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/cvs/rxvt-unicode/src/perl/searchable-scrollback
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Comparing rxvt-unicode/src/perl/searchable-scrollback (file contents):
Revision 1.10 by root, Tue Jan 10 04:26:54 2006 UTC vs.
Revision 1.38 by sf-exg, Sun Jun 8 19:40:20 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#:META:BINDING:M-s:start
7
8=head1 NAME
9
10searchable-scrollback - incremental scrollback search (enabled by default)
11
12=head1 DESCRIPTION
13
14Adds regex search functionality to the scrollback buffer, triggered by
15the C<searchable-scrollback:start> action (bound to C<M-s> by
16default). While in search mode, normal terminal input/output is
17suspended and a regex is displayed at the bottom of the screen.
18
19Inputting characters appends them to the regex and continues incremental
20search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
21search upwards/downwards in the scrollback buffer, C<End> jumps to the
22bottom. C<Escape> leaves search mode and returns to the point where search
23was started, while C<Enter> or C<Return> stay at the current position and
24additionally stores the first match in the current line into the primary
25selection if the C<Shift> modifier is active.
26
27The regex defaults to "(?i)", resulting in a case-insensitive search. To
28get a case-sensitive search you can delete this prefix using C<BackSpace>
29or simply use an uppercase character which removes the "(?i)" prefix.
30
31See L<perlre> for more info about perl regular expression syntax.
32
33=cut
34
5sub on_init { 35sub on_init {
6 my ($self) = @_; 36 my ($self) = @_;
7 37
38 # only for backwards compatibility
8 my $hotkey = $self->{argv}[0] || "M-s"; 39 my $hotkey = $self->{argv}[0]
40 || $self->x_resource ("%")
41 || return;
9 42
10 $self->parse_keysym ($hotkey, "perl:searchable-scrollback:start") 43 $self->bind_action ($hotkey, "searchable-scrollback:start") # ugh
11 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";
12 45
13 () 46 ()
14} 47}
15 48
16sub on_keyboard_command { 49sub on_action {
17 my ($self, $cmd) = @_; 50 my ($self, $action) = @_;
18 51
19 $cmd eq "searchable-scrollback:start" 52 $action eq "start"
20 and $self->enter; 53 and $self->enter;
21 54
22 () 55 ()
23} 56}
24 57
… …
32sub enter { 65sub enter {
33 my ($self) = @_; 66 my ($self) = @_;
34 67
35 return if $self->{overlay}; 68 return if $self->{overlay};
36 69
37 $self->{history} = [];
38 $self->{view_start} = $self->view_start; 70 $self->{view_start} = $self->view_start;
39 $self->{pty_ev_events} = $self->pty_ev_events (urxvt::EVENT_NONE); 71 $self->{pty_ev_events} = $self->pty_ev_events (urxvt::EV_NONE);
72 $self->{row} = $self->nrow - 1;
73 $self->{search} = "(?i)";
40 74
41 $self->enable ( 75 $self->enable (
42 key_press => \&key_press, 76 key_press => \&key_press,
43 tt_write => \&tt_write, 77 tt_write => \&tt_write,
44 refresh_begin => \&refresh, 78 refresh_begin => \&refresh,
45 refresh_end => \&refresh, 79 refresh_end => \&refresh,
46 ); 80 );
47 81
48 $self->{manpage_overlay} = $self->overlay (0, -2, $self->ncol, 1, urxvt::OVERLAY_RSTYLE, 0); 82 $self->{manpage_overlay} = $self->overlay (0, -2, $self->ncol, 1, urxvt::OVERLAY_RSTYLE, 0);
49 $self->{manpage_overlay}->set (0, 0, "scrollback search, see man ${urxvt::RXVTNAME}perl for details"); 83 $self->{manpage_overlay}->set (0, 0, "scrollback search, see the ${urxvt::RXVTNAME}perl manpage for details");
50 84
51 $self->idle; 85 $self->idle;
52} 86}
53 87
54sub leave { 88sub leave {
… …
57 $self->disable ("key_press", "tt_write", "refresh_begin", "refresh_end"); 91 $self->disable ("key_press", "tt_write", "refresh_begin", "refresh_end");
58 $self->pty_ev_events ($self->{pty_ev_events}); 92 $self->pty_ev_events ($self->{pty_ev_events});
59 93
60 delete $self->{manpage_overlay}; 94 delete $self->{manpage_overlay};
61 delete $self->{overlay}; 95 delete $self->{overlay};
62 delete $self->{history}; 96 delete $self->{search};
63} 97}
64 98
65sub idle { 99sub idle {
66 my ($self) = @_; 100 my ($self) = @_;
67 101
68 $self->msg ("escape=exit, enter=accept, /=start search, n=next, p=previous, G=bottom"); 102 $self->msg ("(escape cancels) /$self->{search}█");
69
70 delete $self->{in_search};
71} 103}
72 104
73sub search { 105sub search {
74 my ($self, $offset) = @_; 106 my ($self, $dir, $row) = @_;
75
76 my $row = -$self->view_start + ($self->nrow >> 1) + $offset;
77
78 delete $self->{found};
79 107
80 my $search = $self->special_encode ($self->{search}); 108 my $search = $self->special_encode ($self->{search});
81 109
82 no re 'eval'; # just to be sure 110 no re 'eval'; # just to be sure
83 my $re = qr/$search/; 111 if (my $re = eval { qr/$search/ }) {
84 112 while ($self->nrow > $row && $row >= $self->top_row) {
85 while ($row > -$self->nsaved) {
86 my $line = $self->line ($row) 113 my $line = $self->line ($row)
87 or last; 114 or last;
88 115
89 my $text = $line->t; 116 my $text = $line->t;
90 if ($text =~ /$re/g) { 117 if ($text =~ /$re/g) {
118 delete $self->{found};
119
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
124 $self->{row} = $row;
95 $self->view_start (-$row + ($self->nrow >> 1)); 125 $self->view_start (List::Util::min 0, $row - ($self->nrow >> 1));
126 $self->want_refresh;
96 last; 127 last;
128 }
129
130 $row = $dir < 0 ? $line->beg - 1 : $line->end + 1;
97 } 131 }
98
99 $row = $line->beg - 1;
100 } 132 }
101 133
102 $self->msg ("enter/type/backspace: /$self->{search}_"
103 . ($self->{found} ? "" : " (not found)"));
104 $self->scr_bell unless $self->{found}; 134 $self->scr_bell unless $self->{found};
105} 135}
106 136
107sub refresh { 137sub refresh {
108 my ($self) = @_; 138 my ($self) = @_;
109 139
110 return unless $self->{found}; 140 return unless $self->{found};
111 141
112 $self->scr_xor_span (@$_, urxvt::SET_FGCOLOR (urxvt::RS_RVid, 15)) 142 my $xor = urxvt::RS_RVid | urxvt::RS_Blink;
113 for @{ $self->{found} }; 143 for (@{ $self->{found} }) {
144 $self->scr_xor_span (@$_, $xor);
145 $xor = urxvt::RS_RVid;
146 }
114 147
115 () 148 ()
116} 149}
117 150
118sub key_press { 151sub key_press {
119 my ($self, $event, $keysym, $string) = @_; 152 my ($self, $event, $keysym, $string) = @_;
120 153
121 if (exists $self->{in_search}) { 154 delete $self->{manpage_overlay};
155
122 if ($keysym == 0xff0d || $keysym == 0xff8d) { 156 if ($keysym == 0xff0d || $keysym == 0xff8d) { # enter
123 $self->idle; 157 if ($self->{found} && $event->{state} & urxvt::ShiftMask) {
124 } elsif ($keysym == 0xff1b) { 158 my ($br, $bc, $er, $ec) = @{ $self->{found}[0] };
125 $self->view_start ($self->{in_search}); 159 $self->selection_beg ($br, $bc);
126 $self->idle; 160 $self->selection_end ($er, $ec);
127 } elsif ($keysym == 0xff08) { 161 $self->selection_make ($event->{time});
128 substr $self->{search}, -1, 1, "";
129 $self->search;
130 } elsif ($string ne "") {
131 return;
132 } 162 }
133
134 } else {
135 if ($keysym == 0xff0d || $keysym == 0xff8d) {
136 # TODO: set selection
137 $self->leave; 163 $self->leave;
138 } elsif ($keysym == 0xff1b) { 164 } elsif ($keysym == 0xff1b) { # escape
139 $self->view_start ($self->{view_start}); 165 $self->view_start ($self->{view_start});
140 $self->leave; 166 $self->leave;
141 } elsif ($keysym == 0xff52) { 167 } elsif ($keysym == 0xff57) { # end
142 $self->view_start ($self->view_start + 1); 168 $self->{row} = $self->nrow - 1;
143 } elsif ($keysym == 0xff54) {
144 $self->view_start ($self->view_start - 1);
145 } elsif ($string eq "/") {
146 delete $self->{manpage_overlay};
147 $self->{in_search} = $self->view_start;
148 $self->search;
149 } elsif ($string eq "G") {
150 $self->{history} = [];
151 $self->view_start (0); 169 $self->view_start (0);
152 } elsif ($string eq "n") { 170 } elsif ($keysym == 0xff52) { # up
153 if ($self->{found} && @{ $self->{found} }) { 171 my $line = $self->line ($self->{row});
154 push @{ $self->{history} }, [$self->view_start, $self->{found}]; 172 $self->search (-1, $line->beg - 1)
155 $self->search (-1); 173 if $line->beg > $self->top_row;
174 } elsif ($keysym == 0xff54) { # down
175 my $line = $self->line ($self->{row});
176 $self->search (+1, $line->end + 1)
177 if $line->end < $self->nrow;
178 } elsif ($keysym == 0xff08) { # backspace
179 substr $self->{search}, -1, 1, "";
180 $self->search (+1, $self->{row});
156 $self->idle; 181 $self->idle;
157 } 182 } elsif ($string !~ /[\x00-\x1f\x80-\xaf]/) {
158 } elsif ($string eq "p" or $string eq "N") { 183 return; # pass to tt_write
159 if (my $prev = pop @{ $self->{history} }) {
160 $self->view_start ($prev->[0]);
161 $self->{found} = $prev->[1];
162 $self->want_refresh;
163 }
164 } elsif ($string ne "") {
165 $self->scr_bell;
166 }
167 } 184 }
168 185
169 1 186 1
170} 187}
171 188
172sub tt_write { 189sub tt_write {
173 my ($self, $data) = @_; 190 my ($self, $data) = @_;
174 191
175 $self->{search} .= $self->locale_decode ($data); 192 $self->{search} .= $self->locale_decode ($data);
193
194 $self->{search} =~ s/^\(\?i\)//
195 if $self->{search} =~ /^\(.*[[:upper:]]/;
196
197 delete $self->{found};
198 $self->search (-1, $self->{row});
176 $self->search; 199 $self->idle;
177 200
178 1 201 1
179} 202}
180 203
181 204

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