break a long string into several lines in Powershell

Question

I try to do substring against 1 long string and then want to put each sub string into a new line. For example, if I have a long string "1pxxxx2pxxx1pyyyyy", the result would be 3 lines as below.

1pxxxx
2pxxx
1pyyyyy

In my case, 1p and 2p are pre-defined keyword. I really appreciate any helps. Thank you.

What would be the "rule" where to split your string into pieces? What have you tried so far? You know you are expected to make an own attempt to solve your problem. — Olaf
– Olaf, Commented May 22, 2020 at 1:18
To achieve my goal, I tried to combine substring and carriage return but had no luck. I'll post my query next time. — Iverson Wang
– Iverson Wang, Commented May 22, 2020 at 3:23

mklement0 · Accepted Answer · 2020-05-22 01:40:06Z

3

Use -split, the string-splitting operator, with a positive lookahead assertion (more details here):

PS> '1pxxxx2pxxx1pyyyyy' -split '(?=1p|2p)' -ne ''
1pxxxx
2pxxx
1pyyyyy

answered May 22, 2020 at 1:40

mklement0

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