:opendocument:xmlns:text:1.0}bibliography-entry-template",
".//{urn:oasis:names:tc:opendocument:xmlns:text:1.0}illustration-index-entry-template",
".//{urn:oasis:names:tc:opendocument:xmlns:text:1.0}index-source-style",
".//{urn:oasis:names:tc:opendocument:xmlns:text:1.0}object-index-entry-template",
".//{urn:oasis:names:tc:opendocument:xmlns:text:1.0}table-index-entry-template",
".//{urn:oasis:names:tc:opendocument:xmlns:text:1.0}table-of-content-entry-template",
".//{urn:oasis:names:tc:opendocument:xmlns:text:1.0}user-index-entry-template",
]
# document content
ps = sum([root.findall(e) for e in elementnames], [])
usedpstyles = set()
usedcondstyles = set()
for p in ps:
usedpstyles.add(p.get("{urn:oasis:names:tc:opendocument:xmlns:text:1.0}style-name"))
if p.get("{urn:oasis:names:tc:opendocument:xmlns:text:1.0}cond-style-name"):
usedcondstyles.add(p.get("{urn:oasis:names:tc:opendocument:xmlns:text:1.0}cond-style-name"))
if p.get("{urn:oasis:names:tc:opendocument:xmlns:text:1.0}class-names"):
for style in p.get("{urn:oasis:names:tc:opendocument:xmlns:text:1.0}class-names").split(" "):
usedpstyles.add(style)
for shape in root.findall(".//*[@{urn:oasis:names:tc:opendocument:xmlns:draw:1.0}text-style-name]"):
usedpstyles.add(shape.get("{urn:oasis:names:tc:opendocument:xmlns:draw:1.0}text-style-name"))
for tabletemplate in root.findall(".//*[@{urn:oasis:names:tc:opendocument:xmlns:table:1.0}paragraph-style-name]"):
usedpstyles.add(tabletemplate.get("{urn:oasis:names:tc:opendocument:xmlns:table:1.0}paragraph-style-name"))
for page in root.findall(".//*[@{urn:oasis:names:tc:opendocument:xmlns:style:1.0}register-truth-ref-style-name]"):
usedpstyles.add(page.get("{urn:oasis:names:tc:opendocument:xmlns:style:1.0}register-truth-ref-style-name"))
for form in root.findall(".//*[@{urn:oasis:names:tc:opendocument:xmlns:form:1.0}text-style-name]"):
usedpstyles.add(form.get("{urn:oasis:names:tc:opendocument:xmlns:form:1.0}text-style-name"))
# conditional styles
for condstyle in usedcondstyles:
for map_ in root.findall(".//{urn:oasis:names:tc:opendocument:xmlns:style:1.0}style[@{urn:oasis:names:tc:opendocument:xmlns:style:1.0}family='paragraph'][@{urn:oasis:names:tc:opendocument:xmlns:style:1.0}name='" + condstyle + "']/{urn:oasis:names:tc:opendocument:xmlns:style:1.0}map"):
usedpstyles.add(map_.get("{urn:oasis:names:tc:opendocument:xmlns:style:1.0}apply-style-name"))
# other styles
for notesconfig in root.findall(".//*[@{urn:oasis:names:tc:opendocument:xmlns:text:1.0}default-style-name]"):
usedpstyles.add(notesconfig.get("{urn:oasis:names:tc:opendocument:xmlns:text:1.0}default-style-name"))
return usedpstyles
def add_parent_styles(usedstyles, styles):
size = -1
while size != len(usedstyles):
size = len(usedstyles)
for style in styles:
if style.get("{urn:oasis:names:tc:opendocument:xmlns:style:1.0}name") in usedstyles:
if style.get("{urn:oasis:names:tc:opendocument:xmlns:style:1.0}parent-style-name"):
usedstyles.add(style.get("{urn:oasis:names:tc:opendocument:xmlns:style:1.0}parent-style-name"))
# only for paragraph styles and master-pages
if style.get("{urn:oasis:names:tc:opendocument:xmlns:style:1.0}next-style-name"):
usedstyles.add(style.get("{urn:oasis:names:tc:opendocument:xmlns:style:1.0}next-style-name"))
def remove_unused_styles(root, usedstyles, styles, name):
for style in styles:
print(style.get("{urn:oasis:names:tc:opendocument:xmlns:style:1.0}name"))
if not(style.get("{urn:oasis:names:tc:opendocument:xmlns:style:1.0}name") in usedstyles):
print("removing unused " + name + " " + style.get("{urn:oasis:names:tc:opendocument:xmlns:style:1.0}name"))
# it is really dumb that there is no parent pointer in dom
try:
root.find(".//{urn:oasis:names:tc:opendocument:xmlns:office:1.0}automatic-styles").remove(style)
except ValueError:
root.find(".//{urn:oasis:names:tc:opendocument:xmlns:office:1.0}styles").remove(style)
def collect_all_attribute(usedstyles, attribute):
for element in root.findall(".//*[@" + attribute + "]"):
usedstyles.add(element.get(attribute))
def remove_unused(root):
# 1) find all elements that may reference page styles - this gets rid of some paragaraphs
usedpstyles = get_used_p_styles(root)
print(usedpstyles)
usedtstyles = set()
tables = root.findall(".//{urn:oasis:names:tc:opendocument:xmlns:table:1.0}table")
print(tables)
for table in tables:
usedtstyles.add(table.get("{urn:oasis:names:tc:opendocument:xmlns:table:1.0}style-name"))
pstyles = root.findall(".//{urn:oasis:names:tc:opendocument:xmlns:style:1.0}style[@{urn:oasis:names:tc:opendocument:xmlns:style:1.0}family='paragraph']")
tstyles = root.findall(".//{urn:oasis:names:tc:opendocument:xmlns:style:1.0}style[@{urn:oasis:names:tc:opendocument:xmlns:style:1.0}family='table']")
usedmasterpages = {"Standard"} # assume this is the default on page 1
# only automatic styles may have page breaks in LO, so no need to chase parents or nexts
for pstyle in pstyles:
print(pstyle.get("{urn:oasis:names:tc:opendocument:xmlns:style:1.0}name"))
if pstyle.get("{urn:oasis:names:tc:opendocument:xmlns:style:1.0}name") in usedpstyles:
usedmasterpages.add(pstyle.get("{urn:oasis:names:tc:opendocument:xmlns:style:1.0}master-page-name"))
for tstyle in tstyles:
if tstyle.get("{urn:oasis:names:tc:opendocument:xmlns:style:1.0}name") in usedtstyles:
usedmasterpages.add(tstyle.get("{urn:oasis:names:tc:opendocument:xmlns:style:1.0}master-page-name"))
for node in root.findall(".//*[@{urn:oasis:names:tc:opendocument:xmlns:text:1.0}master-page-name]"):
usedmasterpages.add(node.get("{urn:oasis:names:tc:opendocument:xmlns:text:1.0}master-page-name"))
for node in root.findall(".//*[@{urn:oasis:names:tc:opendocument:xmlns:draw:1.0}master-page-name]"):
usedmasterpages.add(node.get("{urn:oasis:names:tc:opendocument:xmlns:draw:1.0}master-page-name"))
print(usedmasterpages)
# iterate parent/next until no more masterpage is added
size = -1
while size != len(usedmasterpages):
size = len(usedmasterpages)
for mp in root.findall(".//{urn:oasis:names:tc:opendocument:xmlns:style:1.0}master-page"):
if mp.get("{urn:oasis:names:tc:opendocument:xmlns:style:1.0}name") in usedmasterpages:
if mp.get("{urn:oasis:names:tc:opendocument:xmlns:style:1.0}parent-style-name"):
usedmasterpages.add(mp.get("{urn:oasis:names:tc:opendocument:xmlns:style:1.0}parent-style-name"))
if mp.get("{urn:oasis:names:tc:opendocument:xmlns:style:1.0}next-style-name"):
usedmasterpages.add(mp.get("{urn:oasis:names:tc:opendocument:xmlns:style:1.0}next-style-name"))
# remove unused masterpages
for mp in root.findall(".//{urn:oasis:names:tc:opendocument:xmlns:style:1.0}master-page"):
if not(mp.get("{urn:oasis:names:tc:opendocument:xmlns:style:1.0}name") in usedmasterpages):
print("removing unused master page " + mp.get("{urn:oasis:names:tc:opendocument:xmlns:style:1.0}name"))
# there is no way to get the parent element???
root.find(".//{urn:oasis:names:tc:opendocument:xmlns:office:1.0}master-styles").remove(mp)
# 2) remove unused paragraph styles
usedpstyles = get_used_p_styles(root)
add_parent_styles(usedpstyles, pstyles)
remove_unused_styles(root, usedpstyles, pstyles, "paragraph style")
# 3) unused list styles - keep referenced from still used paragraph styles
usedliststyles = set()
for style in root.findall(".//*[@{urn:oasis:names:tc:opendocument:xmlns:style:1.0}list-style-name]"):
usedliststyles.add(style.get("{urn:oasis:names:tc:opendocument:xmlns:style:1.0}list-style-name)"))
for list_ in root.findall(".//{urn:oasis:names:tc:opendocument:xmlns:text:1.0}list[@{urn:oasis:names:tc:opendocument:xmlns:text:1.0}style-name]"):
usedliststyles.add(list_.get("{urn:oasis:names:tc:opendocument:xmlns:text:1.0}style-name"))
for listitem in root.findall(".//{urn:oasis:names:tc:opendocument:xmlns:text:1.0}list-item[@{urn:oasis:names:tc:opendocument:xmlns:text:1.0}style-override]"):
usedliststyles.add(listitem.get("{urn:oasis:names:tc:opendocument:xmlns:text:1.0}style-override"))
for numpara in root.findall(".//{urn:oasis:names:tc:opendocument:xmlns:text:1.0}numbered-paragraph[@{urn:oasis:names:tc:opendocument:xmlns:text:1.0}style-name]"):
usedliststyles.add(list_.get("{urn:oasis:names:tc:opendocument:xmlns:text:1.0}style-name"))
# ignore ones that are children of style:graphic-properties, those must be handled as the containing style
# there is no inheritance for these
liststyles = root.findall("./*/{urn:oasis:names:tc:opendocument:xmlns:text:1.0}list-style")
remove_unused_styles(root, usedliststyles, liststyles, "list style")
# 4) unused text styles
usedtextstyles = set()
usedsectionstyles = set()
usedrubystyles = set()
sections = {
"{urn:oasis:names:tc:opendocument:xmlns:text:1.0}alphabetical-index",
"{urn:oasis:names:tc:opendocument:xmlns:text:1.0}bibliography",
"{urn:oasis:names:tc:opendocument:xmlns:text:1.0}illustration-index",
"{urn:oasis:names:tc:opendocument:xmlns:text:1.0}index-title",
"{urn:oasis:names:tc:opendocument:xmlns:text:1.0}object-index",
"{urn:oasis:names:tc:opendocument:xmlns:text:1.0}section",
"{urn:oasis:names:tc:opendocument:xmlns:text:1.0}table-of-content",
"{urn:oasis:names:tc:opendocument:xmlns:text:1.0}table-index",
"{urn:oasis:names:tc:opendocument:xmlns:text:1.0}user-index",
}
texts = {
"{urn:oasis:names:tc:opendocument:xmlns:text:1.0}a",
"{urn:oasis:names:tc:opendocument:xmlns:text:1.0}index-entry-bibliography",
"{urn:oasis:names:tc:opendocument:xmlns:text:1.0}index-entry-chapter",
"{urn:oasis:names:tc:opendocument:xmlns:text:1.0}index-entry-link-end",
"{urn:oasis:names:tc:opendocument:xmlns:text:1.0}index-entry-link-start",
"{urn:oasis:names:tc:opendocument:xmlns:text:1.0}index-entry-page-number",
"{urn:oasis:names:tc:opendocument:xmlns:text:1.0}index-entry-span",
"{urn:oasis:names:tc:opendocument:xmlns:text:1.0}index-entry-tab-stop",
"{urn:oasis:names:tc:opendocument:xmlns:text:1.0}index-entry-text",
"{urn:oasis:names:tc:opendocument:xmlns:text:1.0}index-title-template",
"{urn:oasis:names:tc:opendocument:xmlns:text:1.0}linenumbering-configuration",
"{urn:oasis:names:tc:opendocument:xmlns:text:1.0}list-level-style-number",
"{urn:oasis:names:tc:opendocument:xmlns:text:1.0}list-level-style-bullet",
"{urn:oasis:names:tc:opendocument:xmlns:text:1.0}outline-level-style",
"{urn:oasis:names:tc:opendocument:xmlns:text:1.0}ruby-text",
"{urn:oasis:names:tc:opendocument:xmlns:text:1.0}span",
}
for element in root.findall(".//*[@{urn:oasis:names:tc:opendocument:xmlns:text:1.0}style-name]"):
style = element.get("{urn:oasis:names:tc:opendocument:xmlns:text:1.0}style-name")
if element.tag == "{urn:oasis:names:tc:opendocument:xmlns:text:1.0}ruby":
usedrubystyles.add(style)
elif element.tag in sections:
usedsectionstyles.add(style)
elif element.tag in texts:
usedtextstyles.add(style)
collect_all_attribute(usedtextstyles, "{urn:oasis:names:tc:opendocument:xmlns:style:1.0}style-name")
collect_all_attribute(usedtextstyles, "{urn:oasis:names:tc:opendocument:xmlns:style:1.0}leader-text-style")
collect_all_attribute(usedtextstyles, "{urn:oasis:names:tc:opendocument:xmlns:style:1.0}text-line-through-text-style")
collect_all_attribute(usedtextstyles, "{urn:oasis:names:tc:opendocument:xmlns:text:1.0}visited-style-name")
collect_all_attribute(usedtextstyles, "{urn:oasis:names:tc:opendocument:xmlns:text:1.0}main-entry-style-name")
collect_all_attribute(usedtextstyles, "{urn:oasis:names:tc:opendocument:xmlns:text:1.0}citation-style-name")
collect_all_attribute(usedtextstyles, "{urn:oasis:names:tc:opendocument:xmlns:text:1.0}citation-body-style-name")
for span in root.findall(".//{urn:oasis:names:tc:opendocument:xmlns:text:1.0}span[@{urn:oasis:names:tc:opendocument:xmlns:text:1.0}class-names]"):
for style in span.get("{urn:oasis:names:tc:opendocument:xmlns:text:1.0}class-names").split(" "):
usedtextstyles.add(style)
textstyles = root.findall(".//{urn:oasis:names:tc:opendocument:xmlns:style:1.0}style[@{urn:oasis:names:tc:opendocument:xmlns:style:1.0}family='text']")
add_parent_styles(usedtextstyles, textstyles)
remove_unused_styles(root, usedtextstyles, textstyles, "text style")
# 5) unused ruby styles - can't have parents?
rubystyles = root.findall(".//{urn:oasis:names:tc:opendocument:xmlns:style:1.0}style[@{urn:oasis:names:tc:opendocument:xmlns:style:1.0}family='ruby']")
remove_unused_styles(root, usedrubystyles, rubystyles, "ruby style")
# 6) unused section styles - can't have parents?
sectionstyles = root.findall(".//{urn:oasis:names:tc:opendocument:xmlns:style:1.0}style[@{urn:oasis:names:tc:opendocument:xmlns:style:1.0}family='section']")
remove_unused_styles(root, usedsectionstyles, sectionstyles, "section style")
# TODO 6 other styles
# 13) unused font-face-decls
usedfonts = set()
collect_all_attribute(usedfonts, "{urn:oasis:names:tc:opendocument:xmlns:style:1.0}font-name")
collect_all_attribute(usedfonts, "{urn:oasis:names:tc:opendocument:xmlns:style:1.0}font-name-asian")
collect_all_attribute(usedfonts, "{urn:oasis:names:tc:opendocument:xmlns:style:1.0}font-name-complex")
fonts = root.findall(".//{urn:oasis:names:tc:opendocument:xmlns:style:1.0}font-face")
for font in fonts:
if not(font.get("{urn:oasis:names:tc:opendocument:xmlns:style:1.0}name") in usedfonts):
print("removing unused font-face " + font.get("{urn:oasis:names:tc:opendocument:xmlns:style:1.0}name"))
root.find(".//{urn:oasis:names:tc:opendocument:xmlns:office:1.0}font-face-decls").remove(font)
# 14) remove rsid attributes
styles = root.findall(".//{urn:oasis:names:tc:opendocument:xmlns:style:1.0}style")
for style in styles:
tp = style.find(".//{urn:oasis:names:tc:opendocument:xmlns:style:1.0}text-properties")
if tp is not None:
if "{http://openoffice.org/2009/office}rsid" in tp.attrib:
print("removing rsid from " + style.get("{urn:oasis:names:tc:opendocument:xmlns:style:1.0}name"))
del tp.attrib["{http://openoffice.org/2009/office}rsid"]
if "{http://openoffice.org/2009/office}paragraph-rsid" in tp.attrib:
print("removing paragraph-rsid from " + style.get("{urn:oasis:names:tc:opendocument:xmlns:style:1.0}name"))
del tp.attrib["{http://openoffice.org/2009/office}paragraph-rsid"]
# remove office:settings
settings = root.find(".//{urn:oasis:names:tc:opendocument:xmlns:office:1.0}settings")
if settings is not None:
root.remove(settings)
# scripts are almost never needed
scripts = root.find(".//{urn:oasis:names:tc:opendocument:xmlns:office:1.0}scripts")
if scripts is not None:
root.remove(scripts)
# TODO: replace embedded image with some tiny one
# TODO: perhaps replace text with xxx (optionally)?
if __name__ == "__main__":
infile = sys.argv[1]
outfile = sys.argv[2]
dom = ET.parse(infile)
root = dom.getroot()
remove_unused(root)
# write output
dom.write(outfile, encoding='utf-8', xml_declaration=True)
"""
TODO
chart:style-name
-> chart
db:style-name
-> table-column, table
db:default-row-style-name
-> table-row
db:default-cell-style-name
-> cell
draw:style-name
-> graphic
-> drawing-page (only draw:page, presentation:notes, style:handout-master, style:master-page)
presentation:style-name
-> presentation
style:data-style-name
-> data style
presentation:presentation-page-layout-name
-> presentation-page-layout
style:page-layout-name
-> "page layout style" ?
style:percentage-data-style-name
-> data style
table:default-cell-style-name
-> cell
draw:class-names
-> graphic
presentation:class-names
-> presentation
draw:stroke-dash-names
-> draw:stroke-dash
draw:fill-gradient-name
-> gradient
draw:fill-hatch-name
-> hatch
draw:fill-image-name
-> bitmap
draw:opacity-name
-> gradient
draw:stroke-dash
-> draw:stroke-dash
draw:marker-start
draw:marker-end
"""
# vim: set shiftwidth=4 softtabstop=4 expandtab:
|
