rx_scm           2677 src/extlib.c     ScmObj rx_scm;
rx_scm           2680 src/extlib.c     rx_scm = SCM_ARGREF(0);
rx_scm           2681 src/extlib.c     if (!SCM_REGEXPP(rx_scm)) Scm_Error("regexp required, but got %S", rx_scm);
rx_scm           2682 src/extlib.c     rx = SCM_REGEXP(rx_scm);