逐个字符翻译字符串

Question

我应该如何 go 关于实现一种方法，该方法获取由拉丁字符组成的字符串以将其转换为由不同字符集组成的字符串，比方说西里尔字母。

例如，这是在 PHP 中的完成方式：

function latin_to_cyrillic($string)
{
 $array = array(
  "а" => "a",
  "б" => "b",
  "в" => "v",
  "г" => "g",
  "д" => "d",
  "е" => "e",
  "ж" => "zh",
  "з" => "z",
  "и" => "i",
  "й" => "y",
  "к" => "k",
  "л" => "l",
  "м" => "m",
  "н" => "n",
  "о" => "o",
  "п" => "p",
  "р" => "r",
  "с" => "s",
  "т" => "t",
  "у" => "u",
  "ф" => "f",
  "х" => "h",
  "ц" => "ts",
  "ч" => "ch",
  "ш" => "sh",
  "щ" => "sht",
  "ь" => "y",
  "ъ" => "a",
  "ю" => "yu",
  "я" => "ya",
  "А" => "A",
  "Б" => "B",
  "В" => "V",
  "Г" => "G",
  "Д" => "D",
  "Е" => "E",
  "Ж" => "Zh",
  "З" => "Z",
  "И" => "I",
  "Й" => "Y",
  "К" => "K",
  "Л" => "L",
  "М" => "M",
  "Н" => "N",
  "О" => "O",
  "П" => "P",
  "Р" => "R",
  "С" => "S",
  "Т" => "T",
  "У" => "U",
  "Ф" => "F",
  "Х" => "H",
  "Ц" => "Ts",
  "Ч" => "Ch",
  "Ш" => "Sh",
  "Щ" => "Sht",
  "Ь" => "Y",
  "Ъ" => "A",
  "Ю" => "Yu",
  "Я" => "Ya",
  "–" => "-");

 return str_replace(array_values($array), array_keys($array), $string);

}

Answer 1

首先，您需要一个转换表，为每个字符定义翻译。

然后，您按char读取字符串char，并使用翻译表获取翻译。 容易吧？

您可以使用以下方式：

class Translator {
 HashMap<String,String> translation = new HashMap<String,String>();

 public Translator(){
  //Populate the translation table here;
 }

 public String translate(String origin){
  String destiny="";
  for(int i=0;i<origin.length();i++){
   char character = origin.charAt(i);
   destiny = destiny + translation.get(Character.toString(character));
  }
 return destiny;
 }
}

或者，您可以使用

replaceEach(String text, String[] searchList, String[] replacementList) 
           Replaces all occurrences of Strings within another String.

来自org.apache.commons.lang.StringUtils 。 你可以填充String[]与拉丁字符（但作为String ），然后填充另一个String[]与西里尔字符String ，并使用该功能。

String[] latinCharacters = [] //Populate them
String[] cyrillicCharacters = [] //Populate them

public String translate(String origin){
return replaceEach(origin,latinCharacters,cyrillicCharacters);
}

Answer 2

简单的变体：你用你的字符串调用 translateNameRusToEn 方法

public class TranslateCharactersUtil {

public static final Map<Character, String> alphabetCharacters = new LinkedHashMap<>() {{
    put('а', "a"); put('б', "b"); put('в', "v"); put('г', "g"); put('д', "d");
    put('е', "e"); put('э', "e"); put('ё', "yo"); put('ж', "zh"); put('з', "z");
    put('и', "i"); put('й', "j"); put('к', "k"); put('л', "l"); put('м', "m");
    put('н', "n"); put('о', "o"); put('п', "p"); put('р', "r"); put('с', "s");
    put('т', "t"); put('у', "u"); put('ф', "f"); put('х', "h"); put('ц', "ts");
    put('ч', "ch"); put('ш', "sh"); put('щ', "sch"); put('ь', ""); put('ъ', "");
    put('ы', "y"); put('ю', "yu");put('я', "ya"); put(' ', "-"); put('.', "");
    put(',', "");
}};


public String translateNameRusToEn(String name) {
    StringBuilder stringBuilder = new StringBuilder();
    char[] chars = name.toLowerCase().toCharArray();
    for (char symbol : chars) {
      char[] newSymbols = getFromMap(symbol);
        for (char newSymbol : newSymbols) {
            stringBuilder.append(newSymbol);
        }
    }
    return stringBuilder.toString();
}

private char[] getFromMap(char symbol) {
   return alphabetCharacters.getOrDefault(symbol, "?").toCharArray();
}

}