1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
  
     | 
    
      #!/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
 
     |