以下新的 NewBladeCompiler 将@{ }}
用于接受所有 PHP 代码,如变量分配、类声明等。
例如@{ $variable = 0; }}
将被编译为<?php $variable=0; ?>
<?php
use Illuminate\View\Compilers\BladeCompiler;
class NewBladeCompiler extends BladeCompiler
{
/**
* Get the echo methods in the proper order for compilation.
*
* @return array
*/
function getEchoMethods()
{
$methods = [
'compileRawEchos' => strlen(stripcslashes($this->rawTags[0])),
'compileEscapedEchos' => strlen(stripcslashes($this->escapedTags[0])),
'compileRegularEchos' => strlen(stripcslashes($this->contentTags[0])),
'compilePhpEchos' => strlen(stripcslashes("@{"))
];
uksort($methods, function ($method1, $method2) use ($methods) {
// Ensure the longest tags are processed first
if($methods[$method1] > $methods[$method2])
{
return -1;
}
if($methods[$method1] < $methods[$method2])
{
return 1;
}
// Otherwise give preference to raw tags (assuming they've overridden)
if($method1 === 'compilePhpEchos')
{
return -1;
}
if($method2 === 'compilePhpEchos')
{
return 1;
}
if($method1 === 'compileRawEchos')
{
return -1;
}
if($method2 === 'compileRawEchos')
{
return 1;
}
if($method1 === 'compileEscapedEchos')
{
return -1;
}
if($method2 === 'compileEscapedEchos')
{
return 1;
}
});
return $methods;
}
function compilePhpEchos( $value )
{
$pattern = sprintf('/(@)?%s\s*(.+?)\s*%s(\r?\n)?/s', "@{", "}}");
$callback = function ($matches) {
$whitespace = empty($matches[3]) ? '' : $matches[3] . $matches[3];
return $matches[1] ? substr($matches[0], 1) : '<?php ' . $matches[2] . ' ?>' . $whitespace;
};
return preg_replace_callback($pattern, $callback, $value);
}
}
?>