| 1 | #! perl |
1 | #! perl |
|
|
2 | |
|
|
3 | #:META:RESOURCE:%.pattern-0:string:first selection pattern |
|
|
4 | |
|
|
5 | =head1 NAME |
|
|
6 | |
|
|
7 | selection - more intelligent selection (enabled by default) |
|
|
8 | |
|
|
9 | =head1 DESCRIPTION |
|
|
10 | |
|
|
11 | This extension tries to be more intelligent when the user extends |
|
|
12 | selections (double-click and further clicks). Right now, it tries to |
|
|
13 | select words, urls and complete shell-quoted arguments, which is very |
|
|
14 | convenient, too, if your F<ls> supports C<--quoting-style=shell>. |
|
|
15 | |
|
|
16 | A double-click usually selects the word under the cursor, further clicks |
|
|
17 | will enlarge the selection. |
|
|
18 | |
|
|
19 | The selection works by trying to match a number of regexes and displaying |
|
|
20 | them in increasing order of length. You can add your own regexes by |
|
|
21 | specifying resources of the form: |
|
|
22 | |
|
|
23 | URxvt.selection.pattern-0: perl-regex |
|
|
24 | URxvt.selection.pattern-1: perl-regex |
|
|
25 | ... |
|
|
26 | |
|
|
27 | The index number (0, 1...) must not have any holes, and each regex must |
|
|
28 | contain at least one pair of capturing parentheses, which will be used for |
|
|
29 | the match. For example, the following adds a regex that matches everything |
|
|
30 | between two vertical bars: |
|
|
31 | |
|
|
32 | URxvt.selection.pattern-0: \\|([^|]+)\\| |
|
|
33 | |
|
|
34 | Another example: Programs I use often output "absolute path: " at the |
|
|
35 | beginning of a line when they process multiple files. The following |
|
|
36 | pattern matches the filename (note, there is a single space at the very |
|
|
37 | end): |
|
|
38 | |
|
|
39 | URxvt.selection.pattern-0: ^(/[^:]+):\ |
|
|
40 | |
|
|
41 | You can look at the source of the selection extension to see more |
|
|
42 | interesting uses, such as parsing a line from beginning to end. |
|
|
43 | |
|
|
44 | This extension also offers following bindable keyboard commands: |
|
|
45 | |
|
|
46 | =over 4 |
|
|
47 | |
|
|
48 | =item rot13 |
|
|
49 | |
|
|
50 | Rot-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 | |
| 3 | sub on_user_command { |
58 | sub 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/; $_ } $self->selection); |
| 8 | |
63 | |
| 9 | () |
64 | () |
|
|
65 | } |
|
|
66 | |
|
|
67 | sub on_keyboard_dispatch { |
|
|
68 | &on_user_command; |
| 10 | } |
69 | } |
| 11 | |
70 | |
| 12 | sub on_init { |
71 | sub on_init { |
| 13 | my ($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 | |
| … | |
… | |
| 91 | - $line->offset_of ($self->selection_beg); |
149 | - $line->offset_of ($self->selection_beg); |
| 92 | |
150 | |
| 93 | my @matches; |
151 | my @matches; |
| 94 | |
152 | |
| 95 | if ($markofs < $line->l) { |
153 | if ($markofs < $line->l) { |
| 96 | # convert markofs from character to UTF-8 offset space |
|
|
| 97 | { |
|
|
| 98 | my $prefix = substr $text, 0, $markofs; |
|
|
| 99 | utf8::encode $prefix; |
|
|
| 100 | $markofs = length $prefix; |
|
|
| 101 | } |
|
|
| 102 | |
|
|
| 103 | # not doing matches in unicode mode helps speed |
|
|
| 104 | # enourmously here. working in utf-8 should be |
|
|
| 105 | # equivalent due to the magic of utf-8 encoding. |
|
|
| 106 | utf8::encode $text; |
|
|
| 107 | study $text; # _really_ helps, too :) |
154 | study $text; # _really_ helps, too :) |
| 108 | |
155 | |
| 109 | for my $regex (@mark_patterns, @{ $self->{patterns} }) { |
156 | for my $regex (@mark_patterns, @{ $self->{patterns} }) { |
| 110 | while ($text =~ /$regex/g) { |
157 | while ($text =~ /$regex/g) { |
| 111 | if ($-[1] <= $markofs and $markofs <= $+[1]) { |
158 | if ($-[1] <= $markofs and $markofs <= $+[1]) { |
| … | |
… | |
| 131 | for (sort { $a->[1] <=> $b->[1] or $b->[0] <=> $a->[0] } @matches) { |
178 | for (sort { $a->[1] <=> $b->[1] or $b->[0] <=> $a->[0] } @matches) { |
| 132 | my ($ofs, $len) = @$_; |
179 | my ($ofs, $len) = @$_; |
| 133 | |
180 | |
| 134 | next if $len <= $curlen; |
181 | next if $len <= $curlen; |
| 135 | |
182 | |
| 136 | # convert back from UTF-8 offset space to character space |
|
|
| 137 | { |
|
|
| 138 | my $length = substr "$text ", $ofs, $len; |
|
|
| 139 | utf8::decode $length; |
|
|
| 140 | $len = length $length; |
|
|
| 141 | } |
|
|
| 142 | { |
|
|
| 143 | my $prefix = substr $text, 0, $ofs; |
|
|
| 144 | utf8::decode $prefix; |
|
|
| 145 | $ofs = length $prefix; |
|
|
| 146 | } |
|
|
| 147 | |
|
|
| 148 | $self->selection_beg ($line->coord_of ($ofs)); |
183 | $self->selection_beg ($line->coord_of ($ofs)); |
| 149 | $self->selection_end ($line->coord_of ($ofs + $len)); |
184 | $self->selection_end ($line->coord_of ($ofs + $len)); |
| 150 | return 1; |
185 | return 1; |
| 151 | } |
186 | } |
| 152 | |
187 | |
