Function parse_variables

src/dotenv/variables.py:70–86

(value: str)

def parse_variables(value: str) -> Iterator[Atom]:
    cursor = 0

    for match in _posix_variable.finditer(value):
        (start, end) = match.span()
        name = match["name"]
        default = match["default"]

        if start > cursor:
            yield Literal(value=value[cursor:start])

        yield Variable(name=name, default=default)
        cursor = end

    length = len(value)
    if cursor < length:
        yield Literal(value=value[cursor:length])