java英文单词单复数转换

package steam;import java.util.*;
import java.util.regex.*;
/*** *  单复数转换类* 2018年12月30日*/public class Inflector {private static final Pattern UNDERSCORE_PATTERN_1 = Pattern.compile("([A-Z]+)([A-Z][a-z])");private static final Pattern UNDERSCORE_PATTERN_2 = Pattern.compile("([a-z\\d])([A-Z])");private static List<RuleAndReplacement> plurals = new ArrayList<RuleAndReplacement>();private static List<RuleAndReplacement> singulars = new ArrayList<RuleAndReplacement>();private static List<String> uncountables = new ArrayList<String>();private static Inflector instance; private Inflector() {initialize();}public static void main(String[] args) {// TODO Auto-generated method stub// 单数转复数System.out.println(Inflector.getInstance().pluralize("water"));System.out.println(Inflector.getInstance().pluralize("box"));System.out.println(Inflector.getInstance().pluralize("tomato"));// 复数转单数System.out.println(Inflector.getInstance().singularize("apples"));}private void initialize() {plural("$", "s");plural("s$", "s");plural("(ax|test)is$", "$1es");plural("(octop|vir)us$", "$1i");plural("(alias|status)$", "$1es");plural("(bu)s$", "$1es");plural("(buffal|tomat)o$", "$1oes");plural("([ti])um$", "$1a");plural("sis$", "ses");plural("(?:([^f])fe|([lr])f)$", "$1$2ves");plural("(hive)$", "$1s");plural("([^aeiouy]|qu)y$", "$1ies");plural("([^aeiouy]|qu)ies$", "$1y");plural("(x|ch|ss|sh)$", "$1es");plural("(matr|vert|ind)ix|ex$", "$1ices");plural("([m|l])ouse$", "$1ice");plural("(ox)$", "$1es");plural("(quiz)$", "$1zes");singular("s$", "");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)es", "$1");singular("(vert|ind)ices$", "$1ex");singular("(matr)ices$", "$1ix");singular("(quiz)zes$", "$1");irregular("person", "people");irregular("man", "men");irregular("child", "children");irregular("sex", "sexes");irregular("move", "moves");uncountable(new String[] { "equipment", "information", "rice", "money", "species", "series", "fish", "sheep" });}public static Inflector getInstance() {if (instance == null) {instance = new Inflector();}return instance;}public String underscore(String camelCasedWord) {String underscoredWord = UNDERSCORE_PATTERN_1.matcher(camelCasedWord).replaceAll("$1_$2");underscoredWord = UNDERSCORE_PATTERN_2.matcher(underscoredWord).replaceAll("$1_$2");underscoredWord = underscoredWord.replace('-', '_').toLowerCase();return underscoredWord;}public String pluralize(String word) {if (uncountables.contains(word.toLowerCase())) {return word;}return replaceWithFirstRule(word, plurals);}public String singularize(String word) {if (uncountables.contains(word.toLowerCase())) {return word;}return replaceWithFirstRule(word, singulars);}private String replaceWithFirstRule(String word, List<RuleAndReplacement> ruleAndReplacements) {for (RuleAndReplacement rar : ruleAndReplacements) {String rule = rar.getRule();String replacement = rar.getReplacement();// Return if we find a match.Matcher matcher = Pattern.compile(rule, Pattern.CASE_INSENSITIVE).matcher(word);if (matcher.find()) {return matcher.replaceAll(replacement);}}return word;}public String tableize(String className) {return pluralize(underscore(className));}public String tableize(Class<?> klass) {String className = klass.getName().replace(klass.getPackage().getName() + ".", "");return tableize(className);}public static void plural(String rule, String replacement) {plurals.add(0, new RuleAndReplacement(rule, replacement));}public static void singular(String rule, String replacement) {singulars.add(0, new RuleAndReplacement(rule, replacement));}public static void irregular(String singular, String plural) {plural(singular, plural);singular(plural, singular);}public static void uncountable(String... words) {for (String word : words) {uncountables.add(word);}}
}class RuleAndReplacement {private String rule;private String replacement;public RuleAndReplacement(String rule, String replacement) {this.rule = rule;this.replacement = replacement;}public String getReplacement() {return replacement;}public void setReplacement(String replacement) {this.replacement = replacement;}public String getRule() {return rule;}public void setRule(String rule) {this.rule = rule;}
}

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java英文单词单复数转换

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