How to modify this REGEX to allow nested Bracket

Question

My regex allow for now spin syntax {spin1|spin2}

  $customContent = preg_replace('/(\{)(.*?)(})/', '{#'.$index.'#}', $customContent, 1);

I would like to allow unlimited nested bracket { {spin1|spin2} {blabla1|blabla2} }

Could you help me to fix this regex please ?

I have tried the below solutions. None worked.

/{([^{}]*)}/

/(?<={)[^}]*(?=})/

/(\{(?:\{.*\}|[^\{])*\})/m

/\{(((?>[^\{\}]+)|(?R))*)\}/x

/\{.*?\}/i

Check out [Bart's answer](http://stackoverflow.com/a/14952740), [Casimir et Hippolyte's answer](http://stackoverflow.com/a/17845034) is also outstanding... — HamZa, Sep 12 '14 at 09:56
Hamza thx you but im not expert event i understand a little bit, im gonna read it but not sure i will done it — user3216977, Sep 12 '14 at 10:04
Recursive patterns are one of the advanced techniques in regex. If you're still a beginner, you might need to practice and read more about regex and common patterns in general. If you're already a bit familiar with regex, you might read [this article](http://www.rexegg.com/regex-recursion.html). — HamZa, Sep 12 '14 at 10:08
@user3216977 still i don't understand your question. Check this out http://regex101.com/r/bR2iB6/4 — Avinash Raj, Sep 12 '14 at 10:33

score -1 · Answer 1 · edited May 02 '23 at 20:28

-1

Unlimited nesting bracket, with unlimited depth, not empty content: (JS syntax)

/(\s*\{[^\{\}]+\}\s*)+/g

-- EDIT --

Is this what you meant?

/[^{}]*{\s*([^{}]+)?}?\s*[^{}]*/g

edited May 02 '23 at 20:28

trincot

answered Sep 12 '14 at 09:32

Davide Rossi

Thx you but both code dont work on my spinner :) i tried also /(\s*\{[^\{\}]+\}\s*)+/ – user3216977 Sep 12 '14 at 09:49
Try this syntax, it works on regex tester http://regex101.com/r/sO9pY0/2 – Davide Rossi Sep 12 '14 at 10:03
Unlimited depth not working: http://regex101.com/r/sO9pY0/3 – RevanProdigalKnight Sep 12 '14 at 13:06
This way unlimited depth working http://regex101.com/r/sO9pY0/4 – Davide Rossi Sep 12 '14 at 15:52
Refined version, skip empty strings made of whitespaces http://regex101.com/r/sO9pY0/5 – Davide Rossi Sep 12 '14 at 16:01

1 Answers1