#! /bin/sh

# From arnold@f7.net  Sun Apr 22 20:15:25 2007

# Date: Thu, 19 Apr 2007 17:09:02 +0300

# From: Pekka Pessi <Pekka.Pessi@nokia.com>

# X-Face: #V(jdpv[lI!TNUU=2*oh:="#suS*ponXW"yr6G;~L}

#  :9||1pew85O,WjiYA"6C7bW^zt^+.{b#B{lEE+4$9lrXL(55g}dU>uZ\JfD\"IG#G{j`hZI;=DmT\H

#  pfDMyJ`i=:M;BM3R.`[>P^ER8+]i

# Subject: UTF-8 locale and \n in regexps

# To: bug-gawk@gnu.org

# Cc: Pekka.Pessi@nokia.com

# Message-id: <pvlkgoh2wx.fsf@nokia.com>

# MIME-version: 1.0

# Content-type: multipart/mixed; boundary="=-=-="

# 

# --=-=-=

# 

# Hello,

# 

# It looks like regexp with \n in [^] behaves badly if locale has

# an UTF-8 ctype.

# 

# It looks like if there is \n and an range without \n, like /\n[^x\n]foo/,

# and first \n ends an even-numbered line within the string, regexp

# does not match.

# 

# Please see the attached script for an demonstration.

# 

# --Pekka Pessi

# 

# 

# --=-=-=

# Content-Disposition: inline; filename=gawk-test

# 

#! /bin/sh

AWK=${AWK:-../gawk}

# April 2010: Remove UNKNOWN, causes spurious failures on some systems

for LC_ALL in C POSIX en_US.ISO-8859-1 en_US.UTF-8 #UNKNOWN 

do

export LC_ALL

cat <

line1

line2

line3

line4 

line5

line6

line7

line8

line9

EOF

$AWK --posix '

BEGIN { RS="\0"; }

{ 

  if (match($0, /\n[^2\n]*2/)) { got2=1; } else { print "no match 2"; }

  if (match($0, /\n[^3\n]*3/)) { got3=1; } else { print "no match 3"; }

  if (match($0, /\n[^4\n]*4/)) { got4=1; } else { print "no match 4"; }

  if (match($0, /\n[^5\t]*5/)) { got5=1; } else { print "no match 5"; }

  if (match($0, /\n[^6\n]*6/)) { got6=1; } else { print "no match 6"; }

  if (match($0, /\n[a-z]*7\n/)){ got7=1; } else { print "no match 7"; }

  if (match($0, /\n[^8\n]*8/)) { got8=1; } else { print "no match 8"; }

  if (match($0, /8.[^9\n]+9/)) { got9=1; } else { print "no match 9"; }

}

END { exit(!(got2 && got3 && got4 && got5 && got6 && got7 && got8 && got9)); }

' || { 

  echo LC_ALL=$LC_ALL FAILED

  exit 1

}

echo LC_ALL=$LC_ALL passed

done

# 

# --=-=-=--

#