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Initial version of Simple PHP CSS Parser v.1.0.0
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Intekhab Rizvi
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May 30, 2015
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<?php | ||
class Cssparser{ | ||
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protected $raw_css; | ||
public $css; | ||
public $file; | ||
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public function read_from_file($file) | ||
{ | ||
if(!empty($file) && file_exists($file)) | ||
{ | ||
$this->file = $file; | ||
$this->raw_css = file_get_contents($file); | ||
$this->do_operation(); | ||
} | ||
else | ||
{ | ||
echo "Exact and correct file path needed."; | ||
exit(0); | ||
} | ||
} | ||
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public function read_from_string($str) | ||
{ | ||
if(!empty($str)) | ||
{ | ||
$this->raw_css = $str; | ||
$this->do_operation(); | ||
} | ||
else | ||
{ | ||
echo "String is empty."; | ||
exit(0); | ||
} | ||
} | ||
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private function do_operation() | ||
{ | ||
preg_match_all('/(.+?)\s?\{\s?(.+?)\s?\}/', $this->raw_css, $level1); | ||
unset($this->raw_css); | ||
if(count($level1) == 3) | ||
{ | ||
$parent = count($level1[1]); | ||
$parent_value = count($level1[2]); | ||
if($parent == $parent_value) | ||
{ | ||
for($i=0; $i<$parent; $i++) | ||
{ | ||
//$this->css[trim($level1[1][$i])] = explode(";",trim($level1[2][$i])); | ||
$level2 = explode(";",trim($level1[2][$i])); | ||
foreach($level2 as $l2) | ||
{ | ||
if(!empty($l2)) | ||
{ | ||
$level3 = explode(":", trim($l2)); | ||
$this->css[$this->clean($level1[1][$i])][$this->clean($level3[0])] = $this->clean($level3[1]); | ||
unset($level3); | ||
} | ||
} | ||
unset($level2, $l2); | ||
} | ||
} | ||
else | ||
{ | ||
echo "css is not parsable"; | ||
exit(0); | ||
} | ||
/*echo "<pre>"; | ||
var_dump($level1); | ||
var_dump($this->css);*/ | ||
unset($level1); | ||
} | ||
else{ | ||
echo "css is not parsable"; | ||
exit(0); | ||
} | ||
} | ||
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public function find_parent($parent) | ||
{ | ||
$parent = $this->clean($parent); | ||
if(isset($this->css[$parent])) | ||
{ | ||
return $this->css[$parent]; | ||
} | ||
else | ||
{ | ||
return array(); | ||
} | ||
} | ||
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public function find_parent_by_property($property) | ||
{ | ||
$results = array(); | ||
$property = $this->clean($property); | ||
foreach($this->css as $key1 => $css) | ||
{ | ||
foreach ($css as $key2 => $value2) | ||
{ | ||
if($key2 == $property) | ||
{ | ||
$results[][$key1] = $css; | ||
break 1; | ||
} | ||
} | ||
} | ||
return $results; | ||
} | ||
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public function find_parent_by_value($pvalue) | ||
{ | ||
$results = array(); | ||
$pvalue = $this->clean($pvalue); | ||
foreach($this->css as $key1 => $css) | ||
{ | ||
foreach ($css as $key2 => $value2) | ||
{ | ||
if($value2 == $pvalue) | ||
{ | ||
$results[][$key1] = $css; | ||
break 1; | ||
} | ||
} | ||
} | ||
return $results; | ||
} | ||
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public function find_property_value_pair($property, $value) | ||
{ | ||
$results = array(); | ||
$one = $this->clean($property); | ||
$two = $this->clean($value); | ||
foreach($this->css as $key1 => $css) | ||
{ | ||
foreach ($css as $key2 => $value2) | ||
{ | ||
if($key2 == $one && $value2 == $two) | ||
{ | ||
$results[][$key1] = $css; | ||
break 1; | ||
} | ||
} | ||
} | ||
return $results; | ||
} | ||
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public function add_parent($parent, $value=array()) | ||
{ | ||
if(!empty($parent)) | ||
{ | ||
$parent = $this->clean($parent); | ||
if(isset($this->css[$parent]) == false) | ||
{ | ||
if(is_array($value) == TRUE) | ||
{ | ||
$this->css[$parent] = $value; | ||
return true; | ||
} | ||
else if(empty($value) == TRUE) | ||
{ | ||
$this->css[$parent] = array(); | ||
return true; | ||
} | ||
else | ||
{ | ||
echo "2nd argument should be an array."; | ||
exit(0); | ||
} | ||
} | ||
else | ||
{ | ||
if(is_array($value) == TRUE && !empty($value)) | ||
{ | ||
foreach($value as $k=>$v) | ||
{ | ||
$this->css[$parent][$k] = $v; | ||
return true; | ||
} | ||
} | ||
else | ||
{ | ||
echo "2nd argument should be an array."; | ||
exit(0); | ||
} | ||
} | ||
} | ||
else | ||
{ | ||
echo "Need parent tag name before performing any addition."; | ||
exit(0); | ||
} | ||
} | ||
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public function remove_parent($parent) | ||
{ | ||
$parent = $this->clean($parent); | ||
if(isset($this->css[$parent]) == TRUE) | ||
{ | ||
unset($this->css[$parent]); | ||
return true; | ||
} | ||
else | ||
{ | ||
return false; | ||
} | ||
} | ||
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public function rename_parent($current_name, $new_name) | ||
{ | ||
$current_name = $this->clean($current_name); | ||
$new_name = $this->clean($new_name); | ||
if(!empty($current_name) && !empty($new_name) && ($current_name != $new_name)) | ||
{ | ||
if(isset($this->css[$current_name]) == TRUE) | ||
{ | ||
$this->css[$new_name] = $this->css[$current_name]; | ||
$this->remove_parent($current_name); | ||
return true; | ||
} | ||
else | ||
{ | ||
return false; | ||
} | ||
} | ||
else | ||
{ | ||
echo "Parent tag's current and new both name require."; | ||
exit(0); | ||
} | ||
} | ||
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public function add_property($parent, $property, $value, $upsert=false) | ||
{ | ||
if(!empty($parent) && !empty($property) && !empty($value)) | ||
{ | ||
$parent = $this->clean($parent); | ||
$property = $this->clean($property); | ||
$value = $this->clean($value); | ||
if(isset($this->css[$parent]) == true || (isset($this->css[$parent]) == false && $upsert == true)) | ||
{ | ||
$this->css[$parent][$property] = $value; | ||
return true; | ||
} | ||
return false; | ||
} | ||
else | ||
{ | ||
echo "Need all 3 value."; | ||
exit(0); | ||
} | ||
} | ||
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public function update_property($parent, $property, $value) | ||
{ | ||
if(!empty($parent) && !empty($property) && !empty($value)) | ||
{ | ||
$parent = $this->clean($parent); | ||
$property = $this->clean($property); | ||
$value = $this->clean($value); | ||
if(isset($this->css[$parent]) == true) | ||
{ | ||
$this->css[$parent][$property] = $value; | ||
return true; | ||
} | ||
return false; | ||
} | ||
else | ||
{ | ||
echo "Need all 3 value."; | ||
exit(0); | ||
} | ||
} | ||
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public function remove_property($parent, $property) | ||
{ | ||
if(!empty($parent) && !empty($property)) | ||
{ | ||
$parent = $this->clean($parent); | ||
$property = $this->clean($property); | ||
if(isset($this->css[$parent]) == true) | ||
{ | ||
unset($this->css[$parent][$property]); | ||
return true; | ||
} | ||
return false; | ||
} | ||
else | ||
{ | ||
echo "Need all 2 value."; | ||
exit(0); | ||
} | ||
} | ||
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public function export_css() | ||
{ | ||
$css = ''; | ||
if(isset($this->css) && count($this->css) > 0) | ||
{ | ||
foreach($this->css as $level_1_key=>$level_1_value) | ||
{ | ||
$css .= stripslashes($level_1_key)." {\n"; | ||
foreach($level_1_value as $level_2_key=>$level_2_value) | ||
{ | ||
$css .= "\t".stripslashes($level_2_key)." : ".stripslashes($level_2_value).";\n"; | ||
} | ||
$css .= "}\n"; | ||
} | ||
} | ||
return $css; | ||
} | ||
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public function save() | ||
{ | ||
if(isset($this->file) == TRUE && !empty($file) && file_exists($file)) | ||
{ | ||
$css = $this->export_css(); | ||
$fh = fopen($this->file, "w") or die("Fail to open ".$file." with write permission."); | ||
fwrite($fh, $css); | ||
fclose($fh); | ||
unset($css); | ||
return true; | ||
} | ||
else | ||
{ | ||
echo "CSS file name with exact path is missing."; | ||
exit(0); | ||
} | ||
} | ||
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public function __destruct() | ||
{ | ||
unset($this->css, $this->raw_css, $this->file); | ||
} | ||
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private function clean($value) | ||
{ | ||
return addslashes(trim($value)); | ||
} | ||
} |