#! /bin/sh

sary=../src/sary
mksary=../src/mksary

if grep --version | grep GNU >/dev/null 2>&1; then
    echo "do nothing" > /dev/null
else
    echo "This test requires GNU grep."
    exit 1
fi

cp words.txt tmp.words.txt
$mksary -q tmp.words.txt

first=`head -1 tmp.words.txt`
last=`tail -1  tmp.words.txt`
for pat in $first $last `perl sample.pl -20 tmp.words.txt` "Nonexistent"
do
    grep  -C2  $pat tmp.words.txt > tmp.grep
    $sary -C  $pat tmp.words.txt > tmp.sary
    grep  -A3 $pat tmp.words.txt > tmp.grep
    $sary -A3 $pat tmp.words.txt > tmp.sary
    grep  -B5 $pat tmp.words.txt > tmp.grep
    $sary -B5 $pat tmp.words.txt > tmp.sary
    cmp tmp.grep tmp.sary || exit 1
done

exit 0