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
|
# Copyright (C) 2010 Canonical Ltd
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
"""Simple parser for bzr's NEWS file.
Simple as this is, it's a bit over-powered for news_merge's needs, which only
cares about 'bullet' and 'everything else'.
This module can be run as a standalone Python program; pass it a filename and
it will print the parsed form of a file (a series of 2-tuples, see
simple_parse's docstring).
"""
def simple_parse(content):
"""Returns blocks, where each block is a 2-tuple (kind, text).
:kind: one of 'heading', 'release', 'section', 'empty' or 'text'.
:text: a str, including newlines.
"""
blocks = content.split('\n\n')
for block in blocks:
if block.startswith('###'):
# First line is ###...: Top heading
yield 'heading', block
continue
last_line = block.rsplit('\n', 1)[-1]
if last_line.startswith('###'):
# last line is ###...: 2nd-level heading
yield 'release', block
elif last_line.startswith('***'):
# last line is ***...: 3rd-level heading
yield 'section', block
elif block.startswith('* '):
# bullet
yield 'bullet', block
elif block.strip() == '':
# empty
yield 'empty', block
else:
# plain text
yield 'text', block
if __name__ == '__main__':
import sys
content = open(sys.argv[1], 'rb').read()
for result in simple_parse(content):
print result
|