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Comparing rxvt-unicode/src/perl/searchable-scrollback (file contents):
Revision 1.12 by root, Wed Jan 11 02:13:56 2006 UTC vs.
Revision 1.30 by root, Tue Sep 4 22:41:12 2012 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
6
7=head1 NAME
8
9searchable-scrollback<hotkey> - incremental scrollback search (enabled by default)
10
11=head1 DESCRIPTION
12
13Adds regex search functionality to the scrollback buffer, triggered
14by a hotkey (default: C<M-s>). While in search mode, normal terminal
15input/output is suspended and a regex is displayed at the bottom of the
16screen.
17
18Inputting characters appends them to the regex and continues incremental
19search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
20search upwards/downwards in the scrollback buffer, C<End> jumps to the
21bottom. C<Escape> leaves search mode and returns to the point where search
22was started, while C<Enter> or C<Return> stay at the current position and
23additionally stores the first match in the current line into the primary
24selection if the C<Shift> modifier is active.
25
26The regex defaults to "(?i)", resulting in a case-insensitive search. To
27get a case-sensitive search you can delete this prefix using C<BackSpace>
28or simply use an uppercase character which removes the "(?i)" prefix.
29
30See L<perlre> for more info about perl regular expression syntax.
31
32=cut
33
5sub on_init { 34sub 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
18sub on_keyboard_command { 47sub 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 $self->enter;
23 52
… …
34sub enter { 63sub enter {
35 my ($self) = @_; 64 my ($self) = @_;
36 65
37 return if $self->{overlay}; 66 return if $self->{overlay};
38 67
39 $self->{history} = [];
40 $self->{view_start} = $self->view_start; 68 $self->{view_start} = $self->view_start;
41 $self->{pty_ev_events} = $self->pty_ev_events (urxvt::EVENT_NONE); 69 $self->{pty_ev_events} = $self->pty_ev_events (urxvt::EV_NONE);
70 $self->{row} = $self->nrow - 1;
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,
… …
60 $self->pty_ev_events ($self->{pty_ev_events}); 90 $self->pty_ev_events ($self->{pty_ev_events});
61 91
62 delete $self->{manpage_overlay}; 92 delete $self->{manpage_overlay};
63 delete $self->{overlay}; 93 delete $self->{overlay};
64 delete $self->{history}; 94 delete $self->{history};
95 delete $self->{search};
65} 96}
66 97
67sub idle { 98sub idle {
68 my ($self) = @_; 99 my ($self) = @_;
69 100
70 $self->msg ("escape=exit, enter=accept, /=start search, n=next, p=previous, G=bottom"); 101 $self->msg ("(escape cancels) /$self->{search}█");
71
72 delete $self->{in_search};
73} 102}
74 103
75sub search { 104sub search {
76 my ($self, $offset) = @_; 105 my ($self, $dir) = @_;
77
78 my $row = -$self->view_start + ($self->nrow >> 1) + $offset;
79 106
80 delete $self->{found}; 107 delete $self->{found};
108 my $row = $self->{row};
81 109
82 my $search = $self->special_encode ($self->{search}); 110 my $search = $self->special_encode ($self->{search});
83 111
84 no re 'eval'; # just to be sure 112 no re 'eval'; # just to be sure
85 my $re = qr/$search/; 113 if (my $re = eval { qr/$search/ }) {
86 114 while ($self->nrow > $row && $row >= $self->top_row) {
87 while ($row > -$self->nsaved) {
88 my $line = $self->line ($row) 115 my $line = $self->line ($row)
89 or last; 116 or last;
90 117
91 my $text = $line->t; 118 my $text = $line->t;
92 if ($text =~ /$re/g) { 119 if ($text =~ /$re/g) {
93 do { 120 do {
94 push @{ $self->{found} }, [$line->coord_of ($-[0]), $line->coord_of ($+[0])]; 121 push @{ $self->{found} }, [$line->coord_of ($-[0]), $line->coord_of ($+[0])];
95 } while $text =~ /$re/g; 122 } while $text =~ /$re/g;
96 123
124 $self->{row} = $row;
97 $self->view_start (-$row + ($self->nrow >> 1)); 125 $self->view_start (List::Util::min 0, $row - ($self->nrow >> 1));
126 $self->want_refresh;
98 last; 127 last;
128 }
129
130 $row = $dir < 0 ? $line->beg - 1 : $line->end + 1;
99 } 131 }
100
101 $row = $line->beg - 1;
102 } 132 }
103 133
104 $self->msg ("enter/type/backspace: /$self->{search}_"
105 . ($self->{found} ? "" : " (not found)"));
106 $self->scr_bell unless $self->{found}; 134 $self->scr_bell unless $self->{found};
107} 135}
108 136
109sub refresh { 137sub refresh {
110 my ($self) = @_; 138 my ($self) = @_;
111 139
112 return unless $self->{found}; 140 return unless $self->{found};
113 141
114 $self->scr_xor_span (@$_, urxvt::SET_FGCOLOR (urxvt::RS_RVid, 15)) 142 my $xor = urxvt::RS_RVid | urxvt::RS_Blink;
115 for @{ $self->{found} }; 143 for (@{ $self->{found} }) {
144 $self->scr_xor_span (@$_, $xor);
145 $xor = urxvt::RS_RVid;
146 }
116 147
117 () 148 ()
118} 149}
119 150
120sub key_press { 151sub key_press {
121 my ($self, $event, $keysym, $string) = @_; 152 my ($self, $event, $keysym, $string) = @_;
122 153
123 if (exists $self->{in_search}) { 154 delete $self->{manpage_overlay};
155
124 if ($keysym == 0xff0d || $keysym == 0xff8d) { 156 if ($keysym == 0xff0d || $keysym == 0xff8d) { # enter
125 $self->idle; 157 if ($self->{found} && $event->{state} & urxvt::ShiftMask) {
126 } elsif ($keysym == 0xff1b) { 158 my ($br, $bc, $er, $ec) = @{ $self->{found}[0] };
127 $self->view_start ($self->{in_search}); 159 $self->selection_beg ($br, $bc);
128 $self->idle; 160 $self->selection_end ($er, $ec);
129 } elsif ($keysym == 0xff08) { 161 $self->selection_make ($event->{time});
130 substr $self->{search}, -1, 1, "";
131 $self->search;
132 } elsif ($string ne "") {
133 return;
134 } 162 }
135
136 } else {
137 if ($keysym == 0xff0d || $keysym == 0xff8d) {
138 # TODO: set selection
139 $self->leave; 163 $self->leave;
140 } elsif ($keysym == 0xff1b) { 164 } elsif ($keysym == 0xff1b) { # escape
141 $self->view_start ($self->{view_start}); 165 $self->view_start ($self->{view_start});
142 $self->leave; 166 $self->leave;
143 } elsif ($keysym == 0xff52) { 167 } elsif ($keysym == 0xff57) { # end
144 $self->view_start ($self->view_start + 1); 168 $self->{row} = $self->nrow - 1;
145 } elsif ($keysym == 0xff54) {
146 $self->view_start ($self->view_start - 1);
147 } elsif ($string eq "/") {
148 delete $self->{manpage_overlay};
149 $self->{in_search} = $self->view_start;
150 $self->search;
151 } elsif ($string eq "G") {
152 $self->{history} = [];
153 $self->view_start (0); 169 $self->view_start (0);
154 } elsif ($string eq "n") { 170 } elsif ($keysym == 0xff52) { # up
155 if ($self->{found} && @{ $self->{found} }) { 171 $self->{row}-- if $self->{row} > $self->top_row;
156 push @{ $self->{history} }, [$self->view_start, $self->{found}];
157 $self->search (-1); 172 $self->search (-1);
173 } elsif ($keysym == 0xff54) { # down
174 $self->{row}++ if $self->{row} < $self->nrow;
175 $self->search (+1);
176 } elsif ($keysym == 0xff08) { # backspace
177 substr $self->{search}, -1, 1, "";
178 $self->search;
158 $self->idle; 179 $self->idle;
159 } 180 } elsif ($string !~ /[\x00-\x1f\x80-\xaf]/) {
160 } elsif ($string eq "p" or $string eq "N") { 181 return; # pass to tt_write
161 if (my $prev = pop @{ $self->{history} }) {
162 $self->view_start ($prev->[0]);
163 $self->{found} = $prev->[1];
164 $self->want_refresh;
165 }
166 } elsif ($string ne "") {
167 $self->scr_bell;
168 }
169 } 182 }
170 183
171 1 184 1
172} 185}
173 186
174sub tt_write { 187sub tt_write {
175 my ($self, $data) = @_; 188 my ($self, $data) = @_;
176 189
177 $self->{search} .= $self->locale_decode ($data); 190 $self->{search} .= $self->locale_decode ($data);
191
192 $self->{search} =~ s/^\(\?i\)//
193 if $self->{search} =~ /^\(.*[[:upper:]]/;
194
178 $self->search; 195 $self->search (-1);
196 $self->idle;
179 197
180 1 198 1
181} 199}
182 200
183 201

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