Function cell_name_to_coordinates 

pub fn cell_name_to_coordinates(cell: &str) -> Result<(u32, u32), Error>

Parse an A1-style cell reference into (col, row) coordinates (both 1-based).

Absolute-reference markers ($) are stripped before parsing.

Examples

use sheetkit_core::utils::cell_ref::cell_name_to_coordinates;

assert_eq!(cell_name_to_coordinates("A1").unwrap(), (1, 1));
assert_eq!(cell_name_to_coordinates("$B$2").unwrap(), (2, 2));
assert_eq!(cell_name_to_coordinates("AA100").unwrap(), (27, 100));