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From: Scott Robinson <scott@quadhome.com>
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Cc: 
Subject: bin/163062: csplit includes extra lines in inner context
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>Number:         163062
>Category:       bin
>Synopsis:       csplit includes extra lines in inner context
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Dec 04 15:50:10 UTC 2011
>Closed-Date:
>Last-Modified:
>Originator:     Scott Robinson
>Release:        8.1
>Organization:
>Environment:
FreeBSD hostname 8.1-RELEASE FreeBSD 8.1-RELEASE #0: Mon Jul 19 02:55:53 UTC 2010 root@almeida.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC i386
>Description:
csplit includes the lines of matching context lines for inner matches when using repeated matches.

I don't know if this is correct or not. The GNU version of csplit doesn't do it.

My discovery and investigation is documented: http://stackoverflow.com/questions/8373793/how-can-i-split-a-file-up-by-matching-lines-context/8374825
>How-To-Repeat:
#!/bin/sh

test -e

work="$(basename $0).$RANDOM"
mkdir $work

csplit -sk -f "$work/" - '/#/' '{9999}' <<EOF
First
#
Second
#
Third
EOF

if [ $(grep -c '#' $work/01) -eq 2 ]; then
  echo FAIL Repeat
else
  echo PASS Repeat
fi

rm $work/*

csplit -sk -f "$work/" - '/#/' '/#/' <<EOF
First
#
Second
#
Third
EOF

if [ $(grep -c '#' $work/01) -eq 2 ]; then
  echo FAIL Exact
else
  echo PASS Exact
fi

uname -a
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: