Practice Chinese Numbers from 0 to 10

practice_chinese_numbers.sh

#! /bin/sh

# Practice Chinese Numbers from 0 to 10 (in Pinyin)
# Copyright (C) 2012 Matous J. Fialka, <http://mjf.cz/>
# Released under the terms of The MIT License
#
# Note:  requires UTF-8 ANSI-compatible terminal (XTerm)

hanzi[0]='零'
hanzi[1]='一'
hanzi[2]='二'
hanzi[3]='三'
hanzi[4]='四'
hanzi[5]='五'
hanzi[6]='六'
hanzi[7]='七'
hanzi[8]='八'
hanzi[9]='九'
hanzi[10]='十'

pinyin[0]='líng'
pinyin[1]='yī'
pinyin[2]='èr'
pinyin[3]='sān'
pinyin[4]='sì'
pinyin[5]='wǔ'
pinyin[6]='liù'
pinyin[7]='qī'
pinyin[8]='bā'
pinyin[9]='jiǔ'
pinyin[10]='shí'

apinyin[0]='ling2'
apinyin[1]='yi1'
apinyin[2]='er4'
apinyin[3]='san1'
apinyin[4]='si4'
apinyin[5]='wu3'
apinyin[6]='liu4'
apinyin[7]='qi1'
apinyin[8]='ba1'
apinyin[9]='jiu3'
apinyin[10]='shi2'

seqn()
{
	case $1 in
	1)
		printf -- '%dst\n' $1
		;;
	2)
		printf -- '%dnd\n' $1
		;;
	3)
		printf -- '%drd\n' $1
		;;
	4)
		printf -- '%dth\n' $1
		;;
	0|5)
		printf -- 'none\n'
		;;
	esac
}

l=-1
f=-1

while :
do
	r=0

	while :
	do
		t=$((RANDOM % 4 + 1))

		if [ $f -gt -1 ]
		then
			if [ $t -eq $f ]
			then
				continue
			fi
		fi

		f=$t

		break
	done

	while :
	do
		n=$((RANDOM % 11))

		if [ $l -gt -1 ]
		then
			if [ $n -eq $l ]
			then
				continue
			fi
		fi

		l=$n

		break
	done

	case $t in
	1)
		printf -- 'Type number for '
		printf -- '\033[1m% 2d\033[0m  (in Pīnyīn)... ' $n

		read answer
		e=$?

		if [ ${answer:-none} != ${apinyin[n]} ]
		then
			r=1
		fi
		;;
	2)
		printf -- 'Type number for '
		printf -- '\033[1m%s\033[0m  (in Pīnyīn)... ' ${hanzi[n]}

		read answer
		e=$?

		if [ ${answer:-none} != ${apinyin[n]} ]
		then
			r=1
		fi
		;;
	3)
		printf -- 'Type number for '
		printf -- '\033[1m%s\033[0m ... ' ${hanzi[n]}

		read answer
		e=$?

		if [ ${answer:-none} != $n ]
		then
			r=1
		fi
		;;
	4)
		printf -- 'Type number for '
		printf -- '\033[1m%s\033[0m ... ' ${pinyin[n]}

		read answer
		e=$?

		if [ ${answer:-none} != $n ]
		then
			r=1
		fi
		;;
	esac

	if [ $e -ne 0 ]
	then
		printf -- '\n'
	fi

	printf -- '\t\033[1m%d\033[0m' $n
	printf -- '\t\033[1m%s\033[0m' ${hanzi[n]}
	printf -- '\t\033[1m%s\033[0m' ${pinyin[n]}
	printf -- '\t(%s tone)\n' `
		a=${apinyin[n]}
		seqn ${a:$((${#a}-1))}
	`

	if [ ${answer:-none} = q -o ${answer:-none} = quit ]
	then
		break
	fi

	case ${answer:-none} in
	none)
		:
		;;
	*)
		if [ $r -ne 0 ]
		then
			printf -- 'Wrong answer, sorry.\n'
		fi
		;;
	esac

	printf -- '\n'
done

printf -- '\nGood bye (再见).\n'