DivinerRenderer.php
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	<?php

	abstract class DivinerRenderer {

	private $publisher;
	private $atomStack = array();

	public function setPublisher($publisher) {
	$this->publisher = $publisher;
	return $this;
	}

	public function getPublisher() {
	return $this->publisher;
	}

	public function getConfig($key, $default = null) {
	return $this->getPublisher()->getConfig($key, $default);
	}

	protected function pushAtomStack(DivinerAtom $atom) {
	$this->atomStack[] = $atom;
	return $this;
	}

	protected function peekAtomStack() {
	return end($this->atomStack);
	}

	protected function popAtomStack() {
	array_pop($this->atomStack);
	return $this;
	}

	abstract public function renderAtom(DivinerAtom $atom);
	abstract public function renderAtomSummary(DivinerAtom $atom);
	abstract public function renderAtomIndex(array $refs);
	abstract public function getHrefForAtomRef(DivinerAtomRef $ref);

	}