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 parseFilter(Buffer $buf)
{
if (!$buf->match('/:(.*)/A', $match)) {
return null;
}
$node = new Filter($match['pos'][0], $match[1]);
while (null !== ($next = $buf->peekLine())) {
$indent = '';
if ('' !== trim($next)) {
$indent = $this->indent->getString(1, $next);
if ('' === $indent) {
break;
}
if (strpos($next, $indent) !== 0) {
break;
}
}
$buf->nextLine();
$buf->eatChars(strlen($indent));
$str = $this->parseInterpolatedString($buf, false);
$node->addChild(new Statement($str->getPosition(), $str));
}
return $node;
}
