javascript - 替换两个方向的变音符号

Question

我正在尝试在两个方向上替换变音符号。我设法在一个方向上替换了变音符号。例如，一个字符串有一个 ö (Björn) 而不是 oe (Bjoern) 应该写成。这是我使用的代码:

umlauts = {"ä":"ae", "ü":"ue", "ö":"oe"}

replaceUmlaute = function(s) {
return s.replace(/[äöüß]/g, function($0) {
 return umlauts[$0] })
}

我如何更改代码以使其动态化，以便以 Björn -> Bjoern 或 Bjoern->Björn 两种方式替换变音符号。我需要一个接受字符串并检查变音符号的函数。如果是 ö 则切换到 oe，如果是 oe 则切换到 ö。谢谢!

Answer 1

像这样使用一个函数进行双向操作:

var str = "Bjoern, Joern, und ein Schloss am Woerthersee, Suess, Bjoern, Joern, und ein Schloss am Woerthersee, Suess";
var mapObj = {
   "ae":"ä",
   "oe":"ö",
   "ue":"ü",
   "ss":"ß",
   "ä":"ae",
   "ö":"oe",
   "ü":"ue",
   "ß":"ss"
}, reg1 = /ä|ö|ü|ß/gi, reg2 = /ae|oe|ue|ss/gi;

function conv(str) {
  var reg = /ä|ö|ü|ß/i.test(str)?reg1:reg2;
  return str.replace(reg, function(matched, offset, s){
    return mapObj[matched];
  });
}
str = conv(str);
document.body.innerHTML += '<br/>1:'+str;
str = conv(str);
document.body.innerHTML += '<br/>2:'+str;

最初是 Replace multiple strings with multiple other strings 的副本.

在你的情况下:

var str = "Bjoern, Joern, und ein Schloss am Woerthersee.";
var mapObj1 = {
   "ae":"ä",
   "oe":"ö",
   "ue":"ü",
   "ss":"ß"
};
var mapObj2 = {
   "ä":"ae",
   "ö":"oe",
   "ü":"ue",
   "ß":"ss"
};

str = str.replace(/ae|oe|ue|ss/gi, function(matched){
  return mapObj1[matched];
});
document.write(str)

str = str.replace(/ä|ö|ü|ß/gi, function(matched){
  return mapObj2[matched];
});

document.write('<br/>'+str)