Improve installation and organization

5 files changed, 1203 insertions, 0 deletions

diff --git a/.urxvt/ext/clipboard b/.urxvt/ext/clipboard
new file mode 100644
index 0000000..05e1601
--- /dev/null
+++ b/.urxvt/ext/clipboard
@@ -0,0 +1,115 @@
+#! perl -w
+# Author:   Bert Muennich
+# Website:  http://www.github.com/muennich/urxvt-perls
+# License:  GPLv2
+
+# Use keyboard shortcuts to copy the selection to the clipboard and to paste
+# the clipboard contents (optionally escaping all special characters).
+# Requires xsel to be installed!
+
+# Usage: put the following lines in your .Xdefaults/.Xresources:
+#   URxvt.perl-ext-common: ...,clipboard
+#   URxvt.keysym.M-c:   perl:clipboard:copy
+#   URxvt.keysym.M-v:   perl:clipboard:paste
+#   URxvt.keysym.M-C-v: perl:clipboard:paste_escaped
+
+# Options:
+#   URxvt.clipboard.autocopy: If true, PRIMARY overwrites clipboard
+
+# You can also overwrite the system commands to use for copying/pasting.
+# The default ones are:
+#   URxvt.clipboard.copycmd:  xsel -ib
+#   URxvt.clipboard.pastecmd: xsel -ob
+# If you prefer xclip, then put these lines in your .Xdefaults/.Xresources:
+#   URxvt.clipboard.copycmd:  xclip -i -selection clipboard
+#   URxvt.clipboard.pastecmd: xclip -o -selection clipboard
+# On Mac OS X, put these lines in your .Xdefaults/.Xresources:
+#   URxvt.clipboard.copycmd:  pbcopy
+#   URxvt.clipboard.pastecmd: pbpaste
+
+# The use of the functions should be self-explanatory!
+
+use strict;
+
+sub on_start {
+	my ($self) = @_;
+
+	$self->{copy_cmd} = $self->x_resource('clipboard.copycmd') || 'xsel -ib';
+	$self->{paste_cmd} = $self->x_resource('clipboard.pastecmd') || 'xsel -ob';
+
+	if ($self->x_resource('clipboard.autocopy') eq 'true') {
+		$self->enable(sel_grab => \&sel_grab);
+	}
+
+	()
+}
+
+sub copy {
+	my ($self) = @_;
+
+	if (open(CLIPBOARD, "| $self->{copy_cmd}")) {
+		my $sel = $self->selection();
+		utf8::encode($sel);
+		print CLIPBOARD $sel;
+		close(CLIPBOARD);
+	} else {
+		print STDERR "error running '$self->{copy_cmd}': $!\n";
+	}
+
+	()
+}
+
+sub paste {
+	my ($self) = @_;
+
+	my $str = `$self->{paste_cmd}`;
+	if ($? == 0) {
+		$self->tt_paste($str);
+	} else {
+		print STDERR "error running '$self->{paste_cmd}': $!\n";
+	}
+
+	()
+}
+
+sub paste_escaped {
+	my ($self) = @_;
+
+	my $str = `$self->{paste_cmd}`;
+	if ($? == 0) {
+		$str =~ s/([!#\$%&\*\(\) ='"\\\|\[\]`~,<>\?])/\\\1/g;
+		$self->tt_paste($str);
+	} else {
+		print STDERR "error running '$self->{paste_cmd}': $!\n";
+	}
+
+	()
+}
+
+sub on_action {
+    my ($self, $action) = @_;
+
+    on_user_command($self, "clipboard:" . $action);
+}
+
+sub on_user_command {
+	my ($self, $cmd) = @_;
+
+	if ($cmd eq "clipboard:copy") {
+	   $self->copy;
+	} elsif ($cmd eq "clipboard:paste") {
+	   $self->paste;
+	} elsif ($cmd eq "clipboard:paste_escaped") {
+	   $self->paste_escaped;
+	}
+
+	()
+}
+
+sub sel_grab {
+	my ($self) = @_;
+
+	$self->copy;
+
+	()
+}
diff --git a/.urxvt/ext/fullscreen b/.urxvt/ext/fullscreen
new file mode 100644
index 0000000..ebed22f
--- /dev/null
+++ b/.urxvt/ext/fullscreen
@@ -0,0 +1,7 @@
+#!perl
+sub on_user_command {
+    my ($self, $cmd) = @_;
+    if ($cmd eq "fullscreen:switch") {
+        my $dummy = `wmctrl -r :ACTIVE: -b toggle,fullscreen` ;
+    }
+}
diff --git a/.urxvt/ext/keyboard-select b/.urxvt/ext/keyboard-select
new file mode 100644
index 0000000..3627360
--- /dev/null
+++ b/.urxvt/ext/keyboard-select
@@ -0,0 +1,586 @@
+#! perl -w
+# Author:   Bert Muennich
+# Website:  http://www.github.com/muennich/urxvt-perls
+# License:  GPLv2
+
+# Use keyboard shortcuts to select and copy text.
+
+# Usage: put the following lines in your .Xdefaults/.Xresources:
+#   URxvt.perl-ext-common: ...,keyboard-select
+#   URxvt.keysym.M-Escape: perl:keyboard-select:activate
+# The following line overwrites the default Meta-s binding and allows to
+# activate keyboard-select directly in backward search mode:
+#   URxvt.keysym.M-s: perl:keyboard-select:search
+
+# Use Meta-Escape to activate selection mode, then use the following keys:
+#   h/j/k/l:    Move cursor left/down/up/right (also with arrow keys)
+#   g/G/0/^/$/H/M/L/f/F/;/,/w/W/b/B/e/E: More vi-like cursor movement keys
+#   '/'/?:      Start forward/backward search
+#   n/N:        Repeat last search, N: in reverse direction
+#   Ctrl-f/b:   Scroll down/up one screen
+#   Ctrl-d/u:   Scroll down/up half a screen
+#   v/V/Ctrl-v: Toggle normal/linewise/blockwise selection
+#   y/Return:   Copy selection to primary buffer, Return: deactivate afterwards
+#   q/Escape:   Deactivate keyboard selection mode
+
+
+use strict;
+
+sub on_start{
+	my ($self) = @_;
+
+	$self->{patterns}{'w'} = qr/\w[^\w\s]|\W\w|\s\S/;
+	$self->{patterns}{'W'} = qr/\s\S/;
+	$self->{patterns}{'b'} = qr/.*(?:\w[^\w\s]|\W\w|\s\S)/;
+	$self->{patterns}{'B'} = qr/.*\s\S/;
+	$self->{patterns}{'e'} = qr/[^\w\s](?=\w)|\w(?=\W)|\S(?=\s|$)/;
+	$self->{patterns}{'E'} = qr/\S(?=\s|$)/;
+
+	()
+}
+
+
+sub on_action {
+    my ($self, $action) = @_;
+
+    on_user_command($self, "keyboard-select:" . $action);
+}
+
+
+sub on_user_command {
+	my ($self, $cmd) = @_;
+
+	if (not $self->{active}) {
+		if ($cmd eq 'keyboard-select:activate') {
+			activate($self);
+		} elsif ($cmd eq 'keyboard-select:search') {
+			activate($self, 1);
+		}
+	}
+
+	()
+}
+
+
+sub key_press {
+	my ($self, $event, $keysym, $char) = @_;
+	my $key = chr($keysym);
+
+	if (lc($key) eq 'c' && $event->{state} & urxvt::ControlMask) {
+		deactivate($self);
+	} elsif ($self->{search}) {
+		if ($keysym == 0xff1b) {
+			if ($self->{search_mode}) {
+				deactivate($self);
+			} else {
+				$self->{search} = '';
+				status_area($self);
+			}
+		} elsif ($keysym == 0xff08) {
+			$self->{search} = substr($self->{search}, 0, -1);
+			if (not $self->{search} and $self->{search_mode}) {
+				deactivate($self);
+			} else {
+				status_area($self);
+			}
+		} elsif ($keysym == 0xff0d) {
+			my $txt = substr($self->{search}, 1);
+			if ($txt) {
+				$self->{pattern} = ($txt =~ m/[[:upper:]]/) ? qr/\Q$txt\E/ :
+						qr/\Q$txt\E/i;
+			} elsif ($self->{pattern}) {
+				delete $self->{pattern};
+			}
+			$self->{search} = '';
+			$self->screen_cur($self->{srhcr}, $self->{srhcc});
+			if (not find_next($self)) {
+				if ($self->{search_mode}) {
+					deactivate($self);
+				} else {
+					status_area($self);
+				}
+			}
+		} elsif (length($char) > 0) {
+			$self->{search} .= $self->locale_decode($char);
+			my $txt = substr($self->{search}, 1);
+			if ($txt) {
+				$self->{pattern} = ($txt =~ m/[[:upper:]]/) ? qr/\Q$txt\E/ :
+				qr/\Q$txt\E/i;
+			} elsif ($self->{pattern}) {
+				delete $self->{pattern};
+			}
+			$self->screen_cur($self->{srhcr}, $self->{srhcc});
+			find_next($self);
+			status_area($self);
+		}
+	} elsif ($self->{move_to}) {
+		if ($keysym == 0xff1b) {
+			$self->{move_to} = 0;
+			status_area($self);
+		} elsif (length($char) > 0) {
+			$self->{move_to} = 0;
+			$self->{patterns}{'f-1'} = qr/^.*\Q$key\E/;
+			$self->{patterns}{'f+1'} = qr/^.+?\Q$key\E/;
+			move_to($self, ';');
+			status_area($self);
+		}
+	} elsif ($keysym == 0xff1b || lc($key) eq 'q') {
+		deactivate($self);
+	} elsif ($key eq 'y' || $keysym == 0xff0d) {
+		if ($self->{select}) {
+			if ($self->{select} eq 'b') {
+				$self->selection($self->{selection});
+				$self->selection_grab($event->{time});
+			} else {
+				my ($br, $bc, $er, $ec) = calc_span($self);
+				$ec = $self->line($er)->l if $self->{select} eq 'l';
+				$self->selection_beg($br, $bc);
+				$self->selection_end($er, $ec);
+				$self->selection_make($event->{time});
+			}
+			if ($key eq 'y') {
+				if ($self->{select} ne 'b') {
+					$self->selection_beg(1, 0);
+					$self->selection_end(1, 0);
+				}
+				$self->{select} = '';
+				status_area($self);
+				$self->want_refresh();
+			} else {
+				deactivate($self);
+			}
+		}
+	} elsif ($key eq 'V') {
+		toggle_select($self, 'l');
+	} elsif ($key eq 'v') {
+		if ($event->{state} & urxvt::ControlMask) {
+			toggle_select($self, 'b');
+		} else {
+			toggle_select($self, 'n');
+		}
+	} elsif ($key eq 'k' || $keysym == 0xff52) {
+		move_cursor($self, 'k');
+	} elsif ($key eq 'j' || $keysym == 0xff54) {
+		move_cursor($self, 'j');
+	} elsif ($key eq 'h' || $keysym == 0xff51) {
+		move_cursor($self, 'h');
+	} elsif ($key eq 'l' || $keysym == 0xff53) {
+		move_cursor($self, 'l');
+	} elsif ('gG0^$HML' =~ m/\Q$key\E/ ||
+			('fbdu' =~ m/\Q$key\E/ && $event->{state} & urxvt::ControlMask)) {
+		move_cursor($self, $key);
+	} elsif (lc($key) eq 'f') {
+		$self->{move_to} = 1;
+		$self->{move_dir} = $key eq 'F' ? -1 : 1;
+		status_area($self, $key);
+	} elsif (';,wWbBeE' =~ m/\Q$key\E/) {
+		move_to($self, $key);
+	} elsif ($key eq '/' || $key eq '?') {
+		$self->{search} = $key;
+		$self->{search_dir} = $key eq '?' ? -1 : 1;
+		($self->{srhcr}, $self->{srhcc}) = $self->screen_cur();
+		status_area($self);
+	} elsif (lc($key) eq 'n') {
+		find_next($self, $self->{search_dir} * ($key eq 'N' ? -1 : 1));
+	}
+
+	return 1;
+}
+
+
+sub move_cursor {
+	my ($self, $key) = @_;
+	my ($cr, $cc) = $self->screen_cur();
+	my $line = $self->line($cr);
+
+	if ($key eq 'k' && $line->beg > $self->top_row) {
+		$cr = $line->beg - 1;
+	} elsif ($key eq 'j' && $line->end < $self->nrow - 1) {
+		$cr = $line->end + 1;
+	} elsif ($key eq 'h' && $self->{offset} > 0) {
+		$self->{offset} = $line->offset_of($cr, $cc) - 1;
+		$self->{dollar} = 0;
+	} elsif ($key eq 'l' && $self->{offset} < $line->l - 1) {
+		++$self->{offset};
+	} elsif ($key eq 'f' || $key eq 'd') {
+		my $vs = $self->view_start() +
+				($key eq 'd' ? $self->nrow / 2 : $self->nrow - 1);
+		$vs = 0 if $vs > 0;
+		$cr += $vs - $self->view_start($vs);
+	} elsif ($key eq 'b' || $key eq 'u') {
+		my $vs = $self->view_start() -
+				($key eq 'u' ? $self->nrow / 2 : $self->nrow - 1);
+		$vs = $self->top_row if $vs < $self->top_row;
+		$cr += $vs - $self->view_start($vs);
+	} elsif ($key eq 'g') {
+		($cr, $self->{offset}) = ($self->top_row, 0);
+		$self->{dollar} = 0;
+	} elsif ($key eq 'G') {
+		($cr, $self->{offset}) = ($self->nrow - 1, 0);
+		$self->{dollar} = 0;
+	} elsif ($key eq '0') {
+		$self->{offset} = 0;
+		$self->{dollar} = 0;
+	} elsif ($key eq '^') {
+		my $ltxt = $self->special_decode($line->t);
+		while ($ltxt =~ s/^( *)\t/$1 . " " x (8 - length($1) % 8)/e) {}
+		$self->{offset} = $ltxt =~ m/^ +/ ? $+[0] : 0;
+		$self->{dollar} = 0;
+	} elsif ($key eq '$') {
+		my $co = $line->offset_of($cr, $cc);
+		$self->{dollar} = $co + 1;
+		$self->{offset} = $line->l - 1;
+	} elsif ($key eq 'H') {
+		$cr = $self->view_start();
+	} elsif ($key eq 'M') {
+		$cr = $self->view_start() + $self->nrow / 2;
+	} elsif ($key eq 'L') {
+		$cr = $self->view_start() + $self->nrow - 1;
+	}
+
+	$line = $self->line($cr);
+	$cc = $self->{dollar} || $self->{offset} >= $line->l ? $line->l - 1 :
+			$self->{offset};
+	$self->screen_cur($line->coord_of($cc));
+
+	status_area($self);
+	$self->want_refresh();
+	
+	()
+}
+
+
+sub move_to {
+	my ($self, $key) = @_;
+	my ($cr, $cc) = $self->screen_cur();
+	my $line = $self->line($cr);
+	my $offset = $self->{offset};
+	my ($dir, $pattern);
+	my ($wrap, $found) = (0, 0);
+
+	if ($key eq ';' || $key eq ',') {
+		$dir = $self->{move_dir} * ($key eq ',' ? -1 : 1);
+		$pattern = $self->{patterns}{sprintf('f%+d', $dir)};
+		return if not $pattern;
+	} else {
+		if (lc($key) eq 'b') {
+			$dir = -1;
+		} else {
+			$dir = 1;
+			++$offset if lc($key) eq 'e';
+		}
+		$pattern = $self->{patterns}{$key};
+		$wrap = 1;
+	}
+
+	if ($dir > 0) {
+		NEXTDOWN: my $text = substr($line->t, $offset);
+		if ($text =~ m/$pattern/) {
+			$offset += $+[0] - 1;
+			$found = 1;
+		} elsif ($wrap && $line->end + 1 < $self->nrow) {
+			$cr = $line->end + 1;
+			$line = $self->line($cr);
+			$offset = 0;
+			if (lc($key) eq 'e') {
+				goto NEXTDOWN;
+			} else {
+				$found = 1;
+			}
+		}
+	} elsif ($dir < 0) {
+		NEXTUP: my $text = substr($line->t, 0, $offset);
+		if ($text =~ m/$pattern/) {
+			$offset += $+[0] - length($text) - 1;
+			$found = 1;
+		} elsif ($wrap) {
+			if ($offset > 0) {
+				$offset = 0;
+				$found = 1;
+			} elsif ($line->beg > $self->top_row) {
+				$cr = $line->beg - 1;
+				$line = $self->line($cr);
+				$offset = $line->l;
+				goto NEXTUP;
+			}
+		}
+	}
+
+	if ($found) {
+		$self->{dollar} = 0;
+		$self->{offset} = $offset;
+		$self->screen_cur($line->coord_of($offset));
+		$self->want_refresh();
+	}
+
+	()
+}
+
+
+sub find_next {
+	my ($self, $dir) = @_;
+
+	return if not $self->{pattern};
+	$dir = $self->{search_dir} if not $dir;
+
+	my ($cr, $cc) = $self->screen_cur();
+	my $line = $self->line($cr);
+	my $offset = $line->offset_of($cr, $cc);
+	my $text;
+	my $found = 0;
+
+	++$offset if $dir > 0;
+
+	while (not $found) {
+		if ($dir > 0) {
+			$text = substr($line->t, $offset);
+			if ($text =~ m/$self->{pattern}/) {
+				$found = 1;
+				$offset += $-[0];
+			} else {
+				last if $line->end >= $self->nrow;
+				$line = $self->line($line->end + 1);
+				$offset = 0;
+			}
+		} else {
+			$text = substr($line->t, 0, $offset);
+			if ($text =~ m/$self->{pattern}/) {
+				$found = 1;
+				$offset = $-[0] while $text =~ m/$self->{pattern}/g;
+			} else {
+				last if $line->beg <= $self->top_row;
+				$line = $self->line($line->beg - 1);
+				$offset = $line->l;
+			}
+		}
+	}
+
+	if ($found) {
+		$self->{dollar} = 0;
+		$self->{offset} = $offset;
+		$self->screen_cur($line->coord_of($offset));
+		status_area($self);
+		$self->want_refresh();
+	}
+
+	return $found;
+}
+
+
+sub tt_write {
+	return 1;
+}
+
+
+sub refresh {
+	my ($self) = @_;
+	my $reverse_cursor = $self->{select} ne 'l';
+	my ($cr, $cc) = $self->screen_cur();
+
+	if ($self->{select}) {
+		my ($br, $bc, $er, $ec) = calc_span($self);
+
+		if ($self->{select} eq 'b') {
+			delete $self->{selection} if $self->{selection};
+			my $co = $self->line($cr)->offset_of($cr, $cc);
+			my $dollar = $self->{dollar} && $co >= $self->{dollar} - 1;
+
+			my $r = $br;
+			while ($r <= $er) {
+				my $line = $self->line($r);
+				if ($bc < $line->l) {
+					$ec = $line->l if $dollar;
+					$self->{selection} .= substr($line->t, $bc, $ec - $bc);
+					my ($br, $bc) = $line->coord_of($bc);
+					my ($er, $ec) = $line->coord_of($ec <= $line->l ? $ec : $line->l);
+					$self->scr_xor_span($br, $bc, $er, $ec, urxvt::RS_RVid);
+				} elsif ($r == $cr) {
+					$reverse_cursor = 0;
+				}
+				$self->{selection} .= "\n" if $line->end < $er;
+				$r = $line->end + 1;
+			}
+		} else {
+			$self->scr_xor_span($br, $bc, $er, $ec, urxvt::RS_RVid);
+		}
+
+		if ($reverse_cursor) {
+			# make the cursor visible again
+			$self->scr_xor_span($cr, $cc, $cr, $cc + 1, urxvt::RS_RVid);
+		}
+	}
+
+	# scroll the current cursor position into visible area
+	if ($cr < $self->view_start()) {
+		$self->view_start($cr);
+	} elsif ($cr >= $self->view_start() + $self->nrow) {
+		$self->view_start($cr - $self->nrow + 1);
+	}
+
+	()
+}
+
+
+sub activate {
+	my ($self, $search) = @_;
+
+	$self->{active} = 1;
+
+	$self->{select} = '';
+	$self->{dollar} = 0;
+	$self->{move_to} = 0;
+
+	if ($search) {
+		$self->{search} = '?';
+		$self->{search_dir} = -1;
+		$self->{search_mode} = 1;
+	} else {
+		$self->{search} = '';
+		$self->{search_mode} = 0;
+	}
+
+	($self->{oldcr}, $self->{oldcc}) = $self->screen_cur();
+	($self->{srhcr}, $self->{srhcc}) = $self->screen_cur();
+	$self->{old_view_start} = $self->view_start();
+	$self->{old_pty_ev_events} = $self->pty_ev_events(urxvt::EV_NONE);
+
+	my $line = $self->line($self->{oldcr});
+	$self->{offset} = $line->offset_of($self->{oldcr}, $self->{oldcc});
+
+	$self->selection_beg(1, 0);
+	$self->selection_end(1, 0);
+
+	$self->enable(
+		key_press     => \&key_press,
+		refresh_begin => \&refresh,
+		refresh_end   => \&refresh,
+		tt_write      => \&tt_write,
+	);
+
+	if ($self->{offset} >= $line->l) {
+		$self->{offset} = $line->l > 0 ? $line->l - 1 : 0;
+		$self->screen_cur($line->coord_of($self->{offset}));
+		$self->want_refresh();
+	}
+
+	$self->{overlay_len} = 0;
+	status_area($self);
+
+	()
+}
+
+
+sub deactivate {
+	my ($self) = @_;
+
+	$self->selection_beg(1, 0);
+	$self->selection_end(1, 0);
+
+	delete $self->{overlay} if $self->{overlay};
+	delete $self->{selection} if $self->{selection};
+
+	$self->disable("key_press", "refresh_begin", "refresh_end", "tt_write");
+	$self->screen_cur($self->{oldcr}, $self->{oldcc});
+	$self->view_start($self->{old_view_start});
+	$self->pty_ev_events($self->{old_pty_ev_events});
+
+	$self->want_refresh();
+
+	$self->{active} = 0;
+
+	()
+}
+
+
+sub status_area {
+	my ($self, $extra) = @_;
+	my ($stat, $stat_len);
+
+	if ($self->{search}) {
+		$stat_len = $self->ncol;
+		$stat = $self->{search} . ' ' x ($stat_len - length($self->{search}));
+	} else {
+		if ($self->{select}) {
+			$stat = "-V" . ($self->{select} ne 'n' ? uc($self->{select}) : "") . "- ";
+		}
+
+		if ($self->top_row == 0) {
+			$stat .= "All";
+		} elsif ($self->view_start() == $self->top_row) {
+			$stat .= "Top";
+		} elsif ($self->view_start() == 0) {
+			$stat .= "Bot";
+		} else {
+			$stat .= sprintf("%2d%%",
+					($self->top_row - $self->view_start) * 100 / $self->top_row);
+		}
+		
+		$stat = "$extra $stat" if $extra;
+		$stat_len = length($stat);
+	}
+
+	if (!$self->{overlay} || $self->{overlay_len} != $stat_len) {
+		delete $self->{overlay} if $self->{overlay};
+		$self->{overlay} = $self->overlay(-1, -1, $stat_len, 1,
+				urxvt::OVERLAY_RSTYLE, 0);
+		$self->{overlay_len} = $stat_len;
+	}
+
+	$self->{overlay}->set(0, 0, $self->special_encode($stat));
+	$self->{overlay}->show();
+
+	()
+}
+
+
+sub toggle_select {
+	my ($self, $mode) = @_;
+
+	if ($self->{select} eq $mode) {
+		$self->{select} = '';
+	} else {
+		if (not $self->{select}) {
+			($self->{ar}, $self->{ac}) = $self->screen_cur();
+		}
+		$self->{select} = $mode;
+	}
+
+	status_area($self);
+	$self->want_refresh();
+
+	()
+}
+
+
+sub calc_span {
+	my ($self) = @_;
+	my ($cr, $cc) = $self->screen_cur();
+	my ($br, $bc, $er, $ec);
+	
+	if ($self->{select} eq 'b') {
+		$br = $self->line($cr)->beg;
+		$bc = $self->line($cr)->offset_of($cr, $cc);
+		$er = $self->line($self->{ar})->beg;
+		$ec = $self->line($self->{ar})->offset_of($self->{ar}, $self->{ac});
+		($br, $er) = ($er, $br) if $br > $er;
+		($bc, $ec) = ($ec, $bc) if $bc > $ec;
+	} else {
+		if ($cr < $self->{ar}) {
+			($br, $bc, $er, $ec) = ($cr, $cc, $self->{ar}, $self->{ac});
+		} elsif ($cr > $self->{ar}) {
+			($br, $bc, $er, $ec) = ($self->{ar}, $self->{ac}, $cr, $cc);
+		} else {
+			($br, $er) = ($cr, $cr);
+			($bc, $ec) = $cc < $self->{ac} ? ($cc, $self->{ac}) : ($self->{ac}, $cc);
+		}
+	}
+
+	if ($self->{select} eq 'l') {
+		($br, $er) = ($self->line($br)->beg, $self->line($er)->end);
+		($bc, $ec) = (0, $self->ncol);
+	} else {
+		++$ec;
+	}
+
+	return ($br, $bc, $er, $ec);
+}
diff --git a/.urxvt/ext/rotate-colors b/.urxvt/ext/rotate-colors
new file mode 100644
index 0000000..0016d6a
--- /dev/null
+++ b/.urxvt/ext/rotate-colors
@@ -0,0 +1,92 @@
+#! /usr/bin/env perl -w
+# Author:  John Tyree
+# Website: http://github.com/johntyree/urxvt-perls/blob/master/rotate-colors
+# License: CCBYNC
+
+# Use keyboard shortcuts to load colors of the form *.colorN:XXXXXX from a file
+# This gives us "on demand" theme switching.
+
+# Usage: put the following lines in your .Xdefaults/.Xresources:
+#   URxvt.perl-ext-common: ...,rotate-colors
+#   URxvt.rotate-colors.files: ~/.Xresources,~/light.txt,~/dark.txt
+#   URxvt.keysym.M-C-n:   perl:rotate-colors:next
+#   URxvt.keysym.M-C-p:   perl:rotate-colors:prev
+
+use strict;
+
+
+sub on_start {
+    my ($self) = @_;
+    $self->{current_index} = -1;
+    my @arr = split(/,/, $self->x_resource('files') || '');
+    $self->{color_files} = \@arr;
+
+    ()
+}
+
+sub read_colors {
+    my $fn = shift;
+    open my $fin, $fn or print STDERR "Unable to open $fn for reading";
+    my %colors;
+
+    while (my $line = <$fin>) {
+        if ($line =~ /(\w+)\s*:\s*(#[0-9a-fA-F]+)/) {
+            $colors{$1} = $2;
+        }
+    }
+
+    return %colors
+}
+
+sub escape_seq {
+    my ($k, $v) = @_;
+    my $cmd = "";
+    if ($k =~ /^color(\d+)$/) {
+        $cmd = "4;$1;$v";
+    } elsif ($k =~ /^colorBD$/) {
+        $cmd = "5;0;$v";
+    } elsif ($k =~ /^colorUL$/) {
+        $cmd = "5;1;$v";
+    } elsif ($k =~ /^colorBL$/) {
+        $cmd = "5;2;$v";
+    } elsif ($k =~ /^colorRV$/) {
+        $cmd = "5;3;$v";
+    } elsif ($k =~ /^foreground$/) {
+        $cmd = "10;$v";
+    } elsif ($k =~ /^background$/) {
+        $cmd = "11;$v";
+    } elsif ($k =~ /^cursorColor$/) {
+        $cmd = "12;$v";
+    } elsif ($k =~ /^pointerColor$/) {
+        $cmd = "13;$v";
+    }
+
+    return '\033]'.$cmd.'\007'
+}
+
+sub build_cmd {
+    my $fn = shift;
+    my %colors = read_colors($fn);
+    print $fn."\n";
+    my $s =  join("", map {escape_seq($_, $colors{$_})} keys %colors);
+
+    return $s
+}
+
+sub on_user_command {
+    my ($self, $cmd) = @_;
+    my @fs = @{$self->{color_files}};
+    my $len = @fs;
+
+    if ($cmd eq "rotate-colors:next") {
+        my $idx = $self->{current_index}++;
+        my $fn = $fs[$idx % scalar(@fs)];
+        $self->cmd_parse(build_cmd($fn));
+    } elsif ($cmd eq "rotate-colors:prev") {
+        my $idx = $self->{current_index}--;
+        my $fn = $fs[$idx % scalar(@fs)];
+        $self->cmd_parse(build_cmd($fn));
+    }
+
+    ()
+}
diff --git a/.urxvt/ext/url-select b/.urxvt/ext/url-select
new file mode 100644
index 0000000..dc80496
--- /dev/null
+++ b/.urxvt/ext/url-select
@@ -0,0 +1,403 @@
+#! perl -w
+# Author:   Bert Muennich
+# Website:  http://www.github.com/muennich/urxvt-perls
+# Based on: http://www.jukie.net/~bart/blog/urxvt-url-yank
+# License:  GPLv2
+
+# Use keyboard shortcuts to select URLs.
+# This should be used as a replacement for the default matcher extension,
+# it also makes URLs clickable with the middle mouse button.
+
+# Usage: put the following lines in your .Xdefaults/.Xresources:
+#   URxvt.perl-ext-common: ...,url-select
+#   URxvt.keysym.M-u: perl:url-select:select_next
+
+# Use Meta-u to activate URL selection mode, then use the following keys:
+#   j/k:      Select next downward/upward URL (also with arrow keys)
+#   g/G:      Select first/last URL (also with home/end key)
+#   o/Return: Open selected URL in browser, Return: deactivate afterwards
+#   y:        Copy (yank) selected URL and deactivate selection mode
+#   q/Escape: Deactivate URL selection mode
+
+# Options:
+#   URxvt.url-select.autocopy:  If true, selected URLs are copied to PRIMARY
+#   URvxt.url-select.button:    Mouse button to click-open URLs (default: 2)
+#   URxvt.url-select.launcher:  Browser/command to open selected URL with
+#   URxvt.url-select.underline: If set to true, all URLs get underlined
+
+use strict;
+
+# The custom rendition bit to use for marking the cell as being underlined
+# by us so we can unset it again after a line has changed.
+use constant UNDERLINED => 1<<3; # arbitrarily chosen in hope of no collision
+
+sub on_start {
+	my ($self) = @_;
+
+	# read resource settings
+	if ($self->x_resource('url-select.launcher')) {
+		@{$self->{browser}} = split /\s+/, $self->x_resource('url-select.launcher');
+	} else {
+		@{$self->{browser}} = ('x-www-browser');
+	}
+	if ($self->x_resource('url-select.underline') eq 'true') {
+		$self->enable(line_update => \&line_update);
+	}
+	if ($self->x_resource('url-select.autocopy') eq 'true') {
+		$self->{autocopy} = 1;
+	}
+
+	$self->{state} = 0;
+
+	for my $mod (split '', $self->x_resource("url-select.button") ||
+	                       $self->x_resource("matcher.button") || 2) {
+		if ($mod =~ /^\d+$/) {
+			$self->{button} = $mod;
+		} elsif ($mod eq "C") {
+			$self->{state} |= urxvt::ControlMask;
+		} elsif ($mod eq "S") {
+			$self->{state} |= urxvt::ShiftMask;
+		} elsif ($mod eq "M") {
+			$self->{state} |= $self->ModMetaMask;
+		} elsif ($mod ne "-" && $mod ne " ") {
+			warn("invalid button/modifier in $self->{_name}<$self->{argv}[0]>: $mod\n");
+		}
+	}
+
+	if ($self->x_resource('matcher.pattern')) {
+		@{$self->{pattern}} = ($self->x_resource('matcher.pattern'));
+	} elsif ($self->x_resource('matcher.pattern.0')) {
+		my $current = 0;
+
+		while (defined (my $res = $self->x_resource("matcher.pattern.$current"))) {
+			$res = $self->locale_decode($res);
+			utf8::encode $res;
+			push @{$self->{pattern}}, qr($res)x;
+			$current++;
+		}
+	} else {
+		@{$self->{pattern}} = qr{
+			(?:https?://|ftp://|news://|mailto:|file://|\bwww\.)
+			[\w\-\@;\/?:&=%\$.+!*\x27,~#]*
+			(
+				\([\w\-\@;\/?:&=%\$.+!*\x27,~#]*\)   # Allow a pair of matched parentheses
+				|                                    #
+				[\w\-\@;\/?:&=%\$+*~]                # exclude some trailing characters (heuristic)
+			)+
+		}x;
+	}
+
+	()
+}
+
+
+sub line_update {
+	my ($self, $row) = @_;
+
+	my $line = $self->line($row);
+	my $text = $line->t;
+	my $rend = $line->r;
+
+	# clear all underlines that were set by us
+	for (@$rend) {
+		if (urxvt::GET_CUSTOM($_) & UNDERLINED) {
+			$_ = urxvt::SET_CUSTOM($_, urxvt::GET_CUSTOM($_) & ~UNDERLINED) &
+			     ~urxvt::RS_Uline;
+		}
+	}
+
+	for my $pattern (@{$self->{pattern}}) {
+		while ($text =~ /$pattern/g) {
+			my $url = $&;
+			my ($beg, $end) = ($-[0], $+[0] - 1);
+
+			for (@{$rend}[$beg .. $end]) {
+				unless ($_ & urxvt::RS_Uline) {
+					$_ = urxvt::SET_CUSTOM($_, urxvt::GET_CUSTOM($_) | UNDERLINED);
+					$_ |= urxvt::RS_Uline;
+				}
+			}
+		}
+	}
+
+	$line->r($rend);
+
+	()
+}
+
+sub on_action {
+    my ($self, $action) = @_;
+
+    on_user_command($self, "url-select:" . $action);
+}
+
+
+sub on_user_command {
+	my ($self, $cmd) = @_;
+
+	if ($cmd eq 'url-select:select_next') {
+		if (not $self->{active}) {
+			activate($self);
+		}
+		select_next($self, -1);
+	}
+
+	()
+}
+
+
+sub key_press {
+	my ($self, $event, $keysym) = @_;
+	my $char = chr($keysym);
+
+	if ($keysym == 0xff1b || lc($char) eq 'q' ||
+	    (lc($char) eq 'c' && $event->{state} & urxvt::ControlMask)) {
+		deactivate($self);
+	} elsif ($keysym == 0xff0d || $char eq 'o') {
+		$self->exec_async(@{$self->{browser}}, ${$self->{found}[$self->{n}]}[4]);
+		deactivate($self) unless $char eq 'o';
+	} elsif ($char eq 'y') {
+		my $found = $self->{found}[$self->{n}];
+		$self->selection_beg(${$found}[0], ${$found}[1]);
+		$self->selection_end(${$found}[2], ${$found}[3]);
+		$self->selection_make($event->{time});
+		$self->selection_beg(1, 0);
+		$self->selection_end(1, 0);
+		deactivate($self);
+	} elsif ($char eq 'k' || $keysym == 0xff52 || $keysym == 0xff51) {
+		select_next($self, -1, $event);
+	} elsif ($char eq 'j' || $keysym == 0xff54 || $keysym == 0xff53) {
+		select_next($self, 1, $event);
+	} elsif ($char eq 'g' || $keysym == 0xff50) {
+		$self->{row} = $self->top_row - 1;
+		delete $self->{found};
+		select_next($self, 1, $event);
+	} elsif ($char eq 'G' || $keysym == 0xff57) {
+		$self->{row} = $self->nrow;
+		delete $self->{found};
+		select_next($self, -1, $event);
+	}
+
+	return 1;
+}
+
+
+sub on_button_press {
+	my ($self, $event) = @_;
+
+	my $mask = $self->ModLevel3Mask | $self->ModMetaMask |
+	           urxvt::ShiftMask | urxvt::ControlMask;
+
+	if ($event->{button} == $self->{button} && ($event->{state} & $mask) == $self->{state}) {
+		my $col = $event->{col};
+		my $row = $event->{row};
+		my $line = $self->line($row);
+		my $text = $line->t;
+
+		for my $pattern (@{$self->{pattern}}) {
+			while ($text =~ /$pattern/g) {
+				my ($url, $beg, $end) = ($&, $-[0], $+[0]);
+				--$end if $url =~ s/["')]$//;
+
+				if ($col >= $beg && $col <= $end) {
+					$self->{button_pressed} = 1;
+					$self->{button_col} = $col;
+					$self->{button_row} = $row;
+					$self->{button_url} = $url;
+					return 1;
+				}
+			}
+		}
+	}
+
+	()
+}
+
+sub on_button_release {
+	my ($self, $event) = @_;
+
+	if ($self->{button_pressed} && $event->{button} == $self->{button}) {
+		my $col = $event->{col};
+		my $row = $event->{row};
+
+		$self->{button_pressed} = 0;
+
+		if ($col == $self->{button_col} && $row == $self->{button_row}) {
+			$self->exec_async(@{$self->{browser}}, $self->{button_url});
+			return 1;
+		}
+	}
+
+	()
+}
+
+
+sub select_next {
+	# $dir < 0: up, > 0: down
+	my ($self, $dir, $event) = @_;
+	my $row = $self->{row};
+
+	if (($dir < 0 && $self->{n} > 0) ||
+			($dir > 0 && $self->{n} < $#{ $self->{found} })) {
+		# another url on current line
+		$self->{n} += $dir;
+		hilight($self);
+		if ($self->{autocopy}) {
+			my $found = $self->{found}[$self->{n}];
+			$self->selection_beg(${$found}[0], ${$found}[1]);
+			$self->selection_end(${$found}[2], ${$found}[3]);
+			$self->selection_make($event->{time});
+			$self->selection_beg(1, 0);
+			$self->selection_end(1, 0);
+		}
+		return;
+	}
+
+	while (($dir < 0 && $row > $self->top_row) ||
+	       ($dir > 0 && $row < $self->nrow - 1)) {
+		my $line = $self->line($row);
+		$row = ($dir < 0 ? $line->beg : $line->end) + $dir;
+		$line = $self->line($row);
+		my $text = $line->t;
+
+		for my $pattern (@{$self->{pattern}}) {
+			if ($text =~ /$pattern/g) {
+				delete $self->{found};
+
+				do {
+					my ($beg, $end) = ($-[0], $+[0]);
+					push @{$self->{found}}, [$line->coord_of($beg),
+							$line->coord_of($end), substr($text, $beg, $end - $beg)];
+				} while ($text =~ /$pattern/g);
+
+				$self->{row} = $row;
+				$self->{n} = $dir < 0 ? $#{$self->{found}} : 0;
+				hilight($self);
+				if ($self->{autocopy}) {
+					my $found = $self->{found}[$self->{n}];
+					$self->selection_beg(${$found}[0], ${$found}[1]);
+					$self->selection_end(${$found}[2], ${$found}[3]);
+					$self->selection_make($event->{time});
+					$self->selection_beg(1, 0);
+					$self->selection_end(1, 0);
+				}
+				return;
+			}
+		}
+	}
+
+	deactivate($self) unless $self->{found};
+
+	()
+}
+
+
+sub hilight {
+	my ($self) = @_;
+
+	if ($self->{found}) {
+		if ($self->{row} < $self->view_start() ||
+				$self->{row} >= $self->view_start() + $self->nrow) {
+			# scroll selected url into visible area
+			my $top = $self->{row} - ($self->nrow >> 1);
+			$self->view_start($top < 0 ? $top : 0);
+		}
+
+		status_area($self);
+		$self->want_refresh();
+	}
+
+	()
+}
+
+
+sub refresh {
+	my ($self) = @_;
+
+	if ($self->{found}) {
+		$self->scr_xor_span(@{$self->{found}[$self->{n}]}[0 .. 3], urxvt::RS_RVid);
+	}
+
+	()
+}
+
+
+sub status_area {
+	my ($self) = @_;
+
+	my $row = $self->{row} < 0 ?
+			$self->{row} - $self->top_row : abs($self->top_row) + $self->{row};
+	my $text = sprintf("%d,%d ", $row + 1, $self->{n} + 1);
+
+	if ($self->top_row == 0) {
+		$text .= "All";
+	} elsif ($self->view_start() == $self->top_row) {
+		$text .= "Top";
+	} elsif ($self->view_start() == 0) {
+		$text .= "Bot";
+	} else {
+		$text .= sprintf("%2d%",
+				($self->top_row - $self->view_start) * 100 / $self->top_row);
+	}
+
+	my $text_len = length($text);
+
+	if ($self->{overlay_len} != $text_len) {
+		delete $self->{overlay} if $self->{overlay};
+		$self->{overlay} = $self->overlay(-1, -1, $text_len, 1,
+				urxvt::OVERLAY_RSTYLE, 0);
+		$self->{overlay_len} = $text_len;
+	}
+
+	$self->{overlay}->set(0, 0, $self->special_encode($text));
+	$self->{overlay}->show();
+
+	()
+}
+
+
+sub tt_write {
+	return 1;
+}
+
+
+sub activate {
+	my ($self) = @_;
+
+	$self->{active} = 1;
+
+	$self->{row} = $self->view_start() + $self->nrow;
+	$self->{n} = 0;
+	$self->{overlay_len} = 0;
+	$self->{button_pressed} = 0;
+
+	$self->{view_start} = $self->view_start();
+	$self->{pty_ev_events} = $self->pty_ev_events(urxvt::EV_NONE);
+
+	$self->enable(
+		key_press     => \&key_press,
+		refresh_begin => \&refresh,
+		refresh_end   => \&refresh,
+		tt_write      => \&tt_write,
+	);
+
+	()
+}
+
+
+sub deactivate {
+	my ($self) = @_;
+
+	$self->disable("key_press", "refresh_begin", "refresh_end", "tt_write");
+	$self->view_start($self->{view_start});
+	$self->pty_ev_events($self->{pty_ev_events});
+
+	delete $self->{overlay} if $self->{overlay};
+	delete $self->{found} if $self->{found};
+
+	$self->want_refresh();
+
+	$self->{active} = 0;
+
+	()
+}