export function cm_start_end(
selection
): { start_line: number; end_line: number } {
const { head, anchor } = selection;
let start = head;
let end = anchor;
if (
end.line <= start.line ||
(end.line === start.line && end.ch <= start.ch)
) {
[start, end] = [end, start];
}
const start_line = start.line;
let end_line = end.ch > 0 ? end.line : end.line - 1;
if (end_line < start_line) {
end_line = start_line;
}
return { start_line, end_line };
}
