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File: TransNode.php
<?php /** * Copyright (C) 2019 Xibo Signage Ltd * * Xibo - Digital Signage - http://www.xibo.org.uk * * This file is part of Xibo. * * Xibo is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as published by * the Free Software Foundation, either version 3 of the License, or * any later version. * * Xibo is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with Xibo. If not, see <http://www.gnu.org/licenses/>. */ namespace Xibo\Twig; use Twig\Compiler; use Twig\Node\CheckToStringNode; use Twig\Node\Expression\AbstractExpression; use Twig\Node\Expression\ConstantExpression; use Twig\Node\Expression\FilterExpression; use Twig\Node\Expression\NameExpression; use Twig\Node\Expression\TempNameExpression; use Twig\Node\Node; use Twig\Node\PrintNode; class TransNode extends Node { public function __construct(Node $body, Node $plural = null, AbstractExpression $count = null, Node $notes = null, $lineno, $tag = null) { $nodes = ['body' => $body]; if (null !== $count) { $nodes['count'] = $count; } if (null !== $plural) { $nodes['plural'] = $plural; } if (null !== $notes) { $nodes['notes'] = $notes; } parent::__construct($nodes, [], $lineno, $tag); } /** * Compiles the node to PHP. * * @param \Twig\Compiler $compiler A Twig_Compiler instance */ public function compile(Compiler $compiler) { $compiler->addDebugInfo($this); list($msg, $vars) = $this->compileString($this->getNode('body')); if ($this->hasNode('plural')) { list($msg1, $vars1) = $this->compileString($this->getNode('plural')); $vars = array_merge($vars, $vars1); } $function = $this->getTransFunction($this->hasNode('plural')); if ($this->hasNode('notes')) { $message = trim($this->getNode('notes')->getAttribute('data')); // line breaks are not allowed cause we want a single line comment $message = str_replace(["\n", "\r"], ' ', $message); $compiler->write("// notes: {$message}\n"); } if ($vars) { // Add a hint for xgettext so that poedit goes not treat the variable substitution as PHP format // https://github.com/xibosignage/xibo/issues/1284 $compiler ->write('/* xgettext:no-php-format */') ->write('echo strtr(' . $function . '(') ->subcompile($msg); ; if ($this->hasNode('plural')) { $compiler ->raw(', ') ->subcompile($msg1) ->raw(', abs(') ->subcompile($this->hasNode('count') ? $this->getNode('count') : null) ->raw(')') ; } $compiler->raw('), array('); foreach ($vars as $var) { if ('count' === $var->getAttribute('name')) { $compiler ->string('%count%') ->raw(' => abs(') ->subcompile($this->hasNode('count') ? $this->getNode('count') : null) ->raw('), ') ; } else { $compiler ->string('%'.$var->getAttribute('name').'%') ->raw(' => ') ->subcompile($var) ->raw(', ') ; } } $compiler->raw("));\n"); } else { $compiler ->write('echo '.$function.'(') ->subcompile($msg) ; if ($this->hasNode('plural')) { $compiler ->raw(', ') ->subcompile($msg1) ->raw(', abs(') ->subcompile($this->hasNode('count') ? $this->getNode('count') : null) ->raw(')') ; } $compiler->raw(");\n"); } } /** * @param Node $body A Twig_Node instance * * @return array */ private function compileString(Node $body): array { if ($body instanceof NameExpression || $body instanceof ConstantExpression || $body instanceof TempNameExpression) { return [$body, []]; } $vars = []; if (\count($body)) { $msg = ''; foreach ($body as $node) { if ($node instanceof PrintNode) { $n = $node->getNode('expr'); while ($n instanceof FilterExpression) { $n = $n->getNode('node'); } while ($n instanceof CheckToStringNode) { $n = $n->getNode('expr'); } $msg .= sprintf('%%%s%%', $n->getAttribute('name')); $vars[] = new NameExpression($n->getAttribute('name'), $n->getTemplateLine()); } else { $msg .= $node->getAttribute('data'); } } } else { $msg = $body->getAttribute('data'); } return [new Node([new ConstantExpression(trim($msg), $body->getTemplateLine())]), $vars]; } private function getTransFunction(bool $plural): string { return $plural ? 'n__' : '__'; } }