From ee6133f3240285bad34f54e834c8467ced91a513 Mon Sep 17 00:00:00 2001
From: Wouter Coekaerts <coekie@irssi.org>
Date: Wed, 12 Nov 2008 19:04:17 +0000
Subject: [PATCH] Add script for /scrollback search

git-svn-id: file:///var/www/svn.irssi.org/SVN/irssi/trunk@4899 dbcabf3a-b0e7-0310-adc4-f8d773084564
---
 scripts/sb_search.pl | 142 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 142 insertions(+)
 create mode 100644 scripts/sb_search.pl

diff --git a/scripts/sb_search.pl b/scripts/sb_search.pl
new file mode 100644
index 00000000..43fc7b55
--- /dev/null
+++ b/scripts/sb_search.pl
@@ -0,0 +1,142 @@
+# sb_search.pl - search in your scrollback, scroll to a match
+# Do /HELP SCROLLBACK for help
+
+# Copyright (C) 2008  Wouter Coekaerts <wouter@coekaerts.be>, Emanuele Giaquinta <exg@irssi.org>
+#
+# 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 vars qw($VERSION %IRSSI);
+
+$VERSION = '1.0';
+%IRSSI = (
+	authors     => 'Wouter Coekaerts, Emanuele Giaquinta',
+	contact     => 'wouter@coekaerts.be, exg@irssi.org',
+	name        => 'sb_search',
+	description => 'search in your scrollback, scroll to a match',
+	license     => 'GPLv2 or later',
+	url         => 'http://wouter.coekaerts.be/irssi/',
+	changed     => '$LastChangedDate$',
+);
+
+sub cmd_help {
+	my ($args, $server, $witem) = @_;
+	if ($args =~ /^scrollback( search)? *$/i) {
+		Irssi::print ( <<SCRIPTHELP_EOF
+
+SCROLLBACK SEARCH [-level <level>] [-regexp] [-case] [-word] [-forward] [-all] [<pattern>]
+
+    -level: only search for lines with the given level. see /help levels
+    -regexp: the pattern is a regular expression
+    -case: search case sensitive
+    -word: pattern must match to full words
+    -forward: search forwards (default is backwards)
+    -all: search in all windows
+    <pattern>: text to search for
+SCRIPTHELP_EOF
+			,MSGLEVEL_CLIENTCRAP);
+	}
+}
+
+
+sub cmd_sb_search ($$$) {
+	my ($args, $server, $witem) = @_;
+	
+	### handle options
+	
+	my ($options, $pattern) = Irssi::command_parse_options('scrollback search', $args);
+
+	my $level;
+	if (defined($options->{level})) {
+		$level = $options->{level};
+		$level =~ y/,/ /;
+		$level = Irssi::combine_level(0, $level);
+	} else {
+		return if (!$pattern);
+		$level = MSGLEVEL_ALL;
+	}
+	
+	my $regex;
+	if ($pattern) {
+		my $flags = defined($options->{case}) ? '' : '(?i)';
+		my $b = defined($options->{word}) ? '\b' : '';
+		if (defined($options->{regexp})) {
+			$regex = qr/$flags$b$pattern$b/;
+		} else {
+			$regex = qr/$flags$b\Q$pattern\E$b/;
+		}
+	}
+	
+	my $forward = defined($options->{forward});
+	my $all = defined($options->{all});
+
+	### determine window(s) to search in
+	
+	my $current_win = ref $witem ? $witem->window() : Irssi::active_win();
+
+	my @windows;
+	if ($all) {
+		# cycle backward or forwards over all windows starting from current
+		# for example, searching backward through 5 windows, with window 3 active: search order is 3,2,1,5,4
+		# if we're searching forward: 3,4,5,1,2
+		my $order = $forward ? 1 : -1;
+		@windows = sort {$order * ($a->{refnum} cmp $b->{refnum})} Irssi::windows();
+		my @before_windows = grep {($_->{refnum} cmp $current_win->{refnum}) == $order} @windows;
+		my @after_windows = grep {($_->{refnum} cmp $current_win->{refnum}) == -$order} @windows;
+		@windows = ($current_win, @before_windows, @after_windows);
+	} else {
+		@windows = ($current_win);
+	}
+	
+	### do the search
+	
+	foreach my $win (@windows) {
+		my $view = $win->view;
+		
+		## determine line to start from
+		my $line;
+		if ($all && $win != $current_win) {
+			if ($forward) { # first line
+				$line = $view->get_lines;
+			} else { # last line
+				$line = $view->{startline};
+				while ($line->next) {
+					$line = $line->next
+				}
+			}
+		} else { # line after or before first visible line
+			$line = $forward ? $view->{startline}->next : $view->{startline}->prev;
+		}
+		
+		## loop over the lines
+		while (defined $line) {
+			my $line_level = $line->{info}{level};
+			if ($line_level & $level && $line->get_text(0) =~ $regex) {
+				$view->scroll_line($line);
+				if ($all) {
+					Irssi::command('window goto ' . $win->{refnum});
+				}
+				return;
+			}
+			$line = $forward ? $line->next : $line->prev;
+		}
+	}
+}
+
+Irssi::command_bind('scrollback search', \&cmd_sb_search);
+Irssi::command_bind_last('help', \&cmd_help);
+Irssi::command_set_options('scrollback search', '-level regexp case word forward all');