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Comparing rxvt-unicode/src/perl/selection (file contents):
Revision 1.50 by root, Sat Jan 12 22:13:47 2008 UTC vs.
Revision 1.60 by sf-exg, Sat May 31 08:33:47 2014 UTC

1#! perl 1#! perl
2 2
3sub on_user_command { 3#:META:RESOURCE:%.pattern-0:string:first selection pattern
4 my ($self, $cmd) = @_;
5 4
6 $cmd eq "selection:rot13" 5=head1 NAME
6
7selection - more intelligent selection (enabled by default)
8
9=head1 DESCRIPTION
10
11This extension tries to be more intelligent when the user extends
12selections (double-click and further clicks). Right now, it tries to
13select words, urls and complete shell-quoted arguments, which is very
14convenient, too, if your F<ls> supports C<--quoting-style=shell>.
15
16A double-click usually selects the word under the cursor, further clicks
17will enlarge the selection.
18
19The selection works by trying to match a number of regexes and displaying
20them in increasing order of length. You can add your own regexes by
21specifying resources of the form:
22
23 URxvt.selection.pattern-0: perl-regex
24 URxvt.selection.pattern-1: perl-regex
25 ...
26
27The index number (0, 1...) must not have any holes, and each regex must
28contain at least one pair of capturing parentheses, which will be used for
29the match. For example, the following adds a regex that matches everything
30between two vertical bars:
31
32 URxvt.selection.pattern-0: \\|([^|]+)\\|
33
34Another example: Programs I use often output "absolute path: " at the
35beginning of a line when they process multiple files. The following
36pattern matches the filename (note, there is a single space at the very
37end):
38
39 URxvt.selection.pattern-0: ^(/[^:]+):\
40
41You can look at the source of the selection extension to see more
42interesting uses, such as parsing a line from beginning to end.
43
44This extension also offers the following actions:
45
46=over 4
47
48=item rot13
49
50Rot-13 the selection when activated.
51
52Example:
53
54 URxvt.keysym.C-M-r: selection:rot13
55
56=back
57
58=cut
59
60sub on_action {
61 my ($self, $action) = @_;
62
63 $action eq "rot13"
7 and $self->selection (map { y/A-Za-z/N-ZA-Mn-za-m/; $_ } $self->selection); 64 and $self->selection (map { y/A-Za-z/N-ZA-Mn-za-m/; $_ } $self->selection);
8 65
9 () 66 ()
10} 67}
11 68
… …
17 push @{ $self->{patterns} }, qr{\G [\Q$res\E[:space:]]* ([^\Q$res\E[:space:]]+) }x; 74 push @{ $self->{patterns} }, qr{\G [\Q$res\E[:space:]]* ([^\Q$res\E[:space:]]+) }x;
18 } 75 }
19 76
20 for (my $idx = 0; defined (my $res = $self->x_resource ("selection.pattern-$idx")); $idx++) { 77 for (my $idx = 0; defined (my $res = $self->x_resource ("selection.pattern-$idx")); $idx++) {
21 $res = $self->locale_decode ($res); 78 $res = $self->locale_decode ($res);
22 utf8::encode $res;
23 push @{ $self->{patterns} }, qr/$res/; 79 push @{ $self->{patterns} }, qr/$res/;
24 } 80 }
25 81
26 $self->{enabled} = 1; 82 $self->{enabled} = 1;
27 83
… …
42 qr{ (?<![^[:space:]]) ‘ ([^‘’]+) ’ (?![^[:space:]]) }x, 98 qr{ (?<![^[:space:]]) ‘ ([^‘’]+) ’ (?![^[:space:]]) }x,
43 qr{ (?<![^[:space:]]) “ ([^“”]+) ” (?![^[:space:]]) }x, 99 qr{ (?<![^[:space:]]) “ ([^“”]+) ” (?![^[:space:]]) }x,
44 100
45 qr{ (?<![^[:space:]]) (' [^[:space:]] [^']* ') }x, 101 qr{ (?<![^[:space:]]) (' [^[:space:]] [^']* ') }x,
46 qr{ (' [^']* [^[:space:]] ') (?![^[:space:]]) }x, 102 qr{ (' [^']* [^[:space:]] ') (?![^[:space:]]) }x,
103 qr{ (?<![^[:space:]]) (` [^[:space:]] [^']* ') }x,
104 qr{ (` [^']* [^[:space:]] ') (?![^[:space:]]) }x,
47 qr{ (?<![^[:space:]]) (" [^[:space:]] [^"]* ") }x, 105 qr{ (?<![^[:space:]]) (" [^[:space:]] [^"]* ") }x,
48 qr{ (" [^"]* [^[:space:]] ") (?![^[:space:]]) }x, 106 qr{ (" [^"]* [^[:space:]] ") (?![^[:space:]]) }x,
49 107
50 qr{ \{ ([^\{\}]+) \} }x, 108 qr{ \{ ([^\{\}]+) \} }x,
51 qr{ \( ([^\(\)]+) \) }x, 109 qr{ \( ([^\(\)]+) \) }x,
… …
89 - $line->offset_of ($self->selection_beg); 147 - $line->offset_of ($self->selection_beg);
90 148
91 my @matches; 149 my @matches;
92 150
93 if ($markofs < $line->l) { 151 if ($markofs < $line->l) {
94 # convert markofs from character to UTF-8 offset space
95 {
96 my $prefix = substr $text, 0, $markofs;
97 utf8::encode $prefix;
98 $markofs = length $prefix;
99 }
100
101 # not doing matches in unicode mode helps speed
102 # enourmously here. working in utf-8 should be
103 # equivalent due to the magic of utf-8 encoding.
104 utf8::encode $text;
105 study $text; # _really_ helps, too :) 152 study $text; # _really_ helps, too :)
106 153
107 for my $regex (@mark_patterns, @{ $self->{patterns} }) { 154 for my $regex (@mark_patterns, @{ $self->{patterns} }) {
108 while ($text =~ /$regex/g) { 155 while ($text =~ /$regex/g) {
109 if ($-[1] <= $markofs and $markofs <= $+[1]) { 156 if ($-[1] <= $markofs and $markofs <= $+[1]) {
… …
129 for (sort { $a->[1] <=> $b->[1] or $b->[0] <=> $a->[0] } @matches) { 176 for (sort { $a->[1] <=> $b->[1] or $b->[0] <=> $a->[0] } @matches) {
130 my ($ofs, $len) = @$_; 177 my ($ofs, $len) = @$_;
131 178
132 next if $len <= $curlen; 179 next if $len <= $curlen;
133 180
134 # convert back from UTF-8 offset space to character space
135 {
136 my $length = substr "$text ", $ofs, $len;
137 utf8::decode $length;
138 $len = length $length;
139 }
140 {
141 my $prefix = substr $text, 0, $ofs;
142 utf8::decode $prefix;
143 $ofs = length $prefix;
144 }
145
146 $self->selection_beg ($line->coord_of ($ofs)); 181 $self->selection_beg ($line->coord_of ($ofs));
147 $self->selection_end ($line->coord_of ($ofs + $len)); 182 $self->selection_end ($line->coord_of ($ofs + $len));
148 return 1; 183 return 1;
149 } 184 }
150 185

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