Regex Pattern Match toString() in Java

I'm looking for some help with matching a pattern for a string (tostring() generated):

MyObject{nothingSpecial='Word1', secretData='Word2', privateEmail='Word3'}

I wanted a pattern that can match on the Word1, Word3. So I came up with:

(?x)(["]?(nothingSpecial|secretData)["]?\s*[:=]{1}\s*["]?)(?:[^"\n,]+)

That worked but now I need to step it up so I can match on the oject name too e.g. MyObject

Examples:

1. Don't match since it's not MyObject: YourObject{nothingSpecial='Word1', secretData='Word2', privateEmail='Word3'}

2. Match to MyObject so look for nothingSpecial & privateEmail: MyObject { nothingSpecial='Word1', secretData='Word2', privateEmail='Word3'}

3. Don't match since it's not MyObject: TheirObject{nothingSpecial='Word1', secretData='Word2', privateEmail='Word3'}

Truthfully, I've never been great a RegEx so any help would be very much appreciated.

To match the 3 words, you could make use if the \G anchor

(?:\b(MyObject)\h*\{\h*(?=[^{}]*})|\G(?!^))(?:(?:nothingSpecial|privateEmail)='([^'\n,]+)'|[^\s=]+='[^'\n,]*')(?:,\h*)?

Regex demo | Java demo

• (?: Non capture group
  • \b(MyObject)\h*\{\h* Capture MyObject in group 1 and match {
  • (?=[^{}]*})
  • | Or
  • \G(?!^) Assert the position at the end of the previous match
• ) Close the non capture group
• (?: Non capture group
  • (?:nothingSpecial|privateEmail)= Match either nothingSpecial or privateEmail followed by =
  • '([^'\n,]+)' Capture group 2 Match any char except ' a newline or comma between single quotes
  • | Or
  • [^\s=]+='[^'\n,]*' Match a key value pair with single quotes
• ) Close non capture group
• (?:,\h*)? Optionally match a comma and horizontal whitespace chars