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Comparing rxvt-unicode/src/perl/searchable-scrollback (file contents):
Revision 1.13 by root, Thu Jan 12 05:22:47 2006 UTC vs.
Revision 1.31 by root, Sat May 17 13:34:43 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:X_RESOURCE:%:string:activation hotkey keysym
6#:META:KEYSYM:M-s:searchable-scrollback:start
7
8=head1 NAME
9
10searchable-scrollback<hotkey> - incremental scrollback search (enabled by default)
11
12=head1 DESCRIPTION
13
14Adds regex search functionality to the scrollback buffer, triggered
15by a hotkey (default: C<M-s>). While in search mode, normal terminal
16input/output is suspended and a regex is displayed at the bottom of the
17screen.
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
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 $self->parse_keysym ($hotkey, "perl: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
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 $self->enter;
23 53
… …
35 my ($self) = @_; 65 my ($self) = @_;
36 66
37 return if $self->{overlay}; 67 return if $self->{overlay};
38 68
39 $self->{view_start} = $self->view_start; 69 $self->{view_start} = $self->view_start;
40 $self->{pty_ev_events} = $self->pty_ev_events (urxvt::EVENT_NONE); 70 $self->{pty_ev_events} = $self->pty_ev_events (urxvt::EV_NONE);
41 $self->{row} = $self->nrow - 1; 71 $self->{row} = $self->nrow - 1;
72 $self->{search} = "(?i)";
42 73
43 $self->enable ( 74 $self->enable (
44 key_press => \&key_press, 75 key_press => \&key_press,
45 tt_write => \&tt_write, 76 tt_write => \&tt_write,
46 refresh_begin => \&refresh, 77 refresh_begin => \&refresh,
… …
78 my $row = $self->{row}; 109 my $row = $self->{row};
79 110
80 my $search = $self->special_encode ($self->{search}); 111 my $search = $self->special_encode ($self->{search});
81 112
82 no re 'eval'; # just to be sure 113 no re 'eval'; # just to be sure
83 my $re = qr/$search/; 114 if (my $re = eval { qr/$search/ }) {
84
85 while ($self->nrow > $row && $row > -$self->nsaved) { 115 while ($self->nrow > $row && $row >= $self->top_row) {
86 my $line = $self->line ($row) 116 my $line = $self->line ($row)
87 or last; 117 or last;
88 118
89 my $text = $line->t; 119 my $text = $line->t;
90 if ($text =~ /$re/g) { 120 if ($text =~ /$re/g) {
91 do { 121 do {
92 push @{ $self->{found} }, [$line->coord_of ($-[0]), $line->coord_of ($+[0])]; 122 push @{ $self->{found} }, [$line->coord_of ($-[0]), $line->coord_of ($+[0])];
93 } while $text =~ /$re/g; 123 } while $text =~ /$re/g;
94 124
95 $self->{row} = $row; 125 $self->{row} = $row;
96 $self->view_start (-$row + ($self->nrow >> 1)); 126 $self->view_start (List::Util::min 0, $row - ($self->nrow >> 1));
97 $self->want_refresh; 127 $self->want_refresh;
98 last; 128 last;
129 }
130
131 $row = $dir < 0 ? $line->beg - 1 : $line->end + 1;
99 } 132 }
100
101 $row = $dir < 0 ? $line->beg - 1 : $line->end + 1;
102 } 133 }
103 134
104 $self->scr_bell unless $self->{found}; 135 $self->scr_bell unless $self->{found};
105} 136}
106 137
107sub refresh { 138sub refresh {
108 my ($self) = @_; 139 my ($self) = @_;
109 140
141 return unless $self->{found};
142
110 my $xor = urxvt::RS_RVid | urxvt::RS_Uline; 143 my $xor = urxvt::RS_RVid | urxvt::RS_Blink;
111 for (@{ $self->{found} }) { 144 for (@{ $self->{found} }) {
112 $self->scr_xor_span (@$_, $xor); 145 $self->scr_xor_span (@$_, $xor);
113 $xor = urxvt::RS_RVid; 146 $xor = urxvt::RS_RVid;
114 } 147 }
115 148
… …
119sub key_press { 152sub key_press {
120 my ($self, $event, $keysym, $string) = @_; 153 my ($self, $event, $keysym, $string) = @_;
121 154
122 delete $self->{manpage_overlay}; 155 delete $self->{manpage_overlay};
123 156
124 if ($keysym == 0xff0d || $keysym == 0xff8d) { 157 if ($keysym == 0xff0d || $keysym == 0xff8d) { # enter
125 if ($self->{found}) { 158 if ($self->{found} && $event->{state} & urxvt::ShiftMask) {
126 my ($br, $bc, $er, $ec) = @{ $self->{found}[0] }; 159 my ($br, $bc, $er, $ec) = @{ $self->{found}[0] };
127 $self->selection_beg ($br, $bc); 160 $self->selection_beg ($br, $bc);
128 $self->selection_end ($er, $ec); 161 $self->selection_end ($er, $ec);
129 $self->selection_make ($event->{time}); 162 $self->selection_make ($event->{time});
130 } 163 }
131 $self->leave; 164 $self->leave;
132 } elsif ($keysym == 0xff1b) { 165 } elsif ($keysym == 0xff1b) { # escape
133 $self->view_start ($self->{view_start}); 166 $self->view_start ($self->{view_start});
134 $self->leave; 167 $self->leave;
135 } elsif ($keysym == 0xff57) { 168 } elsif ($keysym == 0xff57) { # end
136 $self->{row} = $self->nrow - 1; 169 $self->{row} = $self->nrow - 1;
137 $self->view_start (0); 170 $self->view_start (0);
138 } elsif ($keysym == 0xff52) { 171 } elsif ($keysym == 0xff52) { # up
139 $self->{row}-- if $self->{row} > -$self->nsaved; 172 $self->{row}-- if $self->{row} > $self->top_row;
140 $self->search (-1); 173 $self->search (-1);
141 } elsif ($keysym == 0xff54) { 174 } elsif ($keysym == 0xff54) { # down
142 $self->{row}++ if $self->{row} < $self->nrow; 175 $self->{row}++ if $self->{row} < $self->nrow;
143 $self->search (+1); 176 $self->search (+1);
144 } elsif ($string eq "n") {
145 if ($self->{found} && @{ $self->{found} }) {
146 push @{ $self->{history} }, [$self->view_start, $self->{found}];
147 $self->search (-1);
148 $self->idle;
149 }
150 } elsif ($string eq "p" or $string eq "N") {
151 if (my $prev = pop @{ $self->{history} }) {
152 $self->view_start ($prev->[0]);
153 $self->{found} = $prev->[1];
154 $self->want_refresh;
155 }
156 } elsif ($keysym == 0xff08) { 177 } elsif ($keysym == 0xff08) { # backspace
157 substr $self->{search}, -1, 1, ""; 178 substr $self->{search}, -1, 1, "";
158 $self->search; 179 $self->search;
159 $self->idle; 180 $self->idle;
160 } elsif ($string =~ /^[^\x00-\x1f\x80-\xaf]+$/) { 181 } elsif ($string !~ /[\x00-\x1f\x80-\xaf]/) {
161 return; # pass to tt_write 182 return; # pass to tt_write
162 } 183 }
163 184
164 1 185 1
165} 186}
166 187
167sub tt_write { 188sub tt_write {
168 my ($self, $data) = @_; 189 my ($self, $data) = @_;
169 190
170 $self->{search} .= $self->locale_decode ($data); 191 $self->{search} .= $self->locale_decode ($data);
192
193 $self->{search} =~ s/^\(\?i\)//
194 if $self->{search} =~ /^\(.*[[:upper:]]/;
195
171 $self->search (-1); 196 $self->search (-1);
172 $self->idle; 197 $self->idle;
173 198
174 1 199 1
175} 200}

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