1 | #! perl |
1 | #! perl |
2 | |
2 | |
3 | # this extension implements scrollback buffer search |
3 | # this extension implements scrollback buffer search |
4 | |
4 | |
5 | #:META:X_RESOURCE:%:string:activation hotkey keysym |
5 | #:META:RESOURCE:%:string:activation hotkey keysym |
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6 | #:META:BINDING:M-s:start |
6 | |
7 | |
7 | =head1 NAME |
8 | =head1 NAME |
8 | |
9 | |
9 | searchable-scrollback<hotkey> - incremental scrollback search (enabled by default) |
10 | searchable-scrollback - incremental scrollback search (enabled by default) |
10 | |
11 | |
11 | =head1 DESCRIPTION |
12 | =head1 DESCRIPTION |
12 | |
13 | |
13 | Adds regex search functionality to the scrollback buffer, triggered |
14 | Adds regex search functionality to the scrollback buffer, triggered by |
14 | by a hotkey (default: C<M-s>). While in search mode, normal terminal |
15 | the C<searchable-scrollback:start> action (bound to C<M-s> by |
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16 | default). While in search mode, normal terminal input/output is |
15 | input/output is suspended and a regex is displayed at the bottom of the |
17 | suspended and a regex is displayed at the bottom of the screen. |
16 | screen. |
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17 | |
18 | |
18 | Inputting characters appends them to the regex and continues incremental |
19 | Inputting characters appends them to the regex and continues incremental |
19 | search. C<BackSpace> removes a character from the regex, C<Up> and C<Down> |
20 | search. C<BackSpace> removes a character from the regex, C<Up> and C<Down> |
20 | search upwards/downwards in the scrollback buffer, C<End> jumps to the |
21 | search upwards/downwards in the scrollback buffer, C<End> jumps to the |
21 | bottom. C<Escape> leaves search mode and returns to the point where search |
22 | bottom. C<Escape> leaves search mode and returns to the point where search |
… | |
… | |
32 | =cut |
33 | =cut |
33 | |
34 | |
34 | sub on_init { |
35 | sub on_init { |
35 | my ($self) = @_; |
36 | my ($self) = @_; |
36 | |
37 | |
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38 | # only for backwards compatibility |
37 | my $hotkey = $self->{argv}[0] |
39 | my $hotkey = $self->{argv}[0] |
38 | || $self->x_resource ("%") |
40 | || $self->x_resource ("%") |
39 | || "M-s"; |
41 | || return; |
40 | |
42 | |
41 | $self->parse_keysym ($hotkey, "perl:searchable-scrollback:start") |
43 | $self->bind_action ($hotkey, "searchable-scrollback:start") # ugh |
42 | 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"; |
43 | |
45 | |
44 | () |
46 | () |
45 | } |
47 | } |
46 | |
48 | |
47 | sub on_user_command { |
49 | sub on_action { |
48 | my ($self, $cmd) = @_; |
50 | my ($self, $action) = @_; |
49 | |
51 | |
50 | $cmd eq "searchable-scrollback:start" |
52 | $action eq "start" |
51 | and $self->enter; |
53 | and $self->enter; |
52 | |
54 | |
53 | () |
55 | () |
54 | } |
56 | } |
55 | |
57 | |
… | |
… | |
89 | $self->disable ("key_press", "tt_write", "refresh_begin", "refresh_end"); |
91 | $self->disable ("key_press", "tt_write", "refresh_begin", "refresh_end"); |
90 | $self->pty_ev_events ($self->{pty_ev_events}); |
92 | $self->pty_ev_events ($self->{pty_ev_events}); |
91 | |
93 | |
92 | delete $self->{manpage_overlay}; |
94 | delete $self->{manpage_overlay}; |
93 | delete $self->{overlay}; |
95 | delete $self->{overlay}; |
94 | delete $self->{history}; |
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95 | delete $self->{search}; |
96 | delete $self->{search}; |
96 | } |
97 | } |
97 | |
98 | |
98 | sub idle { |
99 | sub idle { |
99 | my ($self) = @_; |
100 | my ($self) = @_; |
100 | |
101 | |
101 | $self->msg ("(escape cancels) /$self->{search}█"); |
102 | $self->msg ("(escape cancels) /$self->{search}█"); |
102 | } |
103 | } |
103 | |
104 | |
104 | sub search { |
105 | sub search { |
105 | my ($self, $dir) = @_; |
106 | my ($self, $dir, $row) = @_; |
106 | |
107 | |
107 | delete $self->{found}; |
108 | delete $self->{found}; |
108 | my $row = $self->{row}; |
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109 | |
109 | |
110 | my $search = $self->special_encode ($self->{search}); |
110 | my $search = $self->special_encode ($self->{search}); |
111 | |
111 | |
112 | no re 'eval'; # just to be sure |
112 | no re 'eval'; # just to be sure |
113 | if (my $re = eval { qr/$search/ }) { |
113 | if (my $re = eval { qr/$search/ }) { |
… | |
… | |
166 | $self->leave; |
166 | $self->leave; |
167 | } elsif ($keysym == 0xff57) { # end |
167 | } elsif ($keysym == 0xff57) { # end |
168 | $self->{row} = $self->nrow - 1; |
168 | $self->{row} = $self->nrow - 1; |
169 | $self->view_start (0); |
169 | $self->view_start (0); |
170 | } elsif ($keysym == 0xff52) { # up |
170 | } elsif ($keysym == 0xff52) { # up |
171 | $self->{row}-- if $self->{row} > $self->top_row; |
171 | my $line = $self->line ($self->{row}); |
172 | $self->search (-1); |
172 | $self->search (-1, $line->beg - 1) |
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173 | if $line->beg > $self->top_row; |
173 | } elsif ($keysym == 0xff54) { # down |
174 | } elsif ($keysym == 0xff54) { # down |
174 | $self->{row}++ if $self->{row} < $self->nrow; |
175 | my $line = $self->line ($self->{row}); |
175 | $self->search (+1); |
176 | $self->search (+1, $line->end + 1) |
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177 | if $line->end < $self->nrow; |
176 | } elsif ($keysym == 0xff08) { # backspace |
178 | } elsif ($keysym == 0xff08) { # backspace |
177 | substr $self->{search}, -1, 1, ""; |
179 | substr $self->{search}, -1, 1, ""; |
178 | $self->search; |
180 | $self->search (+1, $self->{row}); |
179 | $self->idle; |
181 | $self->idle; |
180 | } elsif ($string !~ /[\x00-\x1f\x80-\xaf]/) { |
182 | } elsif ($string !~ /[\x00-\x1f\x80-\xaf]/) { |
181 | return; # pass to tt_write |
183 | return; # pass to tt_write |
182 | } |
184 | } |
183 | |
185 | |
… | |
… | |
190 | $self->{search} .= $self->locale_decode ($data); |
192 | $self->{search} .= $self->locale_decode ($data); |
191 | |
193 | |
192 | $self->{search} =~ s/^\(\?i\)// |
194 | $self->{search} =~ s/^\(\?i\)// |
193 | if $self->{search} =~ /^\(.*[[:upper:]]/; |
195 | if $self->{search} =~ /^\(.*[[:upper:]]/; |
194 | |
196 | |
195 | $self->search (-1); |
197 | $self->search (-1, $self->{row}); |
196 | $self->idle; |
198 | $self->idle; |
197 | |
199 | |
198 | 1 |
200 | 1 |
199 | } |
201 | } |
200 | |
202 | |