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<?php
declare(strict_types=1);
namespace Codeception\Util;
use function array_key_exists;
use function explode;
use function is_array;
use function preg_match_all;
use function sprintf;
use function str_replace;
/**
* Basic template engine used for generating initial Cept/Cest/Test files.
*/
class Template
{
private array $vars = [];
public function __construct(
private string $template,
private string $placeholderStart = '{{',
private string $placeholderEnd = '}}',
private ?string $encoderFunction = null,
) {
}
/**
* Replaces {{var}} string with provided value
*/
public function place(string $var, $val): self
{
$this->vars[$var] = $val;
return $this;
}
/**
* Sets all template vars
*/
public function setVars(array $vars): void
{
$this->vars = $vars;
}
public function getVar(string $name)
{
if (isset($this->vars[$name])) {
return $this->vars[$name];
}
return null;
}
/**
* Fills up template string with placed variables.
*/
public function produce(): string
{
$result = $this->template;
$regex = sprintf('~%s([\w\.]+)%s~m', $this->placeholderStart, $this->placeholderEnd);
$matched = preg_match_all($regex, $result, $matches, PREG_SET_ORDER);
if (!$matched) {
return $result;
}
foreach ($matches as $match) { // fill in placeholders
$placeholder = $match[1];
$value = $this->vars;
foreach (explode('.', trim($placeholder, '\'"')) as $segment) {
if (is_array($value) && array_key_exists($segment, $value)) {
$value = $value[$segment];
} else {
continue 2;
}
}
if ($this->encoderFunction !== null) {
$value = ($this->encoderFunction)($value);
} elseif (!is_string($value)) {
$value = (string)$value;
}
$result = str_replace($this->placeholderStart . $placeholder . $this->placeholderEnd, $value, $result);
}
return $result;
}
}