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
|
# -*- coding: utf-8 -*-
""" This is a docutils RTF Writer
We just need a few features so it shouldn't be too difficult
This was made possible by:
http://search.cpan.org/~sburke/RTF-Writer/lib/RTF/Cookbook.pod
from:
Sean M. Burke, sburke@cpan.org
Author: Benoît Allard
Contact: benoit@aeteurope.nl
Copyright: This module has been placed in the public domain.
"""
from docutils import writers, nodes
class Writer(writers.Writer):
supported = ('rtf',)
output = None
def __init__(self):
writers.Writer.__init__(self)
self._translator_class = RTFTranslator
def translate(self):
visitor = self._translator_class(self.document)
self.document.walkabout(visitor)
self.output = visitor.astext()
def toansi(text):
""" Encode special characters """
trans = {'{': r'\{',
'}': r'\}',
'\\': r'\\',
}
out = ''
for char in text:
if char in trans:
out += trans[char]
elif ord(char) < 127:
out += char
else:
out += r"\'%x" % ord(char)
return out
FONT_NAME = 'Tahoma'
# Unit is half point
FONT_SIZE = {
-1: 18, # text
0: 24, # title
1: 28, # first heading
2: 24, # second heading
}
PAR_INDENT = 480
def indent(fn):
def wrapper(self, *args, **kwargs):
self.par_level += 1
return fn(self, *args, **kwargs)
return wrapper
def dedent(fn):
def wrapper(self, *args, **kwargs):
self.par_level -= 1
return fn(self, *args, **kwargs)
return wrapper
class RTFTranslator(nodes.NodeVisitor):
def __init__(self, document):
nodes.NodeVisitor.__init__(self, document)
self.body = []
self.section_level = 0
self.par_level = -1
self.bullets = [] # stack of the currents bullets
self.bullet = None # next one to add to the next paragraph
def astext(self):
return '\n'.join(self.body)
def visit_document(self, node):
self.body.append(r'{\rtf1\ansi\deff0{\fonttbl{\f0 %s;}}' % FONT_NAME)
self.body.append(r'\deflang1033\widowctrl\fs%d' % FONT_SIZE[-1])
def depart_document(self, node):
self.body.append('}')
def visit_title(self, node):
if isinstance(node.parent, nodes.document):
""" doc title """
self.body.append(r'{\pard\par\qc\f0\fs%d\b' % FONT_SIZE[0])
elif isinstance(node.parent, nodes.section):
level = self.section_level
self.body.append(r'{\pard\par\f0\fs%d\b' % FONT_SIZE[level])
def depart_title(self, node):
self.body.append(r'\par}')
def visit_Text(self, node):
if self.bullet is not None:
self.body.append(self.bullet+'\~')
self.bullet = None
self.body.append(toansi(node.astext()))
def depart_Text(self, node):
pass
def visit_strong(self, node):
self.body.append(r'{\b')
def depart_strong(self, node):
self.body.append('}')
def visit_section(self, node):
self.section_level += 1
def depart_section(self, node):
self.section_level -= 1
@indent
def visit_paragraph(self, node):
self.body.append(r'{\pard\par\f0\qj\li%d' % (PAR_INDENT * self.par_level))
if self.bullet is not None:
self.body.append(r'\fi-%d' % (PAR_INDENT / 2))
@dedent
def depart_paragraph(self, node):
self.body.append('\par}')
@indent
def visit_bullet_list(self, node):
self.bullets.append(node['bullet'])
@dedent
def depart_bullet_list(self, node):
self.bullets.pop()
def visit_list_item(self, node):
self.bullet = self.bullets[-1]
def depart_list_item(self, node):
pass
@indent
def visit_block_quote(self, node):
pass
@dedent
def depart_block_quote(self, node):
pass
def visit_reference(self, node):
if 'refuri' in node:
self.body.append(r'{\field{\*\fldinst{HYPERLINK "%s"}}{\fldrslt{\ul' % node['refuri'])
else:
# to balance parenthesis
self.body.append(r'{{{')
def depart_reference(self, node):
self.body.append('}}}')
def visit_docinfo(self, node):
self.body.append(r'{\info')
def depart_docinfo(self, node):
self.body.append('}')
def visit_author(self, node):
self.body.append(r'{\author')
def depart_author(self, node):
self.body.append(r'}')
if __name__ == "__main__":
""" To test the writer """
from docutils.core import publish_string
f_in = open('test.rtf', 'rb')
rtf = publish_string(f_in.read(), writer=Writer())
f_in.close()
print rtf
f_out = open('a.out', 'wb')
f_out.write(rtf)
f_out.close()
|
