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patch 8.2.1967: the session file does not restore the alternate file

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Problem:    The session file does not restore the alternate file.
Solution:   Add ":balt".  Works like ":badd" and also sets the buffer as the
            alternate file.  Use it in the session file. (closes #7269,
            closes #6714)
This commit is contained in:
Bram Moolenaar
2020-11-07 18:41:10 +01:00
parent cbcd9cbd77
commit 59d8e56e04
9 changed files with 74 additions and 37 deletions
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7
runtime/doc/windows.txt
View File

@@ -1,4 +1,4 @@
*windows.txt* For Vim version 8.2. Last change: 2020 Sep 02
*windows.txt* For Vim version 8.2. Last change: 2020 Nov 07
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -1119,6 +1119,11 @@ list of buffers. |unlisted-buffer|
line when the buffer is first entered. Note that other
commands after the + will be ignored.
*:balt*
:balt [+lnum] {fname}
Like `:badd` and also set the alternate file for the current
window to {fname}.
:[N]bd[elete][!] *:bd* *:bdel* *:bdelete* *E516*
:bd[elete][!] [N]
Unload buffer [N] (default: current buffer) and delete it from

52
src/ex_cmdidxs.h
View File

@@ -7,30 +7,30 @@ static const unsigned short cmdidxs1[26] =
{
/* a */ 0,
/* b */ 19,
/* c */ 42,
/* d */ 108,
/* e */ 133,
/* f */ 156,
/* g */ 173,
/* h */ 179,
/* i */ 188,
/* j */ 207,
/* k */ 209,
/* l */ 214,
/* m */ 276,
/* n */ 294,
/* o */ 314,
/* p */ 326,
/* q */ 365,
/* r */ 368,
/* s */ 388,
/* t */ 457,
/* u */ 502,
/* v */ 513,
/* w */ 533,
/* x */ 547,
/* y */ 557,
/* z */ 558
/* c */ 43,
/* d */ 109,
/* e */ 134,
/* f */ 157,
/* g */ 174,
/* h */ 180,
/* i */ 189,
/* j */ 208,
/* k */ 210,
/* l */ 215,
/* m */ 277,
/* n */ 295,
/* o */ 315,
/* p */ 327,
/* q */ 366,
/* r */ 369,
/* s */ 389,
/* t */ 458,
/* u */ 503,
/* v */ 514,
/* w */ 534,
/* x */ 548,
/* y */ 558,
/* z */ 559
};
/*
@@ -42,7 +42,7 @@ static const unsigned short cmdidxs1[26] =
static const unsigned char cmdidxs2[26][26] =
{ /* a b c d e f g h i j k l m n o p q r s t u v w x y z */
/* a */ { 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 5, 6, 0, 0, 0, 7, 15, 0, 16, 0, 0, 0, 0, 0 },
/* b */ { 2, 0, 0, 4, 5, 7, 0, 0, 0, 0, 0, 8, 9, 10, 11, 12, 0, 13, 0, 0, 0, 0, 22, 0, 0, 0 },
/* b */ { 2, 0, 0, 5, 6, 8, 0, 0, 0, 0, 0, 9, 10, 11, 12, 13, 0, 14, 0, 0, 0, 0, 23, 0, 0, 0 },
/* c */ { 3, 12, 16, 18, 20, 22, 25, 0, 0, 0, 0, 33, 37, 40, 46, 56, 58, 59, 60, 0, 62, 0, 65, 0, 0, 0 },
/* d */ { 0, 0, 0, 0, 0, 0, 0, 0, 8, 18, 0, 19, 0, 0, 20, 0, 0, 22, 23, 0, 0, 0, 0, 0, 0, 0 },
/* e */ { 1, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 7, 9, 10, 0, 0, 0, 0, 0, 0, 0, 17, 0, 18, 0, 0 },
@@ -69,4 +69,4 @@ static const unsigned char cmdidxs2[26][26] =
/* z */ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
};
static const int command_count = 573;
static const int command_count = 574;

19
src/ex_cmds.c
View File

@@ -2459,6 +2459,7 @@ theend:
* ECMD_OLDBUF: use existing buffer if it exists
* ECMD_FORCEIT: ! used for Ex command
* ECMD_ADDBUF: don't edit, just add to buffer list
* ECMD_ALTBUF: like ECMD_ADDBUF and also set the alternate file
* oldwin: Should be "curwin" when editing a new buffer in the current
* window, NULL when splitting the window first. When not NULL info
* of the previous buffer for "oldwin" is stored.
@@ -2555,7 +2556,8 @@ do_ecmd(
fname_case(sfname, 0); // set correct case for sfname
#endif
if ((flags & ECMD_ADDBUF) && (ffname == NULL || *ffname == NUL))
if ((flags & (ECMD_ADDBUF | ECMD_ALTBUF))
&& (ffname == NULL || *ffname == NUL))
goto theend;
if (ffname == NULL)
@@ -2584,7 +2586,7 @@ do_ecmd(
*/
if ( ((!other_file && !(flags & ECMD_OLDBUF))
|| (curbuf->b_nwindows == 1
&& !(flags & (ECMD_HIDE | ECMD_ADDBUF))))
&& !(flags & (ECMD_HIDE | ECMD_ADDBUF | ECMD_ALTBUF))))
&& check_changed(curbuf, (p_awa ? CCGD_AW : 0)
| (other_file ? 0 : CCGD_MULTWIN)
| ((flags & ECMD_FORCEIT) ? CCGD_FORCEIT : 0)
@@ -2633,7 +2635,7 @@ do_ecmd(
*/
if (other_file)
{
if (!(flags & ECMD_ADDBUF))
if (!(flags & (ECMD_ADDBUF | ECMD_ALTBUF)))
{
if ((cmdmod.cmod_flags & CMOD_KEEPALT) == 0)
curwin->w_alt_fnum = curbuf->b_fnum;
@@ -2645,11 +2647,12 @@ do_ecmd(
buf = buflist_findnr(fnum);
else
{
if (flags & ECMD_ADDBUF)
if (flags & (ECMD_ADDBUF | ECMD_ALTBUF))
{
// Default the line number to zero to avoid that a wininfo item
// is added for the current window.
linenr_T tlnum = 0;
buf_T *newbuf;
if (command != NULL)
{
@@ -2657,10 +2660,12 @@ do_ecmd(
if (tlnum <= 0)
tlnum = 1L;
}
// Add BLN_NOCURWIN to avoid a new wininfo items is assocated
// Add BLN_NOCURWIN to avoid a new wininfo items are assocated
// with the current window.
(void)buflist_new(ffname, sfname, tlnum,
newbuf = buflist_new(ffname, sfname, tlnum,
BLN_LISTED | BLN_NOCURWIN);
if (newbuf != NULL && (flags & ECMD_ALTBUF))
curwin->w_alt_fnum = newbuf->b_fnum;
goto theend;
}
buf = buflist_new(ffname, sfname, 0L,
@@ -2818,7 +2823,7 @@ do_ecmd(
}
else // !other_file
{
if ((flags & ECMD_ADDBUF) || check_fname() == FAIL)
if ((flags & (ECMD_ADDBUF | ECMD_ALTBUF)) || check_fname() == FAIL)
goto theend;
oldbuf = (flags & ECMD_OLDBUF);

3
src/ex_cmds.h
View File

@@ -178,6 +178,9 @@ EXCMD(CMD_ball, "ball", ex_buffer_all,
EXCMD(CMD_badd, "badd", ex_edit,
EX_NEEDARG|EX_FILE1|EX_CMDARG|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
ADDR_NONE),
EXCMD(CMD_balt, "balt", ex_edit,
EX_NEEDARG|EX_FILE1|EX_CMDARG|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
ADDR_NONE),
EXCMD(CMD_bdelete, "bdelete", ex_bunload,
EX_BANG|EX_RANGE|EX_BUFNAME|EX_COUNT|EX_EXTRA|EX_TRLBAR,
ADDR_BUFFERS),

5
src/ex_docmd.c
View File

@@ -6506,7 +6506,7 @@ ex_open(exarg_T *eap)
}
/*
* ":edit", ":badd", ":visual".
* ":edit", ":badd", ":balt", ":visual".
*/
static void
ex_edit(exarg_T *eap)
@@ -6622,6 +6622,7 @@ do_exedit(
// after a split we can use an existing buffer
+ (old_curwin != NULL ? ECMD_OLDBUF : 0)
+ (eap->cmdidx == CMD_badd ? ECMD_ADDBUF : 0)
+ (eap->cmdidx == CMD_balt ? ECMD_ALTBUF : 0)
, old_curwin == NULL ? curwin : NULL) == FAIL)
{
// Editing the file failed. If the window was split, close it.
@@ -8472,7 +8473,7 @@ find_cmdline_var(char_u *src, int *usedlen)
* Evaluate cmdline variables.
*
* change '%' to curbuf->b_ffname
* '#' to curwin->w_altfile
* '#' to curwin->w_alt_fnum
* '<cword>' to word under the cursor
* '<cWORD>' to WORD under the cursor
* '<cexpr>' to C-expression under the cursor

13
src/session.c
View File

@@ -397,6 +397,19 @@ put_view(
}
}
if (wp->w_alt_fnum)
{
buf_T *alt = buflist_findnr(wp->w_alt_fnum);
// Set the alternate file.
if (alt != NULL
&& alt->b_fname != NULL
&& *alt->b_fname != NUL
&& (fputs("balt ", fd) < 0
|| ses_fname(fd, alt, flagp, TRUE) == FAIL))
return FAIL;
}
// Local mappings and abbreviations.
if ((*flagp & (SSOP_OPTIONS | SSOP_LOCALOPTIONS))
&& makemap(fd, wp->w_buffer) == FAIL)

7
src/testdir/test_buffer.vim
View File

@@ -374,4 +374,11 @@ func Test_badd_options()
bwipe! SomeNewBuffer
endfunc
func Test_balt()
new SomeNewBuffer
balt +3 OtherBuffer
e #
call assert_equal('OtherBuffer', bufname())
endfunc
" vim: shiftwidth=2 sts=2 expandtab

2
src/version.c
View File

@@ -750,6 +750,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
1967,
/**/
1966,
/**/

1
src/vim.h
View File

@@ -1029,6 +1029,7 @@ extern int (*dyn_libintl_wputenv)(const wchar_t *envstring);
#define ECMD_OLDBUF 0x04 // use existing buffer if it exists
#define ECMD_FORCEIT 0x08 // ! used in Ex command
#define ECMD_ADDBUF 0x10 // don't edit, just add to buffer list
#define ECMD_ALTBUF 0x20 // like ECMD_ADDBUF and set the alternate file
// for lnum argument in do_ecmd()
#define ECMD_LASTL (linenr_T)0 // use last position in loaded file