Function parse_hl_lines

markdown/extensions/codehilite.py:42–54

Support our syntax for emphasizing certain lines of code. `expr` should be like '1 2' to emphasize lines 1 and 2 of a code block. Returns a list of integers, the line numbers to emphasize.

(expr: str)

def parse_hl_lines(expr: str) -> list[int]:
    """Support our syntax for emphasizing certain lines of code.

    `expr` should be like '1 2' to emphasize lines 1 and 2 of a code block.
    Returns a list of integers, the line numbers to emphasize.
    """
    if not expr:
        return []

    try:
        return list(map(int, expr.split()))
    except ValueError:  # pragma: no cover
        return []


# ------------------ The Main CodeHilite Class ----------------------