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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 1.39 by sf-exg, Mon Jun 9 19:40:42 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_user_command { 49sub on_action {
19 my ($self, $cmd) = @_; 50 my ($self, $action) = @_;
20 51
21 $cmd eq "searchable-scrollback:start" 52 $action eq "start"
22 and $self->enter; 53 and $self->enter;
23 54
24 () 55 ()
25} 56}
26 57
… …
35 my ($self) = @_; 66 my ($self) = @_;
36 67
37 return if $self->{overlay}; 68 return if $self->{overlay};
38 69
39 $self->{view_start} = $self->view_start; 70 $self->{view_start} = $self->view_start;
40 $self->{pty_ev_events} = $self->pty_ev_events (urxvt::EVENT_NONE); 71 $self->{pty_ev_events} = $self->pty_ev_events (urxvt::EV_NONE);
41 $self->{row} = $self->nrow - 1; 72 $self->{row} = $self->nrow - 1;
42 $self->{search} = "(?i)"; 73 $self->{search} = "(?i)";
43 74
44 $self->enable ( 75 $self->enable (
45 key_press => \&key_press, 76 key_press => \&key_press,
… …
60 $self->disable ("key_press", "tt_write", "refresh_begin", "refresh_end"); 91 $self->disable ("key_press", "tt_write", "refresh_begin", "refresh_end");
61 $self->pty_ev_events ($self->{pty_ev_events}); 92 $self->pty_ev_events ($self->{pty_ev_events});
62 93
63 delete $self->{manpage_overlay}; 94 delete $self->{manpage_overlay};
64 delete $self->{overlay}; 95 delete $self->{overlay};
65 delete $self->{history};
66 delete $self->{search}; 96 delete $self->{search};
67} 97}
68 98
69sub idle { 99sub idle {
70 my ($self) = @_; 100 my ($self) = @_;
71 101
72 $self->msg ("(escape cancels) /$self->{search}█"); 102 $self->msg ("(escape cancels) /$self->{search}█");
73} 103}
74 104
75sub search { 105sub search {
76 my ($self, $dir) = @_; 106 my ($self, $dir, $row) = @_;
77
78 delete $self->{found};
79 my $row = $self->{row};
80 107
81 my $search = $self->special_encode ($self->{search}); 108 my $search = $self->special_encode ($self->{search});
82 109
83 no re 'eval'; # just to be sure 110 no re 'eval'; # just to be sure
84 if (my $re = eval { qr/$search/ }) { 111 if (my $re = eval { qr/$search/ }) {
85 while ($self->nrow > $row && $row > $self->top_row) { 112 while ($self->nrow > $row && $row >= $self->top_row) {
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
95 $self->{row} = $row; 124 $self->{row} = $row;
96 $self->view_start (List::Util::min 0, $row - ($self->nrow >> 1)); 125 $self->view_start (List::Util::min 0, $row - ($self->nrow >> 1));
97 $self->want_refresh; 126 $self->want_refresh;
98 last; 127 return;
99 } 128 }
100 129
101 $row = $dir < 0 ? $line->beg - 1 : $line->end + 1; 130 $row = $dir < 0 ? $line->beg - 1 : $line->end + 1;
102 } 131 }
103 } 132 }
104 133
105 $self->scr_bell unless $self->{found}; 134 $self->scr_bell;
106} 135}
107 136
108sub refresh { 137sub refresh {
109 my ($self) = @_; 138 my ($self) = @_;
110 139
… …
137 $self->leave; 166 $self->leave;
138 } elsif ($keysym == 0xff57) { # end 167 } elsif ($keysym == 0xff57) { # end
139 $self->{row} = $self->nrow - 1; 168 $self->{row} = $self->nrow - 1;
140 $self->view_start (0); 169 $self->view_start (0);
141 } elsif ($keysym == 0xff52) { # up 170 } elsif ($keysym == 0xff52) { # up
142 $self->{row}-- if $self->{row} > $self->top_row; 171 my $line = $self->line ($self->{row});
143 $self->search (-1); 172 $self->search (-1, $line->beg - 1)
173 if $line->beg > $self->top_row;
144 } elsif ($keysym == 0xff54) { # down 174 } elsif ($keysym == 0xff54) { # down
145 $self->{row}++ if $self->{row} < $self->nrow; 175 my $line = $self->line ($self->{row});
146 $self->search (+1); 176 $self->search (+1, $line->end + 1)
177 if $line->end < $self->nrow;
147 } elsif ($keysym == 0xff08) { # backspace 178 } elsif ($keysym == 0xff08) { # backspace
148 substr $self->{search}, -1, 1, ""; 179 substr $self->{search}, -1, 1, "";
149 $self->search; 180 $self->search (+1, $self->{row});
150 $self->idle; 181 $self->idle;
151 } elsif ($string !~ /[\x00-\x1f\x80-\xaf]/) { 182 } elsif ($string !~ /[\x00-\x1f\x80-\xaf]/) {
152 return; # pass to tt_write 183 return; # pass to tt_write
153 } 184 }
154 185
… …
160 191
161 $self->{search} .= $self->locale_decode ($data); 192 $self->{search} .= $self->locale_decode ($data);
162 193
163 $self->{search} =~ s/^\(\?i\)// 194 $self->{search} =~ s/^\(\?i\)//
164 if $self->{search} =~ /^\(.*[[:upper:]]/; 195 if $self->{search} =~ /^\(.*[[:upper:]]/;
165 196
197 delete $self->{found};
166 $self->search (-1); 198 $self->search (-1, $self->{row});
167 $self->idle; 199 $self->idle;
168 200
169 1 201 1
170} 202}
171 203

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