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
|
package Xconfig::parse; # $Id$
use diagnostics;
use strict;
use common;
sub read_XF86Config {
my ($file) = @_;
my $raw_X = raw_from_file($file);
from_raw(@$raw_X);
$raw_X;
}
sub write_XF86Config {
my ($raw_X, $file) = @_;
my @blocks = map { raw_to_string(before_to_string({ %$_ }, 0)) } @$raw_X;
@blocks ? output($file, @blocks) : unlink $file;
}
sub read_XF86Config_from_string {
my ($s) = @_;
my $raw_X = raw_from_file('-', [ split "\n", $s ]);
from_raw(@$raw_X);
$raw_X;
}
#-###############################################################################
#- raw reading/saving
#-###############################################################################
sub raw_from_file { #- internal
my ($file, $lines) = @_;
my $raw_X = [];
$lines ||= [ cat_($file) ];
my $line;
my $weird = sub { warn "$file:$line: strange $_[0]" };
my ($comment, $obj, @objs);
my $attach_comment = sub {
$obj || @objs or warn "$file:$line: can't attach comment\n";
if ($comment) {
$comment =~ s/\n+$/\n/;
($obj || $objs[0])->{$_[0] . '_comment'} = $comment;
$comment = '';
}
};
foreach (@$lines) {
$line++;
s/^\s*//; s/\s*$//;
if (/^$/) {
$comment .= "\n" if $comment;
next;
} elsif (/^#\W/ || /^#$/) {
s/^#\s+/# /;
$comment .= "$_\n";
next;
}
if (/^Section\s+"(.*)"/i) {
die "$file:$line: missing EndSection\n" if @objs;
my $e = { name => $1, l => [], kind => 'Section' };
push @$raw_X, $e;
unshift @objs, $e; $obj = '';
$attach_comment->('pre');
} elsif (/^Subsection\s+"(.*)"/i) {
die "$file:$line: missing EndSubsection\n" if @objs && $objs[0]{kind} eq 'Subsection';
die "$file:$line: not in Section\n" if !@objs || $objs[0]{kind} ne 'Section';
my $e = { name => $1, l => [], kind => 'Subsection' };
push @{$objs[0]{l}}, $e;
unshift @objs, $e; $obj = '';
$attach_comment->('pre');
} elsif (/^EndSection/i) {
die "$file:$line: not in Section\n" if !@objs || $objs[0]{kind} ne 'Section';
$attach_comment->('post');
shift @objs; $obj = '';
} elsif (/^EndSubsection/i) {
die "$file:$line: not in Subsection\n" if !@objs || $objs[0]{kind} ne 'Subsection';
$attach_comment->('post');
my $e = shift @objs; $obj = '';
} else {
die "$file:$line: not in Section\n" if !@objs;
my $commented = s/^#//;
my $comment_on_line;
s/(\s*#.*)/$comment_on_line = $1; ''/e;
if (/^$/) {
die "$file:$line: weird";
}
(my $name, my $Option, $_) =
/^Option\s*"(.*?)"(.*)/ ? ($1, 1, $2) : /^(\S+)(.*)/ ? ($1, 0, $2) : internal_error($_);
my ($val) = /(\S.*)/;
my %e = (Option => $Option, commented => $commented, comment_on_line => $comment_on_line, pre_comment => $comment);
$comment = '';
$obj = { name => $name, val => $val };
$e{$_} and $obj->{$_} = $e{$_} foreach keys %e;
push @{$objs[0]{l}}, $obj;
}
}
$raw_X;
}
sub raw_to_string {
my ($e, $want_spacing) = @_;
my $s = do {
if ($e->{l}) {
my $inside = join('', map_index { raw_to_string($_, $::i) } @{$e->{l}});
$inside =~ s/^/ /mg;
qq(\n$e->{kind} "$e->{name}"\n) . $inside . "End$e->{kind}";
} else {
($e->{commented} ? '#' : '') .
($e->{Option} ? qq(Option "$e->{name}") : $e->{name}) .
(defined $e->{val} ? ($e->{Option} && $e->{val} !~ /^"/ ? qq( "$e->{val}") : qq( $e->{val})) : '');
}
};
($e->{pre_comment} ? ($want_spacing ? "\n" : '') . $e->{pre_comment} : '') . $s . ($e->{comment_on_line} || '') . "\n" . ($e->{post_comment} || '');
}
#-###############################################################################
#- refine the data structure for easier use
#-###############################################################################
my %kind_names = (
Pointer => [ qw(Protocol Device Emulate3Buttons Emulate3Timeout) ],
Mouse => [ qw(DeviceName Protocol Device AlwaysCore Emulate3Buttons Emulate3Timeout) ], # Subsection in XInput
Keyboard => [ qw(Protocol Driver XkbModel XkbLayout XkbDisable) ],
Monitor => [ qw(Identifier VendorName ModelName HorizSync VertRefresh) ],
Device => [ qw(Identifier VendorName BoardName Chipset Driver VideoRam Screen BusID DPMS power_saver) ],
Display => [ qw(Depth Modes) ], # Subsection in Device
Screen => [ qw(Identifier Driver Device Monitor DefaultColorDepth) ],
InputDevice => [ qw(Identifier Driver Protocol Device Type Mode XkbModel XkbLayout XkbDisable Emulate3Buttons Emulate3Timeout) ],
ServerLayout => [ qw(Identifier) ],
);
my @want_string = qw(Identifier DeviceName VendorName ModelName BoardName Driver Device Chipset Monitor Protocol XkbModel XkbLayout Load BusID);
%kind_names = map_each { lc $::a => [ map { lc } @$::b ] } %kind_names;
@want_string = map { lc } @want_string;
sub from_raw {
foreach my $e (@_) {
($e->{l}, my $l) = ({}, $e->{l});
from_raw__rec($e, $_) foreach @$l;
delete $e->{kind};
}
sub from_raw__rec {
my ($current, $e) = @_;
if ($e->{l}) {
from_raw($e);
push @{$current->{l}{$e->{name}}}, $e;
} else {
if (member(lc $e->{name}, @want_string)) {
$e->{val} =~ s/^"(.*)"$/$1/ or warn "$e->{name} $e->{val} has no quote\n";
}
if (member(lc $e->{name}, @{$kind_names{lc $current->{name}} || []})) {
if ($current->{l}{$e->{name}} && !$current->{l}{$e->{name}}{commented}) {
warn "skipping conflicting line for $e->{name} in $current->{name}\n" if !$e->{commented};
} else {
$current->{l}{$e->{name}} = $e;
}
} else {
push @{$current->{l}{$e->{name}}}, $e;
}
}
delete $e->{name};
}
}
sub before_to_string {
my ($e, $depth) = @_;
if ($e->{l}) {
$e->{kind} = $depth ? 'Subsection' : 'Section';
my %rated = map_index { $_ => $::i + 1 } @{$kind_names{lc $e->{name}} || []};
my @sorted = sort { ($rated{lc $a} || 99) <=> ($rated{lc $b} || 99) } keys %{$e->{l}};
$e->{l} = [ map {
my $name = $_;
map {
before_to_string({ name => $name, %$_ }, $depth+1);
} deref_array($e->{l}{$name});
} @sorted ];
} elsif (member(lc $e->{name}, @want_string)) {
$e->{val} = qq("$e->{val}");
}
$e;
}
|
