All files / src utils.js

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const regex_return_characters = /\r/g;
 
/**
 * @param {string} str
 * @returns {string}
 */
export function hash(str) {
	str = str.replace(regex_return_characters, '');
	let hash = 5381;
	let i = str.length;
 
	while (i--) hash = ((hash << 5) - hash) ^ str.charCodeAt(i);
	return (hash >>> 0).toString(36);
}
 
const VOID_ELEMENT_NAMES = [
	'area',
	'base',
	'br',
	'col',
	'command',
	'embed',
	'hr',
	'img',
	'input',
	'keygen',
	'link',
	'meta',
	'param',
	'source',
	'track',
	'wbr'
];
 
/**
 * Returns `true` if `name` is of a void element
 * @param {string} name
 */
export function is_void(name) {
	return VOID_ELEMENT_NAMES.includes(name) || name.toLowerCase() === '!doctype';
}
 
const RESERVED_WORDS = [
	'arguments',
	'await',
	'break',
	'case',
	'catch',
	'class',
	'const',
	'continue',
	'debugger',
	'default',
	'delete',
	'do',
	'else',
	'enum',
	'eval',
	'export',
	'extends',
	'false',
	'finally',
	'for',
	'function',
	'if',
	'implements',
	'import',
	'in',
	'instanceof',
	'interface',
	'let',
	'new',
	'null',
	'package',
	'private',
	'protected',
	'public',
	'return',
	'static',
	'super',
	'switch',
	'this',
	'throw',
	'true',
	'try',
	'typeof',
	'var',
	'void',
	'while',
	'with',
	'yield'
];
 
/**
 * Returns `true` if `word` is a reserved JavaScript keyword
 * @param {string} word
 */
export function is_reserved(word) {
	return RESERVED_WORDS.includes(word);
}