b-layer

## breakdown.awk
# 1. Take any string such as this regex \v<[1-9]\d{,2}\ze(\d{3})*>
# 2. Indicate separations with a delimiter char like underscore
# 3. Run awk like so:
#
#    awk -v RS='_' -f {thisfile} <<< '\v_<_[1-9]_\d_{,2}_\ze_(_\d_{3}_)_*_>'

# Result:

#  \v<[1-9]\d{,2}\ze(\d{3})*>
#  \v                         #
	# 1. Take any string such as this regex \v<[1-9]\d{,2}\ze(\d{3})*>
	# 2. Indicate separations with a delimiter char like underscore
	# 3. Run awk like so:
	#
	# awk -v RS='_' -f {thisfile} <<< '\v_<_[1-9]_\d_{,2}_\ze_(_\d_{3}_)_*_>'

	# Result:

	# \v<[1-9]\d{,2}\ze(\d{3})*>
	# \v #