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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 1.43 by root, Fri Dec 26 19:19:30 2014 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: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. 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
37 # only for backwards compatibility
8 my $hotkey = $self->{argv}[0] 38 my $hotkey = $self->{argv}[0]
9 || $self->x_resource ("searchable-scrollback") 39 || $self->x_resource ("%")
10 || "M-s"; 40 || "M-s";
11 41
12 $self->parse_keysym ($hotkey, "perl:searchable-scrollback:start") 42 $self->bind_action ($hotkey, "%:start")
13 or warn "unable to register '$hotkey' as scrollback search start hotkey\n"; 43 or warn "unable to register '$hotkey' as scrollback search start hotkey\n";
14 44
15 () 45 ()
16} 46}
17 47
18sub on_keyboard_command { 48sub on_user_command {
19 my ($self, $cmd) = @_; 49 my ($self, $cmd) = @_;
20 50
21 $cmd eq "searchable-scrollback:start" 51 $cmd eq "searchable-scrollback:start"
22 and $self->enter; 52 and $self->enter;
23 53
24 () 54 ()
25} 55}
26 56
57sub on_action {
58 my ($self, $action) = @_;
59
60 $action eq "start"
61 and $self->enter;
62
63 ()
64}
65
27sub msg { 66sub msg {
28 my ($self, $msg) = @_; 67 my ($self, $msg) = @_;
29 68
30 $self->{overlay} = $self->overlay (0, -1, $self->ncol, 1, urxvt::OVERLAY_RSTYLE, 0); 69 $self->{overlay} = $self->overlay (0, -1, $self->ncol, 1, urxvt::OVERLAY_RSTYLE, 0);
31 $self->{overlay}->set (0, 0, $self->special_encode ($msg)); 70 $self->{overlay}->set (0, 0, $self->special_encode ($msg));
… …
34sub enter { 73sub enter {
35 my ($self) = @_; 74 my ($self) = @_;
36 75
37 return if $self->{overlay}; 76 return if $self->{overlay};
38 77
39 $self->{history} = [];
40 $self->{view_start} = $self->view_start; 78 $self->{view_start} = $self->view_start;
41 $self->{pty_ev_events} = $self->pty_ev_events (urxvt::EVENT_NONE); 79 $self->{pty_ev_events} = $self->pty_ev_events (urxvt::EV_NONE);
80 $self->{row} = $self->nrow - 1;
81 $self->{search} = "(?i)";
42 82
43 $self->enable ( 83 $self->enable (
44 key_press => \&key_press, 84 key_press => \&key_press,
45 tt_write => \&tt_write, 85 tt_write => \&tt_write,
46 refresh_begin => \&refresh, 86 refresh_begin => \&refresh,
… …
59 $self->disable ("key_press", "tt_write", "refresh_begin", "refresh_end"); 99 $self->disable ("key_press", "tt_write", "refresh_begin", "refresh_end");
60 $self->pty_ev_events ($self->{pty_ev_events}); 100 $self->pty_ev_events ($self->{pty_ev_events});
61 101
62 delete $self->{manpage_overlay}; 102 delete $self->{manpage_overlay};
63 delete $self->{overlay}; 103 delete $self->{overlay};
104 delete $self->{search};
64 delete $self->{history}; 105 delete $self->{found};
65} 106}
66 107
67sub idle { 108sub idle {
68 my ($self) = @_; 109 my ($self) = @_;
69 110
70 $self->msg ("escape=exit, enter=accept, /=start search, n=next, p=previous, G=bottom"); 111 $self->msg ("(escape cancels) /$self->{search}█");
71
72 delete $self->{in_search};
73} 112}
74 113
75sub search { 114sub search {
76 my ($self, $offset) = @_; 115 my ($self, $dir, $row) = @_;
77
78 my $row = -$self->view_start + ($self->nrow >> 1) + $offset;
79
80 delete $self->{found};
81 116
82 my $search = $self->special_encode ($self->{search}); 117 my $search = $self->special_encode ($self->{search});
83 118
84 no re 'eval'; # just to be sure 119 no re 'eval'; # just to be sure
85 my $re = qr/$search/; 120 if (my $re = eval { qr/$search/ }) {
86 121 while ($self->nrow > $row && $row >= $self->top_row) {
87 while ($row > -$self->nsaved) {
88 my $line = $self->line ($row) 122 my $line = $self->line ($row)
89 or last; 123 or last;
90 124
91 my $text = $line->t; 125 my $text = $line->t;
92 if ($text =~ /$re/g) { 126 if ($text =~ /$re/g) {
127 delete $self->{found};
128
93 do { 129 do {
94 push @{ $self->{found} }, [$line->coord_of ($-[0]), $line->coord_of ($+[0])]; 130 push @{ $self->{found} }, [$line->coord_of ($-[0]), $line->coord_of ($+[0])];
95 } while $text =~ /$re/g; 131 } while $text =~ /$re/g;
96 132
133 $self->{row} = $row;
97 $self->view_start (-$row + ($self->nrow >> 1)); 134 $self->view_start (List::Util::min 0, $row - ($self->nrow >> 1));
135 $self->want_refresh;
136 return;
98 last; 137 }
138
139 $row = $dir < 0 ? $line->beg - 1 : $line->end + 1;
99 } 140 }
100
101 $row = $line->beg - 1;
102 } 141 }
103 142
104 $self->msg ("enter/type/backspace: /$self->{search}_" 143 $self->scr_bell;
105 . ($self->{found} ? "" : " (not found)"));
106 $self->scr_bell unless $self->{found};
107} 144}
108 145
109sub refresh { 146sub refresh {
110 my ($self) = @_; 147 my ($self) = @_;
111 148
112 return unless $self->{found}; 149 return unless $self->{found};
113 150
114 $self->scr_xor_span (@$_, urxvt::SET_FGCOLOR (urxvt::RS_RVid, 15)) 151 my $xor = urxvt::RS_RVid | urxvt::RS_Blink;
115 for @{ $self->{found} }; 152 for (@{ $self->{found} }) {
153 $self->scr_xor_span (@$_, $xor);
154 $xor = urxvt::RS_RVid;
155 }
116 156
117 () 157 ()
118} 158}
119 159
120sub key_press { 160sub key_press {
121 my ($self, $event, $keysym, $string) = @_; 161 my ($self, $event, $keysym, $string) = @_;
122 162
123 if (exists $self->{in_search}) { 163 delete $self->{manpage_overlay};
164
124 if ($keysym == 0xff0d || $keysym == 0xff8d) { 165 if ($keysym == 0xff0d || $keysym == 0xff8d) { # enter
125 $self->idle; 166 if ($self->{found} && $event->{state} & urxvt::ShiftMask) {
126 } elsif ($keysym == 0xff1b) { 167 my ($br, $bc, $er, $ec) = @{ $self->{found}[0] };
127 $self->view_start ($self->{in_search}); 168 $self->selection_beg ($br, $bc);
128 $self->idle; 169 $self->selection_end ($er, $ec);
129 } elsif ($keysym == 0xff08) { 170 $self->selection_make ($event->{time});
130 substr $self->{search}, -1, 1, "";
131 $self->search;
132 } elsif ($string ne "") {
133 return;
134 } 171 }
135
136 } else {
137 if ($keysym == 0xff0d || $keysym == 0xff8d) {
138 # TODO: set selection
139 $self->leave; 172 $self->leave;
140 } elsif ($keysym == 0xff1b) { 173 } elsif ($keysym == 0xff1b) { # escape
141 $self->view_start ($self->{view_start}); 174 $self->view_start ($self->{view_start});
142 $self->leave; 175 $self->leave;
143 } elsif ($keysym == 0xff52) { 176 } elsif ($keysym == 0xff57) { # end
144 $self->view_start ($self->view_start + 1); 177 $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); 178 $self->view_start (0);
154 } elsif ($string eq "n") { 179 } elsif ($keysym == 0xff52) { # up
155 if ($self->{found} && @{ $self->{found} }) { 180 my $line = $self->line ($self->{row});
156 push @{ $self->{history} }, [$self->view_start, $self->{found}]; 181 $self->search (-1, $line->beg - 1)
157 $self->search (-1); 182 if $line->beg > $self->top_row;
183 } elsif ($keysym == 0xff54) { # down
184 my $line = $self->line ($self->{row});
185 $self->search (+1, $line->end + 1)
186 if $line->end < $self->nrow;
187 } elsif ($keysym == 0xff08) { # backspace
188 substr $self->{search}, -1, 1, "";
189 $self->search (+1, $self->{row});
158 $self->idle; 190 $self->idle;
159 } 191 } elsif ($string !~ /[\x00-\x1f\x80-\xaf]/) {
160 } elsif ($string eq "p" or $string eq "N") { 192 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 $self->scr_bell;
168 }
169 } 193 }
170 194
171 1 195 1
172} 196}
173 197
174sub tt_write { 198sub tt_write {
175 my ($self, $data) = @_; 199 my ($self, $data) = @_;
176 200
177 $self->{search} .= $self->locale_decode ($data); 201 $self->{search} .= $self->locale_decode ($data);
202
203 $self->{search} =~ s/^\(\?i\)//
204 if $self->{search} =~ /^\(.*[[:upper:]]/;
205
206 delete $self->{found};
207 $self->search (-1, $self->{row});
178 $self->search; 208 $self->idle;
179 209
180 1 210 1
181} 211}
182 212
183 213

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