/*- * 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[] = "@(#)ex_at.c 8.1 (Berkeley) 6/9/93"; #endif /* not lint */ #include <sys/types.h> #include <ctype.h> #include <stdlib.h> #include <string.h> #include "vi.h" #include "excmd.h" /* * ex_at -- :@[buffer] * Execute the contents of the buffer. */ int ex_at(sp, ep, cmdp) SCR *sp; EXF *ep; EXCMDARG *cmdp; { CB *cb; TEXT *tp; int buffer, rval; if (cmdp->buffer == OOBCB) { if (sp->exat_lbuf == OOBCB) { msgq(sp, M_ERR, "No previous buffer to execute."); return (1); } buffer = sp->exat_lbuf; } else buffer = cmdp->buffer; CBNAME(sp, buffer, cb); CBEMPTY(sp, buffer, cb); if (sp->exat_recurse == 0) memset(sp->exat_stack, 0, sizeof(sp->exat_stack)); else if (sp->exat_stack[buffer]) { msgq(sp, M_ERR, "Buffer %s already occurs in this command.", charname(sp, buffer)); return (1); } sp->exat_stack[buffer] = 1; ++sp->exat_recurse; for (tp = cb->txthdr.next; tp != (TEXT *)&cb->txthdr; tp = tp->next) { if (rval = ex_cstring(sp, ep, tp->lb, tp->len)) break; if (F_ISSET(sp, S_MAJOR_CHANGE)) break; } --sp->exat_recurse; return (0); }