Parsing an array inside of a string to string array

Question

I need your help parsing a string that contains an array inside to string array, is it posible? Currently I'm using split to do it but I think that is not the correct way..

Here an example of what my string contains:

["SR RODRIGUEZ SE LO LLEVA  ,,, PIL  4_45  ","COMENTARIOS"]

I hope you can help me guys, I've been stuck with this problem for an entire day..

String.split() is actually probably the right way to do it. If you need more help, please show some examples of inputs and expected outputs. — Arnaud Denoyelle
– Arnaud Denoyelle, Commented Jul 27, 2018 at 15:10
This String myString = "["SR RODRIGUEZ SE LO LLEVA ,,, PIL 4_45 ","COMENTARIOS"]"; to this String[] array= {"SR RODRIGUEZ SE LO LLEVA ,,, PIL 4_45 ", "COMENTARIOS"}; System.out.println( array[0] ); System.out.println( array[1] ); — Mauricio Nava
– Mauricio Nava, Commented Jul 27, 2018 at 15:14
Given example at your comment is incorrect, it could not even compile. Provide the working example data set. — Emre Savcı
– Emre Savcı, Commented Jul 27, 2018 at 15:16
I'm consuming a WS that returns me a String that contains this: ["SR RODRIGUEZ SE LO LLEVA ,,, PIL 4_45 ","COMENTARIOS"] I want to cast it to String array or something else that allows me to access to every String — Mauricio Nava
– Mauricio Nava, Commented Jul 27, 2018 at 15:21

Emre Savcı · Accepted Answer · 2018-07-27 15:47:51Z

1

You can achive what you desire with below :

    String myString = "[\"SR RODRIGUEZ SE LO LLEVA ,,, PIL 4_45 \",\"COMENTARIOS\"]";
    Pattern pattern = Pattern.compile("\"(?:\\\\.|[^\"\\\\])*\"");
    Matcher matcher = pattern.matcher(myString);

    List<String> myList = new ArrayList();

    while (matcher.find()) {
        myList.add(matcher.group());
    }

    myList.stream().forEach(System.out::println);

Output :

"SR RODRIGUEZ SE LO LLEVA ,,, PIL 4_45 "
"COMENTARIOS"

answered Jul 27, 2018 at 15:47

Emre Savcı

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6 Comments

Marcos Vasconcelos Over a year ago

Just to know, this solution works if theres doublequotes (escaped) inside a string?

Emre Savcı Over a year ago

No, if quotes not escaped, code is not even compile. You can not write a string like String myStr = "["test"]"; If you read your string from external source (file, network etc.) it works. Excepted answer escaped quotes too.

Marcos Vasconcelos Over a year ago

I mean this: ["\"value \"\"", "other \" "] note that it supposed to be two values, you regex capture it correctly?

Emre Savcı Over a year ago

I paste it into a file and read it from file with String myString = Files.readAllLines(Paths.get("mystr.txt")).get(0); It gives the output : "\"value \"\"" and "other \" " . I dont know is that what u need?

Marcos Vasconcelos Over a year ago

Oh yes, I just wanted to know if it got the escaped quotes or splited it +1 mate, idk regex

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Golam Mazid Sajib · Accepted Answer · 2018-07-27 15:29:24Z

0

If you want string array of double quoted string. Look at this:

String str = "\"SR RODRIGUEZ SE LO LLEVA  ,,, PIL  4_45  \",\"COMENTARIOS\",\"abc\"";
    String res[] = str.split(",(?=(?:[^\"]*\"[^\"]*\")*[^\"]*$)");
    Arrays.stream(res).forEach(st -> System.out.println(st));

answered Jul 27, 2018 at 15:29

Golam Mazid Sajib

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1 Comment

Marcos Vasconcelos Over a year ago

Just to know, this solution works if theres doublequotes (escaped) inside a string?

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