"""Historical evaluation URL comparison, separate from runtime URL security."""

import re

MARKDOWN_URL_RE = re.compile(r"\[[^\]]*\]\((https?://[^)]+)\)")


def normalize_url(value: str) -> str:
    value = value.strip()
    match = MARKDOWN_URL_RE.search(value)
    if match:
        value = match.group(1)
    return value.rstrip("/")