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<?php |
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/** |
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* This file is part of the Cecil/Cecil package. |
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* |
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* Copyright (c) Arnaud Ligny <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Cecil\Step; |
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use Cecil\Builder; |
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use Cecil\Collection\Page\Page; |
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use Cecil\Collection\Page\PrefixSuffix; |
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use Cecil\Exception\Exception; |
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use Cecil\Renderer\Layout; |
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use Cecil\Renderer\Site; |
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use Cecil\Renderer\Twig; |
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use Cecil\Util; |
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/** |
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* Pages rendering. |
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*/ |
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class PagesRender extends AbstractStep |
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{ |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getName(): string |
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{ |
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return 'Rendering pages'; |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* @throws Exception |
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*/ |
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public function init($options) |
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{ |
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if (!is_dir($this->config->getLayoutsPath()) && !$this->config->hasTheme()) { |
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$message = sprintf( |
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"'%s' is not a valid layouts directory", |
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$this->config->getLayoutsPath() |
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); |
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$this->builder->getLogger()->debug($message); |
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} |
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$this->canProcess = true; |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* @throws Exception |
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*/ |
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public function process() |
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{ |
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// prepares renderer |
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$this->builder->setRenderer(new Twig($this->builder, $this->getAllLayoutsPaths())); |
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// adds global variables |
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$this->addGlobals(); |
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// collects published pages |
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/** @var Page $page */ |
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$filteredPages = $this->builder->getPages()->filter(function (Page $page) { |
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return !empty($page->getVariable('published')); |
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}); |
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$max = count($filteredPages); |
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// renders each page |
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$count = 0; |
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/** @var Page $page */ |
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foreach ($filteredPages as $page) { |
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$count++; |
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$rendered = []; |
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// i18n |
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$pageLang = $page->getVariable('language'); |
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$locale = $this->config->getLanguageProperty('locale', $pageLang); |
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// the PHP Intl extension is needed to use localized date |
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if (extension_loaded('intl')) { |
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\Locale::setDefault($locale); |
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} |
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// the PHP Gettext extension is needed to use translation |
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if (extension_loaded('gettext')) { |
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$localePath = realpath(Util::joinFile($this->config->getSourceDir(), 'locale')); |
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$domain = 'messages'; |
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putenv("LC_ALL=$locale"); |
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putenv("LANGUAGE=$locale"); |
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setlocale(LC_ALL, "$locale.UTF-8"); |
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bindtextdomain($domain, $localePath); |
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} |
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// global site variables |
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$this->builder->getRenderer()->addGlobal('site', new Site($this->builder, $pageLang)); |
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// get Page's output formats |
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$formats = $this->getOutputFormats($page); |
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$page->setVariable('output', $formats); |
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// excluded format(s)? |
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foreach ($formats as $key => $format) { |
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if ($exclude = $this->config->getOutputFormatProperty($format, 'exclude')) { |
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// ie: |
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// formats: |
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// atom: |
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// [...] |
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// exclude: [paginated] |
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if (!is_array($exclude)) { |
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$exclude = [$exclude]; |
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} |
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foreach ($exclude as $variable) { |
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if ($page->hasVariable($variable)) { |
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unset($formats[$key]); |
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} |
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} |
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} |
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} |
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// get and set alternates links |
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$page->setVariable('alternates', $this->getAlternates($formats)); |
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// renders each output format |
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foreach ($formats as $format) { |
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// search for the template |
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$layout = Layout::finder($page, $format, $this->config); |
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// renders with Twig |
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try { |
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$deprecations = []; |
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set_error_handler(function ($type, $msg) use (&$deprecations) { |
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if (E_USER_DEPRECATED === $type) { |
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$deprecations[] = $msg; |
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} |
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}); |
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$output = $this->builder->getRenderer()->render($layout['file'], ['page' => $page]); |
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foreach ($deprecations as $value) { |
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$this->builder->getLogger()->warning($value); |
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} |
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$output = $this->postProcessOutput($output, $page, $format); |
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$rendered[$format]['output'] = $output; |
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$rendered[$format]['template']['scope'] = $layout['scope']; |
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$rendered[$format]['template']['file'] = $layout['file']; |
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// profiler |
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if (getenv('CECIL_DEBUG') == 'true') { |
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$dumper = new \Twig\Profiler\Dumper\HtmlDumper(); |
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file_put_contents( |
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Util::joinFile($this->config->getOutputPath(), '_debug_twig_profile.html'), |
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$dumper->dump($this->builder->getRenderer()->profile) |
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); |
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} |
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} catch (\Twig\Error\Error $e) { |
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throw new Exception(sprintf( |
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'Template "%s"%s (for page "%s"): %s', |
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$e->getSourceContext()->getPath(), |
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$e->getTemplateLine() >= 0 ? sprintf(' line %s', $e->getTemplateLine()) : '', |
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$page->getId(), |
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$e->getMessage() |
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)); |
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} |
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} |
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$page->setVariable('rendered', $rendered); |
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$this->builder->getPages()->replace($page->getId(), $page); |
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$templates = array_column($rendered, 'template'); |
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$message = sprintf( |
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'%s [%s]', |
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($page->getId() ?: 'index'), |
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Util::combineArrayToString($templates, 'scope', 'file') |
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); |
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$this->builder->getLogger()->info($message, ['progress' => [$count, $max]]); |
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} |
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} |
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/** |
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* Returns an array of layouts directories. |
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* |
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* @return array |
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*/ |
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protected function getAllLayoutsPaths(): array |
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{ |
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$paths = []; |
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// layouts/ |
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if (is_dir($this->config->getLayoutsPath())) { |
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$paths[] = $this->config->getLayoutsPath(); |
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} |
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// <theme>/layouts/ |
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if ($this->config->hasTheme()) { |
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$themes = $this->config->getTheme(); |
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foreach ($themes as $theme) { |
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$paths[] = $this->config->getThemeDirPath($theme); |
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} |
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} |
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// resources/layouts/ |
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if (is_dir($this->config->getInternalLayoutsPath())) { |
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$paths[] = $this->config->getInternalLayoutsPath(); |
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} |
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return $paths; |
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} |
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/** |
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* Adds global variables. |
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*/ |
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protected function addGlobals() |
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{ |
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$this->builder->getRenderer()->addGlobal('cecil', [ |
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'url' => sprintf('https://cecil.app/#%s', Builder::getVersion()), |
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'version' => Builder::getVersion(), |
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'poweredby' => sprintf('Cecil v%s', Builder::getVersion()), |
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]); |
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} |
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/** |
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* Get available output formats. |
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* |
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* @param Page $page |
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* |
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* @return array |
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*/ |
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protected function getOutputFormats(Page $page): array |
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{ |
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// Get available output formats for the page type. |
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// ie: |
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// page: [html, json] |
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$formats = $this->config->get('output.pagetypeformats.'.$page->getType()); |
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if (empty($formats)) { |
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throw new Exception('Configuration key "pagetypeformats" can\'t be empty.'); |
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} |
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if (!\is_array($formats)) { |
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$formats = [$formats]; |
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} |
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// Get page output format(s). |
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// ie: |
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// output: txt |
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if ($page->getVariable('output')) { |
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$formats = $page->getVariable('output'); |
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if (!\is_array($formats)) { |
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$formats = [$formats]; |
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} |
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} |
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return $formats; |
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} |
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/** |
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* Get alternates. |
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* |
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* @param array $formats |
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* |
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* @return array |
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*/ |
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protected function getAlternates(array $formats): array |
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{ |
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$alternates = []; |
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if (count($formats) > 1 || in_array('html', $formats)) { |
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foreach ($formats as $format) { |
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$format == 'html' ? $rel = 'canonical' : $rel = 'alternate'; |
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$alternates[] = [ |
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'rel' => $rel, |
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'type' => $this->config->getOutputFormatProperty($format, 'mediatype'), |
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'title' => strtoupper($format), |
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'format' => $format, |
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]; |
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} |
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} |
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return $alternates; |
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} |
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/** |
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* Apply post rendering on output. |
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* |
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* @param string $rendered |
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* @param Page $page |
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* @param string $format |
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* |
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* @return string |
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*/ |
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private function postProcessOutput(string $rendered, Page $page, string $format): string |
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{ |
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switch ($format) { |
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case 'html': |
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// add generator meta tag |
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if (!preg_match('/<meta name="generator".*/i', $rendered)) { |
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$meta = \sprintf('<meta name="generator" content="Cecil %s" />', Builder::getVersion()); |
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$rendered = preg_replace_callback('/([[:blank:]]+)(<\/head>)/i', function ($matches) use ($meta) { |
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return str_repeat($matches[1], 2).$meta."\n".$matches[1].$matches[2]; |
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}, $rendered); |
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} |
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// replace excerpt or break tag by HTML anchor |
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// https://regex101.com/r/Xl7d5I/3 |
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$pattern = '(.*)(<!--[[:blank:]]?(excerpt|break)[[:blank:]]?-->)(.*)'; |
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$replacement = '$1<span id="more"></span>$4'; |
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$rendered = preg_replace('/'.$pattern.'/is', $replacement, $rendered); |
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} |
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// replace internal link to *.md files with the right URL |
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// https://regex101.com/r/dZ02zO/5 |
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$replace = 'href="../%s/%s"'; |
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if (empty($page->getFolder())) { |
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$replace = 'href="%s/%s"'; |
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} |
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$rendered = preg_replace_callback( |
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'/href="([A-Za-z0-9_\.\-\/]+)\.md(\#[A-Za-z0-9\-]+)?"/is', |
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function ($matches) use ($replace) { |
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return \sprintf($replace, Page::slugify(PrefixSuffix::sub($matches[1])), $matches[2] ?? ''); |
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}, |
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$rendered |
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); |
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return $rendered; |
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} |
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} |
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Cecilapp /
Cecil
