Function promptMultipleSelect

cli/unstable_prompt_multiple_select.ts:109–170

(
  message: string,
  values: PromptEntry<V>[],
  options: PromptMultipleSelectOptions = {},
)

 * ```
 */
export function promptMultipleSelect<V = undefined>(
  message: string,
  values: PromptEntry<V>[],
  options: PromptMultipleSelectOptions = {},
): PromptEntry<V>[] | null {
  if (!Deno.stdin.isTerminal()) return null;

  const selectedAbsoluteIndexes = new Set<number>();

  handlePromptSelect(
    message,
    options.indicator ?? "❯",
    values,
    options.clear,
    options.visibleLines,
    options.fitToRemainingHeight,
    (_active, absoluteIndex) => {
      const checked = selectedAbsoluteIndexes.has(absoluteIndex);
      return checked ? CHECKED : UNCHECKED;
    },
    (str, absoluteIndex, {
      etx,
      up,
      down,
      remove,
      inputStr,
    }) => {
      switch (str) {
        case ETX:
          return etx();
        case ARROW_UP:
          up();
          break;
        case ARROW_DOWN:
          down();
          break;
        case CR:
          return true;
        case " ": {
          if (absoluteIndex !== undefined) {
            if (selectedAbsoluteIndexes.has(absoluteIndex)) {
              selectedAbsoluteIndexes.delete(absoluteIndex);
            } else {
              selectedAbsoluteIndexes.add(absoluteIndex);
            }
          }
          break;
        }
        case DELETE:
          remove();
          break;
        default:
          inputStr();
          break;
      }

      return false;
    },