#!/bin/sh
# initialize fpc's error message language from locale
# NB: English gets compiled in as default
#
# (c) 2023 Michael Shigorin <mike@altlinux.org>
# free to use on the same conditions as fpc itself

# do not reset what's set already
cfg="/etc/fpc.cfg"
[ -w "$cfg" ] || exit 0
! grep -q "^-Fr" "$cfg" || exit 0

# look at the locale...
lang="$LANG"
[ -n "$lang" ] || lang="$LC_CTYPE"
[ -n "$lang" ] || exit 0

msg=""
# might need update, see fpcbuild/fpcsrc/compiler/msg/ contents;
# some "matches" might be incorrect regarding the actual charset,
# please report/fix as appropriate
case "$lang" in
	ca_ES*)
		msg="ct"; break;;
	de*.UTF-8)
		msg="du"; break;;
	de*)	# LATIN-US DOS
		msg="d"; break;;
	da*)
		msg="da"; break;;
	en*)
		msg="e"; break;;
	es*)
		msg="es"; break;;
	fr*)	# "f" has CP850
		msg="fi"; break;;
	he*)	# "he" has CP1255
		msg="heu"; break;;
	id*)
		msg="id"; break;;
	it*)
		msg="iu"; break;;
	nl*)
		msg="n"; break;;
	pl*)	# "pl" has CP852
		msg="pli"; break;;
	pt*)	# "pt" has CP850
		msg="ptu"; break;;
	ru*|*RU*|be*|kk*|ky*|md*|tg*|tt*|uk*|uz*)
		msg="ru"; break;;
esac

# ...three!
[ -n "$msg" ] || exit 0
echo "Setting up $cfg for \`$msg' error messages"
sed -r -i "s,^#(-Fr.*error$msg.msg),\1," "$cfg" ||: