Function check_dom_name_value

pywebio/utils.py:378–384

check the class name / id name of DOM element

(value, name='`name`')

def check_dom_name_value(value, name='`name`'):
    """check the class name / id name of DOM element"""
    allowed_chars = set(string.ascii_letters + string.digits + '_-')

    if not all(i in allowed_chars for i in value):
        raise ValueError(name + " can only contain letters, digits, "
                                "hyphens ('-') and underscore ('_')")