2 * Copyright (c) 1991, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
4 * Copyright (c) 1991, 1993, 1994, 1995, 1996
5 * Keith Bostic. All rights reserved.
7 * See the LICENSE file for redistribution information.
13 static const char sccsid[] = "@(#)ex_args.c 10.16 (Berkeley) 7/13/96";
16 #include <sys/types.h>
17 #include <sys/queue.h>
20 #include <bitstring.h>
27 #include "../common/common.h"
30 static int ex_N_next __P((SCR *, EXCMD *));
33 * ex_next -- :next [+cmd] [files]
34 * Edit the next file, optionally setting the list of files.
37 * The :next command behaved differently from the :rewind command in
38 * historic vi. See nvi/docs/autowrite for details, but the basic
39 * idea was that it ignored the force flag if the autowrite flag was
40 * set. This implementation handles them all identically.
42 * PUBLIC: int ex_next __P((SCR *, EXCMD *));
54 /* Check for file to move to. */
55 if (cmdp->argc == 0 && (sp->cargv == NULL || sp->cargv[1] == NULL)) {
56 msgq(sp, M_ERR, "111|No more files to edit");
60 if (F_ISSET(cmdp, E_NEWSCREEN)) {
61 /* By default, edit the next file in the old argument list. */
62 if (cmdp->argc == 0) {
64 cmdp, sp->cargv[1], strlen(sp->cargv[1])))
66 return (ex_edit(sp, cmdp));
68 return (ex_N_next(sp, cmdp));
71 /* Check modification. */
73 FL_ISSET(cmdp->iflags, E_C_FORCE), FS_ALL | FS_POSSIBLE))
76 /* Any arguments are a replacement file list. */
78 /* Free the current list. */
79 if (!F_ISSET(sp, SC_ARGNOFREE) && sp->argv != NULL) {
80 for (ap = sp->argv; *ap != NULL; ++ap)
84 F_CLR(sp, SC_ARGNOFREE | SC_ARGRECOVER);
87 /* Create a new list. */
89 sp->argv, char **, cmdp->argc + 1, sizeof(char *));
91 argv = cmdp->argv; argv[0]->len != 0; ++ap, ++argv)
93 v_strdup(sp, argv[0]->bp, argv[0]->len)) == NULL)
97 /* Switch to the first file. */
99 if ((frp = file_add(sp, *sp->cargv)) == NULL)
103 /* Display a file count with the welcome message. */
104 F_SET(sp, SC_STATUS_CNT);
106 if ((frp = file_add(sp, sp->cargv[1])) == NULL)
108 if (F_ISSET(sp, SC_ARGRECOVER))
109 F_SET(frp, FR_RECOVER);
113 if (file_init(sp, frp, NULL, FS_SETALT |
114 (FL_ISSET(cmdp->iflags, E_C_FORCE) ? FS_FORCE : 0)))
119 F_SET(sp, SC_FSWITCH);
125 * New screen version of ex_next.
135 /* Get a new screen. */
136 if (screen_init(sp->gp, sp, &new))
138 if (vs_split(sp, new, 0)) {
139 (void)screen_end(new);
143 /* Get a backing file. */
144 if ((frp = file_add(new, cmdp->argv[0]->bp)) == NULL ||
145 file_init(new, frp, NULL,
146 (FL_ISSET(cmdp->iflags, E_C_FORCE) ? FS_FORCE : 0))) {
147 (void)vs_discard(new, NULL);
148 (void)screen_end(new);
152 /* The arguments are a replacement file list. */
153 new->cargv = new->argv = ex_buildargv(sp, cmdp, NULL);
155 /* Display a file count with the welcome message. */
156 F_SET(new, SC_STATUS_CNT);
158 /* Set up the switch. */
160 F_SET(sp, SC_SSWITCH);
167 * Edit the previous file.
169 * PUBLIC: int ex_prev __P((SCR *, EXCMD *));
178 if (sp->cargv == sp->argv) {
179 msgq(sp, M_ERR, "112|No previous files to edit");
183 if (F_ISSET(cmdp, E_NEWSCREEN)) {
184 if (argv_exp0(sp, cmdp, sp->cargv[-1], strlen(sp->cargv[-1])))
186 return (ex_edit(sp, cmdp));
190 FL_ISSET(cmdp->iflags, E_C_FORCE), FS_ALL | FS_POSSIBLE))
193 if ((frp = file_add(sp, sp->cargv[-1])) == NULL)
196 if (file_init(sp, frp, NULL, FS_SETALT |
197 (FL_ISSET(cmdp->iflags, E_C_FORCE) ? FS_FORCE : 0)))
201 F_SET(sp, SC_FSWITCH);
207 * Re-edit the list of files.
210 * Historic practice was that all files would start editing at the beginning
211 * of the file. We don't get this right because we may have multiple screens
212 * and we can't clear the FR_CURSORSET bit for a single screen. I don't see
213 * anyone noticing, but if they do, we'll have to put information into the SCR
214 * structure so we can keep track of it.
216 * PUBLIC: int ex_rew __P((SCR *, EXCMD *));
227 * Historic practice -- you can rewind to the current file.
229 if (sp->argv == NULL) {
230 msgq(sp, M_ERR, "113|No previous files to rewind");
235 FL_ISSET(cmdp->iflags, E_C_FORCE), FS_ALL | FS_POSSIBLE))
238 /* Switch to the first one. */
239 sp->cargv = sp->argv;
240 if ((frp = file_add(sp, *sp->cargv)) == NULL)
242 if (file_init(sp, frp, NULL, FS_SETALT |
243 (FL_ISSET(cmdp->iflags, E_C_FORCE) ? FS_FORCE : 0)))
246 /* Switch and display a file count with the welcome message. */
247 F_SET(sp, SC_FSWITCH | SC_STATUS_CNT);
254 * Display the list of files.
256 * PUBLIC: int ex_args __P((SCR *, EXCMD *));
264 int cnt, col, len, sep;
267 if (sp->argv == NULL) {
268 (void)msgq(sp, M_ERR, "114|No file list to display");
274 for (cnt = 1, ap = sp->argv; *ap != NULL; ++ap) {
275 col += len = strlen(*ap) + sep + (ap == sp->cargv ? 2 : 0);
276 if (col >= sp->cols - 1) {
279 (void)ex_puts(sp, "\n");
280 } else if (cnt != 1) {
282 (void)ex_puts(sp, " ");
286 (void)ex_printf(sp, "%s%s%s", ap == sp->cargv ? "[" : "",
287 *ap, ap == sp->cargv ? "]" : "");
291 (void)ex_puts(sp, "\n");
297 * Build a new file argument list.
299 * PUBLIC: char **ex_buildargv __P((SCR *, EXCMD *, char *));
302 ex_buildargv(sp, cmdp, name)
311 argc = cmdp == NULL ? 1 : cmdp->argc;
312 CALLOC(sp, s_argv, char **, argc + 1, sizeof(char *));
313 if ((ap = s_argv) == NULL)
317 if ((*ap = v_strdup(sp, name, strlen(name))) == NULL)
321 for (argv = cmdp->argv; argv[0]->len != 0; ++ap, ++argv)
323 v_strdup(sp, argv[0]->bp, argv[0]->len)) == NULL)