How to replace occurences in string using groups in Swift?

Question

I simply need to replace:

<p>, <div>

with

\n<p>, \n<div>

in string with one single pattern replacing. Is it possible?

let string = "<p>hello</p> my <div>Doggy</div>"
let newString = string.replacingOccurrences(of: "<p>", with: "\n<p>").replacingOccurrences(of: "<div>", with: "\n<div>")

is there a better solution with regex?

that seems to me a static seek-and-replace procedure of 2 values – why would you think you may need a reg-exp for a better solution (whatever that actually means in this context)? — holex
– holex, Commented Sep 19, 2018 at 7:53
I need to replace the following tags: p, div, ul, li, h1, h2 with \n{tag}. — Bartłomiej Semańczyk
– Bartłomiej Semańczyk, Commented Sep 19, 2018 at 7:55

Martin R · Accepted Answer · 2018-09-19 08:02:41Z

5

You can do a regular expression search, with a template in the replacement string:

let string = "<p>hello</p> my <div>Doggy</div>"
let newString = string.replacingOccurrences(of: "<p>|<div>", with: "\n$0", options: .regularExpression)

For each match, the $0 template is replaced by what actually matched the pattern.

answered Sep 19, 2018 at 8:02

Martin R

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1 Comment

Bartłomiej Semańczyk Over a year ago

As always, you are genius;)

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