contrib/tcsh/ed.refresh.c

562     Char  *ofd, *ols, *oe, *nfd, *nls, *ne;
571     ofd = o;
584     while (ofd < o) {
609     if (*ofd == '\0' && *nfd == '\0') {
619     while ((o > ofd) && (n > nfd) && (*--o == *--n))
641      * case 1: insert: scan from nfd to nls looking for *ofd
643     if (*ofd) {
644 	for (c = *ofd, n = nfd; n < nls; n++) {
646 		for (o = ofd, p = n; p < nls && o < ols && *o == *p; o++, p++)
655 		    osb = ofd;
663      * case 2: delete: scan from ofd to ols looking for *nfd
666 	for (c = *nfd, o = ofd; o < ols; o++) {
674 		if (((ose - osb) < (p - o)) && (2 * (p - o) > o - ofd)) {
711     fx = (int) ((nsb - nfd) - (osb - ofd));
729 	if ((ols - ofd) < (nls - nfd)) {
745 	if ((ols - ofd) > (nls - nfd)) {
767     fx = (int) ((nsb - nfd) - (osb - ofd));
772     reprintf("ofd %d, osb %d, ose %d, ols %d, oe %d\n",
773 	    ofd - old, osb - old, ose - old, ols - old, oe - old);
780     dprintstr("old-ofd", old, ofd);
782     dprintstr("ofd-osb", ofd, osb);
802      * /old                  /ofd    /osb               /ose    /ols     /oe
810      * nsb, and the chars between ofd and osb, and is thus the number of
819      * amount ((nsb-nfd) - (osb-ofd)) won't push the last useful character
862 		str_insert(old, (int) (ofd - old), TermH, nfd, fx);
868 	    str_cp(ofd + fx, nfd + fx, (int) ((nsb - nfd) - fx));
875 	    str_cp(ofd, nfd, (int) (nsb - nfd));
884 	reprintf("first diff delete at %d...\r\n", ofd - old);
889 	MoveToChar(ofd - old);
907 		str_delete(old, (int) (ofd - old), TermH, -fx);
913 	    str_cp(ofd, nfd, (int) (nsb - nfd));
1004     if ((nsb != nfd) && (osb - ofd) <= (nsb - nfd) && (fx == 0)) {
1022 	    fx = (int) ((nsb - nfd) - (osb - ofd));
1032 		str_insert(old, (int) (ofd - old), TermH, nfd, fx);
1039 	    str_cp(ofd + fx, nfd + fx, (int) ((nsb - nfd) - fx));
1046 	    str_cp(ofd, nfd, (int) (nsb - nfd));