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 1.15 by root, Thu Jan 12 07:42:39 2006 UTC vs.
Revision 1.41 by sf-exg, Tue Oct 14 09:00:52 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] 39 my $hotkey = $self->{argv}[0]
9 || $self->x_resource ("searchable-scrollback") 40 || $self->x_resource ("%")
10 || "M-s"; 41 || return;
11 42
12 $self->parse_keysym ($hotkey, "perl:searchable-scrollback:start") 43 $self->bind_action ($hotkey, "searchable-scrollback:start") # ugh
13 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";
14 45
15 () 46 ()
16} 47}
17 48
18sub on_keyboard_command { 49sub on_user_command {
19 my ($self, $cmd) = @_; 50 my ($self, $cmd) = @_;
20 51
21 $cmd eq "searchable-scrollback:start" 52 $cmd eq "searchable-scrollback:start"
22 and $self->enter; 53 and $self->enter;
23 54
24 () 55 ()
25} 56}
26 57
58sub on_action {
59 my ($self, $action) = @_;
60
61 $action eq "start"
62 and $self->enter;
63
64 ()
65}
66
27sub msg { 67sub msg {
28 my ($self, $msg) = @_; 68 my ($self, $msg) = @_;
29 69
30 $self->{overlay} = $self->overlay (0, -1, $self->ncol, 1, urxvt::OVERLAY_RSTYLE, 0); 70 $self->{overlay} = $self->overlay (0, -1, $self->ncol, 1, urxvt::OVERLAY_RSTYLE, 0);
31 $self->{overlay}->set (0, 0, $self->special_encode ($msg)); 71 $self->{overlay}->set (0, 0, $self->special_encode ($msg));
… …
35 my ($self) = @_; 75 my ($self) = @_;
36 76
37 return if $self->{overlay}; 77 return if $self->{overlay};
38 78
39 $self->{view_start} = $self->view_start; 79 $self->{view_start} = $self->view_start;
40 $self->{pty_ev_events} = $self->pty_ev_events (urxvt::EVENT_NONE); 80 $self->{pty_ev_events} = $self->pty_ev_events (urxvt::EV_NONE);
41 $self->{row} = $self->nrow - 1; 81 $self->{row} = $self->nrow - 1;
82 $self->{search} = "(?i)";
42 83
43 $self->enable ( 84 $self->enable (
44 key_press => \&key_press, 85 key_press => \&key_press,
45 tt_write => \&tt_write, 86 tt_write => \&tt_write,
46 refresh_begin => \&refresh, 87 refresh_begin => \&refresh,
… …
59 $self->disable ("key_press", "tt_write", "refresh_begin", "refresh_end"); 100 $self->disable ("key_press", "tt_write", "refresh_begin", "refresh_end");
60 $self->pty_ev_events ($self->{pty_ev_events}); 101 $self->pty_ev_events ($self->{pty_ev_events});
61 102
62 delete $self->{manpage_overlay}; 103 delete $self->{manpage_overlay};
63 delete $self->{overlay}; 104 delete $self->{overlay};
64 delete $self->{history};
65 delete $self->{search}; 105 delete $self->{search};
106 delete $self->{found};
66} 107}
67 108
68sub idle { 109sub idle {
69 my ($self) = @_; 110 my ($self) = @_;
70 111
71 $self->msg ("(escape cancels) /$self->{search}█"); 112 $self->msg ("(escape cancels) /$self->{search}█");
72} 113}
73 114
74sub search { 115sub search {
75 my ($self, $dir) = @_; 116 my ($self, $dir, $row) = @_;
76
77 delete $self->{found};
78 my $row = $self->{row};
79 117
80 my $search = $self->special_encode ($self->{search}); 118 my $search = $self->special_encode ($self->{search});
81 119
82 no re 'eval'; # just to be sure 120 no re 'eval'; # just to be sure
83 my $re = qr/$search/; 121 if (my $re = eval { qr/$search/ }) {
84
85 while ($self->nrow > $row && $row > -$self->nsaved) { 122 while ($self->nrow > $row && $row >= $self->top_row) {
86 my $line = $self->line ($row) 123 my $line = $self->line ($row)
87 or last; 124 or last;
88 125
89 my $text = $line->t; 126 my $text = $line->t;
90 if ($text =~ /$re/g) { 127 if ($text =~ /$re/g) {
128 delete $self->{found};
129
91 do { 130 do {
92 push @{ $self->{found} }, [$line->coord_of ($-[0]), $line->coord_of ($+[0])]; 131 push @{ $self->{found} }, [$line->coord_of ($-[0]), $line->coord_of ($+[0])];
93 } while $text =~ /$re/g; 132 } while $text =~ /$re/g;
94 133
95 $self->{row} = $row; 134 $self->{row} = $row;
96 $self->view_start (-$row + ($self->nrow >> 1)); 135 $self->view_start (List::Util::min 0, $row - ($self->nrow >> 1));
97 $self->want_refresh; 136 $self->want_refresh;
137 return;
98 last; 138 }
139
140 $row = $dir < 0 ? $line->beg - 1 : $line->end + 1;
99 } 141 }
100
101 $row = $dir < 0 ? $line->beg - 1 : $line->end + 1;
102 } 142 }
103 143
104 $self->scr_bell unless $self->{found}; 144 $self->scr_bell;
105} 145}
106 146
107sub refresh { 147sub refresh {
108 my ($self) = @_; 148 my ($self) = @_;
149
150 return unless $self->{found};
109 151
110 my $xor = urxvt::RS_RVid | urxvt::RS_Blink; 152 my $xor = urxvt::RS_RVid | urxvt::RS_Blink;
111 for (@{ $self->{found} }) { 153 for (@{ $self->{found} }) {
112 $self->scr_xor_span (@$_, $xor); 154 $self->scr_xor_span (@$_, $xor);
113 $xor = urxvt::RS_RVid; 155 $xor = urxvt::RS_RVid;
… …
120 my ($self, $event, $keysym, $string) = @_; 162 my ($self, $event, $keysym, $string) = @_;
121 163
122 delete $self->{manpage_overlay}; 164 delete $self->{manpage_overlay};
123 165
124 if ($keysym == 0xff0d || $keysym == 0xff8d) { # enter 166 if ($keysym == 0xff0d || $keysym == 0xff8d) { # enter
125 if ($self->{found}) { 167 if ($self->{found} && $event->{state} & urxvt::ShiftMask) {
126 my ($br, $bc, $er, $ec) = @{ $self->{found}[0] }; 168 my ($br, $bc, $er, $ec) = @{ $self->{found}[0] };
127 $self->selection_beg ($br, $bc); 169 $self->selection_beg ($br, $bc);
128 $self->selection_end ($er, $ec); 170 $self->selection_end ($er, $ec);
129 $self->selection_make ($event->{time}); 171 $self->selection_make ($event->{time});
130 } 172 }
… …
134 $self->leave; 176 $self->leave;
135 } elsif ($keysym == 0xff57) { # end 177 } elsif ($keysym == 0xff57) { # end
136 $self->{row} = $self->nrow - 1; 178 $self->{row} = $self->nrow - 1;
137 $self->view_start (0); 179 $self->view_start (0);
138 } elsif ($keysym == 0xff52) { # up 180 } elsif ($keysym == 0xff52) { # up
139 $self->{row}-- if $self->{row} > -$self->nsaved; 181 my $line = $self->line ($self->{row});
140 $self->search (-1); 182 $self->search (-1, $line->beg - 1)
183 if $line->beg > $self->top_row;
141 } elsif ($keysym == 0xff54) { # down 184 } elsif ($keysym == 0xff54) { # down
142 $self->{row}++ if $self->{row} < $self->nrow; 185 my $line = $self->line ($self->{row});
143 $self->search (+1); 186 $self->search (+1, $line->end + 1)
187 if $line->end < $self->nrow;
144 } elsif ($keysym == 0xff08) { # backspace 188 } elsif ($keysym == 0xff08) { # backspace
145 substr $self->{search}, -1, 1, ""; 189 substr $self->{search}, -1, 1, "";
146 $self->search; 190 $self->search (+1, $self->{row});
147 $self->idle; 191 $self->idle;
148 } elsif ($string =~ /^[^\x00-\x1f\x80-\xaf]+$/) { 192 } elsif ($string !~ /[\x00-\x1f\x80-\xaf]/) {
149 return; # pass to tt_write 193 return; # pass to tt_write
150 } 194 }
151 195
152 1 196 1
153} 197}
154 198
155sub tt_write { 199sub tt_write {
156 my ($self, $data) = @_; 200 my ($self, $data) = @_;
157 201
158 $self->{search} .= $self->locale_decode ($data); 202 $self->{search} .= $self->locale_decode ($data);
203
204 $self->{search} =~ s/^\(\?i\)//
205 if $self->{search} =~ /^\(.*[[:upper:]]/;
206
207 delete $self->{found};
159 $self->search (-1); 208 $self->search (-1, $self->{row});
160 $self->idle; 209 $self->idle;
161 210
162 1 211 1
163} 212}
164 213

Diff Legend

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