static {
// plural is "singular to plural form"
// singular is "plural to singular form"
plural("$", "s");
plural("s$", "s");
plural("(ax|test)is$", "$1es");
plural("(octop|vir)us$", "$1i");
plural("(alias|status)$", "$1es");
plural("(bu)s$", "$1ses");
plural("(buffal|tomat)o$", "$1oes");
plural("([ti])um$", "$1a");
plural("sis$", "ses");
plural("(?:([^f])fe|([lr])f)$", "$1$2ves");
plural("(hive)$", "$1s");
plural("([^aeiouy]|qu)y$", "$1ies");
// plural("([^aeiouy]|qu)ies$", "$1y");
plural("(x|ch|ss|sh)$", "$1es");
plural("(matr|vert|ind)ix|ex$", "$1ices");
plural("([m|l])ouse$", "$1ice");
plural("^(ox)$", "$1en");
plural("(quiz)$", "$1zes");
singular("s$", "");
singular("(n)ews$", "$1ews");
singular("([ti])a$", "$1um");
singular("((a)naly|(b)a|(d)iagno|(p)arenthe|(p)rogno|(s)ynop|(t)he)ses$", "$1$2sis");
singular("(^analy)ses$", "$1sis");
singular("([^f])ves$", "$1fe");
singular("(hive)s$", "$1");
singular("(tive)s$", "$1");
singular("([lr])ves$", "$1f");
singular("([^aeiouy]|qu)ies$", "$1y");
singular("(s)eries$", "$1eries");
singular("(m)ovies$", "$1ovie");
singular("(x|ch|ss|sh)es$", "$1");
singular("([m|l])ice$", "$1ouse");
singular("(bus)es$", "$1");
singular("(o)es$", "$1");
singular("(shoe)s$", "$1");
singular("(cris|ax|test)es$", "$1is");
singular("(octop|vir)i$", "$1us");
singular("(alias|status)es$", "$1");
singular("^(ox)en", "$1");
singular("(vert|ind)ices$", "$1ex");
singular("(matr)ices$", "$1ix");
singular("(quiz)zes$", "$1");
// irregular
irregular("person", "people");
irregular("man", "men");
irregular("child", "children");
irregular("sex", "sexes");
irregular("move", "moves");
uncountable("equipment");
uncountable("information");
uncountable("rice");
uncountable("money");
uncountable("species");
uncountable("series");
uncountable("fish");
uncountable("sheep");
// Collections.reverse(singular);
// Collections.reverse(plural);
}
private static void irregular(String s, String p) {
plural("(" + s.substring(0, 1) + ")" + s.substring(1) + "$", "$1" + p.substring(1));
singular("(" + p.substring(0, 1) + ")" + p.substring(1) + "$", "$1" + s.substring(1));
}