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#!/bin/sh
invert() {
# To invert an alg, replace R2 with RR, B' with B3 and then BBB
# and similar. Then reverse the string and triple every letter.
# It's a ugly hack, but it works.
alg="$(echo "$1" | tr -d ' ' | tr \' 3)"
echo "$alg" | sed -E 's/(.)(3)/\1\1\1/g' | \
sed -E 's/(.)(2)/\1\1/g' | sed 's/./&&&/g' | rev
}
gen() {
[ -e "trigger_$1.png" ] || cubeviz trigger "$1" > /dev/null 2>&1
}
printitem() {
alg="$1"
if [ -n "$alg" ]; then
inv="$(invert "$alg")"
echo "Working on alg $alg with inverse $inv" 1>&2
gen "$inv"
printf '<td style="font-size:16pt; text-align:center" '
printf 'width="20%%">%s</td>\n' "$alg"
printf '<td><a href="trigger_%s.png">\n' "$inv"
printf '<img src="trigger_%s.png" ' "$inv"
printf 'style="height:100px"></a></td>\n'
else
printf '<td width="20%%"><td width="30%%">\n'
fi
}
maketable() {
alg1="$(echo "$1" | sed 's/;.*$//' | tr -d '!')"
alg2="$(echo "$1" | sed 's/.*;//')"
printf '<table><tr>\n'
printitem "$alg1"
printitem "$alg2"
printf '</tr></table>\n'
}
while read -r line; do
algs="$(echo "$line" | grep '^!')"
if [ -z "$algs" ]; then
echo "$line"
else
maketable "$line"
fi
done
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