Function parseFocus

packs/step-parser/src/focus-parser.ts:7–19

(focus: string)

type ColumnIndex = number;

export function parseFocus(focus: string) {
  if (!focus) {
    throw new Error("Focus cannot be empty");
  }

  try {
    const parts = focus.split(/,(?![^\[]*\])/g).map(parsePart);
    return fromEntries(flat(parts));
  } catch (error) {
    // TODO enhance error
    throw error;
  }
}

type Part = [LineIndex, true | ColumnIndex[]];