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Comparing rxvt-unicode/src/perl/selection (file contents):
Revision 1.51 by root, Sat Dec 26 09:42:16 2009 UTC vs.
Revision 1.58 by root, Sat May 17 13:38:23 2014 UTC

1#! perl 1#! perl
2
3#:META:RESOURCE:%.pattern-0:string:first selection pattern
4
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 following bindable keyboard commands:
45
46=over 4
47
48=item rot13
49
50Rot-13 the selection when activated. Used via keyboard trigger:
51
52 URxvt.keysym.C-M-r: perl:selection:rot13
53
54=back
55
56=cut
2 57
3sub on_user_command { 58sub on_user_command {
4 my ($self, $cmd) = @_; 59 my ($self, $cmd) = @_;
5 60
6 $cmd eq "selection:rot13" 61 $cmd eq "selection:rot13"
7 and $self->selection (map { y/A-Za-z/N-ZA-Mn-za-m/; $_ } $self->selection); 62 and $self->selection (map { y/A-Za-z/N-ZA-Mn-za-m/; $_ } $self->selection);
8 63
9 () 64 ()
65}
66
67sub on_keyboard_dispatch {
68 &on_user_command;
10} 69}
11 70
12sub on_init { 71sub on_init {
13 my ($self) = @_; 72 my ($self) = @_;
14 73
… …
17 push @{ $self->{patterns} }, qr{\G [\Q$res\E[:space:]]* ([^\Q$res\E[:space:]]+) }x; 76 push @{ $self->{patterns} }, qr{\G [\Q$res\E[:space:]]* ([^\Q$res\E[:space:]]+) }x;
18 } 77 }
19 78
20 for (my $idx = 0; defined (my $res = $self->x_resource ("selection.pattern-$idx")); $idx++) { 79 for (my $idx = 0; defined (my $res = $self->x_resource ("selection.pattern-$idx")); $idx++) {
21 $res = $self->locale_decode ($res); 80 $res = $self->locale_decode ($res);
22 utf8::encode $res;
23 push @{ $self->{patterns} }, qr/$res/; 81 push @{ $self->{patterns} }, qr/$res/;
24 } 82 }
25 83
26 $self->{enabled} = 1; 84 $self->{enabled} = 1;
27 85
… …
39 97
40 # common types of "parentheses" 98 # common types of "parentheses"
41 qr{ (?<![^[:space:]]) [`'] ([^`']+) [`'] (?![^[:space:]]) }x, 99 qr{ (?<![^[:space:]]) [`'] ([^`']+) [`'] (?![^[:space:]]) }x,
42 qr{ (?<![^[:space:]]) ‘ ([^‘’]+) ’ (?![^[:space:]]) }x, 100 qr{ (?<![^[:space:]]) ‘ ([^‘’]+) ’ (?![^[:space:]]) }x,
43 qr{ (?<![^[:space:]]) “ ([^“”]+) ” (?![^[:space:]]) }x, 101 qr{ (?<![^[:space:]]) “ ([^“”]+) ” (?![^[:space:]]) }x,
44 qr{ (?<![^[:space:]]) “ ([^“”]+) ” (?![^[:space:]]) }x,
45 102
46 qr{ (?<![^[:space:]]) (' [^[:space:]] [^']* ') }x, 103 qr{ (?<![^[:space:]]) (' [^[:space:]] [^']* ') }x,
47 qr{ (' [^']* [^[:space:]] ') (?![^[:space:]]) }x, 104 qr{ (' [^']* [^[:space:]] ') (?![^[:space:]]) }x,
105 qr{ (?<![^[:space:]]) (` [^[:space:]] [^']* ') }x,
106 qr{ (` [^']* [^[:space:]] ') (?![^[:space:]]) }x,
48 qr{ (?<![^[:space:]]) (" [^[:space:]] [^"]* ") }x, 107 qr{ (?<![^[:space:]]) (" [^[:space:]] [^"]* ") }x,
49 qr{ (" [^"]* [^[:space:]] ") (?![^[:space:]]) }x, 108 qr{ (" [^"]* [^[:space:]] ") (?![^[:space:]]) }x,
50 109
51 qr{ \{ ([^\{\}]+) \} }x, 110 qr{ \{ ([^\{\}]+) \} }x,
52 qr{ \( ([^\(\)]+) \) }x, 111 qr{ \( ([^\(\)]+) \) }x,
… …
90 - $line->offset_of ($self->selection_beg); 149 - $line->offset_of ($self->selection_beg);
91 150
92 my @matches; 151 my @matches;
93 152
94 if ($markofs < $line->l) { 153 if ($markofs < $line->l) {
95 # convert markofs from character to UTF-8 offset space
96 {
97 my $prefix = substr $text, 0, $markofs;
98 utf8::encode $prefix;
99 $markofs = length $prefix;
100 }
101
102 # not doing matches in unicode mode helps speed
103 # enourmously here. working in utf-8 should be
104 # equivalent due to the magic of utf-8 encoding.
105 utf8::encode $text;
106 study $text; # _really_ helps, too :) 154 study $text; # _really_ helps, too :)
107 155
108 for my $regex (@mark_patterns, @{ $self->{patterns} }) { 156 for my $regex (@mark_patterns, @{ $self->{patterns} }) {
109 while ($text =~ /$regex/g) { 157 while ($text =~ /$regex/g) {
110 if ($-[1] <= $markofs and $markofs <= $+[1]) { 158 if ($-[1] <= $markofs and $markofs <= $+[1]) {
… …
130 for (sort { $a->[1] <=> $b->[1] or $b->[0] <=> $a->[0] } @matches) { 178 for (sort { $a->[1] <=> $b->[1] or $b->[0] <=> $a->[0] } @matches) {
131 my ($ofs, $len) = @$_; 179 my ($ofs, $len) = @$_;
132 180
133 next if $len <= $curlen; 181 next if $len <= $curlen;
134 182
135 # convert back from UTF-8 offset space to character space
136 {
137 my $length = substr "$text ", $ofs, $len;
138 utf8::decode $length;
139 $len = length $length;
140 }
141 {
142 my $prefix = substr $text, 0, $ofs;
143 utf8::decode $prefix;
144 $ofs = length $prefix;
145 }
146
147 $self->selection_beg ($line->coord_of ($ofs)); 183 $self->selection_beg ($line->coord_of ($ofs));
148 $self->selection_end ($line->coord_of ($ofs + $len)); 184 $self->selection_end ($line->coord_of ($ofs + $len));
149 return 1; 185 return 1;
150 } 186 }
151 187

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