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	#!/bin/bash

	function get_file_encoding() {
	local filename=$1
	local output=$(file --brief $filename)
	case $output in
	ASCII)
	echo "unicode"
	return 0;;
	UTF-8)
	echo "unicode"
	return 0;;
	8859)
	echo "iso"
	return 0;;
	"*")
	echo "unknown";;
	esac
	return 1
	}

	function function_exists() {
	if [ $(type "$1" 2>&1 \| grep -c "$1"' is a function') -eq 1 ]; then
	return 0
	else
	return 1
	fi
	}

	function check_OS() {
	OS=$(uname \| tr "[A-Z]" "[a-z]")
	if [ "$OS" == "linux" ]; then return 0; fi
	OS="unknown"
	return 1
	}

	function check_OS_subtype() {
	OS_SUBTYPE="unknown"
	if [ -r /etc/gentoo-release ]; then OS_SUBTYPE="gentoo"; return 0; fi
	return 1
	}

	function check_AMC_version() {
	AMC_VERSION="unknown"
	which auto-multiple-choice > /dev/null 2>&1
	if [ $? -gt 0 ]; then
	AMC_VERSION="none"
	return 1
	fi

	case $OS in
	"linux")
	case $OS_SUBTYPE in
	"gentoo")
	AMC_VERSION=$(eix --xml auto-multiple-choice \| grep 'installed="1"' \| tr " " "\n" \| grep '^id' \| cut -d '"' -f 2)
	return 0;;
	esac
	esac
	return 1
	}

	# EOF