How to break a string into an array

Question

I have a problem with parsing text, i have transcript of interview and i have a tag which channel is talking (ch1,ch2). And i need to break it into array and i could to search in which channel someone tells specific word.

For example this is a part of interview

<ch1>Hello</ch1> <ch2>Hello</ch2> <ch1>How are you</ch1><ch2>I'm fine</ch2>

This is a string

String text = "<ch1>Hello</ch1> <ch2>Hello</ch2> <ch2>How are you</ch2>
<ch2>I'm fine</ch2>";

And i want output

 String output[] = {<ch1>Hello</ch1>,<ch2>Hello</ch2>,....}

Thanks for help.

jsoup.org/cookbook/input/parse-body-fragment

Maroun
– Maroun

2015-01-06 12:14:59 +00:00
Commented Jan 6, 2015 at 12:14 — Maroun
– Maroun, Commented Jan 6, 2015 at 12:14

tobias_k · Accepted Answer · 2015-01-06 12:45:08Z

3

You can use a regular expression with lookahead and lookbehind:

String dialogue = "<ch1>Hello</ch1> <ch2>Hello</ch2> <ch1>How are you</ch1><ch2>I'm fine</ch2>";
String[] statements = dialogue.split("(?<=</ch[12]>)\\s*(?=<ch[12]>)");
System.out.println(Arrays.asList(statements));

Output:

[<ch1>Hello</ch1>, <ch2>Hello</ch2>, <ch1>How are you</ch1>, <ch2>I'm fine</ch2>]

It's a bit hard to read due to the many < and >, but the pattern is like this:

split("(?<=endOfLastPart)inBetween(?=startOfNextPart)")

edited Jan 6, 2015 at 12:45

answered Jan 6, 2015 at 12:32

tobias_k

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Comments

Rohith K · Accepted Answer · 2015-01-06 12:18:53Z

0

text.split("<ch").join("-<ch").split("-").

Can be any string instead of "-" which can be used.

answered Jan 6, 2015 at 12:18

Rohith K

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1 Comment

tobias_k Over a year ago

What if there are other - in the text? Better use a much more unique separator character (or character sequence).

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