#!/bin/sh -
#
#   Copyright (C) 2005 by Oliver Fromme, Munich, Germany  <olli@fromme.com>
#   All rights reserved.
#   Standard BSD 2-clause copyright license and disclaimer applies.
#
#   This tool creates a set of font files for FreeBSD's syscons.
#   These fonts are basically an ISO8859-15 subset that contains
#   additional line-drawing characters (so-called ACS characters)
#   that can be used by curses-based applications like sysinstall
#   or midnight-commander.
#
#   Simply run this script as root and follow the instructions.
#

set -e		# Exit immediately if anything bad happens.

PATH="/bin:/usr/bin:/sbin:/usr/sbin"	# Set a sane default path.

font_data()
{
	#
	#   WARNING -- Do not change the following table,
	#           unless you know EXACTLY what it means!
	#

	cat <<-"tac"

		l 218 194    upper left corner
		m 192 195    lower left corner
		k 191 128    upper right corner
		j 217 129    lower right corner
		t 195 217    tee pointing right
		u 180 130    tee pointing left
		v 193 218    tee pointing up
		w 194 219    tee pointing down
		q 196 213    horizontal line
		x 179 131    vertical line
		n 197 202    large plus or crossover
		`   4 132    diamond
		a 176 133    checker board (stipple)
		f   - 176    degree symbol
		g   - 177    plus/minus
		~   - 183    bullet
		,  27 134    arrow pointing left
		+  26 135    arrow pointing right
		.  25 136    arrow pointing down
		-  24 137    arrow pointing up
		h 177 138    board of squares
		i   - 167    lantern symbol
		0 219 221    solid square block
		y 243 139    less/equal
		z 242 140    greater/equal
		{ 227 141    Pi
		}   - 163    UK pound sign

	tac
}

FONT_DIR="/usr/share/syscons/fonts"

if [ ! -f iso15-8x16.fnt ]; then
	cd $FONT_DIR
fi

echo "Creating syscons font files ..."

for SIZE in 8 14 16; do

	CP437="cp437-8x$SIZE"
	ISO15="iso15-8x$SIZE"
	ACS15="iso-acs-8x$SIZE"

	DD_ARGS="if=$CP437 of=$ACS15 bs=$SIZE count=1 conv=notrunc"

	uudecode -p $CP437.fnt > $CP437
	uudecode -p $ISO15.fnt > $ACS15

	font_data |
	while read SYM SRC DST COMMENT; do
		if [ -n "$SRC" -a ".$SRC" != ".-" -a -n "$DST" ]; then
			dd $DD_ARGS skip=$SRC seek=$DST 2>/dev/null
		fi
	done

	uuencode $ACS15 $ACS15 > $ACS15.fnt
	echo "  -  $FONT_DIR/$ACS15.fnt"
	rm $CP437 $ACS15

done

echo "Done."

echo "Loading new fonts ..."
echo "     (To do this permanently, please modify /etc/rc.con.)"

for SIZE in 8 14 16; do
	vidcontrol -f iso-acs-8x$SIZE < /dev/ttyv0
done

echo "Done."

echo "Modifying cons25l1 termcap entry ..."
echo "     (To undo this, type 'make' in /usr/src/share/termcap.)"

TC_ENTRY=$(
	font_data |
	awk '
		BEGIN {
			printf "%s\n", "cons25l1|cons25-iso8859-1:\\"
			printf "\t%s", ":ac="
		}
	
		/[0-9]/{
			printf "%s\\%03o", $1, $3
		}

		END {
			printf "%s\n", ":\\"
			printf "\t%s\n", ":tc=cons25w:"
		}
	'
)

TC_DIR=/usr/share/misc

(
	sed '/^cons25l1|/,$d' $TC_DIR/termcap
	echo "$TC_ENTRY"
	sed '1,/^cons25l1|/d' $TC_DIR/termcap | sed '1,/:tc=/d'
) > $TC_DIR/termcap.new

mv -f $TC_DIR/termcap.new $TC_DIR/termcap

echo "Done."

echo "Rebuilding termcap.db file ..."

cd $TC_DIR
cap_mkdb termcap

echo "Done."

if [ $(egrep -c '^ttyv.*cons[0-9]+l1' /etc/ttys) -lt 1 ]; then
	echo ""
	echo "IMPORTANT:  You must edit your /etc/ttys file to specify the type ''cons25l1''"
	echo "as the terminal type for the ttyvX lines.  That's twenty-five lowercase-L one,"
	echo "*NOT* twenty-five eleven.  Type ''kill -HUP 1'' after changing /etc/ttys."
fi

echo ""
echo "NOTE:  You have to logout and login again for all changes to take effect."
echo ""

#--