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gerrit.omnirom.org / android_external_vim / d2f49879990407b209f39397b9880f91f851a49a / . / src / buffer.c
blob: cbec9b980c6b8d29e0c37a82f47c69b84b8eb2e7 [file] [log] [blame]
/* vi:set ts=8 sts=4 sw=4 noet:
*
* VIM - Vi IMproved by Bram Moolenaar
*
* Do ":help uganda" in Vim to read copying and usage conditions.
* Do ":help credits" in Vim to see a list of people who contributed.
* See README.txt for an overview of the Vim source code.
*/
/*
* buffer.c: functions for dealing with the buffer structure
*/
/*
* The buffer list is a double linked list of all buffers.
* Each buffer can be in one of these states:
* never loaded: BF_NEVERLOADED is set, only the file name is valid
* not loaded: b_ml.ml_mfp == NULL, no memfile allocated
* hidden: b_nwindows == 0, loaded but not displayed in a window
* normal: loaded and displayed in a window
*
* Instead of storing file names all over the place, each file name is
* stored in the buffer list. It can be referenced by a number.
*
* The current implementation remembers all file names ever used.
*/
#include "vim.h"
#ifdef FEAT_EVAL
// Determines how deeply nested %{} blocks will be evaluated in statusline.
# define MAX_STL_EVAL_DEPTH 100
#endif
static void enter_buffer(buf_T *buf);
static void buflist_getfpos(void);
static char_u *buflist_match(regmatch_T *rmp, buf_T *buf, int ignore_case);
static char_u *fname_match(regmatch_T *rmp, char_u *name, int ignore_case);
#ifdef UNIX
static buf_T *buflist_findname_stat(char_u *ffname, stat_T *st);
static int otherfile_buf(buf_T *buf, char_u *ffname, stat_T *stp);
static int buf_same_ino(buf_T *buf, stat_T *stp);
#else
static int otherfile_buf(buf_T *buf, char_u *ffname);
#endif
static int value_changed(char_u *str, char_u **last);
static int append_arg_number(win_T *wp, char_u *buf, int buflen, int add_file);
static void free_buffer(buf_T *);
static void free_buffer_stuff(buf_T *buf, int free_options);
static int bt_nofileread(buf_T *buf);
static void no_write_message_buf(buf_T *buf);
#ifdef UNIX
# define dev_T dev_t
#else
# define dev_T unsigned
#endif
#define FOR_ALL_BUFS_FROM_LAST(buf) \
for ((buf) = lastbuf; (buf) != NULL; (buf) = (buf)->b_prev)
#if defined(FEAT_QUICKFIX)
static char *msg_loclist = N_("[Location List]");
static char *msg_qflist = N_("[Quickfix List]");
#endif
// Number of times free_buffer() was called.
static int buf_free_count = 0;
static int top_file_num = 1; // highest file number
static garray_T buf_reuse = GA_EMPTY; // file numbers to recycle
/*
* Return the highest possible buffer number.
*/
int
get_highest_fnum(void)
{
return top_file_num - 1;
}
/*
* Read data from buffer for retrying.
*/
static int
read_buffer(
int read_stdin, // read file from stdin, otherwise fifo
exarg_T *eap, // for forced 'ff' and 'fenc' or NULL
int flags) // extra flags for readfile()
{
int retval = OK;
linenr_T line_count;
// Read from the buffer which the text is already filled in and append at
// the end. This makes it possible to retry when 'fileformat' or
// 'fileencoding' was guessed wrong.
line_count = curbuf->b_ml.ml_line_count;
retval = readfile(
read_stdin ? NULL : curbuf->b_ffname,
read_stdin ? NULL : curbuf->b_fname,
line_count, (linenr_T)0, (linenr_T)MAXLNUM, eap,
flags | READ_BUFFER);
if (retval == OK)
{
// Delete the binary lines.
while (--line_count >= 0)
ml_delete((linenr_T)1);
}
else
{
// Delete the converted lines.
while (curbuf->b_ml.ml_line_count > line_count)
ml_delete(line_count);
}
// Put the cursor on the first line.
curwin->w_cursor.lnum = 1;
curwin->w_cursor.col = 0;
if (read_stdin)
{
// Set or reset 'modified' before executing autocommands, so that
// it can be changed there.
if (!readonlymode && !BUFEMPTY())
changed();
else if (retval == OK)
unchanged(curbuf, FALSE, TRUE);
if (retval == OK)
{
#ifdef FEAT_EVAL
apply_autocmds_retval(EVENT_STDINREADPOST, NULL, NULL, FALSE,
curbuf, &retval);
#else
apply_autocmds(EVENT_STDINREADPOST, NULL, NULL, FALSE, curbuf);
#endif
}
}
return retval;
}
#if defined(FEAT_EVAL) || defined(PROTO)
/*
* Ensure buffer "buf" is loaded. Does not trigger the swap-exists action.
*/
void
buffer_ensure_loaded(buf_T *buf)
{
if (buf->b_ml.ml_mfp != NULL)
return;
aco_save_T aco;
// Make sure the buffer is in a window. If not then skip it.
aucmd_prepbuf(&aco, buf);
if (curbuf == buf)
{
if (swap_exists_action != SEA_READONLY)
swap_exists_action = SEA_NONE;
open_buffer(FALSE, NULL, 0);
aucmd_restbuf(&aco);
}
}
#endif
/*
* Open current buffer, that is: open the memfile and read the file into
* memory.
* Return FAIL for failure, OK otherwise.
*/
int
open_buffer(
int read_stdin, // read file from stdin
exarg_T *eap, // for forced 'ff' and 'fenc' or NULL
int flags_arg) // extra flags for readfile()
{
int flags = flags_arg;
int retval = OK;
bufref_T old_curbuf;
#ifdef FEAT_SYN_HL
long old_tw = curbuf->b_p_tw;
#endif
int read_fifo = FALSE;
// The 'readonly' flag is only set when BF_NEVERLOADED is being reset.
// When re-entering the same buffer, it should not change, because the
// user may have reset the flag by hand.
if (readonlymode && curbuf->b_ffname != NULL
&& (curbuf->b_flags & BF_NEVERLOADED))
curbuf->b_p_ro = TRUE;
if (ml_open(curbuf) == FAIL)
{
// There MUST be a memfile, otherwise we can't do anything
// If we can't create one for the current buffer, take another buffer
close_buffer(NULL, curbuf, 0, FALSE, FALSE);
FOR_ALL_BUFFERS(curbuf)
if (curbuf->b_ml.ml_mfp != NULL)
break;
// If there is no memfile at all, exit.
// This is OK, since there are no changes to lose.
if (curbuf == NULL)
{
emsg(_(e_cannot_allocate_any_buffer_exiting));
// Don't try to do any saving, with "curbuf" NULL almost nothing
// will work.
v_dying = 2;
getout(2);
}
emsg(_(e_cannot_allocate_buffer_using_other_one));
enter_buffer(curbuf);
#ifdef FEAT_SYN_HL
if (old_tw != curbuf->b_p_tw)
check_colorcolumn(curwin);
#endif
return FAIL;
}
// Do not sync this buffer yet, may first want to read the file.
if (curbuf->b_ml.ml_mfp != NULL)
curbuf->b_ml.ml_mfp->mf_dirty = MF_DIRTY_YES_NOSYNC;
// The autocommands in readfile() may change the buffer, but only AFTER
// reading the file.
set_bufref(&old_curbuf, curbuf);
curbuf->b_modified_was_set = FALSE;
// mark cursor position as being invalid
curwin->w_valid = 0;
// A buffer without an actual file should not use the buffer name to read a
// file.
if (bt_nofileread(curbuf))
flags |= READ_NOFILE;
// Read the file if there is one.
if (curbuf->b_ffname != NULL
#ifdef FEAT_NETBEANS_INTG
&& netbeansReadFile
#endif
)
{
int old_msg_silent = msg_silent;
#ifdef UNIX
int save_bin = curbuf->b_p_bin;
int perm;
#endif
#ifdef FEAT_NETBEANS_INTG
int oldFire = netbeansFireChanges;
netbeansFireChanges = 0;
#endif
#ifdef UNIX
perm = mch_getperm(curbuf->b_ffname);
if (perm >= 0 && (S_ISFIFO(perm)
|| S_ISSOCK(perm)
# ifdef OPEN_CHR_FILES
|| (S_ISCHR(perm) && is_dev_fd_file(curbuf->b_ffname))
# endif
))
read_fifo = TRUE;
if (read_fifo)
curbuf->b_p_bin = TRUE;
#endif
if (shortmess(SHM_FILEINFO))
msg_silent = 1;
retval = readfile(curbuf->b_ffname, curbuf->b_fname,
(linenr_T)0, (linenr_T)0, (linenr_T)MAXLNUM, eap,
flags | READ_NEW | (read_fifo ? READ_FIFO : 0));
#ifdef UNIX
if (read_fifo)
{
curbuf->b_p_bin = save_bin;
if (retval == OK)
retval = read_buffer(FALSE, eap, flags);
}
#endif
msg_silent = old_msg_silent;
#ifdef FEAT_NETBEANS_INTG
netbeansFireChanges = oldFire;
#endif
// Help buffer is filtered.
if (bt_help(curbuf))
fix_help_buffer();
}
else if (read_stdin)
{
int save_bin = curbuf->b_p_bin;
// First read the text in binary mode into the buffer.
// Then read from that same buffer and append at the end. This makes
// it possible to retry when 'fileformat' or 'fileencoding' was
// guessed wrong.
curbuf->b_p_bin = TRUE;
retval = readfile(NULL, NULL, (linenr_T)0,
(linenr_T)0, (linenr_T)MAXLNUM, NULL,
flags | (READ_NEW + READ_STDIN));
curbuf->b_p_bin = save_bin;
if (retval == OK)
retval = read_buffer(TRUE, eap, flags);
}
// Can now sync this buffer in ml_sync_all().
if (curbuf->b_ml.ml_mfp != NULL
&& curbuf->b_ml.ml_mfp->mf_dirty == MF_DIRTY_YES_NOSYNC)
curbuf->b_ml.ml_mfp->mf_dirty = MF_DIRTY_YES;
// if first time loading this buffer, init b_chartab[]
if (curbuf->b_flags & BF_NEVERLOADED)
{
(void)buf_init_chartab(curbuf, FALSE);
parse_cino(curbuf);
}
// Set/reset the Changed flag first, autocmds may change the buffer.
// Apply the automatic commands, before processing the modelines.
// So the modelines have priority over autocommands.
//
// When reading stdin, the buffer contents always needs writing, so set
// the changed flag. Unless in readonly mode: "ls | gview -".
// When interrupted and 'cpoptions' contains 'i' set changed flag.
if ((got_int && vim_strchr(p_cpo, CPO_INTMOD) != NULL)
|| curbuf->b_modified_was_set // autocmd did ":set modified"
#ifdef FEAT_EVAL
|| (aborting() && vim_strchr(p_cpo, CPO_INTMOD) != NULL)
#endif
)
changed();
else if (retval == OK && !read_stdin && !read_fifo)
unchanged(curbuf, FALSE, TRUE);
save_file_ff(curbuf); // keep this fileformat
// Set last_changedtick to avoid triggering a TextChanged autocommand right
// after it was added.
curbuf->b_last_changedtick = CHANGEDTICK(curbuf);
curbuf->b_last_changedtick_i = CHANGEDTICK(curbuf);
curbuf->b_last_changedtick_pum = CHANGEDTICK(curbuf);
// require "!" to overwrite the file, because it wasn't read completely
#ifdef FEAT_EVAL
if (aborting())
#else
if (got_int)
#endif
curbuf->b_flags |= BF_READERR;
#ifdef FEAT_FOLDING
// Need to update automatic folding. Do this before the autocommands,
// they may use the fold info.
foldUpdateAll(curwin);
#endif
// need to set w_topline, unless some autocommand already did that.
if (!(curwin->w_valid & VALID_TOPLINE))
{
curwin->w_topline = 1;
#ifdef FEAT_DIFF
curwin->w_topfill = 0;
#endif
}
#ifdef FEAT_EVAL
apply_autocmds_retval(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf, &retval);
#else
apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf);
#endif
if (retval != OK)
return retval;
// The autocommands may have changed the current buffer. Apply the
// modelines to the correct buffer, if it still exists and is loaded.
if (bufref_valid(&old_curbuf) && old_curbuf.br_buf->b_ml.ml_mfp != NULL)
{
aco_save_T aco;
// Go to the buffer that was opened, make sure it is in a window.
// If not then skip it.
aucmd_prepbuf(&aco, old_curbuf.br_buf);
if (curbuf == old_curbuf.br_buf)
{
do_modelines(0);
curbuf->b_flags &= ~(BF_CHECK_RO | BF_NEVERLOADED);
if ((flags & READ_NOWINENTER) == 0)
#ifdef FEAT_EVAL
apply_autocmds_retval(EVENT_BUFWINENTER, NULL, NULL,
FALSE, curbuf, &retval);
#else
apply_autocmds(EVENT_BUFWINENTER, NULL, NULL,
FALSE, curbuf);
#endif
// restore curwin/curbuf and a few other things
aucmd_restbuf(&aco);
}
}
return retval;
}
/*
* Store "buf" in "bufref" and set the free count.
*/
void
set_bufref(bufref_T *bufref, buf_T *buf)
{
bufref->br_buf = buf;
bufref->br_fnum = buf == NULL ? 0 : buf->b_fnum;
bufref->br_buf_free_count = buf_free_count;
}
/*
* Return TRUE if "bufref->br_buf" points to the same buffer as when
* set_bufref() was called and it is a valid buffer.
* Only goes through the buffer list if buf_free_count changed.
* Also checks if b_fnum is still the same, a :bwipe followed by :new might get
* the same allocated memory, but it's a different buffer.
*/
int
bufref_valid(bufref_T *bufref)
{
return bufref->br_buf_free_count == buf_free_count
? TRUE : buf_valid(bufref->br_buf)
&& bufref->br_fnum == bufref->br_buf->b_fnum;
}
/*
* Return TRUE if "buf" points to a valid buffer (in the buffer list).
* This can be slow if there are many buffers, prefer using bufref_valid().
*/
int
buf_valid(buf_T *buf)
{
buf_T *bp;
// Assume that we more often have a recent buffer, start with the last
// one.
FOR_ALL_BUFS_FROM_LAST(bp)
if (bp == buf)
return TRUE;
return FALSE;
}
/*
* A hash table used to quickly lookup a buffer by its number.
*/
static hashtab_T buf_hashtab;
static void
buf_hashtab_add(buf_T *buf)
{
sprintf((char *)buf->b_key, "%x", buf->b_fnum);
if (hash_add(&buf_hashtab, buf->b_key, "create buffer") == FAIL)
emsg(_(e_buffer_cannot_be_registered));
}
static void
buf_hashtab_remove(buf_T *buf)
{
hashitem_T *hi = hash_find(&buf_hashtab, buf->b_key);
if (!HASHITEM_EMPTY(hi))
hash_remove(&buf_hashtab, hi, "close buffer");
}
/*
* Return TRUE when buffer "buf" can be unloaded.
* Give an error message and return FALSE when the buffer is locked or the
* screen is being redrawn and the buffer is in a window.
*/
static int
can_unload_buffer(buf_T *buf)
{
int can_unload = !buf->b_locked;
if (can_unload && updating_screen)
{
win_T *wp;
FOR_ALL_WINDOWS(wp)
if (wp->w_buffer == buf)
{
can_unload = FALSE;
break;
}
}
if (!can_unload)
{
char_u *fname = buf->b_fname != NULL ? buf->b_fname : buf->b_ffname;
semsg(_(e_attempt_to_delete_buffer_that_is_in_use_str),
fname != NULL ? fname : (char_u *)"[No Name]");
}
return can_unload;
}
/*
* Close the link to a buffer.
* "action" is used when there is no longer a window for the buffer.
* It can be:
* 0 buffer becomes hidden
* DOBUF_UNLOAD buffer is unloaded
* DOBUF_DEL buffer is unloaded and removed from buffer list
* DOBUF_WIPE buffer is unloaded and really deleted
* DOBUF_WIPE_REUSE idem, and add to buf_reuse list
* When doing all but the first one on the current buffer, the caller should
* get a new buffer very soon!
*
* The 'bufhidden' option can force freeing and deleting.
*
* When "abort_if_last" is TRUE then do not close the buffer if autocommands
* cause there to be only one window with this buffer. e.g. when ":quit" is
* supposed to close the window but autocommands close all other windows.
*
* When "ignore_abort" is TRUE don't abort even when aborting() returns TRUE.
*
* Return TRUE when we got to the end and b_nwindows was decremented.
*/
int
close_buffer(
win_T *win, // if not NULL, set b_last_cursor
buf_T *buf,
int action,
int abort_if_last,
int ignore_abort)
{
int is_curbuf;
int nwindows;
bufref_T bufref;
int is_curwin = (curwin != NULL && curwin->w_buffer == buf);
win_T *the_curwin = curwin;
tabpage_T *the_curtab = curtab;
int unload_buf = (action != 0);
int wipe_buf = (action == DOBUF_WIPE || action == DOBUF_WIPE_REUSE);
int del_buf = (action == DOBUF_DEL || wipe_buf);
CHECK_CURBUF;
// Force unloading or deleting when 'bufhidden' says so.
// The caller must take care of NOT deleting/freeing when 'bufhidden' is
// "hide" (otherwise we could never free or delete a buffer).
if (buf->b_p_bh[0] == 'd') // 'bufhidden' == "delete"
{
del_buf = TRUE;
unload_buf = TRUE;
}
else if (buf->b_p_bh[0] == 'w') // 'bufhidden' == "wipe"
{
del_buf = TRUE;
unload_buf = TRUE;
wipe_buf = TRUE;
}
else if (buf->b_p_bh[0] == 'u') // 'bufhidden' == "unload"
unload_buf = TRUE;
#ifdef FEAT_TERMINAL
// depending on how we get here b_nwindows may already be zero
if (bt_terminal(buf) && (buf->b_nwindows <= 1 || del_buf))
{
CHECK_CURBUF;
if (term_job_running(buf->b_term))
{
if (wipe_buf || unload_buf)
{
if (!can_unload_buffer(buf))
return FALSE;
// Wiping out or unloading a terminal buffer kills the job.
free_terminal(buf);
// A terminal buffer is wiped out when job has finished.
del_buf = TRUE;
unload_buf = TRUE;
wipe_buf = TRUE;
}
else
{
// The job keeps running, hide the buffer.
del_buf = FALSE;
unload_buf = FALSE;
}
}
else if (buf->b_p_bh[0] == 'h' && !del_buf)
{
// Hide a terminal buffer.
unload_buf = FALSE;
}
else
{
if (del_buf || unload_buf)
{
// A terminal buffer is wiped out if the job has finished.
// We only do this when there's an intention to unload the
// buffer. This way, :hide and other similar commands won't
// wipe the buffer.
del_buf = TRUE;
unload_buf = TRUE;
wipe_buf = TRUE;
}
}
CHECK_CURBUF;
}
#endif
// Disallow deleting the buffer when it is locked (already being closed or
// halfway a command that relies on it). Unloading is allowed.
if ((del_buf || wipe_buf) && !can_unload_buffer(buf))
return FALSE;
// check no autocommands closed the window
if (win != NULL && win_valid_any_tab(win))
{
// Set b_last_cursor when closing the last window for the buffer.
// Remember the last cursor position and window options of the buffer.
// This used to be only for the current window, but then options like
// 'foldmethod' may be lost with a ":only" command.
if (buf->b_nwindows == 1)
set_last_cursor(win);
buflist_setfpos(buf, win,
win->w_cursor.lnum == 1 ? 0 : win->w_cursor.lnum,
win->w_cursor.col, TRUE);
}
set_bufref(&bufref, buf);
// When the buffer is no longer in a window, trigger BufWinLeave
if (buf->b_nwindows == 1)
{
++buf->b_locked;
++buf->b_locked_split;
if (apply_autocmds(EVENT_BUFWINLEAVE, buf->b_fname, buf->b_fname,
FALSE, buf)
&& !bufref_valid(&bufref))
{
// Autocommands deleted the buffer.
aucmd_abort:
emsg(_(e_autocommands_caused_command_to_abort));
return FALSE;
}
--buf->b_locked;
--buf->b_locked_split;
if (abort_if_last && one_window())
// Autocommands made this the only window.
goto aucmd_abort;
// When the buffer becomes hidden, but is not unloaded, trigger
// BufHidden
if (!unload_buf)
{
++buf->b_locked;
++buf->b_locked_split;
if (apply_autocmds(EVENT_BUFHIDDEN, buf->b_fname, buf->b_fname,
FALSE, buf)
&& !bufref_valid(&bufref))
// Autocommands deleted the buffer.
goto aucmd_abort;
--buf->b_locked;
--buf->b_locked_split;
if (abort_if_last && one_window())
// Autocommands made this the only window.
goto aucmd_abort;
}
#ifdef FEAT_EVAL
// autocmds may abort script processing
if (!ignore_abort && aborting())
return FALSE;
#endif
}
// If the buffer was in curwin and the window has changed, go back to that
// window, if it still exists. This avoids that ":edit x" triggering a
// "tabnext" BufUnload autocmd leaves a window behind without a buffer.
if (is_curwin && curwin != the_curwin && win_valid_any_tab(the_curwin))
{
block_autocmds();
goto_tabpage_win(the_curtab, the_curwin);
unblock_autocmds();
}
nwindows = buf->b_nwindows;
// decrease the link count from windows (unless not in any window)
if (buf->b_nwindows > 0)
--buf->b_nwindows;
#ifdef FEAT_DIFF
if (diffopt_hiddenoff() && !unload_buf && buf->b_nwindows == 0)
diff_buf_delete(buf); // Clear 'diff' for hidden buffer.
#endif
// Return when a window is displaying the buffer or when it's not
// unloaded.
if (buf->b_nwindows > 0 || !unload_buf)
return FALSE;
// Always remove the buffer when there is no file name.
if (buf->b_ffname == NULL)
del_buf = TRUE;
// When closing the current buffer stop Visual mode before freeing
// anything.
if (buf == curbuf && VIsual_active
#if defined(EXITFREE)
&& !entered_free_all_mem
#endif
)
end_visual_mode();
// Free all things allocated for this buffer.
// Also calls the "BufDelete" autocommands when del_buf is TRUE.
//
// Remember if we are closing the current buffer. Restore the number of
// windows, so that autocommands in buf_freeall() don't get confused.
is_curbuf = (buf == curbuf);
buf->b_nwindows = nwindows;
buf_freeall(buf, (del_buf ? BFA_DEL : 0)
+ (wipe_buf ? BFA_WIPE : 0)
+ (ignore_abort ? BFA_IGNORE_ABORT : 0));
// Autocommands may have deleted the buffer.
if (!bufref_valid(&bufref))
return FALSE;
#ifdef FEAT_EVAL
// autocmds may abort script processing
if (!ignore_abort && aborting())
return FALSE;
#endif
// It's possible that autocommands change curbuf to the one being deleted.
// This might cause the previous curbuf to be deleted unexpectedly. But
// in some cases it's OK to delete the curbuf, because a new one is
// obtained anyway. Therefore only return if curbuf changed to the
// deleted buffer.
if (buf == curbuf && !is_curbuf)
return FALSE;
if (win_valid_any_tab(win) && win->w_buffer == buf)
win->w_buffer = NULL; // make sure we don't use the buffer now
// Autocommands may have opened or closed windows for this buffer.
// Decrement the count for the close we do here.
if (buf->b_nwindows > 0)
--buf->b_nwindows;
/*
* Remove the buffer from the list.
*/
if (wipe_buf)
{
// Do not wipe out the buffer if it is used in a window.
if (buf->b_nwindows > 0)
return FALSE;
if (action == DOBUF_WIPE_REUSE)
{
// we can re-use this buffer number, store it
if (buf_reuse.ga_itemsize == 0)
ga_init2(&buf_reuse, sizeof(int), 50);
if (ga_grow(&buf_reuse, 1) == OK)
((int *)buf_reuse.ga_data)[buf_reuse.ga_len++] = buf->b_fnum;
}
if (buf->b_sfname != buf->b_ffname)
VIM_CLEAR(buf->b_sfname);
else
buf->b_sfname = NULL;
VIM_CLEAR(buf->b_ffname);
if (buf->b_prev == NULL)
firstbuf = buf->b_next;
else
buf->b_prev->b_next = buf->b_next;
if (buf->b_next == NULL)
lastbuf = buf->b_prev;
else
buf->b_next->b_prev = buf->b_prev;
free_buffer(buf);
}
else
{
if (del_buf)
{
// Free all internal variables and reset option values, to make
// ":bdel" compatible with Vim 5.7.
free_buffer_stuff(buf, TRUE);
// Make it look like a new buffer.
buf->b_flags = BF_CHECK_RO | BF_NEVERLOADED;
// Init the options when loaded again.
buf->b_p_initialized = FALSE;
}
buf_clear_file(buf);
if (del_buf)
buf->b_p_bl = FALSE;
}
// NOTE: at this point "curbuf" may be invalid!
return TRUE;
}
/*
* Make buffer not contain a file.
*/
void
buf_clear_file(buf_T *buf)
{
buf->b_ml.ml_line_count = 1;
unchanged(buf, TRUE, TRUE);
buf->b_shortname = FALSE;
buf->b_p_eof = FALSE;
buf->b_start_eof = FALSE;
buf->b_p_eol = TRUE;
buf->b_start_eol = TRUE;
buf->b_p_bomb = FALSE;
buf->b_start_bomb = FALSE;
buf->b_ml.ml_mfp = NULL;
buf->b_ml.ml_flags = ML_EMPTY; // empty buffer
#ifdef FEAT_NETBEANS_INTG
netbeans_deleted_all_lines(buf);
#endif
}
/*
* buf_freeall() - free all things allocated for a buffer that are related to
* the file. Careful: get here with "curwin" NULL when exiting.
* flags:
* BFA_DEL buffer is going to be deleted
* BFA_WIPE buffer is going to be wiped out
* BFA_KEEP_UNDO do not free undo information
* BFA_IGNORE_ABORT don't abort even when aborting() returns TRUE
*/
void
buf_freeall(buf_T *buf, int flags)
{
int is_curbuf = (buf == curbuf);
bufref_T bufref;
int is_curwin = (curwin != NULL && curwin->w_buffer == buf);
win_T *the_curwin = curwin;
tabpage_T *the_curtab = curtab;
// Make sure the buffer isn't closed by autocommands.
++buf->b_locked;
++buf->b_locked_split;
set_bufref(&bufref, buf);
if (buf->b_ml.ml_mfp != NULL)
{
if (apply_autocmds(EVENT_BUFUNLOAD, buf->b_fname, buf->b_fname,
FALSE, buf)
&& !bufref_valid(&bufref))
// autocommands deleted the buffer
return;
}
if ((flags & BFA_DEL) && buf->b_p_bl)
{
if (apply_autocmds(EVENT_BUFDELETE, buf->b_fname, buf->b_fname,
FALSE, buf)
&& !bufref_valid(&bufref))
// autocommands deleted the buffer
return;
}
if (flags & BFA_WIPE)
{
if (apply_autocmds(EVENT_BUFWIPEOUT, buf->b_fname, buf->b_fname,
FALSE, buf)
&& !bufref_valid(&bufref))
// autocommands deleted the buffer
return;
}
--buf->b_locked;
--buf->b_locked_split;
// If the buffer was in curwin and the window has changed, go back to that
// window, if it still exists. This avoids that ":edit x" triggering a
// "tabnext" BufUnload autocmd leaves a window behind without a buffer.
if (is_curwin && curwin != the_curwin && win_valid_any_tab(the_curwin))
{
block_autocmds();
goto_tabpage_win(the_curtab, the_curwin);
unblock_autocmds();
}
#ifdef FEAT_EVAL
// autocmds may abort script processing
if ((flags & BFA_IGNORE_ABORT) == 0 && aborting())
return;
#endif
// It's possible that autocommands change curbuf to the one being deleted.
// This might cause curbuf to be deleted unexpectedly. But in some cases
// it's OK to delete the curbuf, because a new one is obtained anyway.
// Therefore only return if curbuf changed to the deleted buffer.
if (buf == curbuf && !is_curbuf)
return;
#ifdef FEAT_DIFF
diff_buf_delete(buf); // Can't use 'diff' for unloaded buffer.
#endif
#ifdef FEAT_SYN_HL
// Remove any ownsyntax, unless exiting.
if (curwin != NULL && curwin->w_buffer == buf)
reset_synblock(curwin);
#endif
#ifdef FEAT_FOLDING
// No folds in an empty buffer.
{
win_T *win;
tabpage_T *tp;
FOR_ALL_TAB_WINDOWS(tp, win)
if (win->w_buffer == buf)
clearFolding(win);
}
#endif
#ifdef FEAT_TCL
tcl_buffer_free(buf);
#endif
ml_close(buf, TRUE); // close and delete the memline/memfile
buf->b_ml.ml_line_count = 0; // no lines in buffer
if ((flags & BFA_KEEP_UNDO) == 0)
// free the memory allocated for undo
// and reset all undo information
u_clearallandblockfree(buf);
#ifdef FEAT_SYN_HL
syntax_clear(&buf->b_s); // reset syntax info
#endif
#ifdef FEAT_PROP_POPUP
clear_buf_prop_types(buf);
#endif
buf->b_flags &= ~BF_READERR; // a read error is no longer relevant
}
/*
* Free a buffer structure and the things it contains related to the buffer
* itself (not the file, that must have been done already).
*/
static void
free_buffer(buf_T *buf)
{
++buf_free_count;
free_buffer_stuff(buf, TRUE);
#ifdef FEAT_EVAL
// b:changedtick uses an item in buf_T, remove it now
dictitem_remove(buf->b_vars, (dictitem_T *)&buf->b_ct_di, "free buffer");
unref_var_dict(buf->b_vars);
remove_listeners(buf);
#endif
#ifdef FEAT_LUA
lua_buffer_free(buf);
#endif
#ifdef FEAT_MZSCHEME
mzscheme_buffer_free(buf);
#endif
#ifdef FEAT_PERL
perl_buf_free(buf);
#endif
#ifdef FEAT_PYTHON
python_buffer_free(buf);
#endif
#ifdef FEAT_PYTHON3
python3_buffer_free(buf);
#endif
#ifdef FEAT_RUBY
ruby_buffer_free(buf);
#endif
#ifdef FEAT_JOB_CHANNEL
channel_buffer_free(buf);
#endif
#ifdef FEAT_TERMINAL
free_terminal(buf);
#endif
#ifdef FEAT_JOB_CHANNEL
vim_free(buf->b_prompt_text);
free_callback(&buf->b_prompt_callback);
free_callback(&buf->b_prompt_interrupt);
#endif
buf_hashtab_remove(buf);
aubuflocal_remove(buf);
if (autocmd_busy)
{
// Do not free the buffer structure while autocommands are executing,
// it's still needed. Free it when autocmd_busy is reset.
buf->b_next = au_pending_free_buf;
au_pending_free_buf = buf;
}
else
{
vim_free(buf);
if (curbuf == buf)
curbuf = NULL; // make clear it's not to be used
}
}
/*
* Initializes b:changedtick.
*/
static void
init_changedtick(buf_T *buf)
{
dictitem_T *di = (dictitem_T *)&buf->b_ct_di;
di->di_flags = DI_FLAGS_FIX | DI_FLAGS_RO;
di->di_tv.v_type = VAR_NUMBER;
di->di_tv.v_lock = VAR_FIXED;
di->di_tv.vval.v_number = 0;
#ifdef FEAT_EVAL
STRCPY(buf->b_ct_di.di_key, "changedtick");
(void)dict_add(buf->b_vars, di);
#endif
}
/*
* Free the b_wininfo list for buffer "buf".
*/
static void
clear_wininfo(buf_T *buf)
{
wininfo_T *wip;
while (buf->b_wininfo != NULL)
{
wip = buf->b_wininfo;
buf->b_wininfo = wip->wi_next;
free_wininfo(wip);
}
}
/*
* Free stuff in the buffer for ":bdel" and when wiping out the buffer.
*/
static void
free_buffer_stuff(
buf_T *buf,
int free_options) // free options as well
{
if (free_options)
{
clear_wininfo(buf); // including window-local options
free_buf_options(buf, TRUE);
#ifdef FEAT_SPELL
ga_clear(&buf->b_s.b_langp);
#endif
}
#ifdef FEAT_EVAL
{
varnumber_T tick = CHANGEDTICK(buf);
vars_clear(&buf->b_vars->dv_hashtab); // free all buffer variables
hash_init(&buf->b_vars->dv_hashtab);
init_changedtick(buf);
CHANGEDTICK(buf) = tick;
remove_listeners(buf);
}
#endif
uc_clear(&buf->b_ucmds); // clear local user commands
#ifdef FEAT_SIGNS
buf_delete_signs(buf, (char_u *)"*"); // delete any signs
#endif
#ifdef FEAT_NETBEANS_INTG
netbeans_file_killed(buf);
#endif
#ifdef FEAT_PROP_POPUP
ga_clear_strings(&buf->b_textprop_text);
#endif
map_clear_mode(buf, MAP_ALL_MODES, TRUE, FALSE); // clear local mappings
map_clear_mode(buf, MAP_ALL_MODES, TRUE, TRUE); // clear local abbrevs
VIM_CLEAR(buf->b_start_fenc);
}
/*
* Free one wininfo_T.
*/
void
free_wininfo(wininfo_T *wip)
{
if (wip->wi_optset)
{
clear_winopt(&wip->wi_opt);
#ifdef FEAT_FOLDING
deleteFoldRecurse(&wip->wi_folds);
#endif
}
vim_free(wip);
}
/*
* Go to another buffer. Handles the result of the ATTENTION dialog.
*/
void
goto_buffer(
exarg_T *eap,
int start,
int dir,
int count)
{
bufref_T old_curbuf;
int save_sea = swap_exists_action;
set_bufref(&old_curbuf, curbuf);
if (swap_exists_action == SEA_NONE)
swap_exists_action = SEA_DIALOG;
(void)do_buffer(*eap->cmd == 's' ? DOBUF_SPLIT : DOBUF_GOTO,
start, dir, count, eap->forceit);
if (swap_exists_action == SEA_QUIT && *eap->cmd == 's')
{
#if defined(FEAT_EVAL)
cleanup_T cs;
// Reset the error/interrupt/exception state here so that
// aborting() returns FALSE when closing a window.
enter_cleanup(&cs);
#endif
// Quitting means closing the split window, nothing else.
win_close(curwin, TRUE);
swap_exists_action = save_sea;
swap_exists_did_quit = TRUE;
#if defined(FEAT_EVAL)
// Restore the error/interrupt/exception state if not discarded by a
// new aborting error, interrupt, or uncaught exception.
leave_cleanup(&cs);
#endif
}
else
handle_swap_exists(&old_curbuf);
}
/*
* Handle the situation of swap_exists_action being set.
* It is allowed for "old_curbuf" to be NULL or invalid.
*/
void
handle_swap_exists(bufref_T *old_curbuf)
{
#if defined(FEAT_EVAL)
cleanup_T cs;
#endif
#ifdef FEAT_SYN_HL
long old_tw = curbuf->b_p_tw;
#endif
buf_T *buf;
if (swap_exists_action == SEA_QUIT)
{
#if defined(FEAT_EVAL)
// Reset the error/interrupt/exception state here so that
// aborting() returns FALSE when closing a buffer.
enter_cleanup(&cs);
#endif
// User selected Quit at ATTENTION prompt. Go back to previous
// buffer. If that buffer is gone or the same as the current one,
// open a new, empty buffer.
swap_exists_action = SEA_NONE; // don't want it again
swap_exists_did_quit = TRUE;
close_buffer(curwin, curbuf, DOBUF_UNLOAD, FALSE, FALSE);
if (old_curbuf == NULL || !bufref_valid(old_curbuf)
|| old_curbuf->br_buf == curbuf)
{
// Block autocommands here because curwin->w_buffer is NULL.
block_autocmds();
buf = buflist_new(NULL, NULL, 1L, BLN_CURBUF | BLN_LISTED);
unblock_autocmds();
}
else
buf = old_curbuf->br_buf;
if (buf != NULL)
{
int old_msg_silent = msg_silent;
if (shortmess(SHM_FILEINFO))
msg_silent = 1; // prevent fileinfo message
enter_buffer(buf);
// restore msg_silent, so that the command line will be shown
msg_silent = old_msg_silent;
#ifdef FEAT_SYN_HL
if (old_tw != curbuf->b_p_tw)
check_colorcolumn(curwin);
#endif
}
// If "old_curbuf" is NULL we are in big trouble here...
#if defined(FEAT_EVAL)
// Restore the error/interrupt/exception state if not discarded by a
// new aborting error, interrupt, or uncaught exception.
leave_cleanup(&cs);
#endif
}
else if (swap_exists_action == SEA_RECOVER)
{
#if defined(FEAT_EVAL)
// Reset the error/interrupt/exception state here so that
// aborting() returns FALSE when closing a buffer.
enter_cleanup(&cs);
#endif
// User selected Recover at ATTENTION prompt.
msg_scroll = TRUE;
ml_recover(FALSE);
msg_puts("\n"); // don't overwrite the last message
cmdline_row = msg_row;
do_modelines(0);
#if defined(FEAT_EVAL)
// Restore the error/interrupt/exception state if not discarded by a
// new aborting error, interrupt, or uncaught exception.
leave_cleanup(&cs);
#endif
}
swap_exists_action = SEA_NONE;
}
/*
* Make the current buffer empty.
* Used when it is wiped out and it's the last buffer.
*/
static int
empty_curbuf(
int close_others,
int forceit,
int action)
{
int retval;
buf_T *buf = curbuf;
bufref_T bufref;
if (action == DOBUF_UNLOAD)
{
emsg(_(e_cannot_unload_last_buffer));
return FAIL;
}
set_bufref(&bufref, buf);
if (close_others)
// Close any other windows on this buffer, then make it empty.
close_windows(buf, TRUE);
setpcmark();
retval = do_ecmd(0, NULL, NULL, NULL, ECMD_ONE,
forceit ? ECMD_FORCEIT : 0, curwin);
// do_ecmd() may create a new buffer, then we have to delete
// the old one. But do_ecmd() may have done that already, check
// if the buffer still exists.
if (buf != curbuf && bufref_valid(&bufref) && buf->b_nwindows == 0)
close_buffer(NULL, buf, action, FALSE, FALSE);
if (!close_others)
need_fileinfo = FALSE;
return retval;
}
/*
* Implementation of the commands for the buffer list.
*
* action == DOBUF_GOTO go to specified buffer
* action == DOBUF_SPLIT split window and go to specified buffer
* action == DOBUF_UNLOAD unload specified buffer(s)
* action == DOBUF_DEL delete specified buffer(s) from buffer list
* action == DOBUF_WIPE delete specified buffer(s) really
* action == DOBUF_WIPE_REUSE idem, and add number to "buf_reuse"
*
* start == DOBUF_CURRENT go to "count" buffer from current buffer
* start == DOBUF_FIRST go to "count" buffer from first buffer
* start == DOBUF_LAST go to "count" buffer from last buffer
* start == DOBUF_MOD go to "count" modified buffer from current buffer
*
* Return FAIL or OK.
*/
static int
do_buffer_ext(
int action,
int start,
int dir, // FORWARD or BACKWARD
int count, // buffer number or number of buffers
int flags) // DOBUF_FORCEIT etc.
{
buf_T *buf;
buf_T *bp;
int unload = (action == DOBUF_UNLOAD || action == DOBUF_DEL
|| action == DOBUF_WIPE || action == DOBUF_WIPE_REUSE);
switch (start)
{
case DOBUF_FIRST: buf = firstbuf; break;
case DOBUF_LAST: buf = lastbuf; break;
default: buf = curbuf; break;
}
if (start == DOBUF_MOD) // find next modified buffer
{
while (count-- > 0)
{
do
{
buf = buf->b_next;
if (buf == NULL)
buf = firstbuf;
}
while (buf != curbuf && !bufIsChanged(buf));
}
if (!bufIsChanged(buf))
{
emsg(_(e_no_modified_buffer_found));
return FAIL;
}
}
else if (start == DOBUF_FIRST && count) // find specified buffer number
{
while (buf != NULL && buf->b_fnum != count)
buf = buf->b_next;
}
else
{
bp = NULL;
while (count > 0 || (!unload && !buf->b_p_bl && bp != buf))
{
// remember the buffer where we start, we come back there when all
// buffers are unlisted.
if (bp == NULL)
bp = buf;
if (dir == FORWARD)
{
buf = buf->b_next;
if (buf == NULL)
buf = firstbuf;
}
else
{
buf = buf->b_prev;
if (buf == NULL)
buf = lastbuf;
}
// don't count unlisted buffers
if (unload || buf->b_p_bl)
{
--count;
bp = NULL; // use this buffer as new starting point
}
if (bp == buf)
{
// back where we started, didn't find anything.
emsg(_(e_there_is_no_listed_buffer));
return FAIL;
}
}
}
if (buf == NULL) // could not find it
{
if (start == DOBUF_FIRST)
{
// don't warn when deleting
if (!unload)
semsg(_(e_buffer_nr_does_not_exist), count);
}
else if (dir == FORWARD)
emsg(_(e_cannot_go_beyond_last_buffer));
else
emsg(_(e_cannot_go_before_first_buffer));
return FAIL;
}
#ifdef FEAT_PROP_POPUP
if ((flags & DOBUF_NOPOPUP) && bt_popup(buf) && !bt_terminal(buf))
return OK;
#endif
if (
action == DOBUF_GOTO
&& buf != curbuf
&& !check_can_set_curbuf_forceit((flags & DOBUF_FORCEIT) ? TRUE : FALSE))
// disallow navigating to another buffer when 'winfixbuf' is applied
return FAIL;
if ((action == DOBUF_GOTO || action == DOBUF_SPLIT)
&& (buf->b_flags & BF_DUMMY))
{
// disallow navigating to the dummy buffer
semsg(_(e_buffer_nr_does_not_exist), count);
return FAIL;
}
#ifdef FEAT_GUI
need_mouse_correct = TRUE;
#endif
/*
* delete buffer "buf" from memory and/or the list
*/
if (unload)
{
int forward;
bufref_T bufref;
if (!can_unload_buffer(buf))
return FAIL;
set_bufref(&bufref, buf);
// When unloading or deleting a buffer that's already unloaded and
// unlisted: fail silently.
if (action != DOBUF_WIPE && action != DOBUF_WIPE_REUSE
&& buf->b_ml.ml_mfp == NULL && !buf->b_p_bl)
return FAIL;
if ((flags & DOBUF_FORCEIT) == 0 && bufIsChanged(buf))
{
#if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)
if ((p_confirm || (cmdmod.cmod_flags & CMOD_CONFIRM)) && p_write)
{
# ifdef FEAT_TERMINAL
if (term_job_running(buf->b_term))
{
if (term_confirm_stop(buf) == FAIL)
return FAIL;
}
else
# endif
{
dialog_changed(buf, FALSE);
if (!bufref_valid(&bufref))
// Autocommand deleted buffer, oops! It's not changed
// now.
return FAIL;
// If it's still changed fail silently, the dialog already
// mentioned why it fails.
if (bufIsChanged(buf))
return FAIL;
}
}
else
#endif
{
no_write_message_buf(buf);
return FAIL;
}
}
// When closing the current buffer stop Visual mode.
if (buf == curbuf && VIsual_active)
end_visual_mode();
// If deleting the last (listed) buffer, make it empty.
// The last (listed) buffer cannot be unloaded.
FOR_ALL_BUFFERS(bp)
if (bp->b_p_bl && bp != buf)
break;
if (bp == NULL && buf == curbuf)
return empty_curbuf(TRUE, (flags & DOBUF_FORCEIT), action);
// If the deleted buffer is the current one, close the current window
// (unless it's the only window). Repeat this so long as we end up in
// a window with this buffer.
while (buf == curbuf
&& !(curwin->w_closing || curwin->w_buffer->b_locked > 0)
&& (!ONE_WINDOW || first_tabpage->tp_next != NULL))
{
if (win_close(curwin, FALSE) == FAIL)
break;
}
// If the buffer to be deleted is not the current one, delete it here.
if (buf != curbuf)
{
close_windows(buf, FALSE);
if (buf != curbuf && bufref_valid(&bufref) && buf->b_nwindows <= 0)
close_buffer(NULL, buf, action, FALSE, FALSE);
return OK;
}
/*
* Deleting the current buffer: Need to find another buffer to go to.
* There should be another, otherwise it would have been handled
* above. However, autocommands may have deleted all buffers.
* First use au_new_curbuf.br_buf, if it is valid.
* Then prefer the buffer we most recently visited.
* Else try to find one that is loaded, after the current buffer,
* then before the current buffer.
* Finally use any buffer.
*/
buf = NULL; // selected buffer
bp = NULL; // used when no loaded buffer found
if (au_new_curbuf.br_buf != NULL && bufref_valid(&au_new_curbuf))
buf = au_new_curbuf.br_buf;
else if (curwin->w_jumplistlen > 0)
{
int jumpidx;
jumpidx = curwin->w_jumplistidx - 1;
if (jumpidx < 0)
jumpidx = curwin->w_jumplistlen - 1;
forward = jumpidx;
while (jumpidx != curwin->w_jumplistidx)
{
buf = buflist_findnr(curwin->w_jumplist[jumpidx].fmark.fnum);
if (buf != NULL)
{
// Skip current and unlisted bufs. Also skip a quickfix
// buffer, it might be deleted soon.
if (buf == curbuf || !buf->b_p_bl || bt_quickfix(buf))
buf = NULL;
else if (buf->b_ml.ml_mfp == NULL)
{
// skip unloaded buf, but may keep it for later
if (bp == NULL)
bp = buf;
buf = NULL;
}
}
if (buf != NULL) // found a valid buffer: stop searching
break;
// advance to older entry in jump list
if (!jumpidx && curwin->w_jumplistidx == curwin->w_jumplistlen)
break;
if (--jumpidx < 0)
jumpidx = curwin->w_jumplistlen - 1;
if (jumpidx == forward) // List exhausted for sure
break;
}
}
if (buf == NULL) // No previous buffer, Try 2'nd approach
{
forward = TRUE;
buf = curbuf->b_next;
for (;;)
{
if (buf == NULL)
{
if (!forward) // tried both directions
break;
buf = curbuf->b_prev;
forward = FALSE;
continue;
}
// in non-help buffer, try to skip help buffers, and vv
if (buf->b_help == curbuf->b_help && buf->b_p_bl
&& !bt_quickfix(buf))
{
if (buf->b_ml.ml_mfp != NULL) // found loaded buffer
break;
if (bp == NULL) // remember unloaded buf for later
bp = buf;
}
if (forward)
buf = buf->b_next;
else
buf = buf->b_prev;
}
}
if (buf == NULL) // No loaded buffer, use unloaded one
buf = bp;
if (buf == NULL) // No loaded buffer, find listed one
{
FOR_ALL_BUFFERS(buf)
if (buf->b_p_bl && buf != curbuf && !bt_quickfix(buf))
break;
}
if (buf == NULL) // Still no buffer, just take one
{
if (curbuf->b_next != NULL)
buf = curbuf->b_next;
else
buf = curbuf->b_prev;
if (bt_quickfix(buf))
buf = NULL;
}
}
if (buf == NULL)
{
// Autocommands must have wiped out all other buffers. Only option
// now is to make the current buffer empty.
return empty_curbuf(FALSE, (flags & DOBUF_FORCEIT), action);
}
/*
* make "buf" the current buffer
*/
if (action == DOBUF_SPLIT) // split window first
{
// If 'switchbuf' is set jump to the window containing "buf".
if (swbuf_goto_win_with_buf(buf) != NULL)
return OK;
if (win_split(0, 0) == FAIL)
return FAIL;
}
// go to current buffer - nothing to do
if (buf == curbuf)
return OK;
// Check if the current buffer may be abandoned.
if (action == DOBUF_GOTO && !can_abandon(curbuf, (flags & DOBUF_FORCEIT)))
{
#if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)
if ((p_confirm || (cmdmod.cmod_flags & CMOD_CONFIRM)) && p_write)
{
# ifdef FEAT_TERMINAL
if (term_job_running(curbuf->b_term))
{
if (term_confirm_stop(curbuf) == FAIL)
return FAIL;
// Manually kill the terminal here because this command will
// hide it otherwise.
free_terminal(curbuf);
}
else
# endif
{
bufref_T bufref;
set_bufref(&bufref, buf);
dialog_changed(curbuf, FALSE);
if (!bufref_valid(&bufref))
// Autocommand deleted buffer, oops!
return FAIL;
if (bufIsChanged(curbuf))
{
no_write_message();
return FAIL;
}
}
}
else
#endif
{
no_write_message();
return FAIL;
}
}
// Go to the other buffer.
set_curbuf(buf, action);
if (action == DOBUF_SPLIT)
RESET_BINDING(curwin); // reset 'scrollbind' and 'cursorbind'
#if defined(FEAT_EVAL)
if (aborting()) // autocmds may abort script processing
return FAIL;
#endif
return OK;
}
int
do_buffer(
int action,
int start,
int dir, // FORWARD or BACKWARD
int count, // buffer number or number of buffers
int forceit) // TRUE when using !
{
return do_buffer_ext(action, start, dir, count,
forceit ? DOBUF_FORCEIT : 0);
}
/*
* do_bufdel() - delete or unload buffer(s)
*
* addr_count == 0: ":bdel" - delete current buffer
* addr_count == 1: ":N bdel" or ":bdel N [N ..]" - first delete
* buffer "end_bnr", then any other arguments.
* addr_count == 2: ":N,N bdel" - delete buffers in range
*
* command can be DOBUF_UNLOAD (":bunload"), DOBUF_WIPE (":bwipeout") or
* DOBUF_DEL (":bdel")
*
* Returns error message or NULL
*/
char *
do_bufdel(
int command,
char_u *arg, // pointer to extra arguments
int addr_count,
int start_bnr, // first buffer number in a range
int end_bnr, // buffer nr or last buffer nr in a range
int forceit)
{
int do_current = 0; // delete current buffer?
int deleted = 0; // number of buffers deleted
char *errormsg = NULL; // return value
int bnr; // buffer number
char_u *p;
if (addr_count == 0)
{
(void)do_buffer(command, DOBUF_CURRENT, FORWARD, 0, forceit);
}
else
{
if (addr_count == 2)
{
if (*arg) // both range and argument is not allowed
return ex_errmsg(e_trailing_characters_str, arg);
bnr = start_bnr;
}
else // addr_count == 1
bnr = end_bnr;
for ( ;!got_int; ui_breakcheck())
{
// Delete the current buffer last, otherwise when the
// current buffer is deleted, the next buffer becomes
// the current one and will be loaded, which may then
// also be deleted, etc.
if (bnr == curbuf->b_fnum)
do_current = bnr;
else if (do_buffer_ext(command, DOBUF_FIRST, FORWARD, bnr,
DOBUF_NOPOPUP | (forceit ? DOBUF_FORCEIT : 0)) == OK)
++deleted;
// find next buffer number to delete/unload
if (addr_count == 2)
{
if (++bnr > end_bnr)
break;
}
else // addr_count == 1
{
arg = skipwhite(arg);
if (*arg == NUL)
break;
if (!VIM_ISDIGIT(*arg))
{
p = skiptowhite_esc(arg);
bnr = buflist_findpat(arg, p,
command == DOBUF_WIPE || command == DOBUF_WIPE_REUSE,
FALSE, FALSE);
if (bnr < 0) // failed
break;
arg = p;
}
else
bnr = getdigits(&arg);
}
}
if (!got_int && do_current && do_buffer(command, DOBUF_FIRST,
FORWARD, do_current, forceit) == OK)
++deleted;
if (deleted == 0)
{
if (command == DOBUF_UNLOAD)
STRCPY(IObuff, _(e_no_buffers_were_unloaded));
else if (command == DOBUF_DEL)
STRCPY(IObuff, _(e_no_buffers_were_deleted));
else
STRCPY(IObuff, _(e_no_buffers_were_wiped_out));
errormsg = (char *)IObuff;
}
else if (deleted >= p_report)
{
if (command == DOBUF_UNLOAD)
smsg(NGETTEXT("%d buffer unloaded",
"%d buffers unloaded", deleted), deleted);
else if (command == DOBUF_DEL)
smsg(NGETTEXT("%d buffer deleted",
"%d buffers deleted", deleted), deleted);
else
smsg(NGETTEXT("%d buffer wiped out",
"%d buffers wiped out", deleted), deleted);
}
}
return errormsg;
}
/*
* Set current buffer to "buf". Executes autocommands and closes current
* buffer. "action" tells how to close the current buffer:
* DOBUF_GOTO free or hide it
* DOBUF_SPLIT nothing
* DOBUF_UNLOAD unload it
* DOBUF_DEL delete it
* DOBUF_WIPE wipe it out
* DOBUF_WIPE_REUSE wipe it out and add to "buf_reuse"
*/
void
set_curbuf(buf_T *buf, int action)
{
buf_T *prevbuf;
int unload = (action == DOBUF_UNLOAD || action == DOBUF_DEL
|| action == DOBUF_WIPE || action == DOBUF_WIPE_REUSE);
#ifdef FEAT_SYN_HL
long old_tw = curbuf->b_p_tw;
#endif
bufref_T newbufref;
bufref_T prevbufref;
int valid;
int last_winid = get_last_winid();
setpcmark();
if ((cmdmod.cmod_flags & CMOD_KEEPALT) == 0)
curwin->w_alt_fnum = curbuf->b_fnum; // remember alternate file
buflist_altfpos(curwin); // remember curpos
// Don't restart Select mode after switching to another buffer.
VIsual_reselect = FALSE;
// close_windows() or apply_autocmds() may change curbuf and wipe out "buf"
prevbuf = curbuf;
set_bufref(&prevbufref, prevbuf);
set_bufref(&newbufref, buf);
// Autocommands may delete the current buffer and/or the buffer we want to
// go to. In those cases don't close the buffer.
if (!apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf)
|| (bufref_valid(&prevbufref)
&& bufref_valid(&newbufref)
#ifdef FEAT_EVAL
&& !aborting()
#endif
))
{
#ifdef FEAT_SYN_HL
if (prevbuf == curwin->w_buffer)
reset_synblock(curwin);
#endif
// autocommands may have opened a new window
// with prevbuf, grr
if (unload ||
(last_winid != get_last_winid() &&
strchr((char *)"wdu", prevbuf->b_p_bh[0]) != NULL))
close_windows(prevbuf, FALSE);
#if defined(FEAT_EVAL)
if (bufref_valid(&prevbufref) && !aborting())
#else
if (bufref_valid(&prevbufref))
#endif
{
win_T *previouswin = curwin;
// Do not sync when in Insert mode and the buffer is open in
// another window, might be a timer doing something in another
// window.
if (prevbuf == curbuf
&& ((State & MODE_INSERT) == 0 || curbuf->b_nwindows <= 1))
u_sync(FALSE);
close_buffer(prevbuf == curwin->w_buffer ? curwin : NULL, prevbuf,
unload ? action : (action == DOBUF_GOTO
&& !buf_hide(prevbuf)
&& !bufIsChanged(prevbuf)) ? DOBUF_UNLOAD : 0,
FALSE, FALSE);
if (curwin != previouswin && win_valid(previouswin))
// autocommands changed curwin, Grr!
curwin = previouswin;
}
}
// An autocommand may have deleted "buf", already entered it (e.g., when
// it did ":bunload") or aborted the script processing.
// If curwin->w_buffer is null, enter_buffer() will make it valid again
valid = buf_valid(buf);
if ((valid && buf != curbuf
#ifdef FEAT_EVAL
&& !aborting()
#endif
) || curwin->w_buffer == NULL)
{
// autocommands changed curbuf and we will move to another
// buffer soon, so decrement curbuf->b_nwindows
if (curbuf != NULL && prevbuf != curbuf)
curbuf->b_nwindows--;
// If the buffer is not valid but curwin->w_buffer is NULL we must
// enter some buffer. Using the last one is hopefully OK.
if (!valid)
enter_buffer(lastbuf);
else
enter_buffer(buf);
#ifdef FEAT_SYN_HL
if (old_tw != curbuf->b_p_tw)
check_colorcolumn(curwin);
#endif
}
}
/*
* Enter a new current buffer.
* Old curbuf must have been abandoned already! This also means "curbuf" may
* be pointing to freed memory.
*/
static void
enter_buffer(buf_T *buf)
{
// when closing the current buffer stop Visual mode
if (VIsual_active
#if defined(EXITFREE)
&& !entered_free_all_mem
#endif
)
end_visual_mode();
// Get the buffer in the current window.
curwin->w_buffer = buf;
curbuf = buf;
++curbuf->b_nwindows;
// Copy buffer and window local option values. Not for a help buffer.
buf_copy_options(buf, BCO_ENTER | BCO_NOHELP);
if (!buf->b_help)
get_winopts(buf);
#ifdef FEAT_FOLDING
else
// Remove all folds in the window.
clearFolding(curwin);
foldUpdateAll(curwin); // update folds (later).
#endif
#ifdef FEAT_DIFF
if (curwin->w_p_diff)
diff_buf_add(curbuf);
#endif
#ifdef FEAT_SYN_HL
curwin->w_s = &(curbuf->b_s);
#endif
// Cursor on first line by default.
curwin->w_cursor.lnum = 1;
curwin->w_cursor.col = 0;
curwin->w_cursor.coladd = 0;
curwin->w_set_curswant = TRUE;
curwin->w_topline_was_set = FALSE;
// mark cursor position as being invalid
curwin->w_valid = 0;
buflist_setfpos(curbuf, curwin, curbuf->b_last_cursor.lnum,
curbuf->b_last_cursor.col, TRUE);
// Make sure the buffer is loaded.
if (curbuf->b_ml.ml_mfp == NULL) // need to load the file
{
// If there is no filetype, allow for detecting one. Esp. useful for
// ":ball" used in an autocommand. If there already is a filetype we
// might prefer to keep it.
if (*curbuf->b_p_ft == NUL)
curbuf->b_did_filetype = FALSE;
open_buffer(FALSE, NULL, 0);
}
else
{
if (!msg_silent && !shortmess(SHM_FILEINFO))
need_fileinfo = TRUE; // display file info after redraw
// check if file changed
(void)buf_check_timestamp(curbuf, FALSE);
curwin->w_topline = 1;
#ifdef FEAT_DIFF
curwin->w_topfill = 0;
#endif
apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf);
apply_autocmds(EVENT_BUFWINENTER, NULL, NULL, FALSE, curbuf);
}
// If autocommands did not change the cursor position, restore cursor lnum
// and possibly cursor col.
if (curwin->w_cursor.lnum == 1 && inindent(0))
buflist_getfpos();
check_arg_idx(curwin); // check for valid arg_idx
maketitle();
// when autocmds didn't change it
if (curwin->w_topline == 1 && !curwin->w_topline_was_set)
scroll_cursor_halfway(FALSE, FALSE); // redisplay at correct position
#ifdef FEAT_NETBEANS_INTG
// Send fileOpened event because we've changed buffers.
netbeans_file_activated(curbuf);
#endif
// Change directories when the 'acd' option is set.
DO_AUTOCHDIR;
#ifdef FEAT_KEYMAP
if (curbuf->b_kmap_state & KEYMAP_INIT)
(void)keymap_init();
#endif
#ifdef FEAT_SPELL
// May need to set the spell language. Can only do this after the buffer
// has been properly setup.
if (!curbuf->b_help && curwin->w_p_spell && *curwin->w_s->b_p_spl != NUL)
(void)parse_spelllang(curwin);
#endif
#ifdef FEAT_VIMINFO
curbuf->b_last_used = vim_time();
#endif
redraw_later(UPD_NOT_VALID);
}
#if defined(FEAT_AUTOCHDIR) || defined(PROTO)
/*
* Change to the directory of the current buffer.
* Don't do this while still starting up.
*/
void
do_autochdir(void)
{
if ((starting == 0 || test_autochdir)
&& curbuf->b_ffname != NULL
&& vim_chdirfile(curbuf->b_ffname, "auto") == OK)
{
shorten_fnames(TRUE);
last_chdir_reason = "autochdir";
}
}
#endif
static void
no_write_message_buf(buf_T *buf UNUSED)
{
#ifdef FEAT_TERMINAL
if (term_job_running(buf->b_term))
emsg(_(e_job_still_running_add_bang_to_end_the_job));
else
#endif
semsg(_(e_no_write_since_last_change_for_buffer_nr_add_bang_to_override),
buf->b_fnum);
}
void
no_write_message(void)
{
#ifdef FEAT_TERMINAL
if (term_job_running(curbuf->b_term))
emsg(_(e_job_still_running_add_bang_to_end_the_job));
else
#endif
emsg(_(e_no_write_since_last_change_add_bang_to_override));
}
void
no_write_message_nobang(buf_T *buf UNUSED)
{
#ifdef FEAT_TERMINAL
if (term_job_running(buf->b_term))
emsg(_(e_job_still_running));
else
#endif
emsg(_(e_no_write_since_last_change));
}
/*
* functions for dealing with the buffer list
*/
/*
* Return TRUE if the current buffer is empty, unnamed, unmodified and used in
* only one window. That means it can be re-used.
*/
int
curbuf_reusable(void)
{
return (curbuf != NULL
&& curbuf->b_ffname == NULL
&& curbuf->b_nwindows <= 1
&& (curbuf->b_ml.ml_mfp == NULL || BUFEMPTY())
&& !bt_quickfix(curbuf)
&& !curbufIsChanged());
}
/*
* Add a file name to the buffer list. Return a pointer to the buffer.
* If the same file name already exists return a pointer to that buffer.
* If it does not exist, or if fname == NULL, a new entry is created.
* If (flags & BLN_CURBUF) is TRUE, may use current buffer.
* If (flags & BLN_LISTED) is TRUE, add new buffer to buffer list.
* If (flags & BLN_DUMMY) is TRUE, don't count it as a real buffer.
* If (flags & BLN_NEW) is TRUE, don't use an existing buffer.
* If (flags & BLN_NOOPT) is TRUE, don't copy options from the current buffer
* if the buffer already exists.
* If (flags & BLN_REUSE) is TRUE, may use buffer number from "buf_reuse".
* This is the ONLY way to create a new buffer.
*/
buf_T *
buflist_new(
char_u *ffname_arg, // full path of fname or relative
char_u *sfname_arg, // short fname or NULL
linenr_T lnum, // preferred cursor line
int flags) // BLN_ defines
{
char_u *ffname = ffname_arg;
char_u *sfname = sfname_arg;
buf_T *buf;
#ifdef UNIX
stat_T st;
#endif
if (top_file_num == 1)
hash_init(&buf_hashtab);
fname_expand(curbuf, &ffname, &sfname); // will allocate ffname
/*
* If the file name already exists in the list, update the entry.
*/
#ifdef UNIX
// On Unix we can use inode numbers when the file exists. Works better
// for hard links.
if (sfname == NULL || mch_stat((char *)sfname, &st) < 0)
st.st_dev = (dev_T)-1;
#endif
if (ffname != NULL && !(flags & (BLN_DUMMY | BLN_NEW)) && (buf =
#ifdef UNIX
buflist_findname_stat(ffname, &st)
#else
buflist_findname(ffname)
#endif
) != NULL)
{
vim_free(ffname);
if (lnum != 0)
buflist_setfpos(buf, (flags & BLN_NOCURWIN) ? NULL : curwin,
lnum, (colnr_T)0, FALSE);
if ((flags & BLN_NOOPT) == 0)
// copy the options now, if 'cpo' doesn't have 's' and not done
// already
buf_copy_options(buf, 0);
if ((flags & BLN_LISTED) && !buf->b_p_bl)
{
bufref_T bufref;
buf->b_p_bl = TRUE;
set_bufref(&bufref, buf);
if (!(flags & BLN_DUMMY))
{
if (apply_autocmds(EVENT_BUFADD, NULL, NULL, FALSE, buf)
&& !bufref_valid(&bufref))
return NULL;
}
}
return buf;
}
/*
* If the current buffer has no name and no contents, use the current
* buffer. Otherwise: Need to allocate a new buffer structure.
*
* This is the ONLY place where a new buffer structure is allocated!
* (A spell file buffer is allocated in spell.c, but that's not a normal
* buffer.)
*/
buf = NULL;
if ((flags & BLN_CURBUF) && curbuf_reusable())
{
buf = curbuf;
// It's like this buffer is deleted. Watch out for autocommands that
// change curbuf! If that happens, allocate a new buffer anyway.
buf_freeall(buf, BFA_WIPE | BFA_DEL);
if (buf != curbuf) // autocommands deleted the buffer!
return NULL;
#ifdef FEAT_EVAL
if (aborting()) // autocmds may abort script processing
{
vim_free(ffname);
return NULL;
}
#endif
}
if (buf != curbuf || curbuf == NULL)
{
buf = ALLOC_CLEAR_ONE(buf_T);
if (buf == NULL)
{
vim_free(ffname);
return NULL;
}
#ifdef FEAT_EVAL
// init b: variables
buf->b_vars = dict_alloc_id(aid_newbuf_bvars);
if (buf->b_vars == NULL)
{
vim_free(ffname);
vim_free(buf);
return NULL;
}
init_var_dict(buf->b_vars, &buf->b_bufvar, VAR_SCOPE);
#endif
init_changedtick(buf);
}
if (ffname != NULL)
{
buf->b_ffname = ffname;
buf->b_sfname = vim_strsave(sfname);
}
clear_wininfo(buf);
buf->b_wininfo = ALLOC_CLEAR_ONE(wininfo_T);
if ((ffname != NULL && (buf->b_ffname == NULL || buf->b_sfname == NULL))
|| buf->b_wininfo == NULL)
{
if (buf->b_sfname != buf->b_ffname)
VIM_CLEAR(buf->b_sfname);
else
buf->b_sfname = NULL;
VIM_CLEAR(buf->b_ffname);
if (buf != curbuf)
free_buffer(buf);
return NULL;
}
if (buf == curbuf)
{
free_buffer_stuff(buf, FALSE); // delete local variables et al.
// Init the options.
buf->b_p_initialized = FALSE;
buf_copy_options(buf, BCO_ENTER);
#ifdef FEAT_KEYMAP
// need to reload lmaps and set b:keymap_name
curbuf->b_kmap_state |= KEYMAP_INIT;
#endif
}
else
{
// put the new buffer at the end of the buffer list
buf->b_next = NULL;
if (firstbuf == NULL) // buffer list is empty
{
buf->b_prev = NULL;
firstbuf = buf;
}
else // append new buffer at end of list
{
lastbuf->b_next = buf;
buf->b_prev = lastbuf;
}
lastbuf = buf;
if ((flags & BLN_REUSE) && buf_reuse.ga_len > 0)
{
// Recycle a previously used buffer number. Used for buffers which
// are normally hidden, e.g. in a popup window. Avoids that the
// buffer number grows rapidly.
--buf_reuse.ga_len;
buf->b_fnum = ((int *)buf_reuse.ga_data)[buf_reuse.ga_len];
// Move buffer to the right place in the buffer list.
while (buf->b_prev != NULL && buf->b_fnum < buf->b_prev->b_fnum)
{
buf_T *prev = buf->b_prev;
prev->b_next = buf->b_next;
if (prev->b_next != NULL)
prev->b_next->b_prev = prev;
buf->b_next = prev;
buf->b_prev = prev->b_prev;
if (buf->b_prev != NULL)
buf->b_prev->b_next = buf;
prev->b_prev = buf;
if (lastbuf == buf)
lastbuf = prev;
if (firstbuf == prev)
firstbuf = buf;
}
}
else
buf->b_fnum = top_file_num++;
if (top_file_num < 0) // wrap around (may cause duplicates)
{
emsg(_("W14: Warning: List of file names overflow"));
if (emsg_silent == 0 && !in_assert_fails)
{
out_flush();
ui_delay(3001L, TRUE); // make sure it is noticed
}
top_file_num = 1;
}
buf_hashtab_add(buf);
// Always copy the options from the current buffer.
buf_copy_options(buf, BCO_ALWAYS);
}
buf->b_wininfo->wi_fpos.lnum = lnum;
buf->b_wininfo->wi_win = curwin;
#ifdef FEAT_SYN_HL
hash_init(&buf->b_s.b_keywtab);
hash_init(&buf->b_s.b_keywtab_ic);
#endif
buf->b_fname = buf->b_sfname;
#ifdef UNIX
if (st.st_dev == (dev_T)-1)
buf->b_dev_valid = FALSE;
else
{
buf->b_dev_valid = TRUE;
buf->b_dev = st.st_dev;
buf->b_ino = st.st_ino;
}
#endif
buf->b_u_synced = TRUE;
buf->b_flags = BF_CHECK_RO | BF_NEVERLOADED;
if (flags & BLN_DUMMY)
buf->b_flags |= BF_DUMMY;
buf_clear_file(buf);
clrallmarks(buf); // clear marks
fmarks_check_names(buf); // check file marks for this file
buf->b_p_bl = (flags & BLN_LISTED) ? TRUE : FALSE; // init 'buflisted'
if (!(flags & BLN_DUMMY))
{
bufref_T bufref;
// Tricky: these autocommands may change the buffer list. They could
// also split the window with re-using the one empty buffer. This may
// result in unexpectedly losing the empty buffer.
set_bufref(&bufref, buf);
if (apply_autocmds(EVENT_BUFNEW, NULL, NULL, FALSE, buf)
&& !bufref_valid(&bufref))
return NULL;
if (flags & BLN_LISTED)
{
if (apply_autocmds(EVENT_BUFADD, NULL, NULL, FALSE, buf)
&& !bufref_valid(&bufref))
return NULL;
}
#ifdef FEAT_EVAL
if (aborting()) // autocmds may abort script processing
return NULL;
#endif
}
return buf;
}
/*
* Free the memory for the options of a buffer.
* If "free_p_ff" is TRUE also free 'fileformat', 'buftype' and
* 'fileencoding'.
*/
void
free_buf_options(
buf_T *buf,
int free_p_ff)
{
if (free_p_ff)
{
clear_string_option(&buf->b_p_fenc);
clear_string_option(&buf->b_p_ff);
clear_string_option(&buf->b_p_bh);
clear_string_option(&buf->b_p_bt);
}
#ifdef FEAT_FIND_ID
clear_string_option(&buf->b_p_def);
clear_string_option(&buf->b_p_inc);
# ifdef FEAT_EVAL
clear_string_option(&buf->b_p_inex);
# endif
#endif
#if defined(FEAT_EVAL)
clear_string_option(&buf->b_p_inde);
clear_string_option(&buf->b_p_indk);
#endif
#if defined(FEAT_BEVAL) && defined(FEAT_EVAL)
clear_string_option(&buf->b_p_bexpr);
#endif
#if defined(FEAT_CRYPT)
clear_string_option(&buf->b_p_cm);
#endif
clear_string_option(&buf->b_p_fp);
#if defined(FEAT_EVAL)
clear_string_option(&buf->b_p_fex);
#endif
#ifdef FEAT_CRYPT
# ifdef FEAT_SODIUM
if (buf->b_p_key != NULL && *buf->b_p_key != NUL
&& crypt_method_is_sodium(crypt_get_method_nr(buf)))
crypt_sodium_munlock(buf->b_p_key, STRLEN(buf->b_p_key));
# endif
clear_string_option(&buf->b_p_key);
#endif
clear_string_option(&buf->b_p_kp);
clear_string_option(&buf->b_p_mps);
clear_string_option(&buf->b_p_fo);
clear_string_option(&buf->b_p_flp);
clear_string_option(&buf->b_p_isk);
#ifdef FEAT_VARTABS
clear_string_option(&buf->b_p_vsts);
VIM_CLEAR(buf->b_p_vsts_nopaste);
VIM_CLEAR(buf->b_p_vsts_array);
clear_string_option(&buf->b_p_vts);
VIM_CLEAR(buf->b_p_vts_array);
#endif
#ifdef FEAT_KEYMAP
clear_string_option(&buf->b_p_keymap);
keymap_clear(&buf->b_kmap_ga);
ga_clear(&buf->b_kmap_ga);
#endif
clear_string_option(&buf->b_p_com);
#ifdef FEAT_FOLDING
clear_string_option(&buf->b_p_cms);
#endif
clear_string_option(&buf->b_p_nf);
#ifdef FEAT_SYN_HL
clear_string_option(&buf->b_p_syn);
clear_string_option(&buf->b_s.b_syn_isk);
#endif
#ifdef FEAT_SPELL
clear_string_option(&buf->b_s.b_p_spc);
clear_string_option(&buf->b_s.b_p_spf);
vim_regfree(buf->b_s.b_cap_prog);
buf->b_s.b_cap_prog = NULL;
clear_string_option(&buf->b_s.b_p_spl);
clear_string_option(&buf->b_s.b_p_spo);
#endif
clear_string_option(&buf->b_p_sua);
clear_string_option(&buf->b_p_ft);
clear_string_option(&buf->b_p_cink);
clear_string_option(&buf->b_p_cino);
clear_string_option(&buf->b_p_lop);
clear_string_option(&buf->b_p_cinsd);
clear_string_option(&buf->b_p_cinw);
clear_string_option(&buf->b_p_cot);
clear_string_option(&buf->b_p_cpt);
#ifdef FEAT_COMPL_FUNC
clear_string_option(&buf->b_p_cfu);
free_callback(&buf->b_cfu_cb);
clear_string_option(&buf->b_p_ofu);
free_callback(&buf->b_ofu_cb);
clear_string_option(&buf->b_p_tsrfu);
free_callback(&buf->b_tsrfu_cb);
#endif
#ifdef FEAT_QUICKFIX
clear_string_option(&buf->b_p_gp);
clear_string_option(&buf->b_p_mp);
clear_string_option(&buf->b_p_efm);
#endif
clear_string_option(&buf->b_p_ep);
clear_string_option(&buf->b_p_path);
clear_string_option(&buf->b_p_tags);
clear_string_option(&buf->b_p_tc);
#ifdef FEAT_EVAL
clear_string_option(&buf->b_p_tfu);
free_callback(&buf->b_tfu_cb);
#endif
clear_string_option(&buf->b_p_dict);
clear_string_option(&buf->b_p_tsr);
clear_string_option(&buf->b_p_qe);
buf->b_p_ar = -1;
buf->b_p_ul = NO_LOCAL_UNDOLEVEL;
clear_string_option(&buf->b_p_lw);
clear_string_option(&buf->b_p_bkc);
clear_string_option(&buf->b_p_menc);
}
/*
* Get alternate file "n".
* Set linenr to "lnum" or altfpos.lnum if "lnum" == 0.
* Also set cursor column to altfpos.col if 'startofline' is not set.
* if (options & GETF_SETMARK) call setpcmark()
* if (options & GETF_ALT) we are jumping to an alternate file.
* if (options & GETF_SWITCH) respect 'switchbuf' settings when jumping
*
* Return FAIL for failure, OK for success.
*/
int
buflist_getfile(
int n,
linenr_T lnum,
int options,
int forceit)
{
buf_T *buf;
win_T *wp = NULL;
pos_T *fpos;
colnr_T col;
buf = buflist_findnr(n);
if (buf == NULL)
{
if ((options & GETF_ALT) && n == 0)
emsg(_(e_no_alternate_file));
else
semsg(_(e_buffer_nr_not_found), n);
return FAIL;
}
// if alternate file is the current buffer, nothing to do
if (buf == curbuf)
return OK;
if (text_or_buf_locked())
return FAIL;
// altfpos may be changed by getfile(), get it now
if (lnum == 0)
{
fpos = buflist_findfpos(buf);
lnum = fpos->lnum;
col = fpos->col;
}
else
col = 0;
if (options & GETF_SWITCH)
{
// If 'switchbuf' is set jump to the window containing "buf".
wp = swbuf_goto_win_with_buf(buf);
// If 'switchbuf' contains "split", "vsplit" or "newtab" and the
// current buffer isn't empty: open new tab or window
if (wp == NULL && (swb_flags & (SWB_VSPLIT | SWB_SPLIT | SWB_NEWTAB))
&& !BUFEMPTY())
{
if (swb_flags & SWB_NEWTAB)
tabpage_new();
else if (win_split(0, (swb_flags & SWB_VSPLIT) ? WSP_VERT : 0)
== FAIL)
return FAIL;
RESET_BINDING(curwin);
}
}
++RedrawingDisabled;
int retval = FAIL;
if (GETFILE_SUCCESS(getfile(buf->b_fnum, NULL, NULL,
(options & GETF_SETMARK), lnum, forceit)))
{
// cursor is at to BOL and w_cursor.lnum is checked due to getfile()
if (!p_sol && col != 0)
{
curwin->w_cursor.col = col;
check_cursor_col();
curwin->w_cursor.coladd = 0;
curwin->w_set_curswant = TRUE;
}
retval = OK;
}
if (RedrawingDisabled > 0)
--RedrawingDisabled;
return retval;
}
/*
* go to the last know line number for the current buffer
*/
static void
buflist_getfpos(void)
{
pos_T *fpos;
fpos = buflist_findfpos(curbuf);
curwin->w_cursor.lnum = fpos->lnum;
check_cursor_lnum();
if (p_sol)
curwin->w_cursor.col = 0;
else
{
curwin->w_cursor.col = fpos->col;
check_cursor_col();
curwin->w_cursor.coladd = 0;
curwin->w_set_curswant = TRUE;
}
}
/*
* Find file in buffer list by name (it has to be for the current window).
* Returns NULL if not found.
*/
buf_T *
buflist_findname_exp(char_u *fname)
{
char_u *ffname;
buf_T *buf = NULL;
// First make the name into a full path name
ffname = FullName_save(fname,
#ifdef UNIX
TRUE // force expansion, get rid of symbolic links
#else
FALSE
#endif
);
if (ffname != NULL)
{
buf = buflist_findname(ffname);
vim_free(ffname);
}
return buf;
}
/*
* Find file in buffer list by name (it has to be for the current window).
* "ffname" must have a full path.
* Skips dummy buffers.
* Returns NULL if not found.
*/
buf_T *
buflist_findname(char_u *ffname)
{
#ifdef UNIX
stat_T st;
if (mch_stat((char *)ffname, &st) < 0)
st.st_dev = (dev_T)-1;
return buflist_findname_stat(ffname, &st);
}
/*
* Same as buflist_findname(), but pass the stat structure to avoid getting it
* twice for the same file.
* Returns NULL if not found.
*/
static buf_T *
buflist_findname_stat(
char_u *ffname,
stat_T *stp)
{
#endif
buf_T *buf;
// Start at the last buffer, expect to find a match sooner.
FOR_ALL_BUFS_FROM_LAST(buf)
if ((buf->b_flags & BF_DUMMY) == 0 && !otherfile_buf(buf, ffname
#ifdef UNIX
, stp
#endif
))
return buf;
return NULL;
}
/*
* Find file in buffer list by a regexp pattern.
* Return fnum of the found buffer.
* Return < 0 for error.
*/
int
buflist_findpat(
char_u *pattern,
char_u *pattern_end, // pointer to first char after pattern
int unlisted, // find unlisted buffers
int diffmode UNUSED, // find diff-mode buffers only
int curtab_only) // find buffers in current tab only
{
buf_T *buf;
int match = -1;
int find_listed;
char_u *pat;
char_u *patend;
int attempt;
char_u *p;
int toggledollar;
// "%" is current file, "%%" or "#" is alternate file
if ((pattern_end == pattern + 1 && (*pattern == '%' || *pattern == '#'))
|| (in_vim9script() && pattern_end == pattern + 2
&& pattern[0] == '%' && pattern[1] == '%'))
{
if (*pattern == '#' || pattern_end == pattern + 2)
match = curwin->w_alt_fnum;
else
match = curbuf->b_fnum;
#ifdef FEAT_DIFF
if (diffmode && !diff_mode_buf(buflist_findnr(match)))
match = -1;
#endif
}
/*
* Try four ways of matching a listed buffer:
* attempt == 0: without '^' or '$' (at any position)
* attempt == 1: with '^' at start (only at position 0)
* attempt == 2: with '$' at end (only match at end)
* attempt == 3: with '^' at start and '$' at end (only full match)
* Repeat this for finding an unlisted buffer if there was no matching
* listed buffer.
*/
else
{
pat = file_pat_to_reg_pat(pattern, pattern_end, NULL, FALSE);
if (pat == NULL)
return -1;
patend = pat + STRLEN(pat) - 1;
toggledollar = (patend > pat && *patend == '$');
// First try finding a listed buffer. If not found and "unlisted"
// is TRUE, try finding an unlisted buffer.
find_listed = TRUE;
for (;;)
{
for (attempt = 0; attempt <= 3; ++attempt)
{
regmatch_T regmatch;
// may add '^' and '$'
if (toggledollar)
*patend = (attempt < 2) ? NUL : '$'; // add/remove '$'
p = pat;
if (*p == '^' && !(attempt & 1)) // add/remove '^'
++p;
regmatch.regprog = vim_regcomp(p, magic_isset() ? RE_MAGIC : 0);
FOR_ALL_BUFS_FROM_LAST(buf)
{
if (regmatch.regprog == NULL)
{
// invalid pattern, possibly after switching engine
vim_free(pat);
return -1;
}
if (buf->b_p_bl == find_listed
#ifdef FEAT_DIFF
&& (!diffmode || diff_mode_buf(buf))
#endif
&& buflist_match(&regmatch, buf, FALSE) != NULL)
{
if (curtab_only)
{
// Ignore the match if the buffer is not open in
// the current tab.
win_T *wp;
FOR_ALL_WINDOWS(wp)
if (wp->w_buffer == buf)
break;
if (wp == NULL)
continue;
}
if (match >= 0) // already found a match
{
match = -2;
break;
}
match = buf->b_fnum; // remember first match
}
}
vim_regfree(regmatch.regprog);
if (match >= 0) // found one match
break;
}
// Only search for unlisted buffers if there was no match with
// a listed buffer.
if (!unlisted || !find_listed || match != -1)
break;
find_listed = FALSE;
}
vim_free(pat);
}
if (match == -2)
semsg(_(e_more_than_one_match_for_str), pattern);
else if (match < 0)
semsg(_(e_no_matching_buffer_for_str), pattern);
return match;
}
#ifdef FEAT_VIMINFO
typedef struct {
buf_T *buf;
char_u *match;
} bufmatch_T;
#endif
/*
* Find all buffer names that match.
* For command line expansion of ":buf" and ":sbuf".
* Return OK if matches found, FAIL otherwise.
*/
int
ExpandBufnames(
char_u *pat,
int *num_file,
char_u ***file,
int options)
{
int count;
buf_T *buf;
int round;
char_u *p;
char_u *patc = NULL;
#ifdef FEAT_VIMINFO
bufmatch_T *matches = NULL;
#endif
int fuzzy;
fuzmatch_str_T *fuzmatch = NULL;
regmatch_T regmatch;
int score = 0;
int to_free = FALSE;
*num_file = 0; // return values in case of FAIL
*file = NULL;
#ifdef FEAT_DIFF
if ((options & BUF_DIFF_FILTER) && !curwin->w_p_diff)
return FAIL;
#endif
fuzzy = cmdline_fuzzy_complete(pat);
// Make a copy of "pat" and change "^" to "\(^\|[\/]\)" (if doing regular
// expression matching)
if (!fuzzy)
{
if (*pat == '^' && pat[1] != NUL)
{
int len = (int)STRLEN(pat);
patc = alloc(len);
if (patc == NULL)
return FAIL;
STRNCPY(patc, pat + 1, len - 1);
patc[len - 1] = NUL;
to_free = TRUE;
}
else if (*pat == '^')
patc = (char_u *)"";
else
patc = pat;
regmatch.regprog = vim_regcomp(patc, RE_MAGIC);
}
// round == 1: Count the matches.
// round == 2: Build the array to keep the matches.
for (round = 1; round <= 2; ++round)
{
count = 0;
FOR_ALL_BUFFERS(buf)
{
if (!buf->b_p_bl) // skip unlisted buffers
continue;
#ifdef FEAT_DIFF
if (options & BUF_DIFF_FILTER)
// Skip buffers not suitable for
// :diffget or :diffput completion.
if (buf == curbuf || !diff_mode_buf(buf))
continue;
#endif
if (!fuzzy)
{
if (regmatch.regprog == NULL)
{
// invalid pattern, possibly after recompiling
if (to_free)
vim_free(patc);
return FAIL;
}
p = buflist_match(&regmatch, buf, p_wic);
}
else
{
p = NULL;
// first try matching with the short file name
if ((score = fuzzy_match_str(buf->b_sfname, pat)) != 0)
p = buf->b_sfname;
if (p == NULL)
{
// next try matching with the full path file name
if ((score = fuzzy_match_str(buf->b_ffname, pat)) != 0)
p = buf->b_ffname;
}
}
if (p == NULL)
continue;
if (round == 1)
{
++count;
continue;
}
if (options & WILD_HOME_REPLACE)
p = home_replace_save(buf, p);
else
p = vim_strsave(p);
if (!fuzzy)
{
#ifdef FEAT_VIMINFO
if (matches != NULL)
{
matches[count].buf = buf;
matches[count].match = p;
count++;
}
else
#endif
(*file)[count++] = p;
}
else
{
fuzmatch[count].idx = count;
fuzmatch[count].str = p;
fuzmatch[count].score = score;
count++;
}
}
if (count == 0) // no match found, break here
break;
if (round == 1)
{
if (!fuzzy)
{
*file = ALLOC_MULT(char_u *, count);
if (*file == NULL)
{
vim_regfree(regmatch.regprog);
if (to_free)
vim_free(patc);
return FAIL;
}
#ifdef FEAT_VIMINFO
if (options & WILD_BUFLASTUSED)
matches = ALLOC_MULT(bufmatch_T, count);
#endif
}
else
{
fuzmatch = ALLOC_MULT(fuzmatch_str_T, count);
if (fuzmatch == NULL)
{
*num_file = 0;
*file = NULL;
return FAIL;
}
}
}
}
if (!fuzzy)
{
vim_regfree(regmatch.regprog);
if (to_free)
vim_free(patc);
}
#ifdef FEAT_VIMINFO
if (!fuzzy)
{
if (matches != NULL)
{
int i;
if (count > 1)
qsort(matches, count, sizeof(bufmatch_T), buf_compare);
// if the current buffer is first in the list, place it at the end
if (matches[0].buf == curbuf)
{
for (i = 1; i < count; i++)
(*file)[i-1] = matches[i].match;
(*file)[count-1] = matches[0].match;
}
else
{
for (i = 0; i < count; i++)
(*file)[i] = matches[i].match;
}
vim_free(matches);
}
}
else
{
if (fuzzymatches_to_strmatches(fuzmatch, file, count, FALSE) == FAIL)
return FAIL;
}
#endif
*num_file = count;
return (count == 0 ? FAIL : OK);
}
/*
* Check for a match on the file name for buffer "buf" with regprog "prog".
* Note that rmp->regprog may become NULL when switching regexp engine.
*/
static char_u *
buflist_match(
regmatch_T *rmp,
buf_T *buf,
int ignore_case) // when TRUE ignore case, when FALSE use 'fic'
{
char_u *match;
// First try the short file name, then the long file name.
match = fname_match(rmp, buf->b_sfname, ignore_case);
if (match == NULL && rmp->regprog != NULL)
match = fname_match(rmp, buf->b_ffname, ignore_case);
return match;
}
/*
* Try matching the regexp in "rmp->regprog" with file name "name".
* Note that rmp->regprog may become NULL when switching regexp engine.
* Return "name" when there is a match, NULL when not.
*/
static char_u *
fname_match(
regmatch_T *rmp,
char_u *name,
int ignore_case) // when TRUE ignore case, when FALSE use 'fic'
{
char_u *match = NULL;
char_u *p;
// extra check for valid arguments
if (name == NULL || rmp->regprog == NULL)
return NULL;
// Ignore case when 'fileignorecase' or the argument is set.
rmp->rm_ic = p_fic || ignore_case;
if (vim_regexec(rmp, name, (colnr_T)0))
match = name;
else if (rmp->regprog != NULL)
{
// Replace $(HOME) with '~' and try matching again.
p = home_replace_save(NULL, name);
if (p != NULL && vim_regexec(rmp, p, (colnr_T)0))
match = name;
vim_free(p);
}
return match;
}
/*
* Find a file in the buffer list by buffer number.
*/
buf_T *
buflist_findnr(int nr)
{
char_u key[VIM_SIZEOF_INT * 2 + 1];
hashitem_T *hi;
if (nr == 0)
nr = curwin->w_alt_fnum;
sprintf((char *)key, "%x", nr);
hi = hash_find(&buf_hashtab, key);
if (!HASHITEM_EMPTY(hi))
return (buf_T *)(hi->hi_key
- ((unsigned)(curbuf->b_key - (char_u *)curbuf)));
return NULL;
}
/*
* Get name of file 'n' in the buffer list.
* When the file has no name an empty string is returned.
* home_replace() is used to shorten the file name (used for marks).
* Returns a pointer to allocated memory, of NULL when failed.
*/
char_u *
buflist_nr2name(
int n,
int fullname,
int helptail) // for help buffers return tail only
{
buf_T *buf;
buf = buflist_findnr(n);
if (buf == NULL)
return NULL;
return home_replace_save(helptail ? buf : NULL,
fullname ? buf->b_ffname : buf->b_fname);
}
/*
* Set the "lnum" and "col" for the buffer "buf" and the current window.
* When "copy_options" is TRUE save the local window option values.
* When "lnum" is 0 only do the options.
*/
void
buflist_setfpos(
buf_T *buf,
win_T *win, // may be NULL when using :badd
linenr_T lnum,
colnr_T col,
int copy_options)
{
wininfo_T *wip;
FOR_ALL_BUF_WININFO(buf, wip)
if (wip->wi_win == win)
break;
if (wip == NULL)
{
// allocate a new entry
wip = ALLOC_CLEAR_ONE(wininfo_T);
if (wip == NULL)
return;
wip->wi_win = win;
if (lnum == 0) // set lnum even when it's 0
lnum = 1;
}
else
{
// remove the entry from the list
if (wip->wi_prev)
wip->wi_prev->wi_next = wip->wi_next;
else
buf->b_wininfo = wip->wi_next;
if (wip->wi_next)
wip->wi_next->wi_prev = wip->wi_prev;
if (copy_options && wip->wi_optset)
{
clear_winopt(&wip->wi_opt);
#ifdef FEAT_FOLDING
deleteFoldRecurse(&wip->wi_folds);
#endif
}
}
if (lnum != 0)
{
wip->wi_fpos.lnum = lnum;
wip->wi_fpos.col = col;
}
if (win != NULL)
wip->wi_changelistidx = win->w_changelistidx;
if (copy_options && win != NULL)
{
// Save the window-specific option values.
copy_winopt(&win->w_onebuf_opt, &wip->wi_opt);
#ifdef FEAT_FOLDING
wip->wi_fold_manual = win->w_fold_manual;
cloneFoldGrowArray(&win->w_folds, &wip->wi_folds);
#endif
wip->wi_optset = TRUE;
}
// insert the entry in front of the list
wip->wi_next = buf->b_wininfo;
buf->b_wininfo = wip;
wip->wi_prev = NULL;
if (wip->wi_next)
wip->wi_next->wi_prev = wip;
}
#ifdef FEAT_DIFF
/*
* Return TRUE when "wip" has 'diff' set and the diff is only for another tab
* page. That's because a diff is local to a tab page.
*/
static int
wininfo_other_tab_diff(wininfo_T *wip)
{
win_T *wp;
if (!wip->wi_opt.wo_diff)
return FALSE;
FOR_ALL_WINDOWS(wp)
// return FALSE when it's a window in the current tab page, thus
// the buffer was in diff mode here
if (wip->wi_win == wp)
return FALSE;
return TRUE;
}
#endif
/*
* Find info for the current window in buffer "buf".
* If not found, return the info for the most recently used window.
* When "need_options" is TRUE skip entries where wi_optset is FALSE.
* When "skip_diff_buffer" is TRUE avoid windows with 'diff' set that is in
* another tab page.
* Returns NULL when there isn't any info.
*/
static wininfo_T *
find_wininfo(
buf_T *buf,
int need_options,
int skip_diff_buffer UNUSED)
{
wininfo_T *wip;
FOR_ALL_BUF_WININFO(buf, wip)
if (wip->wi_win == curwin
#ifdef FEAT_DIFF
&& (!skip_diff_buffer || !wininfo_other_tab_diff(wip))
#endif
&& (!need_options || wip->wi_optset))
break;
if (wip != NULL)
return wip;
// If no wininfo for curwin, use the first in the list (that doesn't have
// 'diff' set and is in another tab page).
// If "need_options" is TRUE skip entries that don't have options set,
// unless the window is editing "buf", so we can copy from the window
// itself.
#ifdef FEAT_DIFF
if (skip_diff_buffer)
{
FOR_ALL_BUF_WININFO(buf, wip)
if (!wininfo_other_tab_diff(wip)
&& (!need_options || wip->wi_optset
|| (wip->wi_win != NULL
&& wip->wi_win->w_buffer == buf)))
break;
}
else
#endif
wip = buf->b_wininfo;
return wip;
}
/*
* Reset the local window options to the values last used in this window.
* If the buffer wasn't used in this window before, use the values from
* the most recently used window. If the values were never set, use the
* global values for the window.
*/
void
get_winopts(buf_T *buf)
{
wininfo_T *wip;
clear_winopt(&curwin->w_onebuf_opt);
#ifdef FEAT_FOLDING
clearFolding(curwin);
#endif
wip = find_wininfo(buf, TRUE, TRUE);
if (wip != NULL && wip->wi_win != NULL
&& wip->wi_win != curwin && wip->wi_win->w_buffer == buf)
{
// The buffer is currently displayed in the window: use the actual
// option values instead of the saved (possibly outdated) values.
win_T *wp = wip->wi_win;
copy_winopt(&wp->w_onebuf_opt, &curwin->w_onebuf_opt);
#ifdef FEAT_FOLDING
curwin->w_fold_manual = wp->w_fold_manual;
curwin->w_foldinvalid = TRUE;
cloneFoldGrowArray(&wp->w_folds, &curwin->w_folds);
#endif
}
else if (wip != NULL && wip->wi_optset)
{
// the buffer was displayed in the current window earlier
copy_winopt(&wip->wi_opt, &curwin->w_onebuf_opt);
#ifdef FEAT_FOLDING
curwin->w_fold_manual = wip->wi_fold_manual;
curwin->w_foldinvalid = TRUE;
cloneFoldGrowArray(&wip->wi_folds, &curwin->w_folds);
#endif
}
else
copy_winopt(&curwin->w_allbuf_opt, &curwin->w_onebuf_opt);
if (wip != NULL)
curwin->w_changelistidx = wip->wi_changelistidx;
#ifdef FEAT_FOLDING
// Set 'foldlevel' to 'foldlevelstart' if it's not negative.
if (p_fdls >= 0)
curwin->w_p_fdl = p_fdls;
#endif
after_copy_winopt(curwin);
}
/*
* Find the position (lnum and col) for the buffer 'buf' for the current
* window.
* Returns a pointer to no_position if no position is found.
*/
pos_T *
buflist_findfpos(buf_T *buf)
{
wininfo_T *wip;
static pos_T no_position = {1, 0, 0};
wip = find_wininfo(buf, FALSE, FALSE);
if (wip != NULL)
return &(wip->wi_fpos);
else
return &no_position;
}
/*
* Find the lnum for the buffer 'buf' for the current window.
*/
linenr_T
buflist_findlnum(buf_T *buf)
{
return buflist_findfpos(buf)->lnum;
}
/*
* List all known file names (for :files and :buffers command).
*/
void
buflist_list(exarg_T *eap)
{
buf_T *buf = firstbuf;
int len;
int i;
int ro_char;
int changed_char;
#ifdef FEAT_TERMINAL
int job_running;
int job_none_open;
#endif
#ifdef FEAT_VIMINFO
garray_T buflist;
buf_T **buflist_data = NULL, **p;
if (vim_strchr(eap->arg, 't'))
{
ga_init2(&buflist, sizeof(buf_T *), 50);
FOR_ALL_BUFFERS(buf)
{
if (ga_grow(&buflist, 1) == OK)
((buf_T **)buflist.ga_data)[buflist.ga_len++] = buf;
}
qsort(buflist.ga_data, (size_t)buflist.ga_len,
sizeof(buf_T *), buf_compare);
buflist_data = (buf_T **)buflist.ga_data;
buf = *buflist_data;
}
p = buflist_data;
for (; buf != NULL && !got_int; buf = buflist_data != NULL
? (++p < buflist_data + buflist.ga_len ? *p : NULL)
: buf->b_next)
#else
for (buf = firstbuf; buf != NULL && !got_int; buf = buf->b_next)
#endif
{
#ifdef FEAT_TERMINAL
job_running = term_job_running(buf->b_term);
job_none_open = term_none_open(buf->b_term);
#endif
// skip unlisted buffers, unless ! was used
if ((!buf->b_p_bl && !eap->forceit && !vim_strchr(eap->arg, 'u'))
|| (vim_strchr(eap->arg, 'u') && buf->b_p_bl)
|| (vim_strchr(eap->arg, '+')
&& ((buf->b_flags & BF_READERR) || !bufIsChanged(buf)))
|| (vim_strchr(eap->arg, 'a')
&& (buf->b_ml.ml_mfp == NULL || buf->b_nwindows == 0))
|| (vim_strchr(eap->arg, 'h')
&& (buf->b_ml.ml_mfp == NULL || buf->b_nwindows != 0))
#ifdef FEAT_TERMINAL
|| (vim_strchr(eap->arg, 'R')
&& (!job_running || (job_running && job_none_open)))
|| (vim_strchr(eap->arg, '?')
&& (!job_running || (job_running && !job_none_open)))
|| (vim_strchr(eap->arg, 'F')
&& (job_running || buf->b_term == NULL))
#endif
|| (vim_strchr(eap->arg, '-') && buf->b_p_ma)
|| (vim_strchr(eap->arg, '=') && !buf->b_p_ro)
|| (vim_strchr(eap->arg, 'x') && !(buf->b_flags & BF_READERR))
|| (vim_strchr(eap->arg, '%') && buf != curbuf)
|| (vim_strchr(eap->arg, '#')
&& (buf == curbuf || curwin->w_alt_fnum != buf->b_fnum)))
continue;
if (buf_spname(buf) != NULL)
vim_strncpy(NameBuff, buf_spname(buf), MAXPATHL - 1);
else
home_replace(buf, buf->b_fname, NameBuff, MAXPATHL, TRUE);
if (message_filtered(NameBuff))
continue;
changed_char = (buf->b_flags & BF_READERR) ? 'x'
: (bufIsChanged(buf) ? '+' : ' ');
#ifdef FEAT_TERMINAL
if (job_running)
{
if (job_none_open)
ro_char = '?';
else
ro_char = 'R';
changed_char = ' '; // bufIsChanged() returns TRUE to avoid
// closing, but it's not actually changed.
}
else if (buf->b_term != NULL)
ro_char = 'F';
else
#endif
ro_char = !buf->b_p_ma ? '-' : (buf->b_p_ro ? '=' : ' ');
msg_putchar('\n');
len = vim_snprintf((char *)IObuff, IOSIZE - 20, "%3d%c%c%c%c%c \"%s\"",
buf->b_fnum,
buf->b_p_bl ? ' ' : 'u',
buf == curbuf ? '%' :
(curwin->w_alt_fnum == buf->b_fnum ? '#' : ' '),
buf->b_ml.ml_mfp == NULL ? ' ' :
(buf->b_nwindows == 0 ? 'h' : 'a'),
ro_char,
changed_char,
NameBuff);
if (len > IOSIZE - 20)
len = IOSIZE - 20;
// put "line 999" in column 40 or after the file name
i = 40 - vim_strsize(IObuff);
do
IObuff[len++] = ' ';
while (--i > 0 && len < IOSIZE - 18);
#ifdef FEAT_VIMINFO
if (vim_strchr(eap->arg, 't') && buf->b_last_used)
add_time(IObuff + len, (size_t)(IOSIZE - len), buf->b_last_used);
else
#endif
vim_snprintf((char *)IObuff + len, (size_t)(IOSIZE - len),
_("line %ld"), buf == curbuf ? curwin->w_cursor.lnum
: (long)buflist_findlnum(buf));
msg_outtrans(IObuff);
out_flush(); // output one line at a time
ui_breakcheck();
}
#ifdef FEAT_VIMINFO
if (buflist_data)
ga_clear(&buflist);
#endif
}
/*
* Get file name and line number for file 'fnum'.
* Used by DoOneCmd() for translating '%' and '#'.
* Used by insert_reg() and cmdline_paste() for '#' register.
* Return FAIL if not found, OK for success.
*/
int
buflist_name_nr(
int fnum,
char_u **fname,
linenr_T *lnum)
{
buf_T *buf;
buf = buflist_findnr(fnum);
if (buf == NULL || buf->b_fname == NULL)
return FAIL;
*fname = buf->b_fname;
*lnum = buflist_findlnum(buf);
return OK;
}
/*
* Set the file name for "buf"' to "ffname_arg", short file name to
* "sfname_arg".
* The file name with the full path is also remembered, for when :cd is used.
* Returns FAIL for failure (file name already in use by other buffer)
* OK otherwise.
*/
int
setfname(
buf_T *buf,
char_u *ffname_arg,
char_u *sfname_arg,
int message) // give message when buffer already exists
{
char_u *ffname = ffname_arg;
char_u *sfname = sfname_arg;
buf_T *obuf = NULL;
#ifdef UNIX
stat_T st;
#endif
if (ffname == NULL || *ffname == NUL)
{
// Removing the name.
if (buf->b_sfname != buf->b_ffname)
VIM_CLEAR(buf->b_sfname);
else
buf->b_sfname = NULL;
VIM_CLEAR(buf->b_ffname);
#ifdef UNIX
st.st_dev = (dev_T)-1;
#endif
}
else
{
fname_expand(buf, &ffname, &sfname); // will allocate ffname
if (ffname == NULL) // out of memory
return FAIL;
/*
* If the file name is already used in another buffer:
* - if the buffer is loaded, fail
* - if the buffer is not loaded, delete it from the list
*/
#ifdef UNIX
if (mch_stat((char *)ffname, &st) < 0)
st.st_dev = (dev_T)-1;
#endif
if (!(buf->b_flags & BF_DUMMY))
#ifdef UNIX
obuf = buflist_findname_stat(ffname, &st);
#else
obuf = buflist_findname(ffname);
#endif
if (obuf != NULL && obuf != buf)
{
win_T *win;
tabpage_T *tab;
int in_use = FALSE;
// during startup a window may use a buffer that is not loaded yet
FOR_ALL_TAB_WINDOWS(tab, win)
if (win->w_buffer == obuf)
in_use = TRUE;
// it's loaded or used in a window, fail
if (obuf->b_ml.ml_mfp != NULL || in_use)
{
if (message)
emsg(_(e_buffer_with_this_name_already_exists));
vim_free(ffname);
return FAIL;
}
// delete from the list
close_buffer(NULL, obuf, DOBUF_WIPE, FALSE, FALSE);
}
sfname = vim_strsave(sfname);
if (ffname == NULL || sfname == NULL)
{
vim_free(sfname);
vim_free(ffname);
return FAIL;
}
#ifdef USE_FNAME_CASE
fname_case(sfname, 0); // set correct case for short file name
#endif
if (buf->b_sfname != buf->b_ffname)
vim_free(buf->b_sfname);
vim_free(buf->b_ffname);
buf->b_ffname = ffname;
buf->b_sfname = sfname;
}
buf->b_fname = buf->b_sfname;
#ifdef UNIX
if (st.st_dev == (dev_T)-1)
buf->b_dev_valid = FALSE;
else
{
buf->b_dev_valid = TRUE;
buf->b_dev = st.st_dev;
buf->b_ino = st.st_ino;
}
#endif
buf->b_shortname = FALSE;
buf_name_changed(buf);
return OK;
}
/*
* Crude way of changing the name of a buffer. Use with care!
* The name should be relative to the current directory.
*/
void
buf_set_name(int fnum, char_u *name)
{
buf_T *buf;
buf = buflist_findnr(fnum);
if (buf == NULL)
return;
if (buf->b_sfname != buf->b_ffname)
vim_free(buf->b_sfname);
vim_free(buf->b_ffname);
buf->b_ffname = vim_strsave(name);
buf->b_sfname = NULL;
// Allocate ffname and expand into full path. Also resolves .lnk
// files on Win32.
fname_expand(buf, &buf->b_ffname, &buf->b_sfname);
buf->b_fname = buf->b_sfname;
}
/*
* Take care of what needs to be done when the name of buffer "buf" has
* changed.
*/
void
buf_name_changed(buf_T *buf)
{
/*
* If the file name changed, also change the name of the swapfile
*/
if (buf->b_ml.ml_mfp != NULL)
ml_setname(buf);
#ifdef FEAT_TERMINAL
if (buf->b_term != NULL)
term_clear_status_text(buf->b_term);
#endif
if (curwin->w_buffer == buf)
check_arg_idx(curwin); // check file name for arg list
maketitle(); // set window title
status_redraw_all(); // status lines need to be redrawn
fmarks_check_names(buf); // check named file marks
ml_timestamp(buf); // reset timestamp
}
/*
* set alternate file name for current window
*
* Used by do_one_cmd(), do_write() and do_ecmd().
* Return the buffer.
*/
buf_T *
setaltfname(
char_u *ffname,
char_u *sfname,
linenr_T lnum)
{
buf_T *buf;
// Create a buffer. 'buflisted' is not set if it's a new buffer
buf = buflist_new(ffname, sfname, lnum, 0);
if (buf != NULL && (cmdmod.cmod_flags & CMOD_KEEPALT) == 0)
curwin->w_alt_fnum = buf->b_fnum;
return buf;
}
/*
* Get alternate file name for current window.
* Return NULL if there isn't any, and give error message if requested.
*/
char_u *
getaltfname(
int errmsg) // give error message
{
char_u *fname;
linenr_T dummy;
if (buflist_name_nr(0, &fname, &dummy) == FAIL)
{
if (errmsg)
emsg(_(e_no_alternate_file));
return NULL;
}
return fname;
}
/*
* Add a file name to the buflist and return its number.
* Uses same flags as buflist_new(), except BLN_DUMMY.
*
* used by qf_init(), main() and doarglist()
*/
int
buflist_add(char_u *fname, int flags)
{
buf_T *buf;
buf = buflist_new(fname, NULL, (linenr_T)0, flags);
if (buf != NULL)
return buf->b_fnum;
return 0;
}
#if defined(BACKSLASH_IN_FILENAME) || defined(PROTO)
/*
* Adjust slashes in file names. Called after 'shellslash' was set.
*/
void
buflist_slash_adjust(void)
{
buf_T *bp;
FOR_ALL_BUFFERS(bp)
{
if (bp->b_ffname != NULL)
slash_adjust(bp->b_ffname);
if (bp->b_sfname != NULL)
slash_adjust(bp->b_sfname);
}
}
#endif
/*
* Set alternate cursor position for the current buffer and window "win".
* Also save the local window option values.
*/
void
buflist_altfpos(win_T *win)
{
buflist_setfpos(curbuf, win, win->w_cursor.lnum, win->w_cursor.col, TRUE);
}
/*
* Return TRUE if 'ffname' is not the same file as current file.
* Fname must have a full path (expanded by mch_FullName()).
*/
int
otherfile(char_u *ffname)
{
return otherfile_buf(curbuf, ffname
#ifdef UNIX
, NULL
#endif
);
}
static int
otherfile_buf(
buf_T *buf,
char_u *ffname
#ifdef UNIX
, stat_T *stp
#endif
)
{
// no name is different
if (ffname == NULL || *ffname == NUL || buf->b_ffname == NULL)
return TRUE;
if (fnamecmp(ffname, buf->b_ffname) == 0)
return FALSE;
#ifdef UNIX
{
stat_T st;
// If no stat_T given, get it now
if (stp == NULL)
{
if (!buf->b_dev_valid || mch_stat((char *)ffname, &st) < 0)
st.st_dev = (dev_T)-1;
stp = &st;
}
// Use dev/ino to check if the files are the same, even when the names
// are different (possible with links). Still need to compare the
// name above, for when the file doesn't exist yet.
// Problem: The dev/ino changes when a file is deleted (and created
// again) and remains the same when renamed/moved. We don't want to
// mch_stat() each buffer each time, that would be too slow. Get the
// dev/ino again when they appear to match, but not when they appear
// to be different: Could skip a buffer when it's actually the same
// file.
if (buf_same_ino(buf, stp))
{
buf_setino(buf);
if (buf_same_ino(buf, stp))
return FALSE;
}
}
#endif
return TRUE;
}
#if defined(UNIX) || defined(PROTO)
/*
* Set inode and device number for a buffer.
* Must always be called when b_fname is changed!.
*/
void
buf_setino(buf_T *buf)
{
stat_T st;
if (buf->b_fname != NULL && mch_stat((char *)buf->b_fname, &st) >= 0)
{
buf->b_dev_valid = TRUE;
buf->b_dev = st.st_dev;
buf->b_ino = st.st_ino;
}
else
buf->b_dev_valid = FALSE;
}
/*
* Return TRUE if dev/ino in buffer "buf" matches with "stp".
*/
static int
buf_same_ino(
buf_T *buf,
stat_T *stp)
{
return (buf->b_dev_valid
&& stp->st_dev == buf->b_dev
&& stp->st_ino == buf->b_ino);
}
#endif
/*
* Print info about the current buffer.
*/
void
fileinfo(
int fullname, // when non-zero print full path
int shorthelp,
int dont_truncate)
{
char_u *name;
int n;
char *p;
char *buffer;
size_t len;
buffer = alloc(IOSIZE);
if (buffer == NULL)
return;
if (fullname > 1) // 2 CTRL-G: include buffer number
{
vim_snprintf(buffer, IOSIZE, "buf %d: ", curbuf->b_fnum);
p = buffer + STRLEN(buffer);
}
else
p = buffer;
*p++ = '"';
if (buf_spname(curbuf) != NULL)
vim_strncpy((char_u *)p, buf_spname(curbuf), IOSIZE - (p - buffer) - 1);
else
{
if (!fullname && curbuf->b_fname != NULL)
name = curbuf->b_fname;
else
name = curbuf->b_ffname;
home_replace(shorthelp ? curbuf : NULL, name, (char_u *)p,
(int)(IOSIZE - (p - buffer)), TRUE);
}
vim_snprintf_add(buffer, IOSIZE, "\"%s%s%s%s%s%s",
curbufIsChanged() ? (shortmess(SHM_MOD)
? " [+]" : _(" [Modified]")) : " ",
(curbuf->b_flags & BF_NOTEDITED) && !bt_dontwrite(curbuf)
? _("[Not edited]") : "",
(curbuf->b_flags & BF_NEW) && !bt_dontwrite(curbuf)
? new_file_message() : "",
(curbuf->b_flags & BF_READERR) ? _("[Read errors]") : "",
curbuf->b_p_ro ? (shortmess(SHM_RO) ? _("[RO]")
: _("[readonly]")) : "",
(curbufIsChanged() || (curbuf->b_flags & BF_WRITE_MASK)
|| curbuf->b_p_ro) ?
" " : "");
// With 32 bit longs and more than 21,474,836 lines multiplying by 100
// causes an overflow, thus for large numbers divide instead.
if (curwin->w_cursor.lnum > 1000000L)
n = (int)(((long)curwin->w_cursor.lnum) /
((long)curbuf->b_ml.ml_line_count / 100L));
else
n = (int)(((long)curwin->w_cursor.lnum * 100L) /
(long)curbuf->b_ml.ml_line_count);
if (curbuf->b_ml.ml_flags & ML_EMPTY)
vim_snprintf_add(buffer, IOSIZE, "%s", _(no_lines_msg));
else if (p_ru)
// Current line and column are already on the screen -- webb
vim_snprintf_add(buffer, IOSIZE,
NGETTEXT("%ld line --%d%%--", "%ld lines --%d%%--",
curbuf->b_ml.ml_line_count),
(long)curbuf->b_ml.ml_line_count, n);
else
{
vim_snprintf_add(buffer, IOSIZE,
_("line %ld of %ld --%d%%-- col "),
(long)curwin->w_cursor.lnum,
(long)curbuf->b_ml.ml_line_count,
n);
validate_virtcol();
len = STRLEN(buffer);
col_print((char_u *)buffer + len, IOSIZE - len,
(int)curwin->w_cursor.col + 1, (int)curwin->w_virtcol + 1);
}
(void)append_arg_number(curwin, (char_u *)buffer, IOSIZE,
!shortmess(SHM_FILE));
if (dont_truncate)
{
// Temporarily set msg_scroll to avoid the message being truncated.
// First call msg_start() to get the message in the right place.
msg_start();
n = msg_scroll;
msg_scroll = TRUE;
msg(buffer);
msg_scroll = n;
}
else
{
p = msg_trunc_attr(buffer, FALSE, 0);
if (restart_edit != 0 || (msg_scrolled && !need_wait_return))
// Need to repeat the message after redrawing when:
// - When restart_edit is set (otherwise there will be a delay
// before redrawing).
// - When the screen was scrolled but there is no wait-return
// prompt.
set_keep_msg((char_u *)p, 0);
}
vim_free(buffer);
}
void
col_print(
char_u *buf,
size_t buflen,
int col,
int vcol)
{
if (col == vcol)
vim_snprintf((char *)buf, buflen, "%d", col);
else
vim_snprintf((char *)buf, buflen, "%d-%d", col, vcol);
}
static char_u *lasttitle = NULL;
static char_u *lasticon = NULL;
/*
* Put the file name in the title bar and icon of the window.
*/
void
maketitle(void)
{
char_u *p;
char_u *title_str = NULL;
char_u *icon_str = NULL;
int maxlen = 0;
int len;
int mustset;
char_u buf[IOSIZE];
int off;
if (!redrawing())
{
// Postpone updating the title when 'lazyredraw' is set.
need_maketitle = TRUE;
return;
}
need_maketitle = FALSE;
if (!p_title && !p_icon && lasttitle == NULL && lasticon == NULL)
return; // nothing to do
if (p_title)
{
if (p_titlelen > 0)
{
maxlen = p_titlelen * Columns / 100;
if (maxlen < 10)
maxlen = 10;
}
title_str = buf;
if (*p_titlestring != NUL)
{
#ifdef FEAT_STL_OPT
if (stl_syntax & STL_IN_TITLE)
build_stl_str_hl(curwin, title_str, sizeof(buf), p_titlestring,
(char_u *)"titlestring", 0,
0, maxlen, NULL, NULL);
else
#endif
title_str = p_titlestring;
}
else
{
// format: "fname + (path) (1 of 2) - VIM"
#define SPACE_FOR_FNAME (IOSIZE - 100)
#define SPACE_FOR_DIR (IOSIZE - 20)
#define SPACE_FOR_ARGNR (IOSIZE - 10) // at least room for " - VIM"
if (curbuf->b_fname == NULL)
vim_strncpy(buf, (char_u *)_("[No Name]"), SPACE_FOR_FNAME);
#ifdef FEAT_TERMINAL
else if (curbuf->b_term != NULL)
{
vim_strncpy(buf, term_get_status_text(curbuf->b_term),
SPACE_FOR_FNAME);
}
#endif
else
{
p = transstr(gettail(curbuf->b_fname));
vim_strncpy(buf, p, SPACE_FOR_FNAME);
vim_free(p);
}
#ifdef FEAT_TERMINAL
if (curbuf->b_term == NULL)
#endif
switch (bufIsChanged(curbuf)
+ (curbuf->b_p_ro * 2)
+ (!curbuf->b_p_ma * 4))
{
case 1: STRCAT(buf, " +"); break;
case 2: STRCAT(buf, " ="); break;
case 3: STRCAT(buf, " =+"); break;
case 4:
case 6: STRCAT(buf, " -"); break;
case 5:
case 7: STRCAT(buf, " -+"); break;
}
if (curbuf->b_fname != NULL
#ifdef FEAT_TERMINAL
&& curbuf->b_term == NULL
#endif
)
{
// Get path of file, replace home dir with ~
off = (int)STRLEN(buf);
buf[off++] = ' ';
buf[off++] = '(';
home_replace(curbuf, curbuf->b_ffname,
buf + off, SPACE_FOR_DIR - off, TRUE);
#ifdef BACKSLASH_IN_FILENAME
// avoid "c:/name" to be reduced to "c"
if (SAFE_isalpha(buf[off]) && buf[off + 1] == ':')
off += 2;
#endif
// remove the file name
p = gettail_sep(buf + off);
if (p == buf + off)
{
// must be a help buffer
vim_strncpy(buf + off, (char_u *)_("help"),
(size_t)(SPACE_FOR_DIR - off - 1));
}
else
*p = NUL;
// Translate unprintable chars and concatenate. Keep some
// room for the server name. When there is no room (very long
// file name) use (...).
if (off < SPACE_FOR_DIR)
{
p = transstr(buf + off);
vim_strncpy(buf + off, p, (size_t)(SPACE_FOR_DIR - off));
vim_free(p);
}
else
{
vim_strncpy(buf + off, (char_u *)"...",
(size_t)(SPACE_FOR_ARGNR - off));
}
STRCAT(buf, ")");
}
append_arg_number(curwin, buf, SPACE_FOR_ARGNR, FALSE);
#if defined(FEAT_CLIENTSERVER)
if (serverName != NULL)
{
STRCAT(buf, " - ");
vim_strcat(buf, serverName, IOSIZE);
}
else
#endif
STRCAT(buf, " - VIM");
if (maxlen > 0)
{
// make it shorter by removing a bit in the middle
if (vim_strsize(buf) > maxlen)
trunc_string(buf, buf, maxlen, IOSIZE);
}
}
}
mustset = value_changed(title_str, &lasttitle);
if (p_icon)
{
icon_str = buf;
if (*p_iconstring != NUL)
{
#ifdef FEAT_STL_OPT
if (stl_syntax & STL_IN_ICON)
build_stl_str_hl(curwin, icon_str, sizeof(buf), p_iconstring,
(char_u *)"iconstring", 0, 0, 0, NULL, NULL);
else
#endif
icon_str = p_iconstring;
}
else
{
if (buf_spname(curbuf) != NULL)
p = buf_spname(curbuf);
else // use file name only in icon
p = gettail(curbuf->b_ffname);
*icon_str = NUL;
// Truncate name at 100 bytes.
len = (int)STRLEN(p);
if (len > 100)
{
len -= 100;
if (has_mbyte)
len += (*mb_tail_off)(p, p + len) + 1;
p += len;
}
STRCPY(icon_str, p);
trans_characters(icon_str, IOSIZE);
}
}
mustset |= value_changed(icon_str, &lasticon);
if (mustset)
resettitle();
}
/*
* Used for title and icon: Check if "str" differs from "*last". Set "*last"
* from "str" if it does.
* Return TRUE if resettitle() is to be called.
*/
static int
value_changed(char_u *str, char_u **last)
{
if ((str == NULL) != (*last == NULL)
|| (str != NULL && *last != NULL && STRCMP(str, *last) != 0))
{
vim_free(*last);
if (str == NULL)
{
*last = NULL;
mch_restore_title(
last == &lasttitle ? SAVE_RESTORE_TITLE : SAVE_RESTORE_ICON);
}
else
{
*last = vim_strsave(str);
return TRUE;
}
}
return FALSE;
}
/*
* Put current window title back (used after calling a shell)
*/
void
resettitle(void)
{
mch_settitle(lasttitle, lasticon);
}
# if defined(EXITFREE) || defined(PROTO)
void
free_titles(void)
{
vim_free(lasttitle);
vim_free(lasticon);
}
# endif
#if defined(FEAT_STL_OPT) || defined(FEAT_GUI_TABLINE) || defined(PROTO)
/*
* Used for building in the status line.
*/
typedef struct
{
char_u *stl_start;
int stl_minwid;
int stl_maxwid;
enum {
Normal,
Empty,
Group,
Separate,
Highlight,
TabPage,
Trunc
} stl_type;
} stl_item_T;
static size_t stl_items_len = 20; // Initial value, grows as needed.
static stl_item_T *stl_items = NULL;
static int *stl_groupitem = NULL;
static stl_hlrec_T *stl_hltab = NULL;
static stl_hlrec_T *stl_tabtab = NULL;
static int *stl_separator_locations = NULL;
/*
* Build a string from the status line items in "fmt".
* Return length of string in screen cells.
*
* Normally works for window "wp", except when working for 'tabline' then it
* is "curwin".
*
* Items are drawn interspersed with the text that surrounds it
* Specials: %-<wid>(xxx%) => group, %= => separation marker, %< => truncation
* Item: %-<minwid>.<maxwid><itemch> All but <itemch> are optional
*
* If maxwidth is not zero, the string will be filled at any middle marker
* or truncated if too long, fillchar is used for all whitespace.
*/
int
build_stl_str_hl(
win_T *wp,
char_u *out, // buffer to write into != NameBuff
size_t outlen, // length of out[]
char_u *fmt,
char_u *opt_name, // option name corresponding to "fmt"
int opt_scope, // scope for "opt_name"
int fillchar,
int maxwidth,
stl_hlrec_T **hltab, // return: HL attributes (can be NULL)
stl_hlrec_T **tabtab) // return: tab page nrs (can be NULL)
{
linenr_T lnum;
colnr_T len;
char_u *p;
char_u *s;
char_u *t;
int byteval;
#ifdef FEAT_EVAL
int use_sandbox;
win_T *save_curwin;
buf_T *save_curbuf;
int save_VIsual_active;
#endif
int empty_line;
colnr_T virtcol;
long l;
long n;
int prevchar_isflag;
int prevchar_isitem;
int itemisflag;
int fillable;
char_u *str;
long num;
int width;
int itemcnt;
int curitem;
int group_end_userhl;
int group_start_userhl;
int groupdepth;
#ifdef FEAT_EVAL
int evaldepth;
#endif
int minwid;
int maxwid;
int zeropad;
char_u base;
char_u opt;
#define TMPLEN 70
char_u buf_tmp[TMPLEN];
char_u win_tmp[TMPLEN];
char_u *usefmt = fmt;
stl_hlrec_T *sp;
int save_redraw_not_allowed = redraw_not_allowed;
int save_KeyTyped = KeyTyped;
// TODO: find out why using called_emsg_before makes tests fail, does it
// matter?
// int called_emsg_before = called_emsg;
int did_emsg_before = did_emsg;
// When inside update_screen() we do not want redrawing a statusline,
// ruler, title, etc. to trigger another redraw, it may cause an endless
// loop.
if (updating_screen)
redraw_not_allowed = TRUE;
if (stl_items == NULL)
{
stl_items = ALLOC_MULT(stl_item_T, stl_items_len);
stl_groupitem = ALLOC_MULT(int, stl_items_len);
// Allocate one more, because the last element is used to indicate the
// end of the list.
stl_hltab = ALLOC_MULT(stl_hlrec_T, stl_items_len + 1);
stl_tabtab = ALLOC_MULT(stl_hlrec_T, stl_items_len + 1);
stl_separator_locations = ALLOC_MULT(int, stl_items_len);
}
#ifdef FEAT_EVAL
// if "fmt" was set insecurely it needs to be evaluated in the sandbox
use_sandbox = was_set_insecurely(opt_name, opt_scope);
// When the format starts with "%!" then evaluate it as an expression and
// use the result as the actual format string.
if (fmt[0] == '%' && fmt[1] == '!')
{
typval_T tv;
tv.v_type = VAR_NUMBER;
tv.vval.v_number = wp->w_id;
set_var((char_u *)"g:statusline_winid", &tv, FALSE);
usefmt = eval_to_string_safe(fmt + 2, use_sandbox, FALSE, FALSE);
if (usefmt == NULL)
usefmt = fmt;
do_unlet((char_u *)"g:statusline_winid", TRUE);
}
#endif
if (fillchar == 0)
fillchar = ' ';
// The cursor in windows other than the current one isn't always
// up-to-date, esp. because of autocommands and timers.
lnum = wp->w_cursor.lnum;
if (lnum > wp->w_buffer->b_ml.ml_line_count)
{
lnum = wp->w_buffer->b_ml.ml_line_count;
wp->w_cursor.lnum = lnum;
}
// Get line & check if empty (cursorpos will show "0-1"). Note that
// p will become invalid when getting another buffer line.
p = ml_get_buf(wp->w_buffer, lnum, FALSE);
empty_line = (*p == NUL);
// Get the byte value now, in case we need it below. This is more efficient
// than making a copy of the line.
len = ml_get_buf_len(wp->w_buffer, lnum);
if (wp->w_cursor.col > len)
{
// Line may have changed since checking the cursor column, or the lnum
// was adjusted above.
wp->w_cursor.col = len;
wp->w_cursor.coladd = 0;
byteval = 0;
}
else
byteval = (*mb_ptr2char)(p + wp->w_cursor.col);
groupdepth = 0;
#ifdef FEAT_EVAL
evaldepth = 0;
#endif
p = out;
curitem = 0;
prevchar_isflag = TRUE;
prevchar_isitem = FALSE;
for (s = usefmt; *s != NUL; )
{
if (curitem == (int)stl_items_len)
{
size_t new_len = stl_items_len * 3 / 2;
stl_item_T *new_items =
vim_realloc(stl_items, sizeof(stl_item_T) * new_len);
if (new_items == NULL)
break;
stl_items = new_items;
int *new_groupitem =
vim_realloc(stl_groupitem, sizeof(int) * new_len);
if (new_groupitem == NULL)
break;
stl_groupitem = new_groupitem;
stl_hlrec_T *new_hlrec = vim_realloc(stl_hltab,
sizeof(stl_hlrec_T) * (new_len + 1));
if (new_hlrec == NULL)
break;
stl_hltab = new_hlrec;
new_hlrec = vim_realloc(stl_tabtab,
sizeof(stl_hlrec_T) * (new_len + 1));
if (new_hlrec == NULL)
break;
stl_tabtab = new_hlrec;
int *new_separator_locs = vim_realloc(stl_separator_locations,
sizeof(int) * new_len);
if (new_separator_locs == NULL)
break;
stl_separator_locations = new_separator_locs;;
stl_items_len = new_len;
}
if (*s != '%')
prevchar_isflag = prevchar_isitem = FALSE;
/*
* Handle up to the next '%' or the end.
*/
while (*s != NUL && *s != '%' && p + 1 < out + outlen)
*p++ = *s++;
if (*s == NUL || p + 1 >= out + outlen)
break;
/*
* Handle one '%' item.
*/
s++;
if (*s == NUL) // ignore trailing %
break;
if (*s == '%')
{
if (p + 1 >= out + outlen)
break;
*p++ = *s++;
prevchar_isflag = prevchar_isitem = FALSE;
continue;
}
// STL_SEPARATE: Separation between items, filled with white space.
if (*s == STL_SEPARATE)
{
s++;
if (groupdepth > 0)
continue;
stl_items[curitem].stl_type = Separate;
stl_items[curitem++].stl_start = p;
continue;
}
if (*s == STL_TRUNCMARK)
{
s++;
stl_items[curitem].stl_type = Trunc;
stl_items[curitem++].stl_start = p;
continue;
}
if (*s == ')')
{
s++;
if (groupdepth < 1)
continue;
groupdepth--;
t = stl_items[stl_groupitem[groupdepth]].stl_start;
*p = NUL;
l = vim_strsize(t);
if (curitem > stl_groupitem[groupdepth] + 1
&& stl_items[stl_groupitem[groupdepth]].stl_minwid == 0)
{
// remove group if all items are empty and highlight group
// doesn't change
group_start_userhl = group_end_userhl = 0;
for (n = stl_groupitem[groupdepth] - 1; n >= 0; n--)
{
if (stl_items[n].stl_type == Highlight)
{
group_start_userhl = group_end_userhl =
stl_items[n].stl_minwid;
break;
}
}
for (n = stl_groupitem[groupdepth] + 1; n < curitem; n++)
{
if (stl_items[n].stl_type == Normal)
break;
if (stl_items[n].stl_type == Highlight)
group_end_userhl = stl_items[n].stl_minwid;
}
if (n == curitem && group_start_userhl == group_end_userhl)
{
// empty group
p = t;
l = 0;
for (n = stl_groupitem[groupdepth] + 1; n < curitem; n++)
{
// do not use the highlighting from the removed group
if (stl_items[n].stl_type == Highlight)
stl_items[n].stl_type = Empty;
// adjust the start position of TabPage to the next
// item position
if (stl_items[n].stl_type == TabPage)
stl_items[n].stl_start = p;
}
}
}
if (l > stl_items[stl_groupitem[groupdepth]].stl_maxwid)
{
// truncate, remove n bytes of text at the start
if (has_mbyte)
{
// Find the first character that should be included.
n = 0;
while (l >= stl_items[stl_groupitem[groupdepth]].stl_maxwid)
{
l -= ptr2cells(t + n);
n += (*mb_ptr2len)(t + n);
}
}
else
n = (long)(p - t) - stl_items[stl_groupitem[groupdepth]]
.stl_maxwid + 1;
*t = '<';
mch_memmove(t + 1, t + n, (size_t)(p - (t + n)));
p = p - n + 1;
// Fill up space left over by half a double-wide char.
while (++l < stl_items[stl_groupitem[groupdepth]].stl_minwid)
MB_CHAR2BYTES(fillchar, p);
// correct the start of the items for the truncation
for (l = stl_groupitem[groupdepth] + 1; l < curitem; l++)
{
// Minus one for the leading '<' added above.
stl_items[l].stl_start -= n - 1;
if (stl_items[l].stl_start < t)
stl_items[l].stl_start = t;
}
}
else if (abs(stl_items[stl_groupitem[groupdepth]].stl_minwid) > l)
{
// fill
n = stl_items[stl_groupitem[groupdepth]].stl_minwid;
if (n < 0)
{
// fill by appending characters
n = 0 - n;
while (l++ < n && p + 1 < out + outlen)
MB_CHAR2BYTES(fillchar, p);
}
else
{
// fill by inserting characters
l = (n - l) * MB_CHAR2LEN(fillchar);
mch_memmove(t + l, t, (size_t)(p - t));
if (p + l >= out + outlen)
l = (long)((out + outlen) - p - 1);
p += l;
for (n = stl_groupitem[groupdepth] + 1; n < curitem; n++)
stl_items[n].stl_start += l;
for ( ; l > 0; l--)
MB_CHAR2BYTES(fillchar, t);
}
}
continue;
}
minwid = 0;
maxwid = 9999;
zeropad = FALSE;
l = 1;
if (*s == '0')
{
s++;
zeropad = TRUE;
}
if (*s == '-')
{
s++;
l = -1;
}
if (VIM_ISDIGIT(*s))
{
minwid = (int)getdigits(&s);
if (minwid < 0) // overflow
minwid = 0;
}
if (*s == STL_USER_HL)
{
stl_items[curitem].stl_type = Highlight;
stl_items[curitem].stl_start = p;
stl_items[curitem].stl_minwid = minwid > 9 ? 1 : minwid;
s++;
curitem++;
continue;
}
if (*s == STL_TABPAGENR || *s == STL_TABCLOSENR)
{
if (*s == STL_TABCLOSENR)
{
if (minwid == 0)
{
// %X ends the close label, go back to the previously
// define tab label nr.
for (n = curitem - 1; n >= 0; --n)
if (stl_items[n].stl_type == TabPage
&& stl_items[n].stl_minwid >= 0)
{
minwid = stl_items[n].stl_minwid;
break;
}
}
else
// close nrs are stored as negative values
minwid = - minwid;
}
stl_items[curitem].stl_type = TabPage;
stl_items[curitem].stl_start = p;
stl_items[curitem].stl_minwid = minwid;
s++;
curitem++;
continue;
}
if (*s == '.')
{
s++;
if (VIM_ISDIGIT(*s))
{
maxwid = (int)getdigits(&s);
if (maxwid <= 0) // overflow
maxwid = 50;
}
}
minwid = (minwid > 50 ? 50 : minwid) * l;
if (*s == '(')
{
stl_groupitem[groupdepth++] = curitem;
stl_items[curitem].stl_type = Group;
stl_items[curitem].stl_start = p;
stl_items[curitem].stl_minwid = minwid;
stl_items[curitem].stl_maxwid = maxwid;
s++;
curitem++;
continue;
}
#ifdef FEAT_EVAL
// Denotes end of expanded %{} block
if (*s == '}' && evaldepth > 0)
{
s++;
evaldepth--;
continue;
}
#endif
if (vim_strchr(STL_ALL, *s) == NULL)
{
if (*s == NUL) // can happen with "%0"
break;
s++;
continue;
}
opt = *s++;
// OK - now for the real work
base = 'D';
itemisflag = FALSE;
fillable = TRUE;
num = -1;
str = NULL;
switch (opt)
{
case STL_FILEPATH:
case STL_FULLPATH:
case STL_FILENAME:
fillable = FALSE; // don't change ' ' to fillchar
if (buf_spname(wp->w_buffer) != NULL)
vim_strncpy(NameBuff, buf_spname(wp->w_buffer), MAXPATHL - 1);
else
{
t = (opt == STL_FULLPATH) ? wp->w_buffer->b_ffname
: wp->w_buffer->b_fname;
home_replace(wp->w_buffer, t, NameBuff, MAXPATHL, TRUE);
}
trans_characters(NameBuff, MAXPATHL);
if (opt != STL_FILENAME)
str = NameBuff;
else
str = gettail(NameBuff);
break;
case STL_VIM_EXPR: // '{'
{
#ifdef FEAT_EVAL
char_u *block_start = s - 1;
#endif
int reevaluate = (*s == '%');
if (reevaluate)
s++;
itemisflag = TRUE;
t = p;
while ((*s != '}' || (reevaluate && s[-1] != '%'))
&& *s != NUL && p + 1 < out + outlen)
*p++ = *s++;
if (*s != '}') // missing '}' or out of space
break;
s++;
if (reevaluate)
p[-1] = 0; // remove the % at the end of %{% expr %}
else
*p = 0;
p = t;
#ifdef FEAT_EVAL
vim_snprintf((char *)buf_tmp, sizeof(buf_tmp),
"%d", curbuf->b_fnum);
set_internal_string_var((char_u *)"g:actual_curbuf", buf_tmp);
vim_snprintf((char *)win_tmp, sizeof(win_tmp), "%d", curwin->w_id);
set_internal_string_var((char_u *)"g:actual_curwin", win_tmp);
save_curbuf = curbuf;
save_curwin = curwin;
save_VIsual_active = VIsual_active;
curwin = wp;
curbuf = wp->w_buffer;
// Visual mode is only valid in the current window.
if (curwin != save_curwin)
VIsual_active = FALSE;
str = eval_to_string_safe(p, use_sandbox, FALSE, FALSE);
curwin = save_curwin;
curbuf = save_curbuf;
VIsual_active = save_VIsual_active;
do_unlet((char_u *)"g:actual_curbuf", TRUE);
do_unlet((char_u *)"g:actual_curwin", TRUE);
if (str != NULL && *str != 0)
{
if (*skipdigits(str) == NUL)
{
num = atoi((char *)str);
VIM_CLEAR(str);
itemisflag = FALSE;
}
}
// If the output of the expression needs to be evaluated
// replace the %{} block with the result of evaluation
if (reevaluate && str != NULL && *str != 0
&& strchr((const char *)str, '%') != NULL
&& evaldepth < MAX_STL_EVAL_DEPTH)
{
size_t parsed_usefmt = (size_t)(block_start - usefmt);
size_t str_length = strlen((const char *)str);
size_t fmt_length = strlen((const char *)s);
size_t new_fmt_len = parsed_usefmt
+ str_length + fmt_length + 3;
char_u *new_fmt = (char_u *)alloc(new_fmt_len * sizeof(char_u));
char_u *new_fmt_p = new_fmt;
new_fmt_p = (char_u *)memcpy(new_fmt_p, usefmt, parsed_usefmt)
+ parsed_usefmt;
new_fmt_p = (char_u *)memcpy(new_fmt_p , str, str_length)
+ str_length;
new_fmt_p = (char_u *)memcpy(new_fmt_p, "%}", 2) + 2;
new_fmt_p = (char_u *)memcpy(new_fmt_p , s, fmt_length)
+ fmt_length;
*new_fmt_p = 0;
new_fmt_p = NULL;
if (usefmt != fmt)
vim_free(usefmt);
VIM_CLEAR(str);
usefmt = new_fmt;
s = usefmt + parsed_usefmt;
evaldepth++;
continue;
}
#endif
break;
}
case STL_LINE:
num = (wp->w_buffer->b_ml.ml_flags & ML_EMPTY)
? 0L : (long)(wp->w_cursor.lnum);
break;
case STL_NUMLINES:
num = wp->w_buffer->b_ml.ml_line_count;
break;
case STL_COLUMN:
num = (State & MODE_INSERT) == 0 && empty_line
? 0 : (int)wp->w_cursor.col + 1;
break;
case STL_VIRTCOL:
case STL_VIRTCOL_ALT:
virtcol = wp->w_virtcol + 1;
// Don't display %V if it's the same as %c.
if (opt == STL_VIRTCOL_ALT
&& (virtcol == (colnr_T)((State & MODE_INSERT) == 0
&& empty_line ? 0 : (int)wp->w_cursor.col + 1)))
break;
num = (long)virtcol;
break;
case STL_PERCENTAGE:
num = (int)(((long)wp->w_cursor.lnum * 100L) /
(long)wp->w_buffer->b_ml.ml_line_count);
break;
case STL_ALTPERCENT:
str = buf_tmp;
get_rel_pos(wp, str, TMPLEN);
break;
case STL_SHOWCMD:
if (p_sc && STRCMP(opt_name, p_sloc) == 0)
str = showcmd_buf;
break;
case STL_ARGLISTSTAT:
fillable = FALSE;
buf_tmp[0] = 0;
if (append_arg_number(wp, buf_tmp, (int)sizeof(buf_tmp), FALSE))
str = buf_tmp;
break;
case STL_KEYMAP:
fillable = FALSE;
if (get_keymap_str(wp, (char_u *)"<%s>", buf_tmp, TMPLEN))
str = buf_tmp;
break;
case STL_PAGENUM:
#if defined(FEAT_PRINTER) || defined(FEAT_GUI_TABLINE)
num = printer_page_num;
#else
num = 0;
#endif
break;
case STL_BUFNO:
num = wp->w_buffer->b_fnum;
break;
case STL_OFFSET_X:
base = 'X';
// FALLTHROUGH
case STL_OFFSET:
#ifdef FEAT_BYTEOFF
l = ml_find_line_or_offset(wp->w_buffer, wp->w_cursor.lnum, NULL);
num = (wp->w_buffer->b_ml.ml_flags & ML_EMPTY) || l < 0
? 0L : l + 1 + ((State & MODE_INSERT) == 0 && empty_line
? 0 : (int)wp->w_cursor.col);
#endif
break;
case STL_BYTEVAL_X:
base = 'X';
// FALLTHROUGH
case STL_BYTEVAL:
num = byteval;
if (num == NL)
num = 0;
else if (num == CAR && get_fileformat(wp->w_buffer) == EOL_MAC)
num = NL;
break;
case STL_ROFLAG:
case STL_ROFLAG_ALT:
itemisflag = TRUE;
if (wp->w_buffer->b_p_ro)
str = (char_u *)((opt == STL_ROFLAG_ALT) ? ",RO" : _("[RO]"));
break;
case STL_HELPFLAG:
case STL_HELPFLAG_ALT:
itemisflag = TRUE;
if (wp->w_buffer->b_help)
str = (char_u *)((opt == STL_HELPFLAG_ALT) ? ",HLP"
: _("[Help]"));
break;
case STL_FILETYPE:
if (*wp->w_buffer->b_p_ft != NUL
&& STRLEN(wp->w_buffer->b_p_ft) < TMPLEN - 3)
{
vim_snprintf((char *)buf_tmp, sizeof(buf_tmp), "[%s]",
wp->w_buffer->b_p_ft);
str = buf_tmp;
}
break;
case STL_FILETYPE_ALT:
itemisflag = TRUE;
if (*wp->w_buffer->b_p_ft != NUL
&& STRLEN(wp->w_buffer->b_p_ft) < TMPLEN - 2)
{
vim_snprintf((char *)buf_tmp, sizeof(buf_tmp), ",%s",
wp->w_buffer->b_p_ft);
for (t = buf_tmp; *t != 0; t++)
*t = TOUPPER_LOC(*t);
str = buf_tmp;
}
break;
#if defined(FEAT_QUICKFIX)
case STL_PREVIEWFLAG:
case STL_PREVIEWFLAG_ALT:
itemisflag = TRUE;
if (wp->w_p_pvw)
str = (char_u *)((opt == STL_PREVIEWFLAG_ALT) ? ",PRV"
: _("[Preview]"));
break;
case STL_QUICKFIX:
if (bt_quickfix(wp->w_buffer))
str = (char_u *)(wp->w_llist_ref
? _(msg_loclist)
: _(msg_qflist));
break;
#endif
case STL_MODIFIED:
case STL_MODIFIED_ALT:
itemisflag = TRUE;
switch ((opt == STL_MODIFIED_ALT)
+ bufIsChanged(wp->w_buffer) * 2
+ (!wp->w_buffer->b_p_ma) * 4)
{
case 2: str = (char_u *)"[+]"; break;
case 3: str = (char_u *)",+"; break;
case 4: str = (char_u *)"[-]"; break;
case 5: str = (char_u *)",-"; break;
case 6: str = (char_u *)"[+-]"; break;
case 7: str = (char_u *)",+-"; break;
}
break;
case STL_HIGHLIGHT:
t = s;
while (*s != '#' && *s != NUL)
++s;
if (*s == '#')
{
stl_items[curitem].stl_type = Highlight;
stl_items[curitem].stl_start = p;
stl_items[curitem].stl_minwid = -syn_namen2id(t, (int)(s - t));
curitem++;
}
if (*s != NUL)
++s;
continue;
}
stl_items[curitem].stl_start = p;
stl_items[curitem].stl_type = Normal;
if (str != NULL && *str)
{
t = str;
if (itemisflag)
{
if ((t[0] && t[1])
&& ((!prevchar_isitem && *t == ',')
|| (prevchar_isflag && *t == ' ')))
t++;
prevchar_isflag = TRUE;
}
l = vim_strsize(t);
if (l > 0)
prevchar_isitem = TRUE;
if (l > maxwid)
{
while (l >= maxwid)
if (has_mbyte)
{
l -= ptr2cells(t);
t += (*mb_ptr2len)(t);
}
else
l -= byte2cells(*t++);
if (p + 1 >= out + outlen)
break;
*p++ = '<';
}
if (minwid > 0)
{
for (; l < minwid && p + 1 < out + outlen; l++)
{
// Don't put a "-" in front of a digit.
if (l + 1 == minwid && fillchar == '-' && VIM_ISDIGIT(*t))
*p++ = ' ';
else
MB_CHAR2BYTES(fillchar, p);
}
minwid = 0;
}
else
minwid *= -1;
for (; *t && p + 1 < out + outlen; t++)
{
// Change a space by fillchar, unless fillchar is '-' and a
// digit follows.
if (fillable && *t == ' '
&& (!VIM_ISDIGIT(*(t + 1)) || fillchar != '-'))
MB_CHAR2BYTES(fillchar, p);
else
*p++ = *t;
}
for (; l < minwid && p + 1 < out + outlen; l++)
MB_CHAR2BYTES(fillchar, p);
}
else if (num >= 0)
{
int nbase = (base == 'D' ? 10 : (base == 'O' ? 8 : 16));
char_u nstr[20];
if (p + 20 >= out + outlen)
break; // not sufficient space
prevchar_isitem = TRUE;
t = nstr;
if (opt == STL_VIRTCOL_ALT)
{
*t++ = '-';
minwid--;
}
*t++ = '%';
if (zeropad)
*t++ = '0';
*t++ = '*';
*t++ = nbase == 16 ? base : (char_u)(nbase == 8 ? 'o' : 'd');
*t = 0;
for (n = num, l = 1; n >= nbase; n /= nbase)
l++;
if (opt == STL_VIRTCOL_ALT)
l++;
if (l > maxwid)
{
l += 2;
n = l - maxwid;
while (l-- > maxwid)
num /= nbase;
*t++ = '>';
*t++ = '%';
*t = t[-3];
*++t = 0;
vim_snprintf((char *)p, outlen - (p - out), (char *)nstr,
0, num, n);
}
else
vim_snprintf((char *)p, outlen - (p - out), (char *)nstr,
minwid, num);
p += STRLEN(p);
}
else
stl_items[curitem].stl_type = Empty;
if (num >= 0 || (!itemisflag && str != NULL && *str != NUL))
prevchar_isflag = FALSE; // Item not NULL, but not a flag
//
if (opt == STL_VIM_EXPR)
vim_free(str);
curitem++;
}
*p = NUL;
itemcnt = curitem;
#ifdef FEAT_EVAL
if (usefmt != fmt)
vim_free(usefmt);
#endif
width = vim_strsize(out);
if (maxwidth > 0 && width > maxwidth)
{
// Result is too long, must truncate somewhere.
l = 0;
if (itemcnt == 0)
s = out;
else
{
for ( ; l < itemcnt; l++)
if (stl_items[l].stl_type == Trunc)
{
// Truncate at %< item.
s = stl_items[l].stl_start;
break;
}
if (l == itemcnt)
{
// No %< item, truncate first item.
s = stl_items[0].stl_start;
l = 0;
}
}
if (width - vim_strsize(s) >= maxwidth)
{
// Truncation mark is beyond max length
if (has_mbyte)
{
s = out;
width = 0;
for (;;)
{
width += ptr2cells(s);
if (width >= maxwidth)
break;
s += (*mb_ptr2len)(s);
}
// Fill up for half a double-wide character.
while (++width < maxwidth)
MB_CHAR2BYTES(fillchar, s);
}
else
s = out + maxwidth - 1;
for (l = 0; l < itemcnt; l++)
if (stl_items[l].stl_start > s)
break;
itemcnt = l;
*s++ = '>';
*s = 0;
}
else
{
if (has_mbyte)
{
n = 0;
while (width >= maxwidth)
{
width -= ptr2cells(s + n);
n += (*mb_ptr2len)(s + n);
}
}
else
n = width - maxwidth + 1;
p = s + n;
STRMOVE(s + 1, p);
*s = '<';
--n; // count the '<'
for (; l < itemcnt; l++)
{
if (stl_items[l].stl_start - n >= s)
stl_items[l].stl_start -= n;
else
stl_items[l].stl_start = s;
}
// Fill up for half a double-wide character.
while (++width < maxwidth)
{
s = s + STRLEN(s);
MB_CHAR2BYTES(fillchar, s);
*s = NUL;
}
}
width = maxwidth;
}
else if (width < maxwidth && STRLEN(out) + maxwidth - width + 1 < outlen)
{
// Find how many separators there are, which we will use when
// figuring out how many groups there are.
int num_separators = 0;
for (l = 0; l < itemcnt; l++)
{
if (stl_items[l].stl_type == Separate)
{
// Create an array of the start location for each separator
// mark.
stl_separator_locations[num_separators] = l;
num_separators++;
}
}
// If we have separated groups, then we deal with it now
if (num_separators)
{
int standard_spaces;
int final_spaces;
standard_spaces = (maxwidth - width) / num_separators;
final_spaces = (maxwidth - width) -
standard_spaces * (num_separators - 1);
for (l = 0; l < num_separators; l++)
{
int dislocation = (l == (num_separators - 1)) ?
final_spaces : standard_spaces;
dislocation *= MB_CHAR2LEN(fillchar);
char_u *start = stl_items[stl_separator_locations[l]].stl_start;
char_u *seploc = start + dislocation;
STRMOVE(seploc, start);
for (s = start; s < seploc;)
MB_CHAR2BYTES(fillchar, s);
for (int i = stl_separator_locations[l] + 1; i < itemcnt; i++)
stl_items[i].stl_start += dislocation;
}
width = maxwidth;
}
}
// Store the info about highlighting.
if (hltab != NULL)
{
*hltab = stl_hltab;
sp = stl_hltab;
for (l = 0; l < itemcnt; l++)
{
if (stl_items[l].stl_type == Highlight)
{
sp->start = stl_items[l].stl_start;
sp->userhl = stl_items[l].stl_minwid;
sp++;
}
}
sp->start = NULL;
sp->userhl = 0;
}
// Store the info about tab pages labels.
if (tabtab != NULL)
{
*tabtab = stl_tabtab;
sp = stl_tabtab;
for (l = 0; l < itemcnt; l++)
{
if (stl_items[l].stl_type == TabPage)
{
sp->start = stl_items[l].stl_start;
sp->userhl = stl_items[l].stl_minwid;
sp++;
}
}
sp->start = NULL;
sp->userhl = 0;
}
redraw_not_allowed = save_redraw_not_allowed;
// A user function may reset KeyTyped, restore it.
KeyTyped = save_KeyTyped;
// Check for an error. If there is one the display will be messed up and
// might loop redrawing. Avoid that by making the corresponding option
// empty.
// TODO: find out why using called_emsg_before makes tests fail, does it
// matter?
// if (called_emsg > called_emsg_before)
if (did_emsg > did_emsg_before)
set_string_option_direct(opt_name, -1, (char_u *)"",
OPT_FREE | opt_scope, SID_ERROR);
return width;
}
#endif // FEAT_STL_OPT
/*
* Get relative cursor position in window into "buf[buflen]", in the localized
* percentage form like %99, 99%; using "Top", "Bot" or "All" when appropriate.
*/
void
get_rel_pos(
win_T *wp,
char_u *buf,
int buflen)
{
long above; // number of lines above window
long below; // number of lines below window
if (buflen < 3) // need at least 3 chars for writing
return;
above = wp->w_topline - 1;
#ifdef FEAT_DIFF
above += diff_check_fill(wp, wp->w_topline) - wp->w_topfill;
if (wp->w_topline == 1 && wp->w_topfill >= 1)
above = 0; // All buffer lines are displayed and there is an
// indication of filler lines, that can be considered
// seeing all lines.
#endif
below = wp->w_buffer->b_ml.ml_line_count - wp->w_botline + 1;
if (below <= 0)
vim_strncpy(buf, (char_u *)(above == 0 ? _("All") : _("Bot")),
(size_t)(buflen - 1));
else if (above <= 0)
vim_strncpy(buf, (char_u *)_("Top"), (size_t)(buflen - 1));
else
{
int perc = (above > 1000000L)
? (int)(above / ((above + below) / 100L))
: (int)(above * 100L / (above + below));
char *p = (char *)buf;
size_t l = buflen;
if (perc < 10)
{
// prepend one space
buf[0] = ' ';
++p;
--l;
}
// localized percentage value
vim_snprintf(p, l, _("%d%%"), perc);
}
}
/*
* Append (file 2 of 8) to "buf[buflen]", if editing more than one file.
* Return TRUE if it was appended.
*/
static int
append_arg_number(
win_T *wp,
char_u *buf,
int buflen,
int add_file) // Add "file" before the arg number
{
if (ARGCOUNT <= 1) // nothing to do
return FALSE;
char *msg;
switch ((wp->w_arg_idx_invalid ? 1 : 0) + (add_file ? 2 : 0))
{
case 0: msg = _(" (%d of %d)"); break;
case 1: msg = _(" ((%d) of %d)"); break;
case 2: msg = _(" (file %d of %d)"); break;
case 3: msg = _(" (file (%d) of %d)"); break;
}
char_u *p = buf + STRLEN(buf); // go to the end of the buffer
vim_snprintf((char *)p, (size_t)(buflen - (p - buf)), msg,
wp->w_arg_idx + 1, ARGCOUNT);
return TRUE;
}
/*
* If fname is not a full path, make it a full path.
* Returns pointer to allocated memory (NULL for failure).
*/
char_u *
fix_fname(char_u *fname)
{
/*
* Force expanding the path always for Unix, because symbolic links may
* mess up the full path name, even though it starts with a '/'.
* Also expand when there is ".." in the file name, try to remove it,
* because "c:/src/../README" is equal to "c:/README".
* Similarly "c:/src//file" is equal to "c:/src/file".
* For MS-Windows also expand names like "longna~1" to "longname".
*/
#ifdef UNIX
return FullName_save(fname, TRUE);
#else
if (!vim_isAbsName(fname)
|| strstr((char *)fname, "..") != NULL
|| strstr((char *)fname, "//") != NULL
# ifdef BACKSLASH_IN_FILENAME
|| strstr((char *)fname, "\\\\") != NULL
# endif
# if defined(MSWIN)
|| vim_strchr(fname, '~') != NULL
# endif
)
return FullName_save(fname, FALSE);
fname = vim_strsave(fname);
# ifdef USE_FNAME_CASE
if (fname != NULL)
fname_case(fname, 0); // set correct case for file name
# endif
return fname;
#endif
}
/*
* Make "*ffname" a full file name, set "*sfname" to "*ffname" if not NULL.
* "*ffname" becomes a pointer to allocated memory (or NULL).
* When resolving a link both "*sfname" and "*ffname" will point to the same
* allocated memory.
* The "*ffname" and "*sfname" pointer values on call will not be freed.
* Note that the resulting "*ffname" pointer should be considered not allocated.
*/
void
fname_expand(
buf_T *buf UNUSED,
char_u **ffname,
char_u **sfname)
{
if (*ffname == NULL) // no file name given, nothing to do
return;
if (*sfname == NULL) // no short file name given, use ffname
*sfname = *ffname;
*ffname = fix_fname(*ffname); // expand to full path
#ifdef FEAT_SHORTCUT
if (!buf->b_p_bin)
{
char_u *rfname;
// If the file name is a shortcut file, use the file it links to.
rfname = mch_resolve_path(*ffname, FALSE);
if (rfname != NULL)
{
vim_free(*ffname);
*ffname = rfname;
*sfname = rfname;
}
}
#endif
}
/*
* Open a window for a number of buffers.
*/
void
ex_buffer_all(exarg_T *eap)
{
buf_T *buf;
win_T *wp, *wpnext;
int split_ret = OK;
int p_ea_save;
int open_wins = 0;
int r;
int count; // Maximum number of windows to open.
int all; // When TRUE also load inactive buffers.
int had_tab = cmdmod.cmod_tab;
tabpage_T *tpnext;
if (eap->addr_count == 0) // make as many windows as possible
count = 9999;
else
count = eap->line2; // make as many windows as specified
if (eap->cmdidx == CMD_unhide || eap->cmdidx == CMD_sunhide)
all = FALSE;
else
all = TRUE;
// Stop Visual mode, the cursor and "VIsual" may very well be invalid after
// switching to another buffer.
reset_VIsual_and_resel();
setpcmark();
#ifdef FEAT_GUI
need_mouse_correct = TRUE;
#endif
/*
* Close superfluous windows (two windows for the same buffer).
* Also close windows that are not full-width.
*/
if (had_tab > 0)
goto_tabpage_tp(first_tabpage, TRUE, TRUE);
for (;;)
{
tpnext = curtab->tp_next;
for (wp = firstwin; wp != NULL; wp = wpnext)
{
wpnext = wp->w_next;
if ((wp->w_buffer->b_nwindows > 1
|| ((cmdmod.cmod_split & WSP_VERT)
? wp->w_height + wp->w_status_height < Rows - p_ch
- tabline_height()
: wp->w_width != Columns)
|| (had_tab > 0 && wp != firstwin))
&& !ONE_WINDOW
&& !(wp->w_closing || wp->w_buffer->b_locked > 0)
&& !win_unlisted(wp))
{
if (win_close(wp, FALSE) == FAIL)
break;
// Just in case an autocommand does something strange with
// windows: start all over...
wpnext = firstwin;
tpnext = first_tabpage;
open_wins = 0;
}
else
++open_wins;
}
// Without the ":tab" modifier only do the current tab page.
if (had_tab == 0 || tpnext == NULL)
break;
goto_tabpage_tp(tpnext, TRUE, TRUE);
}
/*
* Go through the buffer list. When a buffer doesn't have a window yet,
* open one. Otherwise move the window to the right position.
* Watch out for autocommands that delete buffers or windows!
*/
// Don't execute Win/Buf Enter/Leave autocommands here.
++autocmd_no_enter;
win_enter(lastwin, FALSE);
++autocmd_no_leave;
for (buf = firstbuf; buf != NULL && open_wins < count; buf = buf->b_next)
{
// Check if this buffer needs a window
if ((!all && buf->b_ml.ml_mfp == NULL) || !buf->b_p_bl)
continue;
if (had_tab != 0)
{
// With the ":tab" modifier don't move the window.
if (buf->b_nwindows > 0)
wp = lastwin; // buffer has a window, skip it
else
wp = NULL;
}
else
{
// Check if this buffer already has a window
FOR_ALL_WINDOWS(wp)
if (wp->w_buffer == buf)
break;
// If the buffer already has a window, move it
if (wp != NULL)
win_move_after(wp, curwin);
}
if (wp == NULL && split_ret == OK)
{
bufref_T bufref;
set_bufref(&bufref, buf);
// Split the window and put the buffer in it
p_ea_save = p_ea;
p_ea = TRUE; // use space from all windows
split_ret = win_split(0, WSP_ROOM | WSP_BELOW);
++open_wins;
p_ea = p_ea_save;
if (split_ret == FAIL)
continue;
// Open the buffer in this window.
swap_exists_action = SEA_DIALOG;
set_curbuf(buf, DOBUF_GOTO);
if (!bufref_valid(&bufref))
{
// autocommands deleted the buffer!!!
swap_exists_action = SEA_NONE;
break;
}
if (swap_exists_action == SEA_QUIT)
{
#if defined(FEAT_EVAL)
cleanup_T cs;
// Reset the error/interrupt/exception state here so that
// aborting() returns FALSE when closing a window.
enter_cleanup(&cs);
#endif
// User selected Quit at ATTENTION prompt; close this window.
win_close(curwin, TRUE);
--open_wins;
swap_exists_action = SEA_NONE;
swap_exists_did_quit = TRUE;
#if defined(FEAT_EVAL)
// Restore the error/interrupt/exception state if not
// discarded by a new aborting error, interrupt, or uncaught
// exception.
leave_cleanup(&cs);
#endif
}
else
handle_swap_exists(NULL);
}
ui_breakcheck();
if (got_int)
{
(void)vgetc(); // only break the file loading, not the rest
break;
}
#ifdef FEAT_EVAL
// Autocommands deleted the buffer or aborted script processing!!!
if (aborting())
break;
#endif
// When ":tab" was used open a new tab for a new window repeatedly.
if (had_tab > 0 && tabpage_index(NULL) <= p_tpm)
cmdmod.cmod_tab = 9999;
}
--autocmd_no_enter;
win_enter(firstwin, FALSE); // back to first window
--autocmd_no_leave;
/*
* Close superfluous windows.
*/
for (wp = lastwin; open_wins > count; )
{
r = (buf_hide(wp->w_buffer) || !bufIsChanged(wp->w_buffer)
|| autowrite(wp->w_buffer, FALSE) == OK);
if (!win_valid(wp))
{
// BufWrite Autocommands made the window invalid, start over
wp = lastwin;
}
else if (r)
{
win_close(wp, !buf_hide(wp->w_buffer));
--open_wins;
wp = lastwin;
}
else
{
wp = wp->w_prev;
if (wp == NULL)
break;
}
}
}
static int chk_modeline(linenr_T, int);
/*
* do_modelines() - process mode lines for the current file
*
* "flags" can be:
* OPT_WINONLY only set options local to window
* OPT_NOWIN don't set options local to window
*
* Returns immediately if the "ml" option isn't set.
*/
void
do_modelines(int flags)
{
linenr_T lnum;
int nmlines;
static int entered = 0;
if (!curbuf->b_p_ml || (nmlines = (int)p_mls) == 0)
return;
// Disallow recursive entry here. Can happen when executing a modeline
// triggers an autocommand, which reloads modelines with a ":do".
if (entered)
return;
++entered;
for (lnum = 1; curbuf->b_p_ml && lnum <= curbuf->b_ml.ml_line_count && lnum <= nmlines;
++lnum)
if (chk_modeline(lnum, flags) == FAIL)
nmlines = 0;
for (lnum = curbuf->b_ml.ml_line_count; curbuf->b_p_ml && lnum > 0 && lnum > nmlines
&& lnum > curbuf->b_ml.ml_line_count - nmlines; --lnum)
if (chk_modeline(lnum, flags) == FAIL)
nmlines = 0;
--entered;
}
#include "version.h" // for version number
/*
* chk_modeline() - check a single line for a mode string
* Return FAIL if an error encountered.
*/
static int
chk_modeline(
linenr_T lnum,
int flags) // Same as for do_modelines().
{
char_u *s;
char_u *e;
char_u *linecopy; // local copy of any modeline found
int prev;
int vers;
int end;
int retval = OK;
sctx_T save_current_sctx;
ESTACK_CHECK_DECLARATION;
prev = -1;
for (s = ml_get(lnum); *s != NUL; ++s)
{
if (prev == -1 || vim_isspace(prev))
{
if ((prev != -1 && STRNCMP(s, "ex:", (size_t)3) == 0)
|| STRNCMP(s, "vi:", (size_t)3) == 0)
break;
// Accept both "vim" and "Vim".
if ((s[0] == 'v' || s[0] == 'V') && s[1] == 'i' && s[2] == 'm')
{
if (s[3] == '<' || s[3] == '=' || s[3] == '>')
e = s + 4;
else
e = s + 3;
vers = getdigits(&e);
if (*e == ':'
&& (s[0] != 'V'
|| STRNCMP(skipwhite(e + 1), "set", 3) == 0)
&& (s[3] == ':'
|| (VIM_VERSION_100 >= vers && SAFE_isdigit(s[3]))
|| (VIM_VERSION_100 < vers && s[3] == '<')
|| (VIM_VERSION_100 > vers && s[3] == '>')
|| (VIM_VERSION_100 == vers && s[3] == '=')))
break;
}
}
prev = *s;
}
if (*s)
{
do // skip over "ex:", "vi:" or "vim:"
++s;
while (s[-1] != ':');
s = linecopy = vim_strsave(s); // copy the line, it will change
if (linecopy == NULL)
return FAIL;
// prepare for emsg()
estack_push(ETYPE_MODELINE, (char_u *)"modelines", lnum);
ESTACK_CHECK_SETUP;
end = FALSE;
while (end == FALSE)
{
s = skipwhite(s);
if (*s == NUL)
break;
/*
* Find end of set command: ':' or end of line.
* Skip over "\:", replacing it with ":".
*/
for (e = s; *e != ':' && *e != NUL; ++e)
if (e[0] == '\\' && e[1] == ':')
STRMOVE(e, e + 1);
if (*e == NUL)
end = TRUE;
/*
* If there is a "set" command, require a terminating ':' and
* ignore the stuff after the ':'.
* "vi:set opt opt opt: foo" -- foo not interpreted
* "vi:opt opt opt: foo" -- foo interpreted
* Accept "se" for compatibility with Elvis.
*/
if (STRNCMP(s, "set ", (size_t)4) == 0
|| STRNCMP(s, "se ", (size_t)3) == 0)
{
if (*e != ':') // no terminating ':'?
break;
end = TRUE;
s = vim_strchr(s, ' ') + 1;
}
*e = NUL; // truncate the set command
if (*s != NUL) // skip over an empty "::"
{
int secure_save = secure;
save_current_sctx = current_sctx;
current_sctx.sc_version = 1;
#ifdef FEAT_EVAL
current_sctx.sc_sid = SID_MODELINE;
current_sctx.sc_seq = 0;
current_sctx.sc_lnum = lnum;
#endif
// Make sure no risky things are executed as a side effect.
secure = 1;
retval = do_set(s, OPT_MODELINE | OPT_LOCAL | flags);
secure = secure_save;
current_sctx = save_current_sctx;
if (retval == FAIL) // stop if error found
break;
}
s = e + 1; // advance to next part
}
ESTACK_CHECK_NOW;
estack_pop();
vim_free(linecopy);
}
return retval;
}
/*
* Return TRUE if "buf" is a normal buffer, 'buftype' is empty.
*/
int
bt_normal(buf_T *buf)
{
return buf != NULL && buf->b_p_bt[0] == NUL;
}
/*
* Return TRUE if "buf" is the quickfix buffer.
*/
int
bt_quickfix(buf_T *buf UNUSED)
{
#ifdef FEAT_QUICKFIX
return buf != NULL && buf_valid(buf) && buf->b_p_bt[0] == 'q';
#else
return FALSE;
#endif
}
/*
* Return TRUE if "buf" is a terminal buffer.
*/
int
bt_terminal(buf_T *buf UNUSED)
{
#if defined(FEAT_TERMINAL)
return buf != NULL && buf->b_p_bt[0] == 't';
#else
return FALSE;
#endif
}
/*
* Return TRUE if "buf" is a help buffer.
*/
int
bt_help(buf_T *buf)
{
return buf != NULL && buf->b_help;
}
/*
* Return TRUE if "buf" is a prompt buffer.
*/
int
bt_prompt(buf_T *buf)
{
return buf != NULL && buf->b_p_bt[0] == 'p' && buf->b_p_bt[1] == 'r';
}
#if defined(FEAT_PROP_POPUP) || defined(PROTO)
/*
* Return TRUE if "buf" is a buffer for a popup window.
*/
int
bt_popup(buf_T *buf)
{
return buf != NULL && buf->b_p_bt != NULL
&& buf->b_p_bt[0] == 'p' && buf->b_p_bt[1] == 'o';
}
#endif
/*
* Return TRUE if "buf" is a "nofile", "acwrite", "terminal" or "prompt"
* buffer. This means the buffer name may not be a file name, at least not for
* writing the buffer.
*/
int
bt_nofilename(buf_T *buf)
{
return buf != NULL && ((buf->b_p_bt[0] == 'n' && buf->b_p_bt[2] == 'f')
|| buf->b_p_bt[0] == 'a'
|| buf->b_p_bt[0] == 't'
|| buf->b_p_bt[0] == 'p');
}
/*
* Return TRUE if "buf" is a "nofile", "quickfix", "terminal" or "prompt"
* buffer. This means the buffer is not to be read from a file.
*/
static int
bt_nofileread(buf_T *buf)
{
return buf != NULL && ((buf->b_p_bt[0] == 'n' && buf->b_p_bt[2] == 'f')
|| buf->b_p_bt[0] == 't'
|| buf->b_p_bt[0] == 'q'
|| buf->b_p_bt[0] == 'p');
}
#if defined(FEAT_QUICKFIX) || defined(PROTO)
/*
* Return TRUE if "buf" has 'buftype' set to "nofile".
*/
int
bt_nofile(buf_T *buf)
{
return buf != NULL && buf->b_p_bt[0] == 'n' && buf->b_p_bt[2] == 'f';
}
#endif
/*
* Return TRUE if "buf" is a "nowrite", "nofile", "terminal", "prompt", or
* "popup" buffer.
*/
int
bt_dontwrite(buf_T *buf)
{
return buf != NULL && (buf->b_p_bt[0] == 'n'
|| buf->b_p_bt[0] == 't'
|| buf->b_p_bt[0] == 'p');
}
int
bt_dontwrite_msg(buf_T *buf)
{
if (bt_dontwrite(buf))
{
emsg(_(e_cannot_write_buftype_option_is_set));
return TRUE;
}
return FALSE;
}
/*
* Return TRUE if the buffer should be hidden, according to 'hidden', ":hide"
* and 'bufhidden'.
*/
int
buf_hide(buf_T *buf)
{
// 'bufhidden' overrules 'hidden' and ":hide", check it first
switch (buf->b_p_bh[0])
{
case 'u': // "unload"
case 'w': // "wipe"
case 'd': return FALSE; // "delete"
case 'h': return TRUE; // "hide"
}
return (p_hid || (cmdmod.cmod_flags & CMOD_HIDE));
}
/*
* Return special buffer name.
* Returns NULL when the buffer has a normal file name.
*/
char_u *
buf_spname(buf_T *buf)
{
#if defined(FEAT_QUICKFIX)
if (bt_quickfix(buf))
{
/*
* Differentiate between the quickfix and location list buffers using
* the buffer number stored in the global quickfix stack.
*/
if (buf->b_fnum == qf_stack_get_bufnr())
return (char_u *)_(msg_qflist);
else
return (char_u *)_(msg_loclist);
}
#endif
// There is no _file_ when 'buftype' is "nofile", b_sfname
// contains the name as specified by the user.
if (bt_nofilename(buf))
{
#ifdef FEAT_TERMINAL
if (buf->b_term != NULL)
return term_get_status_text(buf->b_term);
#endif
if (buf->b_fname != NULL)
return buf->b_fname;
if (buf == cmdwin_buf)
return (char_u *)_("[Command Line]");
#ifdef FEAT_JOB_CHANNEL
if (bt_prompt(buf))
return (char_u *)_("[Prompt]");
#endif
#ifdef FEAT_PROP_POPUP
if (bt_popup(buf))
return (char_u *)_("[Popup]");
#endif
return (char_u *)_("[Scratch]");
}
if (buf->b_fname == NULL)
return buf_get_fname(buf);
return NULL;
}
/*
* Get "buf->b_fname", use "[No Name]" if it is NULL.
*/
char_u *
buf_get_fname(buf_T *buf)
{
if (buf->b_fname == NULL)
return (char_u *)_("[No Name]");
return buf->b_fname;
}
/*
* Set 'buflisted' for curbuf to "on" and trigger autocommands if it changed.
*/
void
set_buflisted(int on)
{
if (on == curbuf->b_p_bl)
return;
curbuf->b_p_bl = on;
if (on)
apply_autocmds(EVENT_BUFADD, NULL, NULL, FALSE, curbuf);
else
apply_autocmds(EVENT_BUFDELETE, NULL, NULL, FALSE, curbuf);
}
/*
* Read the file for "buf" again and check if the contents changed.
* Return TRUE if it changed or this could not be checked.
*/
int
buf_contents_changed(buf_T *buf)
{
buf_T *newbuf;
int differ = TRUE;
linenr_T lnum;
aco_save_T aco;
exarg_T ea;
// Allocate a buffer without putting it in the buffer list.
newbuf = buflist_new(NULL, NULL, (linenr_T)1, BLN_DUMMY);
if (newbuf == NULL)
return TRUE;
// Force the 'fileencoding' and 'fileformat' to be equal.
if (prep_exarg(&ea, buf) == FAIL)
{
wipe_buffer(newbuf, FALSE);
return TRUE;
}
// Set curwin/curbuf to buf and save a few things.
aucmd_prepbuf(&aco, newbuf);
if (curbuf != newbuf)
{
// Failed to find a window for "newbuf".
wipe_buffer(newbuf, FALSE);
return TRUE;
}
// We don't want to trigger autocommands now, they may have nasty
// side-effects like wiping buffers
block_autocmds();
if (ml_open(curbuf) == OK
&& readfile(buf->b_ffname, buf->b_fname,
(linenr_T)0, (linenr_T)0, (linenr_T)MAXLNUM,
&ea, READ_NEW | READ_DUMMY) == OK)
{
// compare the two files line by line
if (buf->b_ml.ml_line_count == curbuf->b_ml.ml_line_count)
{
differ = FALSE;
for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count; ++lnum)
if (STRCMP(ml_get_buf(buf, lnum, FALSE), ml_get(lnum)) != 0)
{
differ = TRUE;
break;
}
}
}
vim_free(ea.cmd);
// restore curwin/curbuf and a few other things
aucmd_restbuf(&aco);
if (curbuf != newbuf) // safety check
wipe_buffer(newbuf, FALSE);
unblock_autocmds();
return differ;
}
/*
* Wipe out a buffer and decrement the last buffer number if it was used for
* this buffer. Call this to wipe out a temp buffer that does not contain any
* marks.
*/
void
wipe_buffer(
buf_T *buf,
int aucmd) // When TRUE trigger autocommands.
{
if (buf->b_fnum == top_file_num - 1)
--top_file_num;
if (!aucmd) // Don't trigger BufDelete autocommands here.
block_autocmds();
close_buffer(NULL, buf, DOBUF_WIPE, FALSE, TRUE);
if (!aucmd)
unblock_autocmds();
}