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// @ts-check
const FALSE_VALUES = [
false,
0,
'0',
'f',
'F',
'false',
'FALSE',
'off',
'OFF',
];
/**
* @param {any} value
* @returns {boolean}
*/
export function isTruthy(value) {
return value && !FALSE_VALUES.includes(value);
}
/**
* See app/lib/ascii_folder.rb for the canon definitions
* of these constants
*/
const NON_ASCII_CHARS = 'ÀÁÂÃÄÅàáâãäåĀāĂ㥹ÇçĆćĈĉĊċČčÐðĎďĐđÈÉÊËèéêëĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħÌÍÎÏìíîïĨĩĪīĬĭĮįİıĴĵĶķĸĹĺĻļĽľĿŀŁłÑñŃńŅņŇňʼnŊŋÒÓÔÕÖØòóôõöøŌōŎŏŐőŔŕŖŗŘřŚśŜŝŞşŠšſŢţŤťŦŧÙÚÛÜùúûüŨũŪūŬŭŮůŰűŲųŴŵÝýÿŶŷŸŹźŻżŽž';
const EQUIVALENT_ASCII_CHARS = 'AAAAAAaaaaaaAaAaAaCcCcCcCcCcDdDdDdEEEEeeeeEeEeEeEeEeGgGgGgGgHhHhIIIIiiiiIiIiIiIiIiJjKkkLlLlLlLlLlNnNnNnNnnNnOOOOOOooooooOoOoOoRrRrRrSsSsSsSssTtTtTtUUUUuuuuUuUuUuUuUuUuWwYyyYyYZzZzZz';
/**
* @param {string} str
* @returns {string}
*/
export function foldToASCII(str) {
const regex = new RegExp(NON_ASCII_CHARS.split('').join('|'), 'g');
return str.replace(regex, function(match) {
const index = NON_ASCII_CHARS.indexOf(match);
return EQUIVALENT_ASCII_CHARS[index];
});
}
/**
* @param {string} str
* @returns {string}
*/
export function normalizeHashtag(str) {
return foldToASCII(str.normalize('NFKC').toLowerCase()).replace(/[^\p{L}\p{N}_\u00b7\u200c]/gu, '');
}
/**
* @param {string|string[]} arrayOrString
* @returns {string}
*/
export function firstParam(arrayOrString) {
if (Array.isArray(arrayOrString)) {
return arrayOrString[0];
} else {
return arrayOrString;
}
}
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