public function testSimple()
{
$buffer = new Buffer(" abc\n def\nghi");
$this->assertTrue($buffer->nextLine());
$this->assertSame(" abc", $buffer->getLine());
$this->assertTrue($buffer->match('~z*~A', $match));
$this->assertSame(array('', 'pos' => array(array('lineno' => 1, 'column' => 0))), $match);
$this->assertSame(" abc", $buffer->getLine());
$this->assertTrue($buffer->match('~(\\s*)(a)~A', $match));
$this->assertSame(array(' a', ' ', 'a', 'pos' => array(array('lineno' => 1, 'column' => 0), array('lineno' => 1, 'column' => 0), array('lineno' => 1, 'column' => 2))), $match);
$this->assertSame("bc", $buffer->getLine());
$this->assertTrue($buffer->nextLine());
$this->assertSame(" def", $buffer->getLine());
$this->assertSame(2, $buffer->getLineno());
$this->assertSame(' ', $buffer->peekChar());
$this->assertSame(" def", $buffer->getLine());
$this->assertSame(1, $buffer->getColumn());
$this->assertSame(' ', $buffer->eatChar());
$this->assertSame(" def", $buffer->getLine());
$this->assertSame(2, $buffer->getColumn());
$buffer->skipWs();
$this->assertSame('def', $buffer->getLine());
$this->assertSame(5, $buffer->getColumn());
$this->assertTrue($buffer->nextLine());
$this->assertSame('ghi', $buffer->getLine());
$this->assertSame(3, $buffer->getLineno());
$this->assertFalse($buffer->nextLine());
}
protected function syntaxErrorExpected(Buffer $buf, $expected)
{
$unexpected = $buf->peekChar();
if ($unexpected) {
$unexpected = "'{$unexpected}'";
} else {
$unexpected = 'end of line';
}
$msg = sprintf("Unexpected %s, expected %s", $unexpected, $expected);
return $this->syntaxError($buf, $msg);
}
