from __future__ import annotations


def truncate_middle(text: str, limit: int, marker: str = "\n… middle omitted …\n") -> str:
    if limit <= 0:
        return ""
    if len(text) <= limit:
        return text
    if limit <= len(marker):
        return text[:limit]
    remaining = limit - len(marker)
    head = (remaining + 1) // 2
    tail = remaining - head
    suffix = text[-tail:] if tail else ""
    return text[:head] + marker + suffix