From 3a4f32cd57af83c0b5ed59146e7839dbe13f8e56 Mon Sep 17 00:00:00 2001 From: "pabs@pablotron.org" Date: Thu, 18 Dec 2014 11:40:47 -0500 Subject: mv template.php luigi-template.php --- php/template.php | 370 ------------------------------------------------------- 1 file changed, 370 deletions(-) delete mode 100644 php/template.php (limited to 'php/template.php') diff --git a/php/template.php b/php/template.php deleted file mode 100644 index cec1ff6..0000000 --- a/php/template.php +++ /dev/null @@ -1,370 +0,0 @@ - function($s) { - return htmlspecialchars($v); - }, - - 'u' => function($s) { - return urlencode($v); - }, - - 'json' => function($v) { - return json_encode($v); - }, - - 'hash' => function($v, $args) { - $algo = (count($args) == 1) ? $args[0] : 'md5'; - return hash($algo, $v); - }, - - 'base64' => function($v) { - return base64_encode($v); - }, - - 'nl2br' => function($v) { - return nl2br($v); - }, - - 'uc' => function($v) { - return strtoupper($v); - }, - - 'lc' => function($v) { - return strtolower($v); - }, - - 'trim' => function($v) { - return trim($v); - }, - - 'rtrim' => function($v) { - return rtrim($v); - }, - - 'ltrim' => function($v) { - return ltrim($v); - }, - - 's' => function($v) { - return ($v == 1) ? '' : 's'; - }, - - 'strlen' => function($v) { - return strlen($v); - }, - - 'count' => function($v) { - return count($v); - }, - ); - } - - public static function get($key) { - self::init(); - - if (!isset(self::$filters[$key])) - throw new Error("unknown filter: $key"); - - return self::$filters[$key]; - } - - public static function add(array $filters) { - self::init(); - self::$filters = array_merge(self::$filters, $filters); - } -}; - -final class LegacyParser { - private static $RES = array( - 'action' => '/ - # match opening brace - %\{\s* - - # match key - ([\w_-]+) - - # match filter(s) - ((\s*\|\s*\w+\s*(\([\w\s,-]+\))?)*) - - # match closing brace - \} - - # or match up all non-% chars or a single % char - | ([^%]* | %) - /mx', - - 'filter' => '/ - # match filter name - ([\w_-]+) - - # optional trailing whitespace - \s* - - # optional filter arguments - (\(([\w\s_,-]+)\))? - /mx', - ); - - public static function parse_template($template) { - # build list of matches - $matches = array(); - $num_matches = preg_match_all( - self::$RES['action'], - $template, - $matches, - PREG_SET_ORDER - ); - - # check for error - if ($num_matches === false) - throw new Error('error matching template'); - - # walk over matches and build list of actions - $r = array_map(function($m) { - if ($m[1] !== '') { - # key and filters - return array( - 'type' => 'action', - 'key' => $m[1], - 'filters' => self::parse_filters($m[2]), - ); - } else { - # literal text - return array( - 'type' => 'text', - 'text' => $m[5], - ); - } - }, $matches); - - # return result - return $r; - } - - public static function parse_filters($filters) { - # split into individual filters - $r = array(); - foreach (preg_split('/\s*\|\s*/', $filters) as $f) { - # skip empty filters - if (!$f) - continue; - - # match filter - $md = array(); - if (!preg_match(self::$RES['filter'], $f, $md)) - throw new Error("invalid filter: $f"); - - # add filter to results - $r[] = array( - # filter name - 'name' => $md[1], - - # filter arguments - 'args' => (count($md) > 2) ? preg_split( - '/\s*,\s*/', - trim($md[3]) - ) : array(), - ); - } - - # return results - return $r; - } -}; - -final class Parser { - private static $RES = array( - 'action' => '/ - # match opening brace - %\{ - - # match optional whitespace - \s* - - # match key - (?[^\s\|\}]+) - - # match filter(s) - (?(\s*\|(\s*[^\s\|\}]+)+)*) - - # match optional whitespace - \s* - - # match closing brace - \} - - # or match up all non-% chars or a single % char - | (?[^%]* | %) - /mx', - - 'filter' => '/ - # match filter name - (?\S+) - - # match filter arguments (optional) - (?(\s*\S+)*) - - # optional trailing whitespace - \s* - /mx', - - 'delim_filters' => '/\s*\|\s*/m', - 'delim_args' => '/\s+/m', - ); - - public static function parse_template($template) { - # build list of matches - $matches = array(); - $num_matches = preg_match_all( - self::$RES['action'], - $template, - $matches, - PREG_SET_ORDER - ); - - # check for error - if ($num_matches === false) - throw new Error("invalid template: $template"); - - # walk over matches and build list of actions - $r = array_map(function($m) { - if ($m['key'] !== '') { - # key and filters - return array( - 'type' => 'action', - 'key' => $m['key'], - 'filters' => self::parse_filters($m['filters']), - ); - } else { - # literal text - return array( - 'type' => 'text', - 'text' => $m['text'], - ); - } - }, $matches); - - # return result - return $r; - } - - public static function parse_filters($filters) { - # split into individual filters - $r = array(); - foreach (preg_split(self::$RES['delim_filters'], $filters) as $f) { - # trim whitespace - $f = trim($f); - - # skip empty filters - if (!$f) - continue; - - # match filter - $md = array(); - if (!preg_match(self::$RES['filter'], $f, $md)) - throw new Error("invalid filter: $f"); - - # add filter to results - $r[] = array( - # filter name - 'name' => $md['name'], - - # filter arguments - 'args' => (count($md) > 2) ? preg_split( - self::$RES['delim_args'], - trim($md['args']) - ) : array(), - ); - } - - # return results - return $r; - } -}; - -final class Template { - private $template, $actions, $o; - - public function __construct($template, array $o = array()) { - $this->template = $template; - $this->o = $o; - - # parse template into list of actions - $this->actions = Parser::parse_template($template); - } - - public function run(array $args = array()) { - # php sucks - $me = $this; - - return join('', array_map(function($row) use ($me, $args) { - if ($row['type'] == 'text') { - # literal text - return $row['text']; - } else if ($row['type'] == 'action') { - # template key (possibly with filters) - - # check value - if (!isset($args[$row['key']])) - throw new Error("unknown key: {$row['key']}"); - - # pass value through filters and return result - return array_reduce($row['filters'], function($r, $f) use ($me, $args) { - # get filter - $fn = Filters::get($f['name']); - - # call filter and return result - return call_user_func($fn, $r, $f['args'], $args, $me); - }, $args[$row['key']]); - } else { - # should never be reached - throw new Error("unknown action type: {$row['type']}"); - } - }, $this->actions)); - } - - public static function run_once($str, array $args = array()) { - $t = new Template($str); - return $t->run($args); - } -}; - -final class Cache { - private $templates, $o, $lut = array(); - - public function __construct(array $templates, array $o = array()) { - $this->templates = $templates; - $this->o = $o; - } - - public function get($key) { - if (!isset($this->lut[$key])) { - if (!isset($this->templates[$key])) - throw new Error("unknown template: $key"); - - # lazy-load template - $this->lut[$key] = new Template($this->templates[$key], $this->o); - } - - # return result - return $this->lut[$key]; - } - - public function run($key, array $args = array()) { - return $this->get($key)->run($args); - } -}; -- cgit v1.2.3