2 * Copyright (c) 1992, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
4 * Copyright (c) 1992, 1993, 1994, 1995, 1996
5 * Keith Bostic. All rights reserved.
7 * See the LICENSE file for redistribution information.
13 static const char sccsid
[] = "$Id: ex_edit.c,v 10.14 2001/08/28 13:29:15 skimo Exp $ (Berkeley) $Date: 2001/08/28 13:29:15 $";
16 #include <sys/types.h>
17 #include <sys/queue.h>
20 #include <bitstring.h>
27 #include "../common/common.h"
30 static int ex_N_edit
__P((SCR
*, EXCMD
*, FREF
*, int));
33 * ex_edit -- :e[dit][!] [+cmd] [file]
34 * :ex[!] [+cmd] [file]
35 * :vi[sual][!] [+cmd] [file]
37 * Edit a file; if none specified, re-edit the current file. The third
38 * form of the command can only be executed while in vi mode. See the
39 * hack in ex.c:ex_cmd().
42 * Historic vi didn't permit the '+' command form without specifying
43 * a file name as well. This seems unreasonable, so we support it
46 * PUBLIC: int ex_edit __P((SCR *, EXCMD *));
49 ex_edit(SCR
*sp
, EXCMD
*cmdp
)
59 * If the name has been changed, we edit that file, not the
60 * original name. If the user was editing a temporary file
61 * (or wasn't editing any file), create another one. The
62 * reason for not reusing temporary files is that there is
63 * special exit processing of them, and reuse is tricky.
66 if (sp
->ep
== NULL
|| F_ISSET(frp
, FR_TMPFILE
)) {
67 if ((frp
= file_add(sp
, NULL
)) == NULL
)
75 INT2CHAR(sp
, cmdp
->argv
[0]->bp
, cmdp
->argv
[0]->len
+ 1,
77 if ((frp
= file_add(sp
, np
)) == NULL
)
87 if (F_ISSET(cmdp
, E_NEWSCREEN
) || cmdp
->cmd
== &cmds
[C_VSPLIT
])
88 return (ex_N_edit(sp
, cmdp
, frp
, attach
));
91 * Check for modifications.
94 * Contrary to POSIX 1003.2-1992, autowrite did not affect :edit.
96 if (file_m2(sp
, FL_ISSET(cmdp
->iflags
, E_C_FORCE
)))
100 if (file_init(sp
, frp
, NULL
, (setalt
? FS_SETALT
: 0) |
101 (FL_ISSET(cmdp
->iflags
, E_C_FORCE
) ? FS_FORCE
: 0)))
104 F_SET(sp
, SC_FSWITCH
);
110 * New screen version of ex_edit.
113 ex_N_edit(SCR
*sp
, EXCMD
*cmdp
, FREF
*frp
, int attach
)
117 /* Get a new screen. */
118 if (screen_init(sp
->gp
, sp
, &new))
120 if (cmdp
->cmd
== &cmds
[C_VSPLIT
] && vs_vsplit(sp
, new) ||
121 cmdp
->cmd
!= &cmds
[C_VSPLIT
] && vs_split(sp
, new, 0)) {
122 (void)screen_end(new);
126 /* Get a backing file. */
128 /* Copy file state, keep the screen and cursor the same. */
131 CIRCLEQ_INSERT_HEAD(&new->ep
->scrq
, new, eq
);
134 new->frp
->flags
= sp
->frp
->flags
;
138 } else if (file_init(new, frp
, NULL
,
139 (FL_ISSET(cmdp
->iflags
, E_C_FORCE
) ? FS_FORCE
: 0))) {
140 (void)vs_discard(new, NULL
);
141 (void)screen_end(new);
145 /* Create the argument list. */
146 new->cargv
= new->argv
= ex_buildargv(sp
, NULL
, frp
->name
);
148 /* Set up the switch. */
150 F_SET(sp
, SC_SSWITCH
);