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daux.io/libs/Tree/Content.php

163 Zeilen
3.7 KiB
PHP

<?php namespace Todaymade\Daux\Tree;
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class Content extends Entry
{
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/** @var string */
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protected $content;
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/** @var Content */
protected $previous;
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/** @var Content */
protected $next;
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/** @var array */
protected $attributes;
/** @var bool */
protected $manuallySetContent = false;
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/**
* @return string
*/
public function getContent()
{
if (!$this->content && !$this->manuallySetContent) {
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$this->content = file_get_contents($this->getPath());
}
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if ($this->attributes === null) {
$this->parseAttributes();
}
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return $this->content;
}
/**
* @param string $content
*/
public function setContent($content)
{
$this->manuallySetContent = true;
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$this->content = $content;
}
/**
* @return Content
*/
public function getPrevious()
{
return $this->previous;
}
/**
* @param Content $previous
*/
public function setPrevious($previous)
{
$this->previous = $previous;
}
/**
* @return Content
*/
public function getNext()
{
return $this->next;
}
/**
* @param Content $next
*/
public function setNext($next)
{
$this->next = $next;
}
public function isIndex()
{
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// At some point, it was recommended that
// an index page starts with an underscore.
// This is not mandatory anymore, both with
// and without underscore are supported.
return $this->name == 'index' || $this->name == '_index';
}
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public function getTitle()
{
if ($title = $this->getAttribute('title')) {
return $title;
}
return parent::getTitle();
}
protected function parseAttributes()
{
// We set an empty array first to
// avoid a loop when "parseAttributes"
// is called in "getContent"
$this->attributes = [];
$content = $this->getContent();
$sections = preg_split('/\s+-{3,}\s+/', $content, 2);
// Only do it if we have two sections
if (count($sections) != 2) {
return;
}
// Parse the different attributes
$lines = preg_split('/\n/', $sections[0]);
foreach ($lines as $line) {
$trimmed = trim($line);
if ($trimmed == '') continue; // skip empty lines
if ($trimmed[0] == '#') continue; // can be taken as comments
$re = "/^([-\\w]*)\\s*?:(.*)/";
if (!preg_match($re, $trimmed, $parts)) break; //Break as soon as we have a line that doesn't match
$key = strtolower(trim($parts[1]));
$value = trim($parts[2]);
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$this->attributes[$key] = $value;
}
// Only remove the content if we have at least one attribute
if (count($this->attributes) > 0) {
$this->setContent($sections[1]);
}
}
public function setAttributes(array $attributes)
{
$this->attributes = $attributes;
}
public function getAttribute($key = null)
{
if ($this->attributes === null) {
$this->parseAttributes();
}
if (is_null($key)) {
return $this->attributes;
}
if (!array_key_exists($key, $this->attributes)) {
return null;
}
return $this->attributes[$key];
}
public function dump()
{
$dump = parent::dump();
$dump['prev'] = $this->getPrevious() ? $this->getPrevious()->getUrl() : '';
$dump['next'] = $this->getNext() ? $this->getNext()->getUrl() : '';
return $dump;
}
}