vb.net - Replace "," to the word "and" but avoid replace "and" inside the parenthesis -


this question exact duplicate of:

sample:

my string = englishgrammar(verb,noun , adjectives),math(algebra,trigometric , geometric), science(physics,chemistry , ecology)

i want output this: englishgrammar(verb,noun , adjectives),math(algebra,trigometric , geometric) , science(physics,chemistry , ecology)

i have no idea how can fix this? using vb.net

so want replace last occurrence of string new string ..

private function replacelastoccurenceof(s string, texttoreplace string, newtext string) string     dim lastcommaindex integer = s.lastindexof(texttoreplace)     return s.remove(lastcommaindex, 2).insert(lastcommaindex, newtext) end function

and use it

strtest = replacelastoccurenceof(strtest, "),", ") and")

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