151 lines
3.3 KiB
PHP
151 lines
3.3 KiB
PHP
<?php namespace Laravel; isset($GLOBALS['APP_PATH']) or die('No direct script access.');
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class Blade {
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/**
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* All of the compiler functions used by Blade.
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*
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* @var array
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*/
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protected static $compilers = array(
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'echos',
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'structure_openings',
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'structure_closings',
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'else',
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'yields',
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'section_start',
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'section_end',
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);
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/**
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* Compiles the specified file containing Blade pseudo-code into valid PHP.
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*
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* @param string $path
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* @return string
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*/
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public static function compile($path)
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{
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return static::compile_string(file_get_contents($path));
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}
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/**
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* Compiles the given string containing Blade pseudo-code into valid PHP.
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*
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* @param string $value
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* @return string
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*/
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public static function compile_string($value)
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{
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foreach (static::$compilers as $compiler)
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{
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$method = "compile_{$compiler}";
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$value = static::$method($value);
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}
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return $value;
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}
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/**
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* Rewrites Blade echo statements into PHP echo statements.
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*
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* @param string $value
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* @return string
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*/
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protected static function compile_echos($value)
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{
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return preg_replace('/\{\{(.+?)\}\}/', '<?php echo $1; ?>', $value);
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}
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/**
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* Rewrites Blade structure openings into PHP structure openings.
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*
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* @param string $value
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* @return string
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*/
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protected static function compile_structure_openings($value)
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{
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$pattern = '/(\s*)@(if|elseif|foreach|for|while)(\s*\(.*\))/';
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return preg_replace($pattern, '$1<?php $2$3: ?>', $value);
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}
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/**
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* Rewrites Blade structure closings into PHP structure closings.
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*
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* @param string $value
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* @return string
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*/
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protected static function compile_structure_closings($value)
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{
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$pattern = '/(\s*)@(endif|endforeach|endfor|endwhile)(\s*)/';
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return preg_replace($pattern, '$1<?php $2; ?>$3', $value);
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}
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/**
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* Rewrites Blade else statements into PHP else statements.
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*
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* @param string $value
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* @return string
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*/
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protected static function compile_else($value)
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{
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return preg_replace('/(\s*)@(else)(\s*)/', '$1<?php $2: ?>$3', $value);
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}
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/**
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* Rewrites Blade @yield statements into Section statements.
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*
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* The Blade @yield statement is a shortcut to the Section::yield method.
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*
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* @param string $value
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* @return string
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*/
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protected static function compile_yields($value)
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{
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$pattern = static::matcher('yield');
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return preg_replace($pattern, '$1<?php echo \\Laravel\\Section::yield$2; ?>', $value);
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}
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/**
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* Rewrites Blade @section statements into Section statements.
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*
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* The Blade @section statement is a shortcut to the Section::start method.
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*
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* @param string $value
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* @return string
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*/
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protected static function compile_section_start($value)
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{
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$pattern = static::matcher('section');
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return preg_replace($pattern, '$1<?php \\Laravel\\Section::start$2; ?>', $value);
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}
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/**
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* Rewrites Blade @endsection statements into Section statements.
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*
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* The Blade @endsection statement is a shortcut to the Section::stop method.
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*
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* @param string $value
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* @return string
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*/
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protected static function compile_section_end($value)
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{
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return preg_replace('/@endsection/', '<?php \\Laravel\\Section::stop(); ?>', $value);
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}
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/**
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* Get the regular expression for a generic Blade function.
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*
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* @param string $function
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* @return string
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*/
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protected static function matcher($function)
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{
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return '/(\s*)@'.$function.'(\s*\(.*\))/';
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}
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} |