1
# Copyright (C) 2008, 2009, 2010 Canonical Ltd
1
# Copyright (C) 2008 Canonical Ltd
3
3
# This program is free software; you can redistribute it and/or modify
4
4
# it under the terms of the GNU General Public License as published by
13
13
# You should have received a copy of the GNU General Public License
14
14
# along with this program; if not, write to the Free Software
15
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
15
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18
18
"""B+Tree index parsing."""
20
from __future__ import absolute_import
22
from bzrlib import static_tuple
25
20
def _parse_leaf_lines(bytes, key_length, ref_list_length):
26
21
lines = bytes.split('\n')
28
as_st = static_tuple.StaticTuple.from_sequence
29
stuple = static_tuple.StaticTuple
30
23
for line in lines[1:]:
33
26
elements = line.split('\0', key_length)
35
key = as_st(elements[:key_length]).intern()
28
key = tuple(elements[:key_length])
36
29
line = elements[-1]
37
30
references, value = line.rsplit('\0', 1)
38
31
if ref_list_length:
40
33
for ref_string in references.split('\t'):
41
ref_list = as_st([as_st(ref.split('\0')).intern()
42
for ref in ref_string.split('\r') if ref])
43
ref_lists.append(ref_list)
44
ref_lists = as_st(ref_lists)
45
node_value = stuple(value, ref_lists)
34
ref_lists.append(tuple([
35
tuple(ref.split('\0')) for ref in ref_string.split('\r') if ref
37
ref_lists = tuple(ref_lists)
38
node_value = (value, ref_lists)
47
node_value = stuple(value, stuple())
48
# No need for StaticTuple here as it is put into a dict
40
node_value = (value, ())
49
41
nodes.append((key, node_value))