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.
12 #include <sys/types.h>
13 #include <sys/queue.h>
16 #include <bitstring.h>
23 #include "../common/common.h"
26 static int ex_N_next(SCR *, EXCMD *);
29 * ex_next -- :next [+cmd] [files]
30 * Edit the next file, optionally setting the list of files.
33 * The :next command behaved differently from the :rewind command in
34 * historic vi. See nvi/docs/autowrite for details, but the basic
35 * idea was that it ignored the force flag if the autowrite flag was
36 * set. This implementation handles them all identically.
38 * PUBLIC: int ex_next(SCR *, EXCMD *);
41 ex_next(SCR *sp, EXCMD *cmdp)
52 /* Check for file to move to. */
53 if (cmdp->argc == 0 && (sp->cargv == NULL || sp->cargv[1] == NULL)) {
54 msgq(sp, M_ERR, "111|No more files to edit");
58 if (F_ISSET(cmdp, E_NEWSCREEN)) {
59 /* By default, edit the next file in the old argument list. */
60 if (cmdp->argc == 0) {
61 CHAR2INT(sp, sp->cargv[1], strlen(sp->cargv[1]) + 1,
63 if (argv_exp0(sp, cmdp, wp, wlen - 1))
65 return (ex_edit(sp, cmdp));
67 return (ex_N_next(sp, cmdp));
70 /* Check modification. */
72 FL_ISSET(cmdp->iflags, E_C_FORCE), FS_ALL | FS_POSSIBLE))
75 /* Any arguments are a replacement file list. */
77 /* Free the current list. */
78 if (!F_ISSET(sp, SC_ARGNOFREE) && sp->argv != NULL) {
79 for (ap = sp->argv; *ap != NULL; ++ap)
83 F_CLR(sp, SC_ARGNOFREE | SC_ARGRECOVER);
86 /* Create a new list. */
87 CALLOC_RET(sp, sp->argv, cmdp->argc + 1, sizeof(char *));
89 argv = cmdp->argv; argv[0]->len != 0; ++ap, ++argv) {
90 INT2CHAR(sp, argv[0]->bp, argv[0]->len, np, nlen);
91 if ((*ap = v_strdup(sp, np, nlen)) == NULL)
96 /* Switch to the first file. */
98 if ((frp = file_add(sp, *sp->cargv)) == NULL)
102 /* Display a file count with the welcome message. */
103 F_SET(sp, SC_STATUS_CNT);
105 if ((frp = file_add(sp, sp->cargv[1])) == NULL)
107 if (F_ISSET(sp, SC_ARGRECOVER))
108 F_SET(frp, FR_RECOVER);
112 if (file_init(sp, frp, NULL, FS_SETALT |
113 (FL_ISSET(cmdp->iflags, E_C_FORCE) ? FS_FORCE : 0)))
118 F_SET(sp, SC_FSWITCH);
124 * New screen version of ex_next.
127 ex_N_next(SCR *sp, EXCMD *cmdp)
134 /* Get a new screen. */
135 if (screen_init(sp->gp, sp, &new))
137 if (vs_split(sp, new, 0)) {
138 (void)screen_end(new);
142 /* Get a backing file. */
143 INT2CHAR(sp, cmdp->argv[0]->bp, cmdp->argv[0]->len + 1, np, nlen);
144 if ((frp = file_add(new, np)) == 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(SCR *, EXCMD *);
172 ex_prev(SCR *sp, EXCMD *cmdp)
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 CHAR2INT(sp, sp->cargv[-1], strlen(sp->cargv[-1]) + 1,
186 if (argv_exp0(sp, cmdp, wp, wlen - 1))
188 return (ex_edit(sp, cmdp));
192 FL_ISSET(cmdp->iflags, E_C_FORCE), FS_ALL | FS_POSSIBLE))
195 if ((frp = file_add(sp, sp->cargv[-1])) == NULL)
198 if (file_init(sp, frp, NULL, FS_SETALT |
199 (FL_ISSET(cmdp->iflags, E_C_FORCE) ? FS_FORCE : 0)))
203 F_SET(sp, SC_FSWITCH);
209 * Re-edit the list of files.
212 * Historic practice was that all files would start editing at the beginning
213 * of the file. We don't get this right because we may have multiple screens
214 * and we can't clear the FR_CURSORSET bit for a single screen. I don't see
215 * anyone noticing, but if they do, we'll have to put information into the SCR
216 * structure so we can keep track of it.
218 * PUBLIC: int ex_rew(SCR *, EXCMD *);
221 ex_rew(SCR *sp, EXCMD *cmdp)
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(SCR *, EXCMD *);
259 ex_args(SCR *sp, EXCMD *cmdp)
262 int cnt, col, len, sep;
265 if (sp->argv == NULL) {
266 (void)msgq(sp, M_ERR, "114|No file list to display");
272 for (cnt = 1, ap = sp->argv; *ap != NULL; ++ap) {
273 col += len = strlen(*ap) + sep + (ap == sp->cargv ? 2 : 0);
274 if (col >= sp->cols - 1) {
277 (void)ex_puts(sp, "\n");
278 } else if (cnt != 1) {
280 (void)ex_puts(sp, " ");
284 (void)ex_printf(sp, "%s%s%s", ap == sp->cargv ? "[" : "",
285 *ap, ap == sp->cargv ? "]" : "");
289 (void)ex_puts(sp, "\n");
295 * Build a new file argument list.
297 * PUBLIC: char **ex_buildargv(SCR *, EXCMD *, char *);
300 ex_buildargv(SCR *sp, EXCMD *cmdp, char *name)
308 argc = cmdp == NULL ? 1 : cmdp->argc;
309 CALLOC(sp, s_argv, argc + 1, sizeof(char *));
310 if ((ap = s_argv) == NULL)
314 if ((*ap = v_strdup(sp, name, strlen(name))) == NULL)
318 for (argv = cmdp->argv; argv[0]->len != 0; ++ap, ++argv) {
319 INT2CHAR(sp, argv[0]->bp, argv[0]->len, np, nlen);
320 if ((*ap = v_strdup(sp, np, nlen)) == NULL)