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Comparing rxvt-unicode/src/perl/searchable-scrollback (file contents):
Revision 1.27 by root, Wed Jun 6 15:06:41 2012 UTC vs.
Revision 1.40 by sf-exg, Mon Jun 9 19:54:26 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 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
6 34
7sub on_init { 35sub on_init {
8 my ($self) = @_; 36 my ($self) = @_;
9 37
38 # only for backwards compatibility
10 my $hotkey = $self->{argv}[0] 39 my $hotkey = $self->{argv}[0]
11 || $self->x_resource ("searchable-scrollback") 40 || $self->x_resource ("%")
12 || "M-s"; 41 || return;
13 42
14 $self->parse_keysym ($hotkey, "perl:searchable-scrollback:start") 43 $self->bind_action ($hotkey, "searchable-scrollback:start") # ugh
15 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";
16 45
17 () 46 ()
18} 47}
19 48
20sub on_user_command { 49sub on_user_command {
21 my ($self, $cmd) = @_; 50 my ($self, $cmd) = @_;
22 51
23 $cmd eq "searchable-scrollback:start" 52 $cmd eq "searchable-scrollback:start"
53 and $self->enter;
54
55 ()
56}
57
58sub on_action {
59 my ($self, $action) = @_;
60
61 $action eq "start"
24 and $self->enter; 62 and $self->enter;
25 63
26 () 64 ()
27} 65}
28 66
… …
62 $self->disable ("key_press", "tt_write", "refresh_begin", "refresh_end"); 100 $self->disable ("key_press", "tt_write", "refresh_begin", "refresh_end");
63 $self->pty_ev_events ($self->{pty_ev_events}); 101 $self->pty_ev_events ($self->{pty_ev_events});
64 102
65 delete $self->{manpage_overlay}; 103 delete $self->{manpage_overlay};
66 delete $self->{overlay}; 104 delete $self->{overlay};
67 delete $self->{history};
68 delete $self->{search}; 105 delete $self->{search};
69} 106}
70 107
71sub idle { 108sub idle {
72 my ($self) = @_; 109 my ($self) = @_;
73 110
74 $self->msg ("(escape cancels) /$self->{search}█"); 111 $self->msg ("(escape cancels) /$self->{search}█");
75} 112}
76 113
77sub search { 114sub search {
78 my ($self, $dir) = @_; 115 my ($self, $dir, $row) = @_;
79
80 delete $self->{found};
81 my $row = $self->{row};
82 116
83 my $search = $self->special_encode ($self->{search}); 117 my $search = $self->special_encode ($self->{search});
84 118
85 no re 'eval'; # just to be sure 119 no re 'eval'; # just to be sure
86 if (my $re = eval { qr/$search/ }) { 120 if (my $re = eval { qr/$search/ }) {
… …
88 my $line = $self->line ($row) 122 my $line = $self->line ($row)
89 or last; 123 or last;
90 124
91 my $text = $line->t; 125 my $text = $line->t;
92 if ($text =~ /$re/g) { 126 if ($text =~ /$re/g) {
127 delete $self->{found};
128
93 do { 129 do {
94 push @{ $self->{found} }, [$line->coord_of ($-[0]), $line->coord_of ($+[0])]; 130 push @{ $self->{found} }, [$line->coord_of ($-[0]), $line->coord_of ($+[0])];
95 } while $text =~ /$re/g; 131 } while $text =~ /$re/g;
96 132
97 $self->{row} = $row; 133 $self->{row} = $row;
98 $self->view_start (List::Util::min 0, $row - ($self->nrow >> 1)); 134 $self->view_start (List::Util::min 0, $row - ($self->nrow >> 1));
99 $self->want_refresh; 135 $self->want_refresh;
100 last; 136 return;
101 } 137 }
102 138
103 $row = $dir < 0 ? $line->beg - 1 : $line->end + 1; 139 $row = $dir < 0 ? $line->beg - 1 : $line->end + 1;
104 } 140 }
105 } 141 }
106 142
107 $self->scr_bell unless $self->{found}; 143 $self->scr_bell;
108} 144}
109 145
110sub refresh { 146sub refresh {
111 my ($self) = @_; 147 my ($self) = @_;
112 148
… …
139 $self->leave; 175 $self->leave;
140 } elsif ($keysym == 0xff57) { # end 176 } elsif ($keysym == 0xff57) { # end
141 $self->{row} = $self->nrow - 1; 177 $self->{row} = $self->nrow - 1;
142 $self->view_start (0); 178 $self->view_start (0);
143 } elsif ($keysym == 0xff52) { # up 179 } elsif ($keysym == 0xff52) { # up
144 $self->{row}-- if $self->{row} > $self->top_row; 180 my $line = $self->line ($self->{row});
145 $self->search (-1); 181 $self->search (-1, $line->beg - 1)
182 if $line->beg > $self->top_row;
146 } elsif ($keysym == 0xff54) { # down 183 } elsif ($keysym == 0xff54) { # down
147 $self->{row}++ if $self->{row} < $self->nrow; 184 my $line = $self->line ($self->{row});
148 $self->search (+1); 185 $self->search (+1, $line->end + 1)
186 if $line->end < $self->nrow;
149 } elsif ($keysym == 0xff08) { # backspace 187 } elsif ($keysym == 0xff08) { # backspace
150 substr $self->{search}, -1, 1, ""; 188 substr $self->{search}, -1, 1, "";
151 $self->search; 189 $self->search (+1, $self->{row});
152 $self->idle; 190 $self->idle;
153 } elsif ($string !~ /[\x00-\x1f\x80-\xaf]/) { 191 } elsif ($string !~ /[\x00-\x1f\x80-\xaf]/) {
154 return; # pass to tt_write 192 return; # pass to tt_write
155 } 193 }
156 194
… …
163 $self->{search} .= $self->locale_decode ($data); 201 $self->{search} .= $self->locale_decode ($data);
164 202
165 $self->{search} =~ s/^\(\?i\)// 203 $self->{search} =~ s/^\(\?i\)//
166 if $self->{search} =~ /^\(.*[[:upper:]]/; 204 if $self->{search} =~ /^\(.*[[:upper:]]/;
167 205
206 delete $self->{found};
168 $self->search (-1); 207 $self->search (-1, $self->{row});
169 $self->idle; 208 $self->idle;
170 209
171 1 210 1
172} 211}
173 212

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