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This commit is contained in:
Matt Batchelder
181
lib/Twig/TransNode.php
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181
lib/Twig/TransNode.php
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<?php
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/*
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* Copyright (C) 2025 Xibo Signage Ltd
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*
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* Xibo - Digital Signage - https://xibosignage.com
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*
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* This file is part of Xibo.
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*
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* Xibo is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* any later version.
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*
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* Xibo is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with Xibo. If not, see <http://www.gnu.org/licenses/>.
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*/
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namespace Xibo\Twig;
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use Twig\Compiler;
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use Twig\Node\CheckToStringNode;
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use Twig\Node\Expression\AbstractExpression;
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use Twig\Node\Expression\ConstantExpression;
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use Twig\Node\Expression\FilterExpression;
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use Twig\Node\Expression\NameExpression;
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use Twig\Node\Expression\TempNameExpression;
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use Twig\Node\Node;
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use Twig\Node\PrintNode;
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/**
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* Twig Extension for supporting gettext
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*/
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class TransNode extends Node
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{
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public function __construct(
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?Node $body,
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?Node $plural = null,
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?AbstractExpression $count = null,
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?Node $notes = null,
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int $lineno = 0,
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$tag = null
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) {
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$nodes = ['body' => $body];
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if (null !== $count) {
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$nodes['count'] = $count;
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}
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if (null !== $plural) {
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$nodes['plural'] = $plural;
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}
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if (null !== $notes) {
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$nodes['notes'] = $notes;
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}
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parent::__construct($nodes, [], $lineno, $tag);
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}
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/**
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* Compiles the node to PHP.
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*
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* @param \Twig\Compiler $compiler A Twig_Compiler instance
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*/
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public function compile(Compiler $compiler)
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{
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$compiler->addDebugInfo($this);
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list($msg, $vars) = $this->compileString($this->getNode('body'));
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if ($this->hasNode('plural')) {
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list($msg1, $vars1) = $this->compileString($this->getNode('plural'));
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$vars = array_merge($vars, $vars1);
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}
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$function = $this->getTransFunction($this->hasNode('plural'));
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if ($this->hasNode('notes')) {
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$message = trim($this->getNode('notes')->getAttribute('data'));
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// line breaks are not allowed cause we want a single line comment
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$message = str_replace(["\n", "\r"], ' ', $message);
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$compiler->write("// notes: {$message}\n");
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}
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if ($vars) {
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// Add a hint for xgettext so that poedit goes not treat the variable substitution as PHP format
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// https://github.com/xibosignage/xibo/issues/1284
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$compiler
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->write('/* xgettext:no-php-format */')
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->write('echo strtr(' . $function . '(')
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->subcompile($msg);
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;
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if ($this->hasNode('plural')) {
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$compiler
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->raw(', ')
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->subcompile($msg1)
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->raw(', abs(')
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->subcompile($this->hasNode('count') ? $this->getNode('count') : null)
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->raw(')')
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;
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}
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$compiler->raw('), array(');
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foreach ($vars as $var) {
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if ('count' === $var->getAttribute('name')) {
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$compiler
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->string('%count%')
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->raw(' => abs(')
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->subcompile($this->hasNode('count') ? $this->getNode('count') : null)
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->raw('), ')
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;
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} else {
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$compiler
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->string('%'.$var->getAttribute('name').'%')
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->raw(' => ')
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->subcompile($var)
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->raw(', ')
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;
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}
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}
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$compiler->raw("));\n");
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} else {
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$compiler
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->write('echo '.$function.'(')
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->subcompile($msg)
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;
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if ($this->hasNode('plural')) {
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$compiler
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->raw(', ')
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->subcompile($msg1)
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->raw(', abs(')
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->subcompile($this->hasNode('count') ? $this->getNode('count') : null)
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->raw(')')
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;
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}
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$compiler->raw(");\n");
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}
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}
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/**
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* @param Node $body A Twig_Node instance
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*
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* @return array
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*/
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private function compileString(Node $body): array
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{
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if ($body instanceof NameExpression || $body instanceof ConstantExpression || $body instanceof TempNameExpression) {
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return [$body, []];
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}
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$vars = [];
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if (\count($body)) {
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$msg = '';
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foreach ($body as $node) {
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if ($node instanceof PrintNode) {
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$n = $node->getNode('expr');
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while ($n instanceof FilterExpression) {
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$n = $n->getNode('node');
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}
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while ($n instanceof CheckToStringNode) {
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$n = $n->getNode('expr');
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}
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$msg .= sprintf('%%%s%%', $n->getAttribute('name'));
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$vars[] = new NameExpression($n->getAttribute('name'), $n->getTemplateLine());
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} else {
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$msg .= $node->getAttribute('data');
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}
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}
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} else {
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$msg = $body->getAttribute('data');
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}
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return [new Node([new ConstantExpression(trim($msg), $body->getTemplateLine())]), $vars];
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}
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private function getTransFunction(bool $plural): string
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{
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return $plural ? 'n__' : '__';
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}
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}
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