This file is indexed.

/usr/lib/python3/dist-packages/ly/barcheck.py is in python3-ly 0.9.4-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  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
# This file is part of python-ly, https://pypi.python.org/pypi/python-ly
#
# Copyright (c) 2008 - 2015 by Wilbert Berendsen
#
# 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 St, Fifth Floor, Boston, MA  02110-1301  USA
# See http://www.gnu.org/licenses/ for more information.

"""
Add, check or remove bar checks in selected music.
"""

from __future__ import unicode_literals
from __future__ import print_function

import collections
import itertools

import ly.document
import ly.lex.lilypond


def remove(cursor):
    """Remove bar checks from the selected music."""
    s = ly.document.Source(cursor, tokens_with_position=True)
    prv, cur = None, None
    with cursor.document as d:
        for nxt in itertools.chain(s, (None,)):
            if isinstance(cur, ly.lex.lilypond.PipeSymbol):
                if isinstance(prv, ly.lex.Space):
                    # pipesymbol and adjacent space may be deleted
                    if nxt == '\n':
                        del d[prv.pos:cur.end]
                    elif isinstance(nxt, ly.lex.Space):
                        del d[cur.pos:nxt.end]
                    else:
                        del d[cur.pos:cur.end]
                elif isinstance(nxt, ly.lex.Space):
                    # delete if followed by a space 
                    del d[cur.pos:cur.end]
                else:
                    # replace "|" with a space
                    d[cur.pos:cur.end] = " "
            prv, cur = cur, nxt


class event(object):
    """A limited event type at a certain time."""
    def __init__(self):
        self._nodes = []
        self.cadenza = None
        self.barcheck = False
        self.timesig = None
        self.partial = None
    
    def append(self, node):
        self._nodes.append(node)

    def __repr__(self):
        s = []
        if self.cadenza is not None:
            s.append('cadenza' + ('On' if self.cadenza else 'Off'))
        if self.barcheck:
            s.append('bar')
        if self.timesig is not None:
            s.append('T{0}'.format(self.timesig))
        if self.partial is not None:
            s.append('P{0}'.format(self.partial))
        if self._nodes:
            s.append(repr(self._nodes))
        return '<event {0}>'.format(' '.join(s))


def insert(cursor, music=None):
    """Insert bar checks within the selected range."""
    if music is None:
        import ly.music
        music = ly.music.document(cursor.document)
    
    if len(music) == 0:
        return
    
    if cursor.start:
        n = music.node(cursor.start, 1)
        nodes = itertools.chain((n,), n.forward())
    else:
        nodes = music
    if cursor.end is None:
        iter_nodes = iter
    else:
        predicate = lambda node: node.position < cursor.end
        def iter_nodes(it):
            return itertools.takewhile(predicate, it)
    
    # make time-based lists of events
    event_lists = []
    
    def do_topnode(node):
        if not isinstance(node, ly.music.items.Music):
            for n in node:
                do_topnode(n)
            return
        
        def do_node(node, time, scaling):
            if isinstance(node, (ly.music.items.Durable, ly.music.items.UserCommand)):
                if node.position >= cursor.start:
                    events[time].append(node)
                time += node.length() * scaling
            elif isinstance(node, ly.music.items.TimeSignature):
                events[time].timesig = node.measure_length()
            elif isinstance(node, ly.music.items.Partial):
                events[time].partial = node.length()
            elif isinstance(node, ly.music.items.PipeSymbol):
                events[time].barcheck = True
            elif isinstance(node, ly.music.items.Command) and node.token in (
                    'cadenzaOn', 'cadenzaOff'):
                events[time].cadenza = node.token == 'cadenzaOn'
            elif isinstance(node, ly.music.items.Grace):
                pass
            elif isinstance(node, ly.music.items.LyricMode):
                pass
            elif isinstance(node, ly.music.items.MusicList) and node.simultaneous:
                time = max(do_node(n, time, scaling) for n in iter_nodes(node))
            elif isinstance(node, ly.music.items.Music):
                if isinstance(node, ly.music.items.Scaler):
                    scaling *= node.scaling
                for n in iter_nodes(node):
                    time = do_node(n, time, scaling)
            else:
                do_topnode(node)
            return time
        
        events = collections.defaultdict(event)
        do_node(node, 0, 1)
        event_lists.append(sorted(events.items()))
    
    do_topnode(nodes)
    
    for event_list in event_lists:
        
        # default to 4/4 without pickup
        measure_length = 1
        measure_pos = 0
        
        for time, evt in event_list:
            print(time, evt)