contrib/tcsh/ed.refresh.c

564     int     fx, sx;
708      * fx is the number of characters we need to insert/delete: in the
711     fx = (int) ((nsb - nfd) - (osb - ofd));
719 	if (fx > 0) {
735 	if (fx < 0) {
765      * Now that we are done with pragmatics we recompute fx, sx
767     fx = (int) ((nsb - nfd) - (osb - ofd));
809      * fx is the difference in length between the the chars between nfd and
838     if ((nsb != nfd) && fx > 0 && ((p - old) + fx < TermH)) {
854 	     * insert fx chars of new starting at nfd
856 	    if (fx > 0) {
861 		Insert_write(nfd, fx);
862 		str_insert(old, (int) (ofd - old), TermH, nfd, fx);
865 	     * write (nsb-nfd) - fx chars of new starting at (nfd + fx)
867 	    so_write(nfd + fx, (nsb - nfd) - fx);
868 	    str_cp(ofd + fx, nfd + fx, (int) ((nsb - nfd) - fx));
882     else if (fx < 0) {
898 	     * fx is less than zero *always* here but we check for code
901 	    if (fx < 0) {
906 		DeleteChars(-fx);
907 		str_delete(old, (int) (ofd - old), TermH, -fx);
942 	fx = 0;
946 	reprintf("second diff delete at %d...\r\n", (ose - old) + fx);
952 	 * fx is the number of characters inserted (+) or deleted (-)
955 	MoveToChar((ose - old) + fx);
980 	    int olen = (int) (oe - old + fx);
1004     if ((nsb != nfd) && (osb - ofd) <= (nsb - nfd) && (fx == 0)) {
1018 	     * We have to recalculate fx here because we set it
1022 	    fx = (int) ((nsb - nfd) - (osb - ofd));
1023 	    if (fx > 0) {
1025 		 * insert fx chars of new starting at nfd
1031 		Insert_write(nfd, fx);
1032 		str_insert(old, (int) (ofd - old), TermH, nfd, fx);
1036 	     * write (nsb-nfd) - fx chars of new starting at (nfd + fx)
1038 	    so_write(nfd + fx, (nsb - nfd) - fx);
1039 	    str_cp(ofd + fx, nfd + fx, (int) ((nsb - nfd) - fx));