| 1 | #! perl |
1 | #! perl |
| 2 | |
2 | |
| 3 | # this extension implements scrollback buffer search |
3 | # this extension implements scrollback buffer search |
| 4 | |
4 | |
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5 | #:META:RESOURCE:%:string:activation hotkey keysym |
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6 | #:META:BINDING:M-s:start |
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7 | |
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8 | =head1 NAME |
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9 | |
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10 | searchable-scrollback<hotkey> - incremental scrollback search (enabled by default) |
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11 | |
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12 | =head1 DESCRIPTION |
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13 | |
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14 | Adds regex search functionality to the scrollback buffer, triggered |
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15 | by a hotkey (default: C<M-s>). While in search mode, normal terminal |
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16 | input/output is suspended and a regex is displayed at the bottom of the |
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17 | screen. |
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18 | |
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19 | Inputting characters appends them to the regex and continues incremental |
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20 | search. C<BackSpace> removes a character from the regex, C<Up> and C<Down> |
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21 | search upwards/downwards in the scrollback buffer, C<End> jumps to the |
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22 | bottom. C<Escape> leaves search mode and returns to the point where search |
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23 | was started, while C<Enter> or C<Return> stay at the current position and |
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24 | additionally stores the first match in the current line into the primary |
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25 | selection if the C<Shift> modifier is active. |
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26 | |
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27 | The regex defaults to "(?i)", resulting in a case-insensitive search. To |
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28 | get a case-sensitive search you can delete this prefix using C<BackSpace> |
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29 | or simply use an uppercase character which removes the "(?i)" prefix. |
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30 | |
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31 | See L<perlre> for more info about perl regular expression syntax. |
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32 | |
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33 | =cut |
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34 | |
| 5 | sub on_init { |
35 | sub on_init { |
| 6 | my ($self) = @_; |
36 | my ($self) = @_; |
| 7 | |
37 | |
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38 | # only for backwards compatibility |
| 8 | my $hotkey = $self->{argv}[0] |
39 | my $hotkey = $self->{argv}[0] |
| 9 | || $self->x_resource ("searchable-scrollback") |
40 | || $self->x_resource ("%") |
| 10 | || "M-s"; |
41 | || return; |
| 11 | |
42 | |
| 12 | $self->parse_keysym ($hotkey, "perl:searchable-scrollback:start") |
43 | $self->bind_action ($hotkey, "searchable-scrollback:start") # ugh |
| 13 | or warn "unable to register '$hotkey' as scrollback search start hotkey\n"; |
44 | or warn "unable to register '$hotkey' as scrollback search start hotkey\n"; |
| 14 | |
45 | |
| 15 | () |
46 | () |
| 16 | } |
47 | } |
| 17 | |
48 | |
| 18 | sub on_user_command { |
49 | sub on_action { |
| 19 | my ($self, $cmd) = @_; |
50 | my ($self, $action) = @_; |
| 20 | |
51 | |
| 21 | $cmd eq "searchable-scrollback:start" |
52 | $action eq "start" |
| 22 | and $self->enter; |
53 | and $self->enter; |
| 23 | |
54 | |
| 24 | () |
55 | () |
| 25 | } |
56 | } |
| 26 | |
57 | |
| … | |
… | |
| 35 | my ($self) = @_; |
66 | my ($self) = @_; |
| 36 | |
67 | |
| 37 | return if $self->{overlay}; |
68 | return if $self->{overlay}; |
| 38 | |
69 | |
| 39 | $self->{view_start} = $self->view_start; |
70 | $self->{view_start} = $self->view_start; |
| 40 | $self->{pty_ev_events} = $self->pty_ev_events (urxvt::EVENT_NONE); |
71 | $self->{pty_ev_events} = $self->pty_ev_events (urxvt::EV_NONE); |
| 41 | $self->{row} = $self->nrow - 1; |
72 | $self->{row} = $self->nrow - 1; |
| 42 | $self->{search} = "(?i)"; |
73 | $self->{search} = "(?i)"; |
| 43 | |
74 | |
| 44 | $self->enable ( |
75 | $self->enable ( |
| 45 | key_press => \&key_press, |
76 | key_press => \&key_press, |
| … | |
… | |
| 80 | |
111 | |
| 81 | my $search = $self->special_encode ($self->{search}); |
112 | my $search = $self->special_encode ($self->{search}); |
| 82 | |
113 | |
| 83 | no re 'eval'; # just to be sure |
114 | no re 'eval'; # just to be sure |
| 84 | if (my $re = eval { qr/$search/ }) { |
115 | if (my $re = eval { qr/$search/ }) { |
| 85 | while ($self->nrow > $row && $row > $self->top_row) { |
116 | while ($self->nrow > $row && $row >= $self->top_row) { |
| 86 | my $line = $self->line ($row) |
117 | my $line = $self->line ($row) |
| 87 | or last; |
118 | or last; |
| 88 | |
119 | |
| 89 | my $text = $line->t; |
120 | my $text = $line->t; |
| 90 | if ($text =~ /$re/g) { |
121 | if ($text =~ /$re/g) { |
| … | |
… | |
| 160 | |
191 | |
| 161 | $self->{search} .= $self->locale_decode ($data); |
192 | $self->{search} .= $self->locale_decode ($data); |
| 162 | |
193 | |
| 163 | $self->{search} =~ s/^\(\?i\)// |
194 | $self->{search} =~ s/^\(\?i\)// |
| 164 | if $self->{search} =~ /^\(.*[[:upper:]]/; |
195 | if $self->{search} =~ /^\(.*[[:upper:]]/; |
| 165 | |
196 | |
| 166 | $self->search (-1); |
197 | $self->search (-1); |
| 167 | $self->idle; |
198 | $self->idle; |
| 168 | |
199 | |
| 169 | 1 |
200 | 1 |
| 170 | } |
201 | } |
