Sobes.tech
Junior — Senior

Efficient management of parser chains for large JSON strings

livecode

Task condition

It is necessary to propose an approach to speed up the chain of parsers when one of them (for example, a JSON parser) becomes a bottleneck due to the size of the input data. Parsers are called sequentially, and it is important to stop further processing as soon as one of them successfully returns a result.


def main_parse(data: str, parsers: List[Parser]):
    for parser in parsers:
        value = parser.parse(data)
        if value:
            return value

Describe how to reorganize calls, cache results, or use preliminary checks to avoid unnecessary costly JSON parsing when lighter parsers have already found the required value.