# From arnold@f7.net  Wed Dec 15 11:32:46 2004

# Date: Tue, 14 Dec 2004 14:48:58 +0100

# From: Stepan Kasal <kasal@ucw.cz>

# Subject: gawk bug with RS="^..."

# To: bug-gawk@gnu.org

# Message-id: <20041214134858.GA15490@matsrv.math.cas.cz>

# 

# Hello,

#   I've noticed a problem with "^" in RS in gawk.  In most cases, it seems

# to match only the beginning of the file.  But in fact it matches the

# beginning of gawk's internal buffer.

# 

# Observe the following example:

# 

# $ gawk 'BEGIN{for(i=1;i<=100;i++) print "Axxxxxx"}' >file

# $ gawk 'BEGIN{RS="^A"} END{print NR}' file

# 2

# $ gawk 'BEGIN{RS="^Ax*\n"} END{print NR}' file

# 100

# $ head file | gawk 'BEGIN{RS="^Ax*\n"} END{print NR}'

# 10

# $

# 

# I think this calls for some clarification/fix.  But I don't have any

# fixed opinion how the solution should look like.

# 

# Have a nice day,

#         Stepan Kasal

# 

# PS: See also the discussion of the issue in the comp.lang.awk newsgroup.

BEGIN { RS = "^A" }

END { print NR }