ProfitPress Mega CDROM2 …eeware (MSDOS)(1992)(Eng)/ProfitPress-MegaCDROM2.B6I/TEXT/UTILITY/AWK320.ZIP/PAT.AWK

Text File | 1990-02-07 | 115 b | 4 lines

# verify that a record follows a pattern

NF==1{ if ( $1 ~ /^ab(ab|ba)*abba$/ ) print "yes" ; else print "no" }