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authorricho <richo@psych0tik.net>2011-07-18 03:36:40 +0000
committerricho <richo@psych0tik.net>2011-07-18 03:36:40 +0000
commite4b9ea15d7abdae8211d18737fa54933f3faf57b (patch)
treefda4cc23faebfd1f130578b39fe161fe4c0ba1f8 /history-search
parentAdded goodnicks from richoH/richos-irssi (diff)
parentOnly attempt join if channel exists (diff)
downloadirssi-scripts-e4b9ea15d7abdae8211d18737fa54933f3faf57b.tar.gz
irssi-scripts-e4b9ea15d7abdae8211d18737fa54933f3faf57b.zip
Merge branch 'master' into richoH-dev
Diffstat (limited to '')
-rw-r--r--history-search/README.pod149
-rw-r--r--history-search/rl_history_search.pl564
2 files changed, 619 insertions, 94 deletions
diff --git a/history-search/README.pod b/history-search/README.pod
new file mode 100644
index 0000000..830eb5f
--- /dev/null
+++ b/history-search/README.pod
@@ -0,0 +1,149 @@
+=pod
+
+=head1 NAME
+
+rl_history_search.pl
+
+=head1 DESCRIPTION
+
+Search within your typed history as you type (something like ctrl-R in bash or other
+readline-type applications.)
+
+=head1 INSTALLATION
+
+Copy into your F<~/.irssi/scripts/> directory and load with
+C</SCRIPT LOAD F<filename>>.
+
+This script requires that you have first installed and loaded F<uberprompt.pl>
+
+Uberprompt can be downloaded from:
+
+L<https://github.com/shabble/irssi-scripts/raw/master/prompt_info/uberprompt.pl>
+
+and follow the instructions at the top of that file or its README for installation.
+
+If uberprompt.pl is available, but not loaded, this script will make one
+attempt to load it before giving up. This eliminates the need to precisely
+arrange the startup order of your scripts.
+
+=head1 SETUP
+
+C</bind ^R /history_search_start>
+
+Where C<^R> is a key of your choice.
+
+=head1 USAGE
+
+Type C<ctrl-R> followed by your search string. The prompt line will show
+you the most recent command to match the string you've typed.
+
+B<Tip:> You can cycle through multiple matches with C<Ctrl-R> (to select older
+matches), and <Ctrl-S> (to select newer matches). Cycling off the end of the
+history list returns you to the other end again.
+
+B<NOTE:> C<Ctrl-S> may not work if you have software flow control configured for
+your terminal. It may appear to freeze irssi entirely. If this happens, it can
+be restored with C<Ctrl-Q>, but you will be unable to use the C<Ctrl-S> binding.
+You can disable flow control by running the command C<stty -ixon> in your
+terminal, or setting C<defflow off> in your F<~/.screenrc>if using GNU Screen.
+
+=head2 COMMANDS
+
+=over 4
+
+=item * C<Enter>
+
+Selects a match and terminates search mode.
+B<It will also run the currently selected command.>
+
+=item * C<Ctrl-G>
+
+Exits search mode without selecting.
+
+=item * C<E<lt>TABE<gt>>
+
+Opens a new split window, showing all matching completions. C<E<lt>EscE<gt>>
+will close the window again, as will any other action that exits history search
+mode. Possible candidates can be cycled through as normal using C<C-r> and
+C<<C-s>.
+
+=item * Any other ctrl- or meta- key
+
+This will terminate search mode, leaving the selected item in the input line.
+It will not run the command (Except for C<Ctrl-J> and C<Ctrl-M>, which are
+functionally equivalent to C<Enter>).
+
+=back
+
+=head1 AUTHORS
+
+Original script
+L<http://github.com/coekie/irssi-scripts/blob/master/history_search.pl>
+ Copyright E<copy> 2007 Wouter Coekaerts C<E<lt>coekie@irssi.orgE<gt>>
+
+
+Most of the other fancy stuff Copyright E<copy> 2011 Tom Feist
+C<E<lt>shabble+irssi@metavore.orgE<gt>>
+
+=head1 LICENCE
+
+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
+
+=head1 BUGS
+
+Yeah, probably.
+
+=head1 TODO
+
+=over 1
+
+=item * B<DONE> document tab behaviour
+
+=item * add keys (C-n/C-p) to scroll history list if necessary.
+
+=item * B<DONE> if list is bigger than split size, centre it so selected item is visible
+
+=item * I<INPROG> allow a mechanism to select by number from list
+
+=item * steal more of the code from ido_switcher to hilight match positions.
+
+=item * make flex matching optional (key or setting)
+
+=item * add some online help (? or C-h triggered, maybe?)
+
+=item * make temp_split stuff more generic (to be used by help, etc)
+
+=item * figure out why sometimes the split list doesn't update correctly (eg: no matches)
+
+=item * consider tracking history manually (via send command/send text)
+
+=over 4
+
+=item * Pro: we could timestamp it.
+
+=item * Con: Would involve catching up/down and all the other history selection mechanisms.
+
+=item * Compromise - tag history as it comes it (match it with data via sig handlers?)
+
+=back
+
+=item * Possibility of saving/restoring history over sessions?
+
+=back
+
+
+
+=cut
+
diff --git a/history-search/rl_history_search.pl b/history-search/rl_history_search.pl
index ca45fe5..016249d 100644
--- a/history-search/rl_history_search.pl
+++ b/history-search/rl_history_search.pl
@@ -1,79 +1,190 @@
-# Search within your typed history as you type (like ctrl-R in bash)
-#
-# INSTALL:
-#
-# This script requires that you have first installed and loaded 'uberprompt.pl'
-# Uberprompt can be downloaded from:
-#
-# http://github.com/shabble/irssi-scripts/raw/master/prompt_info/uberprompt.pl
-#
-# and follow the instructions at the top of that file for installation.
-#
-# 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)
-#
-# NOTE: Ctrl-S may not work if you have software flow control configured for
-# your terminal. It may appear to freeze irssi entirely. If this happens, it can
-# be restored with Ctrl-Q, but you will be unable to use the Ctrl-S binding.
-# You can disable flow control by running the command `stty -ixon' in your
-# terminal, or setting `defflow off' in your ~/.screenrc if using GNU Screen.
-#
-# * Hitting enter selects a match and terminates search mode.
-#
-# * You can use ^G to exit search mode without selecting.
-#
-# * Any other ctrl- or meta- key binding will terminate search mode, leaving the
-# selected item in the input line.
-#
-# 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
+=pod
+
+=head1 NAME
+
+rl_history_search.pl
+
+=head1 DESCRIPTION
+
+Search within your typed history as you type (something like ctrl-R in bash or other
+readline-type applications.)
+
+=head1 INSTALLATION
+
+Copy into your F<~/.irssi/scripts/> directory and load with
+C</SCRIPT LOAD F<filename>>.
+
+This script requires that you have first installed and loaded F<uberprompt.pl>
+
+Uberprompt can be downloaded from:
+
+L<https://github.com/shabble/irssi-scripts/raw/master/prompt_info/uberprompt.pl>
+
+and follow the instructions at the top of that file or its README for installation.
+
+If uberprompt.pl is available, but not loaded, this script will make one
+attempt to load it before giving up. This eliminates the need to precisely
+arrange the startup order of your scripts.
+
+=head1 SETUP
+
+C</bind ^R /history_search_start>
+
+Where C<^R> is a key of your choice.
+
+=head1 USAGE
+
+Type C<ctrl-R> followed by your search string. The prompt line will show
+you the most recent command to match the string you've typed.
+
+B<Tip:> You can cycle through multiple matches with C<Ctrl-R> (to select older
+matches), and <Ctrl-S> (to select newer matches). Cycling off the end of the
+history list returns you to the other end again.
+
+B<NOTE:> C<Ctrl-S> may not work if you have software flow control configured for
+your terminal. It may appear to freeze irssi entirely. If this happens, it can
+be restored with C<Ctrl-Q>, but you will be unable to use the C<Ctrl-S> binding.
+You can disable flow control by running the command C<stty -ixon> in your
+terminal, or setting C<defflow off> in your F<~/.screenrc>if using GNU Screen.
+
+=head2 COMMANDS
+
+=over 4
+
+=item * C<Enter>
+
+Selects a match and terminates search mode.
+B<It will also run the currently selected command.>
+
+=item * C<Ctrl-G>
+
+Exits search mode without selecting.
+
+=item * C<E<lt>TABE<gt>>
+
+Opens a new split window, showing all matching completions. C<E<lt>EscE<gt>>
+will close the window again, as will any other action that exits history search
+mode. Possible candidates can be cycled through as normal using C<C-r> and
+C<<C-s>.
+
+=item * Any other ctrl- or meta- key
+
+This will terminate search mode, leaving the selected item in the input line.
+It will not run the command (Except for C<Ctrl-J> and C<Ctrl-M>, which are
+functionally equivalent to C<Enter>).
+
+=back
+
+=head1 AUTHORS
+
+Original script
+L<http://github.com/coekie/irssi-scripts/blob/master/history_search.pl>
+ Copyright E<copy> 2007 Wouter Coekaerts C<E<lt>coekie@irssi.orgE<gt>>
+
+
+Most of the other fancy stuff Copyright E<copy> 2011 Tom Feist
+C<E<lt>shabble+irssi@metavore.orgE<gt>>
+
+=head1 LICENCE
+
+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
+
+=head1 BUGS
+
+Yeah, probably.
+
+=head1 TODO
+
+=over 1
+
+=item * B<DONE> document tab behaviour
+
+=item * add keys (C-n/C-p) to scroll history list if necessary.
+
+=item * B<DONE> if list is bigger than split size, centre it so selected item is visible
+
+=item * I<INPROG> allow a mechanism to select by number from list
+
+=item * steal more of the code from ido_switcher to hilight match positions.
+
+=item * make flex matching optional (key or setting)
+
+=item * add some online help (? or C-h triggered, maybe?)
+
+=item * make temp_split stuff more generic (to be used by help, etc)
+
+=item * figure out why sometimes the split list doesn't update correctly (eg: no matches)
+
+=item * consider tracking history manually (via send command/send text)
+
+=over 4
+
+=item * Pro: we could timestamp it.
+
+=item * Con: Would involve catching up/down and all the other history selection mechanisms.
+
+=item * Compromise - tag history as it comes it (match it with data via sig handlers?)
+
+=back
+
+=item * Possibility of saving/restoring history over sessions?
+
+=back
+
+=cut
+
use strict;
+use warnings;
+
use Irssi;
use Irssi::TextUI;
use Data::Dumper;
-use vars qw($VERSION %IRSSI);
-$VERSION = '2.0';
-%IRSSI =
+our $VERSION = '2.7';
+our %IRSSI =
(
authors => 'Tom Feist, Wouter Coekaerts',
contact => 'shabble+irssi@metavore.org, shabble@#irssi/freenode',
name => 'rl_history_search',
description => 'Search within your typed history as you type'
- . ' (like ctrl-R in readline applications)',
+ . ' (like ctrl-R in readline applications)',
license => 'GPLv2 or later',
url => 'http://github.com/shabble/irssi-scripts/tree/master/history-search/',
- changed => '24/7/2010'
+ changed => '25/5/2011',
+ requires => [qw/uberprompt.pl/],
);
my $search_str = '';
my $search_active = 0;
+my $select_num_active = 0;
+my $num_buffer;
+
my @history_cache = ();
my @search_matches = ();
my $match_index = 0;
+# split info
+my $split_ref;
+my $original_win_ref;
+
+# formats
+my $list_format;
+
+my $use_flex_match = 1;
my $DEBUG_ENABLED = 0;
sub DEBUG () { $DEBUG_ENABLED }
@@ -81,13 +192,7 @@ sub DEBUG () { $DEBUG_ENABLED }
# check we have uberprompt 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 $retval;
+ return exists($Irssi::Script::{$_[0] . '::'});
}
if (not script_is_loaded('uberprompt')) {
@@ -99,21 +204,23 @@ if (not script_is_loaded('uberprompt')) {
Irssi::command("script load uberprompt.pl");
unless(script_is_loaded('uberprompt')) {
- load_uberprompt_failed("File does not exist");
+ load_uberprompt_failed({name => 'uberprompt'}, "File does not exist");
}
history_init();
} else {
- history_init();
+ history_init();
}
sub load_uberprompt_failed {
- Irssi::signal_remove('script error', 'load_prompt_failed');
+ my ($script, $error_msg) = @_;
+ Irssi::signal_remove('script error', 'load_uberprompt_failed');
+ my $script_name = $script->{name};
print "Script could not be loaded. Script cannot continue. "
- . "Check you have uberprompt.pl installed in your path and "
+ . "Check you have uberprompt.pl installed in your path and "
. "try again.";
- die "Script Load Failed: " . join(" ", @_);
+ die "Script '$script_name' Load Failed: $error_msg";
}
sub history_init {
@@ -124,6 +231,7 @@ sub history_init {
Irssi::signal_add ('setup changed' => \&setup_changed);
Irssi::signal_add_first('gui key pressed' => \&handle_keypress);
+ $list_format = Irssi::theme_register([ list_format => '$*' ]);
setup_changed();
}
@@ -131,29 +239,34 @@ sub setup_changed {
$DEBUG_ENABLED = Irssi::settings_get_bool('histsearch_debug');
}
+sub temp_split_active () {
+ return defined $split_ref;
+}
sub history_search {
$search_active = 1;
$search_str = '';
- $match_index = -1;
+ $match_index = 0;
- @history_cache = Irssi::active_win()->get_history_lines();
+ my $win = Irssi::active_win;
+ @history_cache = $win->get_history_lines();
@search_matches = ();
+ $original_win_ref = $win;
+
+ update_history_matches();
update_history_prompt();
}
sub history_exit {
$search_active = 0;
- Irssi::signal_emit('change prompt', '', 'UP_INNER');
+ close_temp_split();
+ _set_prompt('');
}
sub update_history_prompt {
my $col = scalar(@search_matches) ? '%g' : '%r';
- Irssi::signal_emit('change prompt',
- ' reverse-i-search: `' . $col . $search_str
- . '%n' . "'",
- 'UP_INNER');
+ _set_prompt(' reverse-i-search: `' . $col . $search_str . '%n' . "'");
}
sub update_history_matches {
@@ -161,11 +274,18 @@ sub update_history_matches {
$match_str = $search_str unless defined $match_str;
my %unique;
- my @matches = grep { m/\Q$match_str/i } @history_cache;
+ my @matches;
+
+ if ($use_flex_match) {
+ @matches = grep { flex_match($_) >= 0 } @history_cache;
+ } else {
+ @matches = grep { m/\Q$match_str/i } @history_cache;
+ }
@search_matches = ();
# uniquify the results, whilst maintaining order.
+ # TODO: duplicates should keep teh most recent one?
foreach my $m (@matches) {
unless (exists($unique{$m})) {
# add them in reverse order.
@@ -178,6 +298,80 @@ sub update_history_matches {
join(", ", @search_matches) if DEBUG;
}
+sub flex_match {
+ my ($obj) = @_;
+
+ my $pattern = $search_str;
+ my $source = $obj; #->{name};
+
+ #_debug("Flex match: $pattern / $source");
+
+ # default to matching everything if we don't have a pattern to compare
+ # against.
+
+ return 0 unless $pattern;
+
+ my @chars = split '', lc($pattern);
+ my $ret = -1;
+ my $first = 0;
+
+ my $lc_source = lc($source);
+
+ #$obj->{hilight_field} = 'name';
+
+ foreach my $char (@chars) {
+ my $pos = index($lc_source, $char, $ret);
+ if ($pos > -1) {
+
+ # store the beginning of the match
+ #$obj->{b_pos} = $pos unless $first;
+ $first = 1;
+
+ #_debug_print("matched: $char at $pos in $source");
+ $ret = $pos + 1;
+
+ } else {
+
+ #$obj->{b_pos} = $obj->{e_pos} = -1;
+ #_debug_print "Flex returning: -1";
+
+ return -1;
+ }
+ }
+
+ #_debug_print "Flex returning: $ret";
+
+ #store the end of the match.
+ #$obj->{e_pos} = $ret;
+
+ return $ret;
+}
+
+sub enter_select_num_mode {
+ # require that the list be shown.
+ return unless temp_split_active();
+ return if $select_num_active; # TODO: should we prevent restarting?
+
+ $num_buffer = 0;
+ _set_prompt("Num select: ");
+ $select_num_active = 1;
+}
+
+sub exit_select_num_mode {
+
+ $select_num_active = 0;
+ $num_buffer = 0;
+ update_history_prompt();
+}
+
+sub history_select_num {
+ if ($num_buffer > 0 && $num_buffer <= $#search_matches) {
+ $match_index = $num_buffer;
+ my $match = get_history_match();
+ _debug("Num select: got $match");
+ }
+}
+
sub get_history_match {
return $search_matches[$match_index];
}
@@ -211,65 +405,116 @@ sub handle_keypress {
return unless $search_active;
- if ($key == 10) { # enter
+ if ($select_num_active) {
+ if ($key >= 48 and $key <= 57) { # Number key
+
+ $num_buffer = ($num_buffer * 10) + $key - 48;
+ _set_prompt("Num select: $num_buffer");
+
+ } elsif ($key == 10) { # ENTER
+
+ history_select_num();
+ update_input();
+ exit_select_num_mode();
+ history_exit();
+
+ } else { # anything else quits.
+ exit_select_num_mode();
+ }
+ Irssi::signal_stop();
+ return;
+ }
+
+ if ($key == 6) { # Ctrl-F
+ enter_select_num_mode();
+ Irssi::signal_stop();
+ return;
+ }
+
+ if ($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 == 8) { # C-h
+ $original_win_ref->print("This would show help, "
+ . "if there was any. Coming soon!");
+ }
+
+ if ($key == 9) { # TAB
+ update_history_matches();
+ if (not temp_split_active()) {
+ create_temp_split() if @search_matches > 0;
+ } else {
+ print_current_matches();
+ }
+
+ Irssi::signal_stop();
+ return;
+ }
+ if ($key == 10) { # enter
print "selecting history and quitting" if DEBUG;
history_exit();
return;
}
- if ($key == 18) { # Ctrl-R
+ if ($key == 18) { # Ctrl-R
print "skipping to prev match" if DEBUG;
prev_match();
update_input();
update_history_prompt();
- Irssi::signal_stop(); # prevent the bind from being re-triggered.
+ print_current_matches();
+ Irssi::signal_stop(); # prevent the bind from being re-triggered.
return;
}
- if ($key == 19) { # Ctrl-S
+ if ($key == 19) { # Ctrl-S
print "skipping to next match" if DEBUG;
next_match();
update_input();
update_history_prompt();
+ print_current_matches();
Irssi::signal_stop();
return;
}
- if ($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);
+ # TODO: handle arrow-keys?
+ if ($key == 27) {
+ close_temp_split();
Irssi::signal_stop();
return;
}
- if ($key == 127) { # DEL
+ if ($key >= 32 and $key < 127) { # printable
+ $search_str .= chr($key);
- if (length $search_str) {
- $search_str = substr($search_str, 0, -1);
- print "Deleting char, now: $search_str" if DEBUG;
- }
update_history_matches();
update_history_prompt();
update_input();
+ print_current_matches();
Irssi::signal_stop();
return;
}
- # TODO: handle esc- sequences and arrow-keys?
-
- if ($key >= 32) { # printable
- $search_str .= chr($key);
+ 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();
update_input();
+ print_current_matches();
Irssi::signal_stop();
return;
@@ -279,3 +524,134 @@ sub handle_keypress {
history_exit();
#Irssi::signal_stop();
}
+
+sub create_temp_split {
+
+ Irssi::signal_add_first('window created', 'sig_win_created');
+ Irssi::command('window new split');
+ Irssi::signal_remove('window created', 'sig_win_created');
+}
+
+sub close_temp_split {
+
+ if (temp_split_active()) {
+ Irssi::command("window close $split_ref->{refnum}");
+ undef $split_ref;
+ }
+
+ # restore original window focus
+ if (Irssi::active_win()->{refnum} != $original_win_ref->{refnum}) {
+ $original_win_ref->set_active();
+ }
+}
+
+sub sig_win_created {
+ my ($win) = @_;
+ $split_ref = $win;
+ # printing directly from this handler causes irssi to segfault.
+ Irssi::timeout_add_once(10, \&print_current_matches, {});
+}
+
+sub print_current_matches {
+
+ return unless temp_split_active();
+
+ my $num_matches = scalar(@search_matches);
+ #return unless $num_matches > 0;
+
+ # for some woefully unobvious reason, we need to refetch
+ # the window reference in order for its attribute hash
+ # to be regenerated.
+ my $s_win = Irssi::window_find_refnum($split_ref->{refnum});
+
+ my $split_height = $s_win->{height};
+
+ $s_win->command("^scrollback clear");
+
+ # disable timestamps to ensure a clean window.
+ my $orig_ts_level = Irssi::parse_special('$timestamp_level');
+ $s_win->command("^set timestamp_level $orig_ts_level -CLIENTCRAP");
+
+
+ $original_win_ref->print("Num matches: $num_matches, height: $split_height")
+ if DEBUG;
+
+ # print header
+ # TODO: make this a format?
+ $s_win->print('%_Current history matches. Press <esc> to close.%_',
+ MSGLEVEL_CLIENTCRAP | MSGLEVEL_NEVER);
+
+ if ($num_matches == 0) {
+ $s_win->print('(No Matches)', MSGLEVEL_CLIENTCRAP | MSGLEVEL_NEVER);
+ return;
+ }
+ $split_height -= 2; # account for header line;
+
+ my $hist_entry = get_history_match();
+
+ my ($start, $end);
+
+ if ($num_matches > $split_height) {
+ # we have too many matches to fit in the window. decide on a new
+ # start and end point.
+
+ my $half_height = int ($split_height / 2);
+
+ # initial start pos is in the middle of the screen.
+ $start = $match_index >= $half_height
+ ? $match_index - $half_height
+ : 0;
+ # and ends with the max number of matches we can fit
+ $end = $start + $split_height > $num_matches - 1
+ ? $num_matches - 1
+ : $start + $split_height;
+
+ # readjust start if the screen isn't filled.
+ if ($end - $start < $split_height) {
+ $start = $end - $split_height;
+ }
+
+ _debug("sh: $split_height, hh: $half_height, "
+ . "mi: $match_index, start: $start, end: $end");
+ } else {
+ $start = 0;
+ $end = $#search_matches;
+ }
+
+ foreach my $i ($start..$end) {
+ my $j = $num_matches - $i;
+ my $entry = $search_matches[$i];
+
+ my $hilight = $hist_entry eq $entry
+ ? '%g'
+ : '';
+ $hilight = Irssi::parse_special($hilight);
+ my $str = sprintf("%s%-6d %s%%n", $hilight, $j, $entry);
+ $s_win->print($str, MSGLEVEL_CLIENTCRAP|MSGLEVEL_NEVER);
+ }
+
+ # restore timestamp settings.
+ $s_win->command("^set timestamp_level $orig_ts_level");
+}
+
+sub print_help {
+
+}
+
+sub _print_to_active {
+ my ($msg, @args) = @_;
+ my $str = sprintf($msg, @args);
+ $original_win_ref->print($str,MSGLEVEL_CLIENTCRAP | MSGLEVEL_NEVER);
+}
+
+sub _debug {
+ return unless DEBUG;
+ my ($msg, @args) = @_;
+ my $str = sprintf($msg, @args);
+ $original_win_ref->print($str, MSGLEVEL_CLIENTCRAP | MSGLEVEL_NEVER);
+}
+sub _set_prompt {
+ my ($str) = @_;
+ $str = ' ' . $str if length $str;
+ Irssi::signal_emit('change prompt', $str, 'UP_INNER');
+}