1 | #! perl |
1 | #! perl |
2 | |
2 | |
3 | # this extension implements scrollback buffer search |
3 | # this extension implements scrollback buffer search |
4 | |
4 | |
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5 | #:META:X_RESOURCE:%:string:activation hotkey keysym |
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6 | #:META:KEYSYM:M-s:searchable-scrollback:start |
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7 | |
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8 | =head1 NAME |
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9 | |
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10 | searchable-scrollback<hotkey> - incremental scrollback search (enabled by default) |
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11 | |
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12 | =head1 DESCRIPTION |
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13 | |
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14 | Adds regex search functionality to the scrollback buffer, triggered |
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15 | by a hotkey (default: C<M-s>). While in search mode, normal terminal |
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16 | input/output is suspended and a regex is displayed at the bottom of the |
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17 | screen. |
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18 | |
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19 | Inputting characters appends them to the regex and continues incremental |
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20 | search. C<BackSpace> removes a character from the regex, C<Up> and C<Down> |
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21 | search upwards/downwards in the scrollback buffer, C<End> jumps to the |
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22 | bottom. C<Escape> leaves search mode and returns to the point where search |
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23 | was started, while C<Enter> or C<Return> stay at the current position and |
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24 | additionally stores the first match in the current line into the primary |
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25 | selection if the C<Shift> modifier is active. |
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26 | |
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27 | The regex defaults to "(?i)", resulting in a case-insensitive search. To |
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28 | get a case-sensitive search you can delete this prefix using C<BackSpace> |
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29 | or simply use an uppercase character which removes the "(?i)" prefix. |
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30 | |
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31 | See L<perlre> for more info about perl regular expression syntax. |
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32 | |
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33 | =cut |
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34 | |
5 | sub on_init { |
35 | sub 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 | |
18 | sub on_keyboard_command { |
48 | sub 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; |
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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 | |
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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; |
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129 | } |
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130 | |
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131 | $row = $dir < 0 ? $line->beg - 1 : $line->end + 1; |
99 | } |
132 | } |
100 | |
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101 | $row = $dir < 0 ? $line->beg - 1 : $line->end + 1; |
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102 | } |
133 | } |
103 | |
134 | |
104 | $self->scr_bell unless $self->{found}; |
135 | $self->scr_bell unless $self->{found}; |
105 | } |
136 | } |
106 | |
137 | |
107 | sub refresh { |
138 | sub refresh { |
108 | my ($self) = @_; |
139 | my ($self) = @_; |
109 | |
140 | |
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141 | return unless $self->{found}; |
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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 | $xor = urxvt::RS_RVid; |
114 | } |
147 | } |
115 | |
148 | |
… | |
… | |
119 | sub key_press { |
152 | sub key_press { |
120 | my ($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") { |
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145 | if ($self->{found} && @{ $self->{found} }) { |
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146 | push @{ $self->{history} }, [$self->view_start, $self->{found}]; |
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147 | $self->search (-1); |
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148 | $self->idle; |
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149 | } |
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150 | } elsif ($string eq "p" or $string eq "N") { |
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151 | if (my $prev = pop @{ $self->{history} }) { |
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152 | $self->view_start ($prev->[0]); |
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153 | $self->{found} = $prev->[1]; |
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154 | $self->want_refresh; |
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155 | } |
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156 | } elsif ($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 | |
167 | sub tt_write { |
188 | sub 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); |
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192 | |
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193 | $self->{search} =~ s/^\(\?i\)// |
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194 | if $self->{search} =~ /^\(.*[[:upper:]]/; |
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195 | |
171 | $self->search (-1); |
196 | $self->search (-1); |
172 | $self->idle; |
197 | $self->idle; |
173 | |
198 | |
174 | 1 |
199 | 1 |
175 | } |
200 | } |