[9fans] awk

["Kenji Arisawa" <arisawa@ar.aichi-u.ac.jp>]

I tested some awk string functions to examine if
they can handle UFT-8 code well.
The bollow is my text code:
#!/bin/rc
#
#	Can awk function handle UTF strings ?
#
echo 'ベル:研究所' | awk '{
print $0	# ベル:研究所
print length($0)	# 6
print index($0,":")	# 3
print match($0,":.*"),RSTART, RLENGTH	# 7	7 4
print substr($0,3)	# :研究所
a=$0; sub(":.+", "alice", a); print a	# ベルalice
}'

Output is commented after `#' in each line.
Function `match' returns byte position that is inconsitent
with others. I believe this is a bug.

Kenji Arisawa