Name.php

<?php
/*
    This file is part of Plop, a simple logging library for PHP.

    Copyright © 2010-2014 François Poirotte

    Plop is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    Plop is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with Plop.  If not, see <http://www.gnu.org/licenses/>.
*/

namespace Plop\Filter;

class Name implements \Plop\FilterInterface
{
    protected $name;

    protected $nlen;

    public function __construct($name = '')
    {
        $this->name = $name;
        $this->nlen = strlen($name);
    }

    public function filter(\Plop\RecordInterface $record)
    {
        if (!$this->nlen) {
            return true;
        }

        list(, , $name) = explode($record['name'], 3);
        if (strncmp($name, $this->name, $this->nlen)) {
            return false;
        }

        return (
            strlen($name) == $this->nlen ||
            $name[$this->nlen] == DIRECTORY_SEPARATOR
        );
    }
}