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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 1.23 by ayin, Wed Aug 1 17:55:37 2007 UTC vs.
Revision 1.42 by root, Fri Dec 26 18:58:19 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, "searchable-scrollback: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
… …
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));
… …
35 my ($self) = @_; 74 my ($self) = @_;
36 75
37 return if $self->{overlay}; 76 return if $self->{overlay};
38 77
39 $self->{view_start} = $self->view_start; 78 $self->{view_start} = $self->view_start;
40 $self->{pty_ev_events} = $self->pty_ev_events (urxvt::EVENT_NONE); 79 $self->{pty_ev_events} = $self->pty_ev_events (urxvt::EV_NONE);
41 $self->{row} = $self->nrow - 1; 80 $self->{row} = $self->nrow - 1;
42 $self->{search} = "(?i)"; 81 $self->{search} = "(?i)";
43 82
44 $self->enable ( 83 $self->enable (
45 key_press => \&key_press, 84 key_press => \&key_press,
… …
60 $self->disable ("key_press", "tt_write", "refresh_begin", "refresh_end"); 99 $self->disable ("key_press", "tt_write", "refresh_begin", "refresh_end");
61 $self->pty_ev_events ($self->{pty_ev_events}); 100 $self->pty_ev_events ($self->{pty_ev_events});
62 101
63 delete $self->{manpage_overlay}; 102 delete $self->{manpage_overlay};
64 delete $self->{overlay}; 103 delete $self->{overlay};
65 delete $self->{history};
66 delete $self->{search}; 104 delete $self->{search};
105 delete $self->{found};
67} 106}
68 107
69sub idle { 108sub idle {
70 my ($self) = @_; 109 my ($self) = @_;
71 110
72 $self->msg ("(escape cancels) /$self->{search}█"); 111 $self->msg ("(escape cancels) /$self->{search}█");
73} 112}
74 113
75sub search { 114sub search {
76 my ($self, $dir) = @_; 115 my ($self, $dir, $row) = @_;
77
78 delete $self->{found};
79 my $row = $self->{row};
80 116
81 my $search = $self->special_encode ($self->{search}); 117 my $search = $self->special_encode ($self->{search});
82 118
83 no re 'eval'; # just to be sure 119 no re 'eval'; # just to be sure
84 if (my $re = eval { qr/$search/ }) { 120 if (my $re = eval { qr/$search/ }) {
85 while ($self->nrow > $row && $row > $self->top_row) { 121 while ($self->nrow > $row && $row >= $self->top_row) {
86 my $line = $self->line ($row) 122 my $line = $self->line ($row)
87 or last; 123 or last;
88 124
89 my $text = $line->t; 125 my $text = $line->t;
90 if ($text =~ /$re/g) { 126 if ($text =~ /$re/g) {
127 delete $self->{found};
128
91 do { 129 do {
92 push @{ $self->{found} }, [$line->coord_of ($-[0]), $line->coord_of ($+[0])]; 130 push @{ $self->{found} }, [$line->coord_of ($-[0]), $line->coord_of ($+[0])];
93 } while $text =~ /$re/g; 131 } while $text =~ /$re/g;
94 132
95 $self->{row} = $row; 133 $self->{row} = $row;
96 $self->view_start (List::Util::min 0, $row - ($self->nrow >> 1)); 134 $self->view_start (List::Util::min 0, $row - ($self->nrow >> 1));
97 $self->want_refresh; 135 $self->want_refresh;
98 last; 136 return;
99 } 137 }
100 138
101 $row = $dir < 0 ? $line->beg - 1 : $line->end + 1; 139 $row = $dir < 0 ? $line->beg - 1 : $line->end + 1;
102 } 140 }
103 } 141 }
104 142
105 $self->scr_bell unless $self->{found}; 143 $self->scr_bell;
106} 144}
107 145
108sub refresh { 146sub refresh {
109 my ($self) = @_; 147 my ($self) = @_;
110 148
… …
137 $self->leave; 175 $self->leave;
138 } elsif ($keysym == 0xff57) { # end 176 } elsif ($keysym == 0xff57) { # end
139 $self->{row} = $self->nrow - 1; 177 $self->{row} = $self->nrow - 1;
140 $self->view_start (0); 178 $self->view_start (0);
141 } elsif ($keysym == 0xff52) { # up 179 } elsif ($keysym == 0xff52) { # up
142 $self->{row}-- if $self->{row} > $self->top_row; 180 my $line = $self->line ($self->{row});
143 $self->search (-1); 181 $self->search (-1, $line->beg - 1)
182 if $line->beg > $self->top_row;
144 } elsif ($keysym == 0xff54) { # down 183 } elsif ($keysym == 0xff54) { # down
145 $self->{row}++ if $self->{row} < $self->nrow; 184 my $line = $self->line ($self->{row});
146 $self->search (+1); 185 $self->search (+1, $line->end + 1)
186 if $line->end < $self->nrow;
147 } elsif ($keysym == 0xff08) { # backspace 187 } elsif ($keysym == 0xff08) { # backspace
148 substr $self->{search}, -1, 1, ""; 188 substr $self->{search}, -1, 1, "";
149 $self->search; 189 $self->search (+1, $self->{row});
150 $self->idle; 190 $self->idle;
151 } elsif ($string !~ /[\x00-\x1f\x80-\xaf]/) { 191 } elsif ($string !~ /[\x00-\x1f\x80-\xaf]/) {
152 return; # pass to tt_write 192 return; # pass to tt_write
153 } 193 }
154 194
… …
160 200
161 $self->{search} .= $self->locale_decode ($data); 201 $self->{search} .= $self->locale_decode ($data);
162 202
163 $self->{search} =~ s/^\(\?i\)// 203 $self->{search} =~ s/^\(\?i\)//
164 if $self->{search} =~ /^\(.*[[:upper:]]/; 204 if $self->{search} =~ /^\(.*[[:upper:]]/;
165 205
206 delete $self->{found};
166 $self->search (-1); 207 $self->search (-1, $self->{row});
167 $self->idle; 208 $self->idle;
168 209
169 1 210 1
170} 211}
171 212

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