ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/rxvt-unicode/src/perl/searchable-scrollback
(Generate patch)

Comparing rxvt-unicode/src/perl/searchable-scrollback (file contents):
Revision 1.28 by root, Sun Jun 10 13:58:06 2012 UTC vs.
Revision 1.44 by sf-exg, Tue Oct 24 20:12:08 2017 UTC

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
6
7=head1 NAME
8
9searchable-scrollback - incremental scrollback search (enabled by default)
10
11=head1 DESCRIPTION
12
13Adds regex search functionality to the scrollback buffer, triggered by
14the C<searchable-scrollback:start> action (bound to C<M-s> by
15default). While in search mode, normal terminal input/output is
16suspended and a regex is displayed at the bottom of the screen.
17
18Inputting characters appends them to the regex and continues incremental
19search. In addition, the following bindings are recognized:
20
21=over 4
22
23=item C<BackSpace>
24
25Remove a character from the regex.
26
27=item C<Insert>
28
29Append the value of the PRIMARY selection to the regex.
30
31=item C<Up>
32
33Search for a match upwards.
34
35=item C<Down>
36
37Search for a match downwards.
38
39=item C<Prior>
40
41Scroll up.
42
43=item C<Next>
44
45Scroll down.
46
47=item C<End>
48
49Scroll to the bottom.
50
51=item C<Escape>
52
53Leave the mode and return to the point where search was started.
54
55=item C<Enter> or C<Return>
56
57Leave the mode maintaining the current position in the scrollback.
58Additionally, if the C<Shift> modifier is active, store the first
59match in the current line into the primary selection.
60
61=back
62
63The regex defaults to "(?i)", resulting in a case-insensitive search. To
64get a case-sensitive search you can delete this prefix using C<BackSpace>
65or simply use an uppercase character which removes the "(?i)" prefix.
66
67See L<perlre> for more info about perl regular expression syntax.
68
69=cut
6 70
7sub on_init { 71sub on_init {
8 my ($self) = @_; 72 my ($self) = @_;
9 73
74 # only for backwards compatibility
10 my $hotkey = $self->{argv}[0] 75 my $hotkey = $self->{argv}[0]
11 || $self->x_resource ("%") 76 || $self->x_resource ("%")
12 || "M-s"; 77 || "M-s";
13 78
14 $self->parse_keysym ($hotkey, "perl:searchable-scrollback:start") 79 $self->bind_action ($hotkey, "%:start")
15 or warn "unable to register '$hotkey' as scrollback search start hotkey\n"; 80 or warn "unable to register '$hotkey' as scrollback search start hotkey\n";
16 81
17 () 82 ()
18} 83}
19 84
20sub on_user_command { 85sub on_user_command {
21 my ($self, $cmd) = @_; 86 my ($self, $cmd) = @_;
22 87
23 $cmd eq "searchable-scrollback:start" 88 $cmd eq "searchable-scrollback:start"
89 and $self->enter;
90
91 ()
92}
93
94sub on_action {
95 my ($self, $action) = @_;
96
97 $action eq "start"
24 and $self->enter; 98 and $self->enter;
25 99
26 () 100 ()
27} 101}
28 102
… …
62 $self->disable ("key_press", "tt_write", "refresh_begin", "refresh_end"); 136 $self->disable ("key_press", "tt_write", "refresh_begin", "refresh_end");
63 $self->pty_ev_events ($self->{pty_ev_events}); 137 $self->pty_ev_events ($self->{pty_ev_events});
64 138
65 delete $self->{manpage_overlay}; 139 delete $self->{manpage_overlay};
66 delete $self->{overlay}; 140 delete $self->{overlay};
67 delete $self->{history};
68 delete $self->{search}; 141 delete $self->{search};
142 delete $self->{found};
69} 143}
70 144
71sub idle { 145sub idle {
72 my ($self) = @_; 146 my ($self) = @_;
73 147
74 $self->msg ("(escape cancels) /$self->{search}█"); 148 $self->msg ("(escape cancels) /$self->{search}█");
75} 149}
76 150
77sub search { 151sub search {
78 my ($self, $dir) = @_; 152 my ($self, $dir, $row) = @_;
79
80 delete $self->{found};
81 my $row = $self->{row};
82 153
83 my $search = $self->special_encode ($self->{search}); 154 my $search = $self->special_encode ($self->{search});
84 155
85 no re 'eval'; # just to be sure 156 no re 'eval'; # just to be sure
86 if (my $re = eval { qr/$search/ }) { 157 if (my $re = eval { qr/$search/ }) {
… …
88 my $line = $self->line ($row) 159 my $line = $self->line ($row)
89 or last; 160 or last;
90 161
91 my $text = $line->t; 162 my $text = $line->t;
92 if ($text =~ /$re/g) { 163 if ($text =~ /$re/g) {
164 delete $self->{found};
165
93 do { 166 do {
94 push @{ $self->{found} }, [$line->coord_of ($-[0]), $line->coord_of ($+[0])]; 167 push @{ $self->{found} }, [$line->coord_of ($-[0]), $line->coord_of ($+[0])];
95 } while $text =~ /$re/g; 168 } while $text =~ /$re/g;
96 169
97 $self->{row} = $row; 170 $self->{row} = $row;
98 $self->view_start (List::Util::min 0, $row - ($self->nrow >> 1)); 171 $self->view_start (List::Util::min 0, $row - ($self->nrow >> 1));
99 $self->want_refresh; 172 $self->want_refresh;
100 last; 173 return;
101 } 174 }
102 175
103 $row = $dir < 0 ? $line->beg - 1 : $line->end + 1; 176 $row = $dir < 0 ? $line->beg - 1 : $line->end + 1;
104 } 177 }
105 } 178 }
106 179
107 $self->scr_bell unless $self->{found}; 180 $self->scr_bell;
108} 181}
109 182
110sub refresh { 183sub refresh {
111 my ($self) = @_; 184 my ($self) = @_;
112 185
… …
139 $self->leave; 212 $self->leave;
140 } elsif ($keysym == 0xff57) { # end 213 } elsif ($keysym == 0xff57) { # end
141 $self->{row} = $self->nrow - 1; 214 $self->{row} = $self->nrow - 1;
142 $self->view_start (0); 215 $self->view_start (0);
143 } elsif ($keysym == 0xff52) { # up 216 } elsif ($keysym == 0xff52) { # up
144 $self->{row}-- if $self->{row} > $self->top_row; 217 my $line = $self->line ($self->{row});
145 $self->search (-1); 218 $self->search (-1, $line->beg - 1)
219 if $line->beg > $self->top_row;
146 } elsif ($keysym == 0xff54) { # down 220 } elsif ($keysym == 0xff54) { # down
147 $self->{row}++ if $self->{row} < $self->nrow; 221 my $line = $self->line ($self->{row});
148 $self->search (+1); 222 $self->search (+1, $line->end + 1)
223 if $line->end < $self->nrow;
224 } elsif ($keysym == 0xff55) { # prior
225 my $row = $self->view_start - ($self->nrow - 1);
226 $self->view_start (List::Util::min 0, $row);
227 } elsif ($keysym == 0xff56) { # next
228 my $row = $self->view_start + ($self->nrow - 1);
229 $self->view_start (List::Util::min 0, $row);
230 } elsif ($keysym == 0xff63) { # insert
231 $self->selection_request (urxvt::CurrentTime, 1);
149 } elsif ($keysym == 0xff08) { # backspace 232 } elsif ($keysym == 0xff08) { # backspace
150 substr $self->{search}, -1, 1, ""; 233 substr $self->{search}, -1, 1, "";
151 $self->search; 234 $self->search (+1, $self->{row});
152 $self->idle; 235 $self->idle;
153 } elsif ($string !~ /[\x00-\x1f\x80-\xaf]/) { 236 } elsif ($string !~ /[\x00-\x1f\x80-\xaf]/) {
154 return; # pass to tt_write 237 return; # pass to tt_write
155 } 238 }
156 239
… …
163 $self->{search} .= $self->locale_decode ($data); 246 $self->{search} .= $self->locale_decode ($data);
164 247
165 $self->{search} =~ s/^\(\?i\)// 248 $self->{search} =~ s/^\(\?i\)//
166 if $self->{search} =~ /^\(.*[[:upper:]]/; 249 if $self->{search} =~ /^\(.*[[:upper:]]/;
167 250
251 delete $self->{found};
168 $self->search (-1); 252 $self->search (-1, $self->{row});
169 $self->idle; 253 $self->idle;
170 254
171 1 255 1
172} 256}
173 257

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines