function Tokenizer::is_alpha

Checks whether a (single-byte) character is an ASCII letter or not.

Parameters

string $input A single-byte string:

Return value

bool True if it is a letter, False otherwise

2 calls to Tokenizer::is_alpha()

Tokenizer::consumeData in vendor/masterminds/html5/src/HTML5/Parser/Tokenizer.php: Consume a character and make a move. HTML5 8.2.4.1.
Tokenizer::endTag in vendor/masterminds/html5/src/HTML5/Parser/Tokenizer.php: Consume an end tag. See section 8.2.4.9.

File

vendor/masterminds/html5/src/HTML5/Parser/Tokenizer.php, line 1208

Class

Tokenizer: The HTML5 tokenizer.

Namespace

Masterminds\HTML5\Parser

Code

protected function is_alpha($input) {
    $code = ord($input);
    return $code >= 97 && $code <= 122 || $code >= 65 && $code <= 90;
}