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:X_RESOURCE:%:string:activation hotkey keysym |
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6 | |
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7 | =head1 NAME |
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8 | |
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9 | searchable-scrollback<hotkey> - incremental scrollback search (enabled by default) |
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10 | |
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11 | =head1 DESCRIPTION |
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12 | |
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13 | Adds regex search functionality to the scrollback buffer, triggered |
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14 | by a hotkey (default: C<M-s>). While in search mode, normal terminal |
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15 | input/output is suspended and a regex is displayed at the bottom of the |
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16 | screen. |
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17 | |
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18 | Inputting characters appends them to the regex and continues incremental |
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19 | search. C<BackSpace> removes a character from the regex, C<Up> and C<Down> |
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20 | search upwards/downwards in the scrollback buffer, C<End> jumps to the |
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21 | bottom. C<Escape> leaves search mode and returns to the point where search |
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22 | was started, while C<Enter> or C<Return> stay at the current position and |
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23 | additionally stores the first match in the current line into the primary |
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24 | selection if the C<Shift> modifier is active. |
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25 | |
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26 | The regex defaults to "(?i)", resulting in a case-insensitive search. To |
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27 | get a case-sensitive search you can delete this prefix using C<BackSpace> |
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28 | or simply use an uppercase character which removes the "(?i)" prefix. |
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29 | |
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30 | See L<perlre> for more info about perl regular expression syntax. |
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31 | |
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32 | =cut |
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33 | |
5 | sub on_init { |
34 | sub on_init { |
6 | my ($self) = @_; |
35 | my ($self) = @_; |
7 | |
36 | |
8 | my $hotkey = $self->{argv}[0] |
37 | my $hotkey = $self->{argv}[0] |
9 | || $self->x_resource ("searchable-scrollback") |
38 | || $self->x_resource ("%") |
10 | || "M-s"; |
39 | || "M-s"; |
11 | |
40 | |
12 | $self->parse_keysym ($hotkey, "perl:searchable-scrollback:start") |
41 | $self->parse_keysym ($hotkey, "perl:searchable-scrollback:start") |
13 | or warn "unable to register '$hotkey' as scrollback search start hotkey\n"; |
42 | or warn "unable to register '$hotkey' as scrollback search start hotkey\n"; |
14 | |
43 | |
15 | () |
44 | () |
16 | } |
45 | } |
17 | |
46 | |
18 | sub on_keyboard_command { |
47 | sub on_user_command { |
19 | my ($self, $cmd) = @_; |
48 | my ($self, $cmd) = @_; |
20 | |
49 | |
21 | $cmd eq "searchable-scrollback:start" |
50 | $cmd eq "searchable-scrollback:start" |
22 | and $self->enter; |
51 | and $self->enter; |
23 | |
52 | |
… | |
… | |
35 | my ($self) = @_; |
64 | my ($self) = @_; |
36 | |
65 | |
37 | return if $self->{overlay}; |
66 | return if $self->{overlay}; |
38 | |
67 | |
39 | $self->{view_start} = $self->view_start; |
68 | $self->{view_start} = $self->view_start; |
40 | $self->{pty_ev_events} = $self->pty_ev_events (urxvt::EVENT_NONE); |
69 | $self->{pty_ev_events} = $self->pty_ev_events (urxvt::EV_NONE); |
41 | $self->{row} = $self->nrow - 1; |
70 | $self->{row} = $self->nrow - 1; |
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71 | $self->{search} = "(?i)"; |
42 | |
72 | |
43 | $self->enable ( |
73 | $self->enable ( |
44 | key_press => \&key_press, |
74 | key_press => \&key_press, |
45 | tt_write => \&tt_write, |
75 | tt_write => \&tt_write, |
46 | refresh_begin => \&refresh, |
76 | refresh_begin => \&refresh, |
… | |
… | |
78 | my $row = $self->{row}; |
108 | my $row = $self->{row}; |
79 | |
109 | |
80 | my $search = $self->special_encode ($self->{search}); |
110 | my $search = $self->special_encode ($self->{search}); |
81 | |
111 | |
82 | no re 'eval'; # just to be sure |
112 | no re 'eval'; # just to be sure |
83 | my $re = qr/$search/; |
113 | if (my $re = eval { qr/$search/ }) { |
84 | |
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85 | while ($self->nrow > $row && $row > -$self->nsaved) { |
114 | while ($self->nrow > $row && $row >= $self->top_row) { |
86 | my $line = $self->line ($row) |
115 | my $line = $self->line ($row) |
87 | or last; |
116 | or last; |
88 | |
117 | |
89 | my $text = $line->t; |
118 | my $text = $line->t; |
90 | if ($text =~ /$re/g) { |
119 | if ($text =~ /$re/g) { |
91 | do { |
120 | do { |
92 | push @{ $self->{found} }, [$line->coord_of ($-[0]), $line->coord_of ($+[0])]; |
121 | push @{ $self->{found} }, [$line->coord_of ($-[0]), $line->coord_of ($+[0])]; |
93 | } while $text =~ /$re/g; |
122 | } while $text =~ /$re/g; |
94 | |
123 | |
95 | $self->{row} = $row; |
124 | $self->{row} = $row; |
96 | $self->view_start (-$row + ($self->nrow >> 1)); |
125 | $self->view_start (List::Util::min 0, $row - ($self->nrow >> 1)); |
97 | $self->want_refresh; |
126 | $self->want_refresh; |
98 | last; |
127 | last; |
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128 | } |
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129 | |
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130 | $row = $dir < 0 ? $line->beg - 1 : $line->end + 1; |
99 | } |
131 | } |
100 | |
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101 | $row = $dir < 0 ? $line->beg - 1 : $line->end + 1; |
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102 | } |
132 | } |
103 | |
133 | |
104 | $self->scr_bell unless $self->{found}; |
134 | $self->scr_bell unless $self->{found}; |
105 | } |
135 | } |
106 | |
136 | |
107 | sub refresh { |
137 | sub refresh { |
108 | my ($self) = @_; |
138 | my ($self) = @_; |
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139 | |
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140 | return unless $self->{found}; |
109 | |
141 | |
110 | my $xor = urxvt::RS_RVid | urxvt::RS_Blink; |
142 | my $xor = urxvt::RS_RVid | urxvt::RS_Blink; |
111 | for (@{ $self->{found} }) { |
143 | for (@{ $self->{found} }) { |
112 | $self->scr_xor_span (@$_, $xor); |
144 | $self->scr_xor_span (@$_, $xor); |
113 | $xor = urxvt::RS_RVid; |
145 | $xor = urxvt::RS_RVid; |
… | |
… | |
120 | my ($self, $event, $keysym, $string) = @_; |
152 | my ($self, $event, $keysym, $string) = @_; |
121 | |
153 | |
122 | delete $self->{manpage_overlay}; |
154 | delete $self->{manpage_overlay}; |
123 | |
155 | |
124 | if ($keysym == 0xff0d || $keysym == 0xff8d) { # enter |
156 | if ($keysym == 0xff0d || $keysym == 0xff8d) { # enter |
125 | if ($self->{found}) { |
157 | if ($self->{found} && $event->{state} & urxvt::ShiftMask) { |
126 | my ($br, $bc, $er, $ec) = @{ $self->{found}[0] }; |
158 | my ($br, $bc, $er, $ec) = @{ $self->{found}[0] }; |
127 | $self->selection_beg ($br, $bc); |
159 | $self->selection_beg ($br, $bc); |
128 | $self->selection_end ($er, $ec); |
160 | $self->selection_end ($er, $ec); |
129 | $self->selection_make ($event->{time}); |
161 | $self->selection_make ($event->{time}); |
130 | } |
162 | } |
… | |
… | |
134 | $self->leave; |
166 | $self->leave; |
135 | } elsif ($keysym == 0xff57) { # end |
167 | } elsif ($keysym == 0xff57) { # end |
136 | $self->{row} = $self->nrow - 1; |
168 | $self->{row} = $self->nrow - 1; |
137 | $self->view_start (0); |
169 | $self->view_start (0); |
138 | } elsif ($keysym == 0xff52) { # up |
170 | } elsif ($keysym == 0xff52) { # up |
139 | $self->{row}-- if $self->{row} > -$self->nsaved; |
171 | $self->{row}-- if $self->{row} > $self->top_row; |
140 | $self->search (-1); |
172 | $self->search (-1); |
141 | } elsif ($keysym == 0xff54) { # down |
173 | } elsif ($keysym == 0xff54) { # down |
142 | $self->{row}++ if $self->{row} < $self->nrow; |
174 | $self->{row}++ if $self->{row} < $self->nrow; |
143 | $self->search (+1); |
175 | $self->search (+1); |
144 | } elsif ($keysym == 0xff08) { # backspace |
176 | } elsif ($keysym == 0xff08) { # backspace |
145 | substr $self->{search}, -1, 1, ""; |
177 | substr $self->{search}, -1, 1, ""; |
146 | $self->search; |
178 | $self->search; |
147 | $self->idle; |
179 | $self->idle; |
148 | } elsif ($string =~ /^[^\x00-\x1f\x80-\xaf]+$/) { |
180 | } elsif ($string !~ /[\x00-\x1f\x80-\xaf]/) { |
149 | return; # pass to tt_write |
181 | return; # pass to tt_write |
150 | } |
182 | } |
151 | |
183 | |
152 | 1 |
184 | 1 |
153 | } |
185 | } |
154 | |
186 | |
155 | sub tt_write { |
187 | sub tt_write { |
156 | my ($self, $data) = @_; |
188 | my ($self, $data) = @_; |
157 | |
189 | |
158 | $self->{search} .= $self->locale_decode ($data); |
190 | $self->{search} .= $self->locale_decode ($data); |
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191 | |
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192 | $self->{search} =~ s/^\(\?i\)// |
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193 | if $self->{search} =~ /^\(.*[[:upper:]]/; |
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194 | |
159 | $self->search (-1); |
195 | $self->search (-1); |
160 | $self->idle; |
196 | $self->idle; |
161 | |
197 | |
162 | 1 |
198 | 1 |
163 | } |
199 | } |