/*- * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef lint static char sccsid[] = "@(#)v_z.c 8.1 (Berkeley) 6/9/93"; #endif /* not lint */ #include <sys/types.h> #include "vi.h" #include "vcmd.h" /* * v_z -- [count]z[count][.-<CR>] * Move the screen. */ int v_z(sp, ep, vp, fm, tm, rp) SCR *sp; EXF *ep; VICMDARG *vp; MARK *fm, *tm, *rp; { recno_t last, lno; /* * The first count is the line to use. If the value doesn't * exist, use the last line. */ if (F_ISSET(vp, VC_C1SET)) { lno = vp->count; if (file_lline(sp, ep, &last)) return (1); if (lno > last) lno = last; } else lno = fm->lno; /* The second count is the window size. */ if (F_ISSET(vp, VC_C2SET) && set_window_size(sp, vp->count2)) return (1); switch(vp->character) { case '.': if (sp->s_fill(sp, ep, lno, P_MIDDLE)) return (1); break; case '-': if (sp->s_fill(sp, ep, lno, P_BOTTOM)) return (1); break; default: if (sp->special[vp->character] == K_CR) { if (sp->s_fill(sp, ep, lno, P_TOP)) return (1); break; } msgq(sp, M_ERR, "usage: %s.", vp->kp->usage); return (1); } /* If the map changes, have to redraw the entire screen. */ F_SET(sp, S_REDRAW); rp->lno = lno; rp->cno = fm->cno; return (0); }