#!/bin/sh
#
# rfc3066.sh - convert the ISO639-2 language table to a RFC 3066 table
#
# Copyright (C) 2005 Jean-Yves Lefort
# All rights reserved.
#
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# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
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#    notice, this list of conditions and the following disclaimer in the
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#    may be used to endorse or promote products derived from this software
#    without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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# POSSIBILITY OF SUCH DAMAGE.

IFS="|"
uniq | while read alpha3_bibliographic alpha3_terminologic alpha2 english_name french_name; do
    # use rules from RFC 3066 2.3
    if [ -n "$alpha2" ]; then
	tag="$alpha2"
    elif [ -n "$alpha3_terminologic" ]; then
	tag="$alpha3_terminologic"
    elif [ -n "$alpha3_bibliographic" ]; then
	tag="$alpha3_bibliographic"
    else
	tag=""
    fi

    [ -n "$tag" ] && echo "$tag|$english_name|$french_name"
done