#!/bin/sh
# Test Perl regex with context
. "${srcdir=.}/init.sh"; path_prepend_ ../src
require_pcre_

cat >in <<'EOF'
Preceded by 0 empty lines.

Preceded by 1 empty line.


Preceded by 2 empty lines.



Preceded by 3 empty lines.




Preceded by 4 empty lines.

EOF
test $? -eq 0 || framework_failure_

printf '%s\0' \
       'Preceded by 2 empty lines.' \
       'Preceded by 3 empty lines.' \
       'Preceded by 4 empty lines.' >exp || framework_failure_

fail=0

grep -Pzo '(?<=\n\n\n).*' in >out || fail_ 'grep -Pzo failed'
compare exp out || fail=1

Exit $fail