Well that's the problem, it isn't, its a pseudo csv. A simple csv can be done with {awk -F ,} you only have a certain amount of fields separated by ",". field N

Well that's the problem, it isn't, its a pseudo csv. A simple csv can be done with {awk -F ,} you only have a certain amount of fields separated by ",". field N is ".+". This means you don't need a parser, but it also means the format is variable depending on the headers. but you also can create a simple BRE regex, thus having pretty good performance.