Declarative Blade Extensions

after.blade.php

@usingPerRow(4)

@foreach ($images as $image)
	@incrementPerRow()

	@whenStartOfRow
		<tr>
	@closeStartOfRow

	<td><img src="{{ $image->url }}"></td>

	@whenEndOfRow
		</tr>
	@closeEndOfRow
@endforeach

before.blade.php

<?php $i = 0; $perRow = 4; ?>

@foreach ($images as $image)
	<?php $i++; ?>
	
	@if ($i % $perRow == 1)
		<tr>
	@endif

	<td><img src="{{ $image->url }}"></td>

	@if ($i % $perRow == 0)
		</tr>
	@endif

@endforeach

blade-extensions.php

<?php

// @usingPerRow(4)
Blade::extend(function($value, $compiler) {
	$pattern = $compiler->createMatcher('usingPerRow');

	$replace = '<?php $currentPerRowCount = 0; $perRowSetting = $2; ?>';

	return preg_replace($pattern, '$1'.$replace, $value);
});

// incrementPerRow()
Blade::extend(function($value, $compiler) {
	$pattern = $compiler->createOpenMatcher('incrementPerRow');

	$replace = '<?php $currentPerRowCount++; ?>';

	return preg_replace($pattern, '$1'.$replace, $value);
});

// whenStartOfRow
Blade::extend(function($value, $compiler) {
	$pattern = $compiler->createPlainMatcher('whenStartOfRow');

	$replace = '<?php if ($currentPerRowCount % $perRowSetting === 1) : ?>';

	return preg_replace($pattern, '$1'.$replace, $value);
});

// closeStartOfRow
Blade::extend(function($value, $compiler) {
	$pattern = $compiler->createPlainMatcher('closeStartOfRow');

	$replace = '<?php endif; ?>';

	return preg_replace($pattern, '$1'.$replace, $value);
});

// whenEndOfRow
Blade::extend(function($value, $compiler) {
	$pattern = $compiler->createPlainMatcher('whenEndOfRow');

	$replace = '<?php if ($currentPerRowCount % $perRowSetting === 0) : ?>';

	return preg_replace($pattern, '$1'.$replace, $value);
});

// closeEndOfRow
Blade::extend(function($value, $compiler) {
	$pattern = $compiler->createPlainMatcher('closeEndOfRow');

	$replace = '<?php endif; ?>';

	return preg_replace($pattern, '$1'.$replace, $value);
});