Regex to replace special characters - JAVA

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Regex to replace special characters - JAVA

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#1 by (3 votes)

3

I have this function in Java, quite dirty and a little bad, what it does is pick up a word and replace the 'special' characters, I would like to know another more ergonomic way to do it, if it is with a Regex or with something else.

private String reemplazarCaracteresEspeciales(String palabra) {
        palabra = palabra.replace("ñ", "n");palabra = palabra.replace('|', '_');palabra = palabra.replace(" ", "_");
        palabra = palabra.replace('à', 'a'); palabra = palabra.replace('á', 'a'); palabra = palabra.replace('À', 'A'); palabra = palabra.replace('Á', 'A');
        palabra = palabra.replace('è', 'e'); palabra = palabra.replace('é', 'e'); palabra = palabra.replace('È', 'E'); palabra = palabra.replace('É', 'E');
        palabra = palabra.replace('ì', 'i'); palabra = palabra.replace('í', 'i'); palabra = palabra.replace('Ì', 'I'); palabra = palabra.replace('Í', 'I');
        palabra = palabra.replace('ò', 'o'); palabra = palabra.replace('ó', 'o'); palabra = palabra.replace('Ò', 'O'); palabra = palabra.replace('Ó', 'O');
        palabra = palabra.replace('ù', 'u'); palabra = palabra.replace('ú', 'u'); palabra = palabra.replace('Ù', 'U'); palabra = palabra.replace('Ú', 'U');
        palabra = palabra.replace('\b', '_'); palabra = palabra.replace('/', '_'); palabra = palabra.replace(':', '_'); palabra = palabra.replace('<', '_');
        palabra = palabra.replace('*', '_'); palabra = palabra.replace('?', '_'); palabra = palabra.replace('"', '_'); palabra = palabra.replace('>', '_');

        return palabra;

    }

java regex

asked by Richard Sánchez Coliao 26.09.2018 в 11:54

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1 answer

Retrieve a variable sent to server center svg on a

score 3 · Accepted Answer

You can make two lists. One, with the characters that you do not need, and another, with the characters with which you will replace it. Then you travel with a foreach the word and if you find some letter 'erroneous' susituyes. It would be like this:

private String reemplazarCaracteresEspeciales(String palabra) {
        String[] caracteresMalos = {" ","ñ","|","à","á","À","Á","è","é","È","É","ì","í","Ì","Í","ò","ó","Ò","Ó","ù","ú","Ù","Ú","\b","/",":","<","*","?",">"};
        String[] caracteresBuenos = {"_","n","_","a","a","A","A","e","e","E","E","i","i","I","I","o","o","O","O","u","u","U","U","_","_","_","_","","_","_"};

        for (String letraMala : caracteresMalos) {
            if(palabra.contains(letraMala)){
                palabra = palabra.replace(letraMala,caracteresBuenos[Arrays.asList(caracteresMalos).indexOf(letraMala)]);
            }
        }

        return palabra;

    }