Letter Replacer One Character Trouble

This is a continuation to the following question: customizable letter replacer I have a code that will replace letters, you can type whatever you want for a certain letter. For exa

Solution 1:

If you enter "chicken" and "nuggets" in the boxes to the right of "1," you get this regular expression:

/a|b|c|d|A|B|C|D|chicken|/g

Therefore, it will try to match anything containing an a, b, c, d, A, B, C, D, or chicken.

Since c comes before chicken in the regular expression's list, and chicken begins with a c, the word chicken will never bet matched.

What you should do is place the words before the letters in the regular expression. You can do that like this:

var re = newRegExp(
  Object.keys(mapObj)
    .sort(function(a, b) {
      return b.length - a.length;
    })
    .join("|"),
  "g"
);

The sort function changes the order of the keys so that the longest words come first.

The regular expression will then become:

/chicken|a|b|c|d|A|B|C|D|/g

Snippet

// My globalsvar output = $("#output");
var extra_customizing = $("#extra-customizing");

String.prototype.cap = function () { // needed or demonstrationreturnthis.charAt(0).toUpperCase() + this.slice(1);
};

functiontrans() {
    var input = $("#input");
    var value = input.val();

    // Retriving #customizing/*
      I retrieve the values of the input boxes, in order to replace them later
    */// needed or demonstrationvar IDa = $("#a").val();
    var IDb = $("#b").val();
    var IDc = $("#c").val();
    var IDd = $("#d").val();

    // Retriving #extra-customizing/*
      Using the same logic as the other ones
    */var ID_ax = $("#Ax").val(); // inputvar ID_ay = $("#Ay").val(); // outputvar ID_bx = $("#Bx").val(); // inputvar ID_by = $("#By").val(); // outputvar ID_cx = $("#Cx").val(); // inputvar ID_cy = $("#Cy").val(); // output/*
      If the user inputs something to replace, they MUST have something to to replace it with(may change later)
    */if (ID_ax != "" && ID_ax == "") {
        alert("You have not insterted a value in #1");
    }
    if (ID_bx != "" && ID_bx == "") {
        alert("You have not insterted a value in #2");
    }
    if (ID_cx != "" && ID_cx == "") {
        alert("You have not insterted a value in #3");
    }

    // Settingvar mapObj = {
        // Setting #customizing/*
          I first select what the user would write, and the what it should be replaced with
        */a: IDa,
        b: IDb,
        c: IDc,
        d: IDd,
        A: IDa.cap(),
        B: IDb.cap(),
        C: IDc.cap(),
        D: IDd.cap()
    };
    
    // Extra customizing
    mapObj[ID_ax] = ID_ay;
    mapObj[ID_bx] = ID_by;
    mapObj[ID_cx] = ID_cy;
    
    // Translating/*
      Below is the code used to replace letters
    */var re = newRegExp(
      Object.keys(mapObj)
        .sort(function(a, b) {
          return b.length - a.length;
        })
        .join("|"),
      "g"
    );
    console.log(re);
    value = value.replace(re, function (matched) {
        return mapObj[matched];
    });
    output.val(value);
}

body {
  background-color: #cccccc;
  color: #444444;
}

hr {
  width: 60%;
  background-color: #999999;
  border: none;
  padding: 0;
  margin: 0 auto 0 auto;
}

#customizing {
  font-family: "courier";
  width: calc(50em + 195px);
  width: -moz-calc(50em + 195px);
  margin: auto;
  font-size: .8em;
}

#extra-customizing {
  font-family: "courier";
  width: calc(55em + 282px);
  width: -moz-calc(55em + 282px);
  margin: auto;
  font-size: .8em;
  margin-top: .5em;
  padding-top: .5em;
  padding-left: .5em;
  padding-right: .5em;
  border-radius: 2px;
}

#customizinginput, #extra-customizinginput {
  font-family: "courier";
  width: 3em;
  margin-left: 5px;
  margin-right: 10px;
  font-family: "courier";
  text-align: center;
  font-size: .8em;
  padding-bottom: .3em;
  padding-top: .2em;
  background-color: #111111;
  color: #aaaaaa;
  border: none;
  border-radius: 2px;
  margin-bottom: 1em;
}

#extra-customizinginput {
  margin-right: 15px;
}

#translator {
  width: 100%;
}


#extra-customize {
  width: 320px;
  margin: .2em auto 1em auto;
}

#extra-customizeinput {
  border: none;
  padding: 0;
  margin: 0;
  width: 1em;
  height: .9em;
}

#input {
  width: 40%;
  height: 40vh;
  float: left;
  padding: .43%;
  margin: 0;
  margin-left: 5%;
  border: none;
  background-color: #111111;
  color: #aaaaaa;
  border-radius: 2px;
  font-size: 1em;
  outline: none;
  resize: none;
  overflow: auto;
}

#inputB {
  font-family: "courier";
  width: 8.28%;
  padding: 0;
  margin: 0;
  padding-top: 3px;
  padding-bottom: 3px;
  border: none;
  background-color: #1f1f1f;
  color: #aaaaaa;
  border-radius: 2px;
  font-size: .8em;
  resize: none;
  cursor: pointer;
  outline: none;
}

#inputB:hover {
  background-color: #aaaaaa;
  color: #1f1f1f;
}

#output {
  width: 40%;
  height: 40vh;
  float: right;
  padding: .43%;
  margin: 0;
  margin-right: 5%;
  border: none;
  background-color: #111111;
  color: #aaaaaa;
  border-radius: 2px;
  font-size: 1em;
  outline: none;
  resize: none;
  overflow: auto;
}

</div><scriptsrc="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script><divid="customizing">
  a<inputtype="text"id="a"value="a"maxlenght="3">
  b<inputtype="text"id="b"value="b"maxlenght="3">
  c<inputtype="text"id="c"value="c"maxlenght="3">
  d<inputtype="text"id="d"value="d"maxlenght="3"></div><hr><divid="extra-customizing">
  1<inputtype="text"id="Ax"value=""maxlength="7">:<inputtype="text"id="Ay"value=""maxlength="7">
  2<inputtype="text"id="Bx"value=""maxlength="7">:<inputtype="text"id="By"value=""maxlength="7">
  3<inputtype="text"id="Cx"value=""maxlength="7">:<inputtype="text"id="Cy"value=""maxlength="7"></div><divid="translator"><textareaid="input"></textarea><inputtype="button"value="Translate"id="inputB"onclick="trans()"><textareaid="output"readonly></textarea></div>