How to properly regex nested strings

 

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  • Regexp to check if parentheses are balanced [duplicate] 3 answers

    • Regexs aren't good parsing things that require state. You could, probably, come up with something that works in some limited scenarios, but not a good regex that could handle a generic case.

    You are better off just parsing your string explicitly. Basically, scan the characters one-by-one, and:

  • if the char is { increase the "nesting counter". If nesting counter==1 , start a new group, and skip to next char;

  • if the char is } , decrease the counter. If nesting_counter == 0 , end the current group, and skip to next char;

  • if nesting_counter>0 append the current char to the group and continue;

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