regex - Splitting around an outer character in Perl. Minimal assumptions within group -


i having hard time adapting answer in this thread following problem:

i split following string:

my $string = "foo{age}, bar{height}. something_else. baz{weight,so='yes',brothers=john.smith}.test{some}"

around outer dots. result should array holding 

("foo{age}, bar{height}",   "foo{weight,parents='yes',brothers=john.smith}",   "test{some}")

i avoid making assumptions what's inside groups inside {}.

how can in perl?

i tried adapting following:

print join(",",split(/,\s*(?=\w+{[a-z,]+})/g, $string));

by replacing what's inside character class [] without success.

update:

the characters not allowed within {} group { or }

since not dealing nested braces, periods want not "immediately" followed closing }. "immediately" means, without opening { in between:

split(/[.]\s*(?![^{]*[}])/g, $string)

alternatively, match parts you're interested in:

(?:[^.{}]|[{][^{}]*[}])+

which can "unrolled" to:

[^.{}]*(?:[{][^{}]*[}][^.{}]*)*

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