Java Split String Regex

Question

Here is a String, I want to split the string such that the symbols and "words" are separate. For example:

String s = "/xyz/abc[bcd(text(),\"string\")]";

I want to have a String array like

String[] result = {"/","xyz","/","abc","[","bcd","(","text","(",")",",","\"","string","\"",")","]"}

How can I do this by using regular expression?

anubhava · Accepted Answer · 2014-03-12 04:29:08Z

3

This should work:

String str = "/xyz/abc[bcd(text(),\"string\")]";

String[] arr = str.split("(?<=\\G(?>\\w+|\\W))\\s*");

This gives:

["/", "xyz", "/", "abc", "[", "bcd", "(", "text", "(", ")", ",", """, "string", """, ")", "]"]

Explanation:

Regex is using \G which matches from end of last matched position
(?>..) is an atomic group (More details: http://www.regular-expressions.info/atomic.html)

edited Mar 12, 2014 at 4:29

answered Mar 12, 2014 at 4:10

anubhava

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5 Comments

CSnerd Over a year ago

Thank you! What if string has whitespace, I wanna omit this white space while splitting this string? for example String s = "/xyz/abc[ bcd(text(),\"string\")]";

saladinxu Over a year ago

@anubhava nice answer could you explain a bit about what you're trying to do here?

anubhava Over a year ago

@CSnerd: Hmm so you're chancing the nature of the problem. I am adding my explanation first then I will check whether modified question can be solved this way.

CSnerd Over a year ago

@anubhava I find a way I can use s = s.replaceAll(" ", ""); If modification of answer needs so much work. it is fine.

anubhava Over a year ago

Glad to know. Also see updated code to discard spaced.

Sebastian Mocny · Accepted Answer · 2014-03-12 04:13:50Z

0

User anubhava has answered your question, but in the future http://regexpal.com/ is very helpful when regexing. I use it all the time as a tool, though there are many options.

Helps with trial and error :)

Good luck, happy coding

answered Mar 12, 2014 at 4:13

Sebastian Mocny

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