java regex transformation

Question

During my searching, I would like a piece of advice :

I'd like to transform this, with replace method :

"labels": "\"label_name\": \"Webapp\","

to :

"labels": ["Webapp"]

in java. In fact, I'm embarrassed with "\" \".

If someone could me suggest me something.

Thanks.

Leonardo Pina · Accepted Answer · 2017-05-26 11:41:24Z

1

replace can't use regex, but you can use replaceAll:

String input = "\"labels\": \"\\\"label_name\\\": \\\"Webapp\\\",\"";

String result = input.replaceAll(
    "(\"\\w+\")\\s*:[^:]+:\\s*\\\\\\\"(\\w+)\\\\\\\",\"", 
    "$1: \\[\"$2\"\\]");

System.out.println(result1); // "labels": ["Webapp"]

edited May 26, 2017 at 11:41

Leonardo Pina

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answered May 26, 2017 at 9:53

Jorn Vernee

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3 Comments

Ale Over a year ago

Hi, thanks mates, It works like a charm ! Please if you have a little time, could you explain me the complete sense of the regex ? I am looking here now : ... . If I understand I will put the description.

Jorn Vernee Over a year ago

@Ale Regex101 does a good job of explaining: regex101.com/r/UVqVYo/1 (see on the right). You just have to un-escape some things. The $1 and $2 are referencing the capture groups from the first argument.

Ale Over a year ago

Wow so cool .. I have just seen the website ! It is marvellous Thanks dude !

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