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<?php |
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namespace DrewM\Selecta; |
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class Selecta |
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{ |
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public static $single_tags = array('img', 'br', 'hr', 'input'); |
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public static $pseudo_classes = array('disabled', 'checked'); |
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public static $meta_map = array('.'=>'class', '#'=>'id'); |
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public static function build($selector, $contents='', $open_tags=true, $close_tags=true) |
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{ |
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$parts = explode(' ', $selector); |
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if (count($parts)) { |
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$parts = array_reverse($parts); |
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foreach($parts as $part) { |
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$contents = self::tagify($part, $contents, $open_tags, $close_tags); |
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} |
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} |
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return $contents; |
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} |
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public static function wrap($selector, $contents='') |
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{ |
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return self::build($selector, $contents, true, true); |
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} |
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public static function open($selector) |
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{ |
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return self::build($selector, '', true, false); |
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} |
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public static function close($selector) |
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{ |
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return self::build($selector, '', false, true); |
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} |
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private static function tagify($selector='', $contents='', $open_tags=true, $close_tags=true) |
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{ |
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$attrs = array(); |
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// replace dots within attribute selectors |
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preg_match_all('/\[.*?\]/', $selector, $matches, PREG_SET_ORDER); |
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if (count($matches)) { |
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foreach($matches as $match) { |
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$exact = $match[0]; |
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$new = str_replace('.', '__DOT__', $exact); |
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$selector = str_replace($exact, $new, $selector); |
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} |
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} |
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$metas = '\.\#\[\:'; |
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$pattern = '/(['.$metas.'])([^'.$metas.']*)?/'; |
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preg_match_all($pattern, $selector, $matches, PREG_SET_ORDER); |
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if (count($matches)) { |
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foreach($matches as $match) { |
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$attrs = self::build_attributes($match[1], $match[2], $attrs); |
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} |
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// reduce selector to just tag name |
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$parts = preg_split('/['.$metas.']/', $selector); |
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$selector = $parts[0]; |
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} |
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return self::build_tag($selector, $attrs, $contents, $open_tags, $close_tags); |
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} |
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private static function build_attributes($meta_char, $value, $attrs) |
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{ |
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$key = false; |
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if (isset(self::$meta_map[$meta_char])) { |
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$key = self::$meta_map[$meta_char]; |
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}else{ |
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switch ($meta_char) { |
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// Attribute selectors |
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case '[': |
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$value = rtrim($value, ']'); |
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if (strpos($value, '=')) { |
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$parts = explode('=', $value, 2); |
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$key = $parts[0]; |
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$value = str_replace('__DOT__', '.', $parts[1]); |
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}else{ |
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$key = $value; |
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$value = false; |
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} |
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break; |
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// Pseudo-class selectors |
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case ':': |
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list($key, $value) = self::build_pseudo_class_attribute($value); |
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break; |
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} |
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} |
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if ($key){ |
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if (isset($attrs[$key])) { |
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$attrs[$key] .= ' '.$value; |
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}else{ |
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$attrs[$key] = $value; |
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} |
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} |
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return $attrs; |
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} |
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private static function build_pseudo_class_attribute($pclass='') |
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{ |
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if (in_array($pclass, self::$pseudo_classes)) { |
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return array($pclass, false); |
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} |
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return array(false, false); |
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} |
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private static function build_tag($name, $attributes=array(), $contents='', $open_tag=true, $close_tag=true) |
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{ |
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$tag = ''; |
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if ($open_tag) { |
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$tag = self::open_tag($name, $attributes); |
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} |
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if (in_array($name, self::$single_tags)) { |
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return $contents.$tag; |
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} |
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$tag .= $contents; |
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if ($close_tag) { |
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$tag .= self::close_tag($name); |
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} |
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return $tag; |
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} |
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private static function open_tag($name, $attributes=array()) |
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{ |
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$tag = '<'.self::html($name); |
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if (count($attributes)) { |
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// do attributes |
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$attpairs = array(); |
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foreach($attributes as $key=>$val) { |
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if ($val!='') { |
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$attpairs[] = self::html($key).'="'.self::html($val, true).'"'; |
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}else{ |
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$attpairs[] = self::html($key); |
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} |
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} |
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$tag .= ' '.implode(' ', $attpairs); |
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} |
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$tag .= '>'; |
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return $tag; |
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} |
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private static function close_tag($name) |
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{ |
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return '</'.self::html($name).'>'; |
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} |
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private static function html($s, $quotes=false, $double_encode=false) |
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{ |
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if ($quotes) { |
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$q = ENT_QUOTES; |
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}else{ |
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$q = ENT_NOQUOTES; |
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} |
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if ($s || (is_string($s) && strlen($s))) return htmlspecialchars($s, $q, 'UTF-8', $double_encode); |
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return ''; |
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} |
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} |
drewm /
selecta
