<?php

function test_name($name)
{
    if (1 === preg_match("/^[A-Za-z][A-Za-z0-9]*(?:[_-][A-Za-z0-9]+)*\$/", $name)) {
        print "{$name} id OK\n";
    } else {
        print "{$name} failed\n";
    }
}
test_name("a_name");
test_name("a_name_more_and_more");
test_name("_a_name");
test_name("a-name-more-and-more");
test_name("-a_name");
test_name("a-name-more_and-more_some");

function test_sort($a, $b)
{
    global $cwd;
    $a = test_name($a);
    $b = test_name($b);
    $ta = strpos($a, "{$cwd}/tests") === 0 ? 1 + (strpos($a, "{$cwd}/tests/run-test") === 0 ? 1 : 0) : 0;
    $tb = strpos($b, "{$cwd}/tests") === 0 ? 1 + (strpos($b, "{$cwd}/tests/run-test") === 0 ? 1 : 0) : 0;
    if ($ta == $tb) {
        return strcmp($a, $b);
    } else {
        return $tb - $ta;
    }
}

        </script>
        <?php 
    } else {
        $is_examid = true;
    }
    if (empty($name)) {
        $nameErr = "名字未填写";
        ?>
        <script>
            alert("<?php 
        echo $nameErr;
        ?>
");
        </script>
        <?php 
    } elseif (!test_name($name)) {
        $nameErr = "姓名为2~3个汉字";
        ?>
        <script>
            alert("<?php 
        echo $nameErr;
        ?>
");
        </script>
        <?php 
    } else {
        $is_name = true;
    }
    if ($is_examid && $is_name) {
        $_SESSION['examid'] = $examid;
        $_SESSION['name'] = $name;