diff options
Diffstat (limited to 'usr.bin/vi/nex/ex_bang.c')
| -rw-r--r-- | usr.bin/vi/nex/ex_bang.c | 192 |
1 files changed, 0 insertions, 192 deletions
diff --git a/usr.bin/vi/nex/ex_bang.c b/usr.bin/vi/nex/ex_bang.c deleted file mode 100644 index 4f7222b4e78cd..0000000000000 --- a/usr.bin/vi/nex/ex_bang.c +++ /dev/null @@ -1,192 +0,0 @@ -/*- - * 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_bang.c 8.22 (Berkeley) 12/29/93"; -#endif /* not lint */ - -#include <sys/types.h> - -#include <errno.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -#include "vi.h" -#include "excmd.h" -#include "sex/sex_screen.h" - -/* - * ex_bang -- :[line [,line]] ! command - * - * Pass the rest of the line after the ! character to the program named by - * the O_SHELL option. - * - * Historical vi did NOT do shell expansion on the arguments before passing - * them, only file name expansion. This means that the O_SHELL program got - * "$t" as an argument if that is what the user entered. Also, there's a - * special expansion done for the bang command. Any exclamation points in - * the user's argument are replaced by the last, expanded ! command. - * - * There's some fairly amazing slop in this routine to make the different - * ways of getting here display the right things. It took a long time to - * get get right (wrong?), so be careful. - */ -int -ex_bang(sp, ep, cmdp) - SCR *sp; - EXF *ep; - EXCMDARG *cmdp; -{ - enum filtertype ftype; - ARGS *ap; - EX_PRIVATE *exp; - MARK rm; - recno_t lno; - size_t blen; - int rval; - char *bp, *msg; - - - ap = cmdp->argv[0]; - if (ap->len == 0) { - msgq(sp, M_ERR, "Usage: %s", cmdp->cmd->usage); - return (1); - } - - /* Swap commands. */ - exp = EXP(sp); - if (exp->lastbcomm != NULL) - FREE(exp->lastbcomm, strlen(exp->lastbcomm) + 1); - if ((exp->lastbcomm = strdup(ap->bp)) == NULL) { - msgq(sp, M_SYSERR, NULL); - return (1); - } - - /* - * If the command was modified by the expansion, we redisplay it. - * Redisplaying it in vi mode is tricky, and handled separately - * in each case below. If we're in ex mode, it's easy, so we just - * do it here. - */ - bp = NULL; - if (F_ISSET(cmdp, E_MODIFY)) { - if (IN_EX_MODE(sp)) { - (void)ex_printf(EXCOOKIE, "!%s\n", ap->bp); - (void)ex_fflush(EXCOOKIE); - } - /* - * Vi: Display the command if modified. Historic vi displayed - * the command if it was modified due to file name and/or bang - * expansion. If piping lines, it was immediately overwritten - * by any error or line change reporting. We don't the user to - * have to page through the responses, so we only post it until - * it's erased by something else. Otherwise, pass it on to the - * ex_exec_proc routine to display after the screen has been - * cleaned up. - */ - if (IN_VI_MODE(sp)) { - GET_SPACE_RET(sp, bp, blen, ap->len + 2); - bp[0] = '!'; - memmove(bp + 1, ap->bp, ap->len + 1); - } - } - - /* - * If addresses were specified, pipe lines from the file through - * the command. - */ - if (cmdp->addrcnt != 0) { - if (bp != NULL) { - (void)sp->s_busy(sp, bp); - FREE_SPACE(sp, bp, blen); - } - /* - * !!! - * Historical vi permitted "!!" in an empty file. When it - * happens, we get called with two addresses of 1,1 and a - * bad attitude. - */ - ftype = FILTER; - if (cmdp->addr1.lno == 1 && cmdp->addr2.lno == 1) { - if (file_lline(sp, ep, &lno)) - return (1); - if (lno == 0) { - cmdp->addr1.lno = cmdp->addr2.lno = 0; - ftype = FILTER_READ; - } - } - if (filtercmd(sp, ep, - &cmdp->addr1, &cmdp->addr2, &rm, ap->bp, ftype)) - return (1); - sp->lno = rm.lno; - F_SET(exp, EX_AUTOPRINT); - return (0); - } - - /* - * If no addresses were specified, run the command. If the file - * has been modified and autowrite is set, write the file back. - * If the file has been modified, autowrite is not set and the - * warn option is set, tell the user about the file. - */ - msg = "\n"; - if (F_ISSET(ep, F_MODIFIED)) - if (O_ISSET(sp, O_AUTOWRITE)) { - if (file_write(sp, ep, NULL, NULL, NULL, FS_ALL)) { - rval = 1; - goto ret; - } - } else if (O_ISSET(sp, O_WARN)) - if (IN_VI_MODE(sp) && F_ISSET(cmdp, E_MODIFY)) - msg = "\nFile modified since last write.\n"; - else - msg = "File modified since last write.\n"; - - /* Run the command. */ - rval = ex_exec_proc(sp, ap->bp, bp, msg); - - /* Ex terminates with a bang. */ - if (IN_EX_MODE(sp)) - (void)write(STDOUT_FILENO, "!\n", 2); - - /* Vi requires user permission to continue. */ - if (IN_VI_MODE(sp)) - F_SET(sp, S_CONTINUE); - - /* Free the extra space. */ -ret: if (bp != NULL) - FREE_SPACE(sp, bp, blen); - - return (rval); -} |