#!/bin/sh
# This would mistakenly print a line prior to grep-2.18.
. "${srcdir=.}/init.sh"; path_prepend_ ../src

require_en_utf8_locale_
require_compiled_in_MB_support

encode() { echo "$1" | tr ABC '\357\274\241'; }

encode ABC >exp1
encode aABC >exp2
encode ABCABC >exp3
encode _____________________ABCABC___ >exp4

fail=0

for LOC in en_US.UTF-8 $LOCALE_FR_UTF8; do
  for pat in A aA BCA; do
    for file in exp1 exp2 exp3 exp4; do
      for type in regex dfa fgrep; do
        case $type in
          dfa) opt= prefix= ;;
          fgrep) opt=-F prefix= ;;
          regex) opt= prefix='\(\)\1' ;;
        esac
        pattern=$prefix$(encode $pat)
        out=out-$type-$LOC
        LC_ALL=$LOC grep $opt "$pattern" $file >$out
        status=$?
        echo $status >$out.status
        if test $status -eq 0; then
          compare $file $out
        elif test $status -eq 1; then
          compare_dev_null_ /dev/null $out
        else
          test $status -eq 2
        fi || fail=1
        compare out-regex-$LOC.status $out.status || fail=1
      done
    done
  done
done

Exit $fail