@antv/util/src/path/parser/is-path-command.ts

> AntV 底层依赖的工具库，不建议在自己业务中使用。

/**
 * Checks if the character is a path command.
 */
export function isPathCommand(code: number) {
  // eslint-disable-next-line no-bitwise -- Impossible to satisfy
  switch (code | 0x20) {
    case 0x6d /* m */:
    case 0x7a /* z */:
    case 0x6c /* l */:
    case 0x68 /* h */:
    case 0x76 /* v */:
    case 0x63 /* c */:
    case 0x73 /* s */:
    case 0x71 /* q */:
    case 0x74 /* t */:
    case 0x61 /* a */:
      // case 0x72/* r */:
      return true;
    default:
      return false;
  }
}