Modern DOM library written in PHP for HTML documents
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<?php
declare(strict_types=1);
namespace dW\HTML5;
class Exception extends \Exception {
const INVALID_CODE = 10000;
const UNKNOWN_ERROR = 10001;
const INCORRECT_PARAMETERS_FOR_MESSAGE = 10002;
const PARSER_NONEMPTY_DOCUMENT = 10101;
const STACK_INVALID_INDEX = 10201;
const STACK_ELEMENT_DOCUMENT_DOCUMENTFRAG_EXPECTED = 10202;
const STACK_ELEMENT_STRING_ARRAY_EXPECTED = 10203;
const STACK_STRING_ARRAY_EXPECTED = 10204;
const DATA_NODATA = 10301;
const DATA_INVALID_DATA_CONSUMPTION_LENGTH = 10302;
const TOKENIZER_INVALID_STATE = 10401;
const TREEBUILDER_FORMELEMENT_EXPECTED = 10501;
const TREEBUILDER_DOCUMENTFRAG_ELEMENT_DOCUMENT_DOCUMENTFRAG_EXPECTED = 10502;
const TREEBUILDER_UNEXPECTED_END_OF_FILE = 10503;
protected static $messages = [
10000 => 'Invalid error code',
10001 => 'Unknown error; escaping',
10002 => 'Incorrect number of parameters for Exception message; %s expected',
10101 => 'Non-empty Document supplied as argument for Parser',
10201 => '%s is an invalid Stack index',
10202 => 'Element, Document, or DOMDocumentFragment expected for fragment context',
10203 => 'Element, string, or array expected',
10203 => 'String or array expected',
10301 => 'Data string expected; found %s',
10302 => '%s is an invalid data consumption length; a value of 1 or above is expected',
10401 => 'The Tokenizer has entered an invalid state',
10501 => 'Form element expected, found %s',
10502 => 'Element, Document, or DOMDocumentFragment expected; found %s',
10503 => 'Unexpected end of file',
10601 => 'Method %1$s::%2$s has been disabled from %1$s'
];
public function __construct(int $code, ...$args) {
if (!isset(static::$messages[$code])) {
throw new Exception(self::INVALID_CODE);
}
$message = static::$messages[$code];
$previous = null;
if ($args) {
// Grab a previous exception if there is one.
if ($args[0] instanceof \Throwable) {
$previous = array_shift($args);
} elseif (end($args) instanceof \Throwable) {
$previous = array_pop($args);
}
}
// Count the number of replacements needed in the message.
preg_match_all('/(\%(?:\d+\$)?s)/', $message, $matches);
$count = count(array_unique($matches[1]));
// If the number of replacements don't match the arguments then oops.
if (count($args) !== $count) {
throw new Exception(self::INCORRECT_PARAMETERS_FOR_MESSAGE, $count);
}
if ($count > 0) {
// Go through each of the arguments and run sprintf on the strings.
$message = call_user_func_array('sprintf', array_merge([$message], $args));
}
parent::__construct($message, $code, $previous);
}
}