1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
|
# Search within your typed history as you type (like ctrl-R in bash)
# Usage:
# * Setup: /bind ^R /history_search_start
# * Then type ctrl-R and type what you're searching for
# * You can cycle through multiple matches with ^R (older matches), and
# ^S (newer matches)
# * Hitting enter selects a match and terminates search mode.
# * You can use ^G to exit search mode without selecting.
# Original script Copyright 2007 Wouter Coekaerts <coekie@irssi.org>
# Heavy modifications by Shabble <shabble+irssi@metavore.org>, 2010.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
use strict;
use Irssi;
use Irssi::TextUI;
use Data::Dumper;
use vars qw($VERSION %IRSSI);
$VERSION = '1.0';
%IRSSI =
(
authors => 'Wouter Coekaerts, Tom Feist',
contact => 'coekie@irssi.org',
name => 'rl_history_search',
description => 'Search within your typed history as you type'
. ' (like ctrl-R in readline applications)',
license => 'GPLv2 or later',
url => 'http://wouter.coekaerts.be/irssi/',
changed => '24/7/2010'
);
my $search_str = '';
my $search_active = 0;
my @history_cache = ();
my @search_matches = ();
my $match_index = 0;
sub DEBUG () { 0 }
# check we have prompt_info loaded.
sub script_is_loaded {
my $name = shift;
print "Checking if $name is loaded" if DEBUG;
no strict 'refs';
my $retval = defined %{ "Irssi::Script::${name}::" };
use strict 'refs';
return $retval;
}
unless (script_is_loaded('prompt_info')) {
die "This script requires 'prompt_info' in order to work. "
. "Please load it and try again";
} else {
history_init();
}
sub history_init {
Irssi::command_bind('history_search_start', \&history_search);
#Irssi::command_bind('history_search_exit', \&history_search_exit);
Irssi::signal_add_first('gui key pressed' => \&handle_keypress);
}
sub history_search {
$search_active = 1;
$search_str = '';
$match_index = -1;
@history_cache = Irssi::active_win()->get_history_lines();
@search_matches = ();
update_history_prompt();
}
sub history_exit {
$search_active = 0;
Irssi::signal_emit('change prompt', '');
}
sub update_history_prompt {
Irssi::signal_emit('change prompt', " reverse-i-search: \`$search_str'");
}
sub update_history_matches {
my ($match_str) = @_;
$match_str //= $search_str;
my %unique;
my @matches = grep { m/\Q$match_str/i } @history_cache;
@search_matches = ();
# uniquify the results, whilst maintaining order.
foreach my $m (@matches) {
unless (exists($unique{$m})) {
# add them in reverse order.
unshift @search_matches, $m;
}
$unique{$m}++;
}
print "updated matches: ", scalar(@search_matches), " ",
join(", ", @search_matches) if DEBUG;
}
sub get_history_match {
return $search_matches[$match_index];
}
sub prev_match {
$match_index++;
if ($match_index > $#search_matches) {
$match_index = 0;
}
print "index now: $match_index" if DEBUG;
}
sub next_match {
$match_index--;
if ($match_index < 0) {
$match_index = $#search_matches;
}
print "index now: $match_index" if DEBUG;
}
sub update_input {
my $match = get_history_match();
Irssi::gui_input_set($match);
Irssi::gui_input_set_pos(length $match);
}
sub handle_keypress {
my ($key) = @_;
return unless $search_active;
if ($key == 10) { # enter
print "selecting history and quitting" if DEBUG;
history_exit();
return;
}
if ($key == 18) { # Ctrl-R
print "skipping to prev match" if DEBUG;
prev_match();
update_input();
update_history_prompt();
Irssi::signal_stop(); # prevent the bind from being re-triggered.
return;
}
if ($key == 19) { # Ctrl-S
print "skipping to next match" if DEBUG;
next_match();
update_input();
update_history_prompt();
Irssi::signal_stop();
return;
}
if ($key == 7) { # Ctrl-G
print "aborting search" if DEBUG;
history_exit();
# cancel empties the inputline.
Irssi::gui_input_set('');
Irssi::gui_input_set_pos(0);
Irssi::signal_stop();
return;
}
if ($key == 127) { # DEL
if (length $search_str) {
$search_str = substr($search_str, 0, -1);
print "Deleting char, now: $search_str" if DEBUG;
}
update_history_matches();
update_history_prompt();
Irssi::signal_stop();
return;
}
# TODO: handle esc- sequences and arrow-keys?
if ($key >= 32) { # printable
$search_str .= chr($key);
update_history_matches();
update_history_prompt();
update_input();
Irssi::signal_stop();
return;
}
# any other key exits, for now.
history_exit();
#Irssi::signal_stop();
}
|
