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# Test that we have metadata about what options this system's ed(1) supports,
# and try to create it if not
(
# Create a directory to hold metadata about ed
ecd=$HOME/.cache/ed
if ! [ -d "$ecd" ] ; then
mkdir -p -- "$ecd" || exit
fi
# Write ed(1)'s --help output to a file, even if it's empty
if ! [ -f "$ecd"/help ] ; then
ed --help </dev/null >"$ecd"/help 2>/dev/null || exit
# Iterate through some useful options and create files to show they're
# available
set -- verbose
for opt ; do
grep -q -- --"$opt" "$ecd"/help || continue
touch -- "$ecd"/"$opt" || exit
done
fi
)
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