Splitting a string after max X characters and preserve whole words

Question

I would like to split a String using regex just like in this example, but in my case I want that each words in a new line will not exceed X characters.

So the following code doesn't do the trick since it finds every instance of at least X non-newline characters (and not max X).

s = s.replaceAll("(.{" + x + ",}?)\\s+", "$1\n");

I can easily do this using other methods, but I would like to do it using a REGEX

Have you tried: (.{0, " + x + "}) instead?

assylias
– assylias

2013-07-03 10:24:21 +00:00
Commented Jul 3, 2013 at 10:24 — assylias
– assylias, Commented Jul 3, 2013 at 10:24
Tried it, but it doesn't work for certain scenarios

GarnerK
– GarnerK

2013-07-04 10:53:49 +00:00
Commented Jul 4, 2013 at 10:53 — GarnerK
– GarnerK, Commented Jul 4, 2013 at 10:53

Prince John Wesley · Accepted Answer · 2013-07-03 10:46:49Z

3

Try this:

s = s.replaceAll("(.{0,"+ x+"})\\b", "$1\n");

or the trimmed version,

s = s.replaceAll("(?:\\s*)(.{1,"+ x +"})(?:\\s+|\\s*$)", "$1\n")

edited Jul 3, 2013 at 10:46

answered Jul 3, 2013 at 10:31

Prince John Wesley

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