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/* vi:set ts=8 sts=4 sw=4:
*
* 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"
#if defined(FEAT_CMDL_COMPL) || defined(FEAT_LISTCMDS) || defined(FEAT_EVAL) || defined(FEAT_PERL)
static char_u *buflist_match __ARGS((regprog_T *prog, buf_T *buf));
# define HAVE_BUFLIST_MATCH
static char_u *fname_match __ARGS((regprog_T *prog, char_u *name));
#endif
static void buflist_setfpos __ARGS((buf_T *buf, win_T *win, linenr_T lnum, colnr_T col, int copy_options));
static wininfo_T *find_wininfo __ARGS((buf_T *buf, int skip_diff_buffer));
#ifdef UNIX
static buf_T *buflist_findname_stat __ARGS((char_u *ffname, struct stat *st));
static int otherfile_buf __ARGS((buf_T *buf, char_u *ffname, struct stat *stp));
static int buf_same_ino __ARGS((buf_T *buf, struct stat *stp));
#else
static int otherfile_buf __ARGS((buf_T *buf, char_u *ffname));
#endif
#ifdef FEAT_TITLE
static int ti_change __ARGS((char_u *str, char_u **last));
#endif
static int append_arg_number __ARGS((win_T *wp, char_u *buf, int buflen, int add_file));
static void free_buffer __ARGS((buf_T *));
static void free_buffer_stuff __ARGS((buf_T *buf, int free_options));
static void clear_wininfo __ARGS((buf_T *buf));
#ifdef UNIX
# define dev_T dev_t
#else
# define dev_T unsigned
#endif
#if defined(FEAT_SIGNS)
static void insert_sign __ARGS((buf_T *buf, signlist_T *prev, signlist_T *next, int id, linenr_T lnum, int typenr));
#endif
#if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
static char *msg_loclist = N_("[Location List]");
static char *msg_qflist = N_("[Quickfix List]");
#endif
#ifdef FEAT_AUTOCMD
static char *e_auabort = N_("E855: Autocommands caused command to abort");
#endif
/*
* Open current buffer, that is: open the memfile and read the file into
* memory.
* Return FAIL for failure, OK otherwise.
*/
int
open_buffer(read_stdin, eap, flags)
int read_stdin; /* read file from stdin */
exarg_T *eap; /* for forced 'ff' and 'fenc' or NULL */
int flags; /* extra flags for readfile() */
{
int retval = OK;
#ifdef FEAT_AUTOCMD
buf_T *old_curbuf;
#endif
/*
* 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);
for (curbuf = firstbuf; curbuf != NULL; curbuf = curbuf->b_next)
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(_("E82: Cannot allocate any buffer, exiting..."));
getout(2);
}
EMSG(_("E83: Cannot allocate buffer, using other one..."));
enter_buffer(curbuf);
return FAIL;
}
#ifdef FEAT_AUTOCMD
/* The autocommands in readfile() may change the buffer, but only AFTER
* reading the file. */
old_curbuf = curbuf;
modified_was_set = FALSE;
#endif
/* mark cursor position as being invalid */
curwin->w_valid = 0;
if (curbuf->b_ffname != NULL
#ifdef FEAT_NETBEANS_INTG
&& netbeansReadFile
#endif
)
{
#ifdef FEAT_NETBEANS_INTG
int oldFire = netbeansFireChanges;
netbeansFireChanges = 0;
#endif
retval = readfile(curbuf->b_ffname, curbuf->b_fname,
(linenr_T)0, (linenr_T)0, (linenr_T)MAXLNUM, eap,
flags | READ_NEW);
#ifdef FEAT_NETBEANS_INTG
netbeansFireChanges = oldFire;
#endif
/* Help buffer is filtered. */
if (curbuf->b_help)
fix_help_buffer();
}
else if (read_stdin)
{
int save_bin = curbuf->b_p_bin;
linenr_T line_count;
/*
* 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)
{
line_count = curbuf->b_ml.ml_line_count;
retval = readfile(NULL, NULL, (linenr_T)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, FALSE);
}
else
{
/* Delete the converted lines. */
while (curbuf->b_ml.ml_line_count > line_count)
ml_delete(line_count, FALSE);
}
/* Put the cursor on the first line. */
curwin->w_cursor.lnum = 1;
curwin->w_cursor.col = 0;
/* Set or reset 'modified' before executing autocommands, so that
* it can be changed there. */
if (!readonlymode && !bufempty())
changed();
else if (retval != FAIL)
unchanged(curbuf, FALSE);
#ifdef FEAT_AUTOCMD
# ifdef FEAT_EVAL
apply_autocmds_retval(EVENT_STDINREADPOST, NULL, NULL, FALSE,
curbuf, &retval);
# else
apply_autocmds(EVENT_STDINREADPOST, NULL, NULL, FALSE, curbuf);
# endif
#endif
}
}
/* if first time loading this buffer, init b_chartab[] */
if (curbuf->b_flags & BF_NEVERLOADED)
(void)buf_init_chartab(curbuf, FALSE);
/*
* 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 auto commands.
*/
/* 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)
#ifdef FEAT_AUTOCMD
|| modified_was_set /* ":set modified" used in autocmd */
# ifdef FEAT_EVAL
|| (aborting() && vim_strchr(p_cpo, CPO_INTMOD) != NULL)
# endif
#endif
)
changed();
else if (retval != FAIL && !read_stdin)
unchanged(curbuf, FALSE);
save_file_ff(curbuf); /* keep this fileformat */
/* 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
#ifdef FEAT_AUTOCMD
/* 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
#endif
if (retval != FAIL)
{
#ifdef FEAT_AUTOCMD
/*
* The autocommands may have changed the current buffer. Apply the
* modelines to the correct buffer, if it still exists and is loaded.
*/
if (buf_valid(old_curbuf) && old_curbuf->b_ml.ml_mfp != NULL)
{
aco_save_T aco;
/* Go to the buffer that was opened. */
aucmd_prepbuf(&aco, old_curbuf);
#endif
do_modelines(0);
curbuf->b_flags &= ~(BF_CHECK_RO | BF_NEVERLOADED);
#ifdef FEAT_AUTOCMD
# 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);
}
#endif
}
return retval;
}
/*
* Return TRUE if "buf" points to a valid buffer (in the buffer list).
*/
int
buf_valid(buf)
buf_T *buf;
{
buf_T *bp;
for (bp = firstbuf; bp != NULL; bp = bp->b_next)
if (bp == buf)
return TRUE;
return FALSE;
}
/*
* 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_DELETE buffer is unloaded and removed from buffer list
* DOBUF_WIPE buffer is unloaded and really deleted
* 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.
*/
void
close_buffer(win, buf, action, abort_if_last)
win_T *win; /* if not NULL, set b_last_cursor */
buf_T *buf;
int action;
int abort_if_last UNUSED;
{
#ifdef FEAT_AUTOCMD
int is_curbuf;
int nwindows;
#endif
int unload_buf = (action != 0);
int del_buf = (action == DOBUF_DEL || action == DOBUF_WIPE);
int wipe_buf = (action == DOBUF_WIPE);
#ifdef FEAT_QUICKFIX
/*
* 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;
#endif
if (win != NULL)
{
/* 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);
}
#ifdef FEAT_AUTOCMD
/* When the buffer is no longer in a window, trigger BufWinLeave */
if (buf->b_nwindows == 1)
{
buf->b_closing = TRUE;
apply_autocmds(EVENT_BUFWINLEAVE, buf->b_fname, buf->b_fname,
FALSE, buf);
if (!buf_valid(buf))
{
/* Autocommands deleted the buffer. */
aucmd_abort:
EMSG(_(e_auabort));
return;
}
buf->b_closing = FALSE;
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_closing = TRUE;
apply_autocmds(EVENT_BUFHIDDEN, buf->b_fname, buf->b_fname,
FALSE, buf);
if (!buf_valid(buf))
/* Autocommands deleted the buffer. */
goto aucmd_abort;
buf->b_closing = FALSE;
if (abort_if_last && one_window())
/* Autocommands made this the only window. */
goto aucmd_abort;
}
# ifdef FEAT_EVAL
if (aborting()) /* autocmds may abort script processing */
return;
# endif
}
nwindows = buf->b_nwindows;
#endif
/* decrease the link count from windows (unless not in any window) */
if (buf->b_nwindows > 0)
--buf->b_nwindows;
/* Return when a window is displaying the buffer or when it's not
* unloaded. */
if (buf->b_nwindows > 0 || !unload_buf)
return;
/* Always remove the buffer when there is no file name. */
if (buf->b_ffname == NULL)
del_buf = TRUE;
/*
* Free all things allocated for this buffer.
* Also calls the "BufDelete" autocommands when del_buf is TRUE.
*/
#ifdef FEAT_AUTOCMD
/* 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;
#endif
buf_freeall(buf, (del_buf ? BFA_DEL : 0) + (wipe_buf ? BFA_WIPE : 0));
if (
#ifdef FEAT_WINDOWS
win_valid(win) &&
#else
win != NULL &&
#endif
win->w_buffer == buf)
win->w_buffer = NULL; /* make sure we don't use the buffer now */
#ifdef FEAT_AUTOCMD
/* Autocommands may have deleted the buffer. */
if (!buf_valid(buf))
return;
# ifdef FEAT_EVAL
if (aborting()) /* autocmds may abort script processing */
return;
# endif
/* 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;
/*
* 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;
#endif
#ifdef FEAT_ODB_EDITOR
odb_buffer_close(buf);
#endif
/* Change directories when the 'acd' option is set. */
DO_AUTOCHDIR
/*
* Remove the buffer from the list.
*/
if (wipe_buf)
{
#ifdef FEAT_SUN_WORKSHOP
if (usingSunWorkShop)
workshop_file_closed_lineno((char *)buf->b_ffname,
(int)buf->b_last_cursor.lnum);
#endif
vim_free(buf->b_ffname);
vim_free(buf->b_sfname);
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;
}
}
/*
* Make buffer not contain a file.
*/
void
buf_clear_file(buf)
buf_T *buf;
{
buf->b_ml.ml_line_count = 1;
unchanged(buf, TRUE);
#ifndef SHORT_FNAME
buf->b_shortname = FALSE;
#endif
buf->b_p_eol = TRUE;
buf->b_start_eol = TRUE;
#ifdef FEAT_MBYTE
buf->b_p_bomb = FALSE;
buf->b_start_bomb = FALSE;
#endif
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. 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
*/
void
buf_freeall(buf, flags)
buf_T *buf;
int flags;
{
#ifdef FEAT_AUTOCMD
int is_curbuf = (buf == curbuf);
buf->b_closing = TRUE;
apply_autocmds(EVENT_BUFUNLOAD, buf->b_fname, buf->b_fname, FALSE, buf);
if (!buf_valid(buf)) /* autocommands may delete the buffer */
return;
if ((flags & BFA_DEL) && buf->b_p_bl)
{
apply_autocmds(EVENT_BUFDELETE, buf->b_fname, buf->b_fname, FALSE, buf);
if (!buf_valid(buf)) /* autocommands may delete the buffer */
return;
}
if (flags & BFA_WIPE)
{
apply_autocmds(EVENT_BUFWIPEOUT, buf->b_fname, buf->b_fname,
FALSE, buf);
if (!buf_valid(buf)) /* autocommands may delete the buffer */
return;
}
buf->b_closing = FALSE;
# ifdef FEAT_EVAL
if (aborting()) /* autocmds may abort script processing */
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;
#endif
#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 (firstwin != NULL && curwin->w_buffer == buf)
reset_synblock(curwin);
#endif
#ifdef FEAT_FOLDING
/* No folds in an empty buffer. */
# ifdef FEAT_WINDOWS
{
win_T *win;
tabpage_T *tp;
FOR_ALL_TAB_WINDOWS(tp, win)
if (win->w_buffer == buf)
clearFolding(win);
}
# else
if (curwin->w_buffer == buf)
clearFolding(curwin);
# endif
#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)
{
u_blockfree(buf); /* free the memory allocated for undo */
u_clearall(buf); /* reset all undo information */
}
#ifdef FEAT_SYN_HL
syntax_clear(&buf->b_s); /* reset syntax info */
#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)
buf_T *buf;
{
free_buffer_stuff(buf, TRUE);
#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_AUTOCMD
aubuflocal_remove(buf);
#endif
vim_free(buf);
}
/*
* Free stuff in the buffer for ":bdel" and when wiping out the buffer.
*/
static void
free_buffer_stuff(buf, free_options)
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
vars_clear(&buf->b_vars.dv_hashtab); /* free all internal variables */
hash_init(&buf->b_vars.dv_hashtab);
#endif
#ifdef FEAT_USR_CMDS
uc_clear(&buf->b_ucmds); /* clear local user commands */
#endif
#ifdef FEAT_SIGNS
buf_delete_signs(buf); /* delete any signs */
#endif
#ifdef FEAT_NETBEANS_INTG
netbeans_file_killed(buf);
#endif
#ifdef FEAT_LOCALMAP
map_clear_int(buf, MAP_ALL_MODES, TRUE, FALSE); /* clear local mappings */
map_clear_int(buf, MAP_ALL_MODES, TRUE, TRUE); /* clear local abbrevs */
#endif
#ifdef FEAT_MBYTE
vim_free(buf->b_start_fenc);
buf->b_start_fenc = NULL;
#endif
}
/*
* Free the b_wininfo list for buffer "buf".
*/
static void
clear_wininfo(buf)
buf_T *buf;
{
wininfo_T *wip;
while (buf->b_wininfo != NULL)
{
wip = buf->b_wininfo;
buf->b_wininfo = wip->wi_next;
if (wip->wi_optset)
{
clear_winopt(&wip->wi_opt);
#ifdef FEAT_FOLDING
deleteFoldRecurse(&wip->wi_folds);
#endif
}
vim_free(wip);
}
}
#if defined(FEAT_LISTCMDS) || defined(PROTO)
/*
* Go to another buffer. Handles the result of the ATTENTION dialog.
*/
void
goto_buffer(eap, start, dir, count)
exarg_T *eap;
int start;
int dir;
int count;
{
# if defined(FEAT_WINDOWS) && defined(HAS_SWAP_EXISTS_ACTION)
buf_T *old_curbuf = curbuf;
swap_exists_action = SEA_DIALOG;
# endif
(void)do_buffer(*eap->cmd == 's' ? DOBUF_SPLIT : DOBUF_GOTO,
start, dir, count, eap->forceit);
# if defined(FEAT_WINDOWS) && defined(HAS_SWAP_EXISTS_ACTION)
if (swap_exists_action == SEA_QUIT && *eap->cmd == 's')
{
# if defined(FEAT_AUTOCMD) && 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 = SEA_NONE;
swap_exists_did_quit = TRUE;
# if defined(FEAT_AUTOCMD) && 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);
# endif
}
#endif
#if defined(HAS_SWAP_EXISTS_ACTION) || defined(PROTO)
/*
* Handle the situation of swap_exists_action being set.
* It is allowed for "old_curbuf" to be NULL or invalid.
*/
void
handle_swap_exists(old_curbuf)
buf_T *old_curbuf;
{
# if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
cleanup_T cs;
# endif
if (swap_exists_action == SEA_QUIT)
{
# if defined(FEAT_AUTOCMD) && 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);
if (!buf_valid(old_curbuf) || old_curbuf == curbuf)
old_curbuf = buflist_new(NULL, NULL, 1L, BLN_CURBUF | BLN_LISTED);
if (old_curbuf != NULL)
enter_buffer(old_curbuf);
/* If "old_curbuf" is NULL we are in big trouble here... */
# if defined(FEAT_AUTOCMD) && 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_AUTOCMD) && 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();
MSG_PUTS("\n"); /* don't overwrite the last message */
cmdline_row = msg_row;
do_modelines(0);
# if defined(FEAT_AUTOCMD) && 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;
}
#endif
#if defined(FEAT_LISTCMDS) || defined(PROTO)
/*
* 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_u *
do_bufdel(command, arg, addr_count, start_bnr, end_bnr, forceit)
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_u *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 (char_u *)_(e_trailing);
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(command, DOBUF_FIRST, FORWARD, (int)bnr,
forceit) == 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, 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, _("E515: No buffers were unloaded"));
else if (command == DOBUF_DEL)
STRCPY(IObuff, _("E516: No buffers were deleted"));
else
STRCPY(IObuff, _("E517: No buffers were wiped out"));
errormsg = IObuff;
}
else if (deleted >= p_report)
{
if (command == DOBUF_UNLOAD)
{
if (deleted == 1)
MSG(_("1 buffer unloaded"));
else
smsg((char_u *)_("%d buffers unloaded"), deleted);
}
else if (command == DOBUF_DEL)
{
if (deleted == 1)
MSG(_("1 buffer deleted"));
else
smsg((char_u *)_("%d buffers deleted"), deleted);
}
else
{
if (deleted == 1)
MSG(_("1 buffer wiped out"));
else
smsg((char_u *)_("%d buffers wiped out"), deleted);
}
}
}
return errormsg;
}
/*
* 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
*
* 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.
*/
int
do_buffer(action, start, dir, count, forceit)
int action;
int start;
int dir; /* FORWARD or BACKWARD */
int count; /* buffer number or number of buffers */
int forceit; /* TRUE for :...! */
{
buf_T *buf;
buf_T *bp;
int unload = (action == DOBUF_UNLOAD || action == DOBUF_DEL
|| action == DOBUF_WIPE);
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(_("E84: 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(_("E85: 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)
EMSGN(_("E86: Buffer %ld does not exist"), count);
}
else if (dir == FORWARD)
EMSG(_("E87: Cannot go beyond last buffer"));
else
EMSG(_("E88: Cannot go before first buffer"));
return FAIL;
}
#ifdef FEAT_GUI
need_mouse_correct = TRUE;
#endif
#ifdef FEAT_LISTCMDS
/*
* delete buffer buf from memory and/or the list
*/
if (unload)
{
int forward;
int retval;
/* When unloading or deleting a buffer that's already unloaded and
* unlisted: fail silently. */
if (action != DOBUF_WIPE && buf->b_ml.ml_mfp == NULL && !buf->b_p_bl)
return FAIL;
if (!forceit && bufIsChanged(buf))
{
#if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)
if ((p_confirm || cmdmod.confirm) && p_write)
{
dialog_changed(buf, FALSE);
# ifdef FEAT_AUTOCMD
if (!buf_valid(buf))
/* Autocommand deleted buffer, oops! It's not changed
* now. */
return FAIL;
# endif
/* If it's still changed fail silently, the dialog already
* mentioned why it fails. */
if (bufIsChanged(buf))
return FAIL;
}
else
#endif
{
EMSGN(_("E89: No write since last change for buffer %ld (add ! to override)"),
buf->b_fnum);
return FAIL;
}
}
/*
* If deleting the last (listed) buffer, make it empty.
* The last (listed) buffer cannot be unloaded.
*/
for (bp = firstbuf; bp != NULL; bp = bp->b_next)
if (bp->b_p_bl && bp != buf)
break;
if (bp == NULL && buf == curbuf)
{
if (action == DOBUF_UNLOAD)
{
EMSG(_("E90: Cannot unload last buffer"));
return FAIL;
}
/* Close any other windows on this buffer, then make it empty. */
#ifdef FEAT_WINDOWS
close_windows(buf, TRUE);
#endif
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 && buf_valid(buf) && buf->b_nwindows == 0)
close_buffer(NULL, buf, action, FALSE);
return retval;
}
#ifdef FEAT_WINDOWS
/*
* 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
# ifdef FEAT_AUTOCMD
&& !(curwin->w_closing || curwin->w_buffer->b_closing)
# endif
&& (firstwin != lastwin || first_tabpage->tp_next != NULL))
win_close(curwin, FALSE);
#endif
/*
* If the buffer to be deleted is not the current one, delete it here.
*/
if (buf != curbuf)
{
#ifdef FEAT_WINDOWS
close_windows(buf, FALSE);
#endif
if (buf != curbuf && buf_valid(buf) && buf->b_nwindows <= 0)
close_buffer(NULL, buf, action, FALSE);
return OK;
}
/*
* Deleting the current buffer: Need to find another buffer to go to.
* There must be another, otherwise it would have been handled above.
* First use au_new_curbuf, 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 */
#ifdef FEAT_AUTOCMD
if (au_new_curbuf != NULL && buf_valid(au_new_curbuf))
buf = au_new_curbuf;
# ifdef FEAT_JUMPLIST
else
# endif
#endif
#ifdef FEAT_JUMPLIST
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)
{
if (buf == curbuf || !buf->b_p_bl)
buf = NULL; /* skip current and unlisted bufs */
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;
}
}
#endif
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)
{
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 (buf = firstbuf; buf != NULL; buf = buf->b_next)
if (buf->b_p_bl && buf != curbuf)
break;
}
if (buf == NULL) /* Still no buffer, just take one */
{
if (curbuf->b_next != NULL)
buf = curbuf->b_next;
else
buf = curbuf->b_prev;
}
}
/*
* make buf current buffer
*/
if (action == DOBUF_SPLIT) /* split window first */
{
# ifdef FEAT_WINDOWS
/* If 'switchbuf' contains "useopen": jump to first window containing
* "buf" if one exists */
if ((swb_flags & SWB_USEOPEN) && buf_jump_open_win(buf))
return OK;
/* If 'switchbuf' contains "usetab": jump to first window in any tab
* page containing "buf" if one exists */
if ((swb_flags & SWB_USETAB) && buf_jump_open_tab(buf))
return OK;
if (win_split(0, 0) == FAIL)
# endif
return FAIL;
}
#endif
/* 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, forceit))
{
#if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)
if ((p_confirm || cmdmod.confirm) && p_write)
{
dialog_changed(curbuf, FALSE);
# ifdef FEAT_AUTOCMD
if (!buf_valid(buf))
/* Autocommand deleted buffer, oops! */
return FAIL;
# endif
}
if (bufIsChanged(curbuf))
#endif
{
EMSG(_(e_nowrtmsg));
return FAIL;
}
}
/* Go to the other buffer. */
set_curbuf(buf, action);
#if defined(FEAT_LISTCMDS) \
&& (defined(FEAT_SCROLLBIND) || defined(FEAT_CURSORBIND))
if (action == DOBUF_SPLIT)
{
RESET_BINDING(curwin); /* reset 'scrollbind' and 'cursorbind' */
}
#endif
#if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
if (aborting()) /* autocmds may abort script processing */
return FAIL;
#endif
return OK;
}
#endif /* FEAT_LISTCMDS */
/*
* 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
*/
void
set_curbuf(buf, action)
buf_T *buf;
int action;
{
buf_T *prevbuf;
int unload = (action == DOBUF_UNLOAD || action == DOBUF_DEL
|| action == DOBUF_WIPE);
setpcmark();
if (!cmdmod.keepalt)
curwin->w_alt_fnum = curbuf->b_fnum; /* remember alternate file */
buflist_altfpos(curwin); /* remember curpos */
#ifdef FEAT_VISUAL
/* Don't restart Select mode after switching to another buffer. */
VIsual_reselect = FALSE;
#endif
/* close_windows() or apply_autocmds() may change curbuf */
prevbuf = curbuf;
#ifdef FEAT_AUTOCMD
apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf);
# ifdef FEAT_EVAL
if (buf_valid(prevbuf) && !aborting())
# else
if (buf_valid(prevbuf))
# endif
#endif
{
#ifdef FEAT_SYN_HL
if (prevbuf == curwin->w_buffer)
reset_synblock(curwin);
#endif
#ifdef FEAT_WINDOWS
if (unload)
close_windows(prevbuf, FALSE);
#endif
#if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
if (buf_valid(prevbuf) && !aborting())
#else
if (buf_valid(prevbuf))
#endif
{
#ifdef FEAT_WINDOWS
win_T *previouswin = curwin;
#endif
if (prevbuf == curbuf)
u_sync(FALSE);
close_buffer(prevbuf == curwin->w_buffer ? curwin : NULL, prevbuf,
unload ? action : (action == DOBUF_GOTO
&& !P_HID(prevbuf)
&& !bufIsChanged(prevbuf)) ? DOBUF_UNLOAD : 0, FALSE);
#ifdef FEAT_WINDOWS
if (curwin != previouswin && win_valid(previouswin))
/* autocommands changed curwin, Grr! */
curwin = previouswin;
#endif
}
}
#ifdef FEAT_AUTOCMD
/* 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 */
if ((buf_valid(buf) && buf != curbuf
# ifdef FEAT_EVAL
&& !aborting()
# endif
# ifdef FEAT_WINDOWS
) || curwin->w_buffer == NULL
# endif
)
#endif
enter_buffer(buf);
}
/*
* Enter a new current buffer.
* Old curbuf must have been abandoned already!
*/
void
enter_buffer(buf)
buf_T *buf;
{
/* 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
/* Get the buffer in the current window. */
curwin->w_buffer = buf;
curbuf = buf;
++curbuf->b_nwindows;
#ifdef FEAT_DIFF
if (curwin->w_p_diff)
diff_buf_add(curbuf);
#endif
#ifdef FEAT_SYN_HL
curwin->w_s = &(buf->b_s);
#endif
/* Cursor on first line by default. */
curwin->w_cursor.lnum = 1;
curwin->w_cursor.col = 0;
#ifdef FEAT_VIRTUALEDIT
curwin->w_cursor.coladd = 0;
#endif
curwin->w_set_curswant = TRUE;
#ifdef FEAT_AUTOCMD
curwin->w_topline_was_set = FALSE;
#endif
/* mark cursor position as being invalid */
curwin->w_valid = 0;
/* Make sure the buffer is loaded. */
if (curbuf->b_ml.ml_mfp == NULL) /* need to load the file */
{
#ifdef FEAT_AUTOCMD
/* If there is no filetype, allow for detecting one. Esp. useful for
* ":ball" used in a autocommand. If there already is a filetype we
* might prefer to keep it. */
if (*curbuf->b_p_ft == NUL)
did_filetype = FALSE;
#endif
open_buffer(FALSE, NULL, 0);
}
else
{
if (!msg_silent)
need_fileinfo = TRUE; /* display file info after redraw */
(void)buf_check_timestamp(curbuf, FALSE); /* check if file changed */
#ifdef FEAT_AUTOCMD
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);
#endif
}
/* 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 */
#ifdef FEAT_TITLE
maketitle();
#endif
#ifdef FEAT_AUTOCMD
/* when autocmds didn't change it */
if (curwin->w_topline == 1 && !curwin->w_topline_was_set)
#endif
scroll_cursor_halfway(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)did_set_spelllang(curwin);
#endif
redraw_later(NOT_VALID);
}
#if defined(FEAT_AUTOCHDIR) || defined(PROTO)
/*
* Change to the directory of the current buffer.
*/
void
do_autochdir()
{
if (curbuf->b_ffname != NULL && vim_chdirfile(curbuf->b_ffname) == OK)
shorten_fnames(TRUE);
}
#endif
/*
* functions for dealing with the buffer list
*/
/*
* 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.
* This is the ONLY way to create a new buffer.
*/
static int top_file_num = 1; /* highest file number */
buf_T *
buflist_new(ffname, sfname, lnum, flags)
char_u *ffname; /* full path of fname or relative */
char_u *sfname; /* short fname or NULL */
linenr_T lnum; /* preferred cursor line */
int flags; /* BLN_ defines */
{
buf_T *buf;
#ifdef UNIX
struct stat st;
#endif
fname_expand(curbuf, &ffname, &sfname); /* will allocate ffname */
/*
* If 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) && (buf =
#ifdef UNIX
buflist_findname_stat(ffname, &st)
#else
buflist_findname(ffname)
#endif
) != NULL)
{
vim_free(ffname);
if (lnum != 0)
buflist_setfpos(buf, curwin, lnum, (colnr_T)0, FALSE);
/* 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)
{
buf->b_p_bl = TRUE;
#ifdef FEAT_AUTOCMD
if (!(flags & BLN_DUMMY))
apply_autocmds(EVENT_BUFADD, NULL, NULL, FALSE, buf);
#endif
}
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 != NULL
&& curbuf->b_ffname == NULL
&& curbuf->b_nwindows <= 1
&& (curbuf->b_ml.ml_mfp == NULL || bufempty()))
{
buf = curbuf;
#ifdef FEAT_AUTOCMD
/* It's like this buffer is deleted. Watch out for autocommands that
* change curbuf! If that happens, allocate a new buffer anyway. */
if (curbuf->b_p_bl)
apply_autocmds(EVENT_BUFDELETE, NULL, NULL, FALSE, curbuf);
if (buf == curbuf)
apply_autocmds(EVENT_BUFWIPEOUT, NULL, NULL, FALSE, curbuf);
# ifdef FEAT_EVAL
if (aborting()) /* autocmds may abort script processing */
return NULL;
# endif
#endif
#ifdef FEAT_QUICKFIX
# ifdef FEAT_AUTOCMD
if (buf == curbuf)
# endif
{
/* Make sure 'bufhidden' and 'buftype' are empty */
clear_string_option(&buf->b_p_bh);
clear_string_option(&buf->b_p_bt);
}
#endif
}
if (buf != curbuf || curbuf == NULL)
{
buf = (buf_T *)alloc_clear((unsigned)sizeof(buf_T));
if (buf == NULL)
{
vim_free(ffname);
return NULL;
}
}
if (ffname != NULL)
{
buf->b_ffname = ffname;
buf->b_sfname = vim_strsave(sfname);
}
clear_wininfo(buf);
buf->b_wininfo = (wininfo_T *)alloc_clear((unsigned)sizeof(wininfo_T));
if ((ffname != NULL && (buf->b_ffname == NULL || buf->b_sfname == NULL))
|| buf->b_wininfo == NULL)
{
vim_free(buf->b_ffname);
buf->b_ffname = NULL;
vim_free(buf->b_sfname);
buf->b_sfname = NULL;
if (buf != curbuf)
free_buffer(buf);
return NULL;
}
if (buf == curbuf)
{
/* free all things allocated for this buffer */
buf_freeall(buf, 0);
if (buf != curbuf) /* autocommands deleted the buffer! */
return NULL;
#if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
if (aborting()) /* autocmds may abort script processing */
return NULL;
#endif
/* buf->b_nwindows = 0; why was this here? */
free_buffer_stuff(buf, FALSE); /* delete local variables et al. */
#ifdef FEAT_KEYMAP
/* need to reload lmaps and set b:keymap_name */
curbuf->b_kmap_state |= KEYMAP_INIT;
#endif
}
else
{
/*
* put 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;
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)
{
out_flush();
ui_delay(3000L, TRUE); /* make sure it is noticed */
}
top_file_num = 1;
}
/*
* 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_EVAL
/* init b: variables */
init_var_dict(&buf->b_vars, &buf->b_bufvar, VAR_SCOPE);
#endif
#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' */
#ifdef FEAT_AUTOCMD
if (!(flags & BLN_DUMMY))
{
apply_autocmds(EVENT_BUFNEW, NULL, NULL, FALSE, buf);
if (flags & BLN_LISTED)
apply_autocmds(EVENT_BUFADD, NULL, NULL, FALSE, buf);
# ifdef FEAT_EVAL
if (aborting()) /* autocmds may abort script processing */
return NULL;
# endif
}
#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, free_p_ff)
buf_T *buf;
int free_p_ff;
{
if (free_p_ff)
{
#ifdef FEAT_MBYTE
clear_string_option(&buf->b_p_fenc);
#endif
clear_string_option(&buf->b_p_ff);
#ifdef FEAT_QUICKFIX
clear_string_option(&buf->b_p_bh);
clear_string_option(&buf->b_p_bt);
#endif
}
#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_CINDENT) && 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
#if defined(FEAT_EVAL)
clear_string_option(&buf->b_p_fex);
#endif
#ifdef FEAT_CRYPT
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_KEYMAP
clear_string_option(&buf->b_p_keymap);
ga_clear(&buf->b_kmap_ga);
#endif
#ifdef FEAT_COMMENTS
clear_string_option(&buf->b_p_com);
#endif
#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);
#endif
#ifdef FEAT_SPELL
clear_string_option(&buf->b_s.b_p_spc);
clear_string_option(&buf->b_s.b_p_spf);
vim_free(buf->b_s.b_cap_prog);
buf->b_s.b_cap_prog = NULL;
clear_string_option(&buf->b_s.b_p_spl);
#endif
#ifdef FEAT_SEARCHPATH
clear_string_option(&buf->b_p_sua);
#endif
#ifdef FEAT_AUTOCMD
clear_string_option(&buf->b_p_ft);
#endif
#ifdef FEAT_CINDENT
clear_string_option(&buf->b_p_cink);
clear_string_option(&buf->b_p_cino);
#endif
#if defined(FEAT_CINDENT) || defined(FEAT_SMARTINDENT)
clear_string_option(&buf->b_p_cinw);
#endif
#ifdef FEAT_INS_EXPAND
clear_string_option(&buf->b_p_cpt);
#endif
#ifdef FEAT_COMPL_FUNC
clear_string_option(&buf->b_p_cfu);
clear_string_option(&buf->b_p_ofu);
#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);
#ifdef FEAT_INS_EXPAND
clear_string_option(&buf->b_p_dict);
clear_string_option(&buf->b_p_tsr);
#endif
#ifdef FEAT_TEXTOBJ
clear_string_option(&buf->b_p_qe);
#endif
buf->b_p_ar = -1;
}
/*
* 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(n, lnum, options, forceit)
int n;
linenr_T lnum;
int options;
int forceit;
{
buf_T *buf;
#ifdef FEAT_WINDOWS
win_T *wp = NULL;
#endif
pos_T *fpos;
colnr_T col;
buf = buflist_findnr(n);
if (buf == NULL)
{
if ((options & GETF_ALT) && n == 0)
EMSG(_(e_noalt));
else
EMSGN(_("E92: Buffer %ld not found"), n);
return FAIL;
}
/* if alternate file is the current buffer, nothing to do */
if (buf == curbuf)
return OK;
if (text_locked())
{
text_locked_msg();
return FAIL;
}
#ifdef FEAT_AUTOCMD
if (curbuf_locked())
return FAIL;
#endif
/* 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;
#ifdef FEAT_WINDOWS
if (options & GETF_SWITCH)
{
/* If 'switchbuf' contains "useopen": jump to first window containing
* "buf" if one exists */
if (swb_flags & SWB_USEOPEN)
wp = buf_jump_open_win(buf);
/* If 'switchbuf' contians "usetab": jump to first window in any tab
* page containing "buf" if one exists */
if (wp == NULL && (swb_flags & SWB_USETAB))
wp = buf_jump_open_tab(buf);
/* If 'switchbuf' contains "split" or "newtab" and the current buffer
* isn't empty: open new window */
if (wp == NULL && (swb_flags & (SWB_SPLIT | SWB_NEWTAB)) && !bufempty())
{
if (swb_flags & SWB_NEWTAB) /* Open in a new tab */
tabpage_new();
else if (win_split(0, 0) == FAIL) /* Open in a new window */
return FAIL;
RESET_BINDING(curwin);
}
}
#endif
++RedrawingDisabled;
if (getfile(buf->b_fnum, NULL, NULL, (options & GETF_SETMARK),
lnum, forceit) <= 0)
{
--RedrawingDisabled;
/* 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();
#ifdef FEAT_VIRTUALEDIT
curwin->w_cursor.coladd = 0;
#endif
curwin->w_set_curswant = TRUE;
}
return OK;
}
--RedrawingDisabled;
return FAIL;
}
/*
* go to the last know line number for the current buffer
*/
void
buflist_getfpos()
{
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();
#ifdef FEAT_VIRTUALEDIT
curwin->w_cursor.coladd = 0;
#endif
curwin->w_set_curswant = TRUE;
}
}
#if defined(FEAT_QUICKFIX) || defined(FEAT_EVAL) || defined(PROTO)
/*
* 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(fname)
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;
}
#endif
/*
* 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(ffname)
char_u *ffname;
{
#ifdef UNIX
struct stat 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(ffname, stp)
char_u *ffname;
struct stat *stp;
{
#endif
buf_T *buf;
for (buf = firstbuf; buf != NULL; buf = buf->b_next)
if ((buf->b_flags & BF_DUMMY) == 0 && !otherfile_buf(buf, ffname
#ifdef UNIX
, stp
#endif
))
return buf;
return NULL;
}
#if defined(FEAT_LISTCMDS) || defined(FEAT_EVAL) || defined(FEAT_PERL) || defined(PROTO)
/*
* Find file in buffer list by a regexp pattern.
* Return fnum of the found buffer.
* Return < 0 for error.
*/
int
buflist_findpat(pattern, pattern_end, unlisted, diffmode)
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 */
{
buf_T *buf;
regprog_T *prog;
int match = -1;
int find_listed;
char_u *pat;
char_u *patend;
int attempt;
char_u *p;
int toggledollar;
if (pattern_end == pattern + 1 && (*pattern == '%' || *pattern == '#'))
{
if (*pattern == '%')
match = curbuf->b_fnum;
else
match = curwin->w_alt_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)
{
/* may add '^' and '$' */
if (toggledollar)
*patend = (attempt < 2) ? NUL : '$'; /* add/remove '$' */
p = pat;
if (*p == '^' && !(attempt & 1)) /* add/remove '^' */
++p;
prog = vim_regcomp(p, p_magic ? RE_MAGIC : 0);
if (prog == NULL)
{
vim_free(pat);
return -1;
}
for (buf = firstbuf; buf != NULL; buf = buf->b_next)
if (buf->b_p_bl == find_listed
#ifdef FEAT_DIFF
&& (!diffmode || diff_mode_buf(buf))
#endif
&& buflist_match(prog, buf) != NULL)
{
if (match >= 0) /* already found a match */
{
match = -2;
break;
}
match = buf->b_fnum; /* remember first match */
}
vim_free(prog);
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)
EMSG2(_("E93: More than one match for %s"), pattern);
else if (match < 0)
EMSG2(_("E94: No matching buffer for %s"), pattern);
return match;
}
#endif
#if defined(FEAT_CMDL_COMPL) || defined(PROTO)
/*
* Find all buffer names that match.
* For command line expansion of ":buf" and ":sbuf".
* Return OK if matches found, FAIL otherwise.
*/
int
ExpandBufnames(pat, num_file, file, options)
char_u *pat;
int *num_file;
char_u ***file;
int options;
{
int count = 0;
buf_T *buf;
int round;
char_u *p;
int attempt;
regprog_T *prog;
char_u *patc;
*num_file = 0; /* return values in case of FAIL */
*file = NULL;
/* Make a copy of "pat" and change "^" to "\(^\|[\/]\)". */
if (*pat == '^')
{
patc = alloc((unsigned)STRLEN(pat) + 11);
if (patc == NULL)
return FAIL;
STRCPY(patc, "\\(^\\|[\\/]\\)");
STRCPY(patc + 11, pat + 1);
}
else
patc = pat;
/*
* attempt == 0: try match with '\<', match at start of word
* attempt == 1: try match without '\<', match anywhere
*/
for (attempt = 0; attempt <= 1; ++attempt)
{
if (attempt > 0 && patc == pat)
break; /* there was no anchor, no need to try again */
prog = vim_regcomp(patc + attempt * 11, RE_MAGIC);
if (prog == NULL)
{
if (patc != pat)
vim_free(patc);
return FAIL;
}
/*
* round == 1: Count the matches.
* round == 2: Build the array to keep the matches.
*/
for (round = 1; round <= 2; ++round)
{
count = 0;
for (buf = firstbuf; buf != NULL; buf = buf->b_next)
{
if (!buf->b_p_bl) /* skip unlisted buffers */
continue;
p = buflist_match(prog, buf);
if (p != NULL)
{
if (round == 1)
++count;
else
{
if (options & WILD_HOME_REPLACE)
p = home_replace_save(buf, p);
else
p = vim_strsave(p);
(*file)[count++] = p;
}
}
}
if (count == 0) /* no match found, break here */
break;
if (round == 1)
{
*file = (char_u **)alloc((unsigned)(count * sizeof(char_u *)));
if (*file == NULL)
{
vim_free(prog);
if (patc != pat)
vim_free(patc);
return FAIL;
}
}
}
vim_free(prog);
if (count) /* match(es) found, break here */
break;
}
if (patc != pat)
vim_free(patc);
*num_file = count;
return (count == 0 ? FAIL : OK);
}
#endif /* FEAT_CMDL_COMPL */
#ifdef HAVE_BUFLIST_MATCH
/*
* Check for a match on the file name for buffer "buf" with regprog "prog".
*/
static char_u *
buflist_match(prog, buf)
regprog_T *prog;
buf_T *buf;
{
char_u *match;
/* First try the short file name, then the long file name. */
match = fname_match(prog, buf->b_sfname);
if (match == NULL)
match = fname_match(prog, buf->b_ffname);
return match;
}
/*
* Try matching the regexp in "prog" with file name "name".
* Return "name" when there is a match, NULL when not.
*/
static char_u *
fname_match(prog, name)
regprog_T *prog;
char_u *name;
{
char_u *match = NULL;
char_u *p;
regmatch_T regmatch;
if (name != NULL)
{
regmatch.regprog = prog;
#ifdef CASE_INSENSITIVE_FILENAME
regmatch.rm_ic = TRUE; /* Always ignore case */
#else
regmatch.rm_ic = FALSE; /* Never ignore case */
#endif
if (vim_regexec(&regmatch, name, (colnr_T)0))
match = name;
else
{
/* Replace $(HOME) with '~' and try matching again. */
p = home_replace_save(NULL, name);
if (p != NULL && vim_regexec(&regmatch, p, (colnr_T)0))
match = name;
vim_free(p);
}
}
return match;
}
#endif
/*
* find file in buffer list by number
*/
buf_T *
buflist_findnr(nr)
int nr;
{
buf_T *buf;
if (nr == 0)
nr = curwin->w_alt_fnum;
for (buf = firstbuf; buf != NULL; buf = buf->b_next)
if (buf->b_fnum == nr)
return (buf);
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(n, fullname, helptail)
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.
*/
static void
buflist_setfpos(buf, win, lnum, col, copy_options)
buf_T *buf;
win_T *win;
linenr_T lnum;
colnr_T col;
int copy_options;
{
wininfo_T *wip;
for (wip = buf->b_wininfo; wip != NULL; wip = wip->wi_next)
if (wip->wi_win == win)
break;
if (wip == NULL)
{
/* allocate a new entry */
wip = (wininfo_T *)alloc_clear((unsigned)sizeof(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 (copy_options)
{
/* 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;
return;
}
#ifdef FEAT_DIFF
static int wininfo_other_tab_diff __ARGS((wininfo_T *wip));
/*
* 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(wip)
wininfo_T *wip;
{
win_T *wp;
if (wip->wi_opt.wo_diff)
{
for (wp = firstwin; wp != NULL; wp = wp->w_next)
/* 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;
}
return FALSE;
}
#endif
/*
* Find info for the current window in buffer "buf".
* If not found, return the info for the most recently used window.
* 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, skip_diff_buffer)
buf_T *buf;
int skip_diff_buffer UNUSED;
{
wininfo_T *wip;
for (wip = buf->b_wininfo; wip != NULL; wip = wip->wi_next)
if (wip->wi_win == curwin
#ifdef FEAT_DIFF
&& (!skip_diff_buffer || !wininfo_other_tab_diff(wip))
#endif
)
break;
/* If no wininfo for curwin, use the first in the list (that doesn't have
* 'diff' set and is in another tab page). */
if (wip == NULL)
{
#ifdef FEAT_DIFF
if (skip_diff_buffer)
{
for (wip = buf->b_wininfo; wip != NULL; wip = wip->wi_next)
if (!wininfo_other_tab_diff(wip))
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)
buf_T *buf;
{
wininfo_T *wip;
clear_winopt(&curwin->w_onebuf_opt);
#ifdef FEAT_FOLDING
clearFolding(curwin);
#endif
wip = find_wininfo(buf, TRUE);
if (wip != NULL && wip->wi_optset)
{
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);
#ifdef FEAT_FOLDING
/* Set 'foldlevel' to 'foldlevelstart' if it's not negative. */
if (p_fdls >= 0)
curwin->w_p_fdl = p_fdls;
#endif
#ifdef FEAT_SYN_HL
check_colorcolumn(curwin);
#endif
}
/*
* 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)
buf_T *buf;
{
wininfo_T *wip;
static pos_T no_position = INIT_POS_T(1, 0, 0);
wip = find_wininfo(buf, 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)
buf_T *buf;
{
return buflist_findfpos(buf)->lnum;
}
#if defined(FEAT_LISTCMDS) || defined(PROTO)
/*
* List all know file names (for :files and :buffers command).
*/
void
buflist_list(eap)
exarg_T *eap;
{
buf_T *buf;
int len;
int i;
for (buf = firstbuf; buf != NULL && !got_int; buf = buf->b_next)
{
/* skip unlisted buffers, unless ! was used */
if (!buf->b_p_bl && !eap->forceit)
continue;
msg_putchar('\n');
if (buf_spname(buf) != NULL)
STRCPY(NameBuff, buf_spname(buf));
else
home_replace(buf, buf->b_fname, NameBuff, MAXPATHL, TRUE);
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'),
!buf->b_p_ma ? '-' : (buf->b_p_ro ? '=' : ' '),
(buf->b_flags & BF_READERR) ? 'x'
: (bufIsChanged(buf) ? '+' : ' '),
NameBuff);
/* 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);
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();
}
}
#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(fnum, fname, lnum)
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', short file name to 'sfname'.
* 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, ffname, sfname, message)
buf_T *buf;
char_u *ffname, *sfname;
int message; /* give message when buffer already exists */
{
buf_T *obuf = NULL;
#ifdef UNIX
struct stat st;
#endif
if (ffname == NULL || *ffname == NUL)
{
/* Removing the name. */
vim_free(buf->b_ffname);
vim_free(buf->b_sfname);
buf->b_ffname = NULL;
buf->b_sfname = NULL;
#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)
{
if (obuf->b_ml.ml_mfp != NULL) /* it's loaded, fail */
{
if (message)
EMSG(_("E95: Buffer with this name already exists"));
vim_free(ffname);
return FAIL;
}
/* delete from the list */
close_buffer(NULL, obuf, DOBUF_WIPE, FALSE);
}
sfname = vim_strsave(sfname);
if (ffname == NULL || sfname == NULL)
{
vim_free(sfname);
vim_free(ffname);
return FAIL;
}
#ifdef USE_FNAME_CASE
# ifdef USE_LONG_FNAME
if (USE_LONG_FNAME)
# endif
fname_case(sfname, 0); /* set correct case for short file name */
#endif
vim_free(buf->b_ffname);
vim_free(buf->b_sfname);
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
#ifndef SHORT_FNAME
buf->b_shortname = FALSE;
#endif
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(fnum, name)
int fnum;
char_u *name;
{
buf_T *buf;
buf = buflist_findnr(fnum);
if (buf != NULL)
{
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)
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);
if (curwin->w_buffer == buf)
check_arg_idx(curwin); /* check file name for arg list */
#ifdef FEAT_TITLE
maketitle(); /* set window title */
#endif
#ifdef FEAT_WINDOWS
status_redraw_all(); /* status lines need to be redrawn */
#endif
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(ffname, sfname, lnum)
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.keepalt)
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(errmsg)
int errmsg; /* give error message */
{
char_u *fname;
linenr_T dummy;
if (buflist_name_nr(0, &fname, &dummy) == FAIL)
{
if (errmsg)
EMSG(_(e_noalt));
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(fname, flags)
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()
{
buf_T *bp;
for (bp = firstbuf; bp != NULL; bp = bp->b_next)
{
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)
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(ffname)
char_u *ffname;
{
return otherfile_buf(curbuf, ffname
#ifdef UNIX
, NULL
#endif
);
}
static int
otherfile_buf(buf, ffname
#ifdef UNIX
, stp
#endif
)
buf_T *buf;
char_u *ffname;
#ifdef UNIX
struct stat *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
{
struct stat st;
/* If no struct stat 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)
buf_T *buf;
{
struct stat 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, stp)
buf_T *buf;
struct stat *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(fullname, shorthelp, dont_truncate)
int fullname; /* when non-zero print full path */
int shorthelp;
int dont_truncate;
{
char_u *name;
int n;
char_u *p;
char_u *buffer;
size_t len;
buffer = alloc(IOSIZE);
if (buffer == NULL)
return;
if (fullname > 1) /* 2 CTRL-G: include buffer number */
{
vim_snprintf((char *)buffer, IOSIZE, "buf %d: ", curbuf->b_fnum);
p = buffer + STRLEN(buffer);
}
else
p = buffer;
*p++ = '"';
if (buf_spname(curbuf) != NULL)
STRCPY(p, buf_spname(curbuf));
else
{
if (!fullname && curbuf->b_fname != NULL)
name = curbuf->b_fname;
else
name = curbuf->b_ffname;
home_replace(shorthelp ? curbuf : NULL, name, p,
(int)(IOSIZE - (p - buffer)), TRUE);
}
vim_snprintf_add((char *)buffer, IOSIZE, "\"%s%s%s%s%s%s",
curbufIsChanged() ? (shortmess(SHM_MOD)
? " [+]" : _(" [Modified]")) : " ",
(curbuf->b_flags & BF_NOTEDITED)
#ifdef FEAT_QUICKFIX
&& !bt_dontwrite(curbuf)
#endif
? _("[Not edited]") : "",
(curbuf->b_flags & BF_NEW)
#ifdef FEAT_QUICKFIX
&& !bt_dontwrite(curbuf)
#endif
? _("[New file]") : "",
(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((char *)buffer, IOSIZE, "%s", _(no_lines_msg));
}
#ifdef FEAT_CMDL_INFO
else if (p_ru)
{
/* Current line and column are already on the screen -- webb */
if (curbuf->b_ml.ml_line_count == 1)
vim_snprintf_add((char *)buffer, IOSIZE, _("1 line --%d%%--"), n);
else
vim_snprintf_add((char *)buffer, IOSIZE, _("%ld lines --%d%%--"),
(long)curbuf->b_ml.ml_line_count, n);
}
#endif
else
{
vim_snprintf_add((char *)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(buffer + len, IOSIZE - len,
(int)curwin->w_cursor.col + 1, (int)curwin->w_virtcol + 1);
}
(void)append_arg_number(curwin, 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(p, 0);
}
vim_free(buffer);
}
void
col_print(buf, buflen, col, vcol)
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);
}
#if defined(FEAT_TITLE) || defined(PROTO)
/*
* put file name in title bar of window and in icon title
*/
static char_u *lasttitle = NULL;
static char_u *lasticon = NULL;
void
maketitle()
{
char_u *p;
char_u *t_str = NULL;
char_u *i_name;
char_u *i_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;
}
#ifdef FEAT_GUI_MACVIM
gui_macvim_update_modified_flag();
#endif
need_maketitle = FALSE;
if (!p_title && !p_icon && lasttitle == NULL && lasticon == NULL)
return;
if (p_title)
{
if (p_titlelen > 0)
{
maxlen = p_titlelen * Columns / 100;
if (maxlen < 10)
maxlen = 10;
}
t_str = buf;
if (*p_titlestring != NUL)
{
#ifdef FEAT_STL_OPT
if (stl_syntax & STL_IN_TITLE)
{
int use_sandbox = FALSE;
int save_called_emsg = called_emsg;
# ifdef FEAT_EVAL
use_sandbox = was_set_insecurely((char_u *)"titlestring", 0);
# endif
called_emsg = FALSE;
build_stl_str_hl(curwin, t_str, sizeof(buf),
p_titlestring, use_sandbox,
0, maxlen, NULL, NULL);
if (called_emsg)
set_string_option_direct((char_u *)"titlestring", -1,
(char_u *)"", OPT_FREE, SID_ERROR);
called_emsg |= save_called_emsg;
}
else
#endif
t_str = p_titlestring;
}
else
{
/* format: "fname + (path) (1 of 2) - VIM" */
if (curbuf->b_fname == NULL)
vim_strncpy(buf, (char_u *)_("[No Name]"), IOSIZE - 100);
else
{
p = transstr(gettail(curbuf->b_fname));
vim_strncpy(buf, p, IOSIZE - 100);
vim_free(p);
}
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)
{
/* Get path of file, replace home dir with ~ */
off = (int)STRLEN(buf);
buf[off++] = ' ';
buf[off++] = '(';
home_replace(curbuf, curbuf->b_ffname,
buf + off, IOSIZE - off, TRUE);
#ifdef BACKSLASH_IN_FILENAME
/* avoid "c:/name" to be reduced to "c" */
if (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)(IOSIZE - off - 1));
else
*p = NUL;
/* translate unprintable chars */
p = transstr(buf + off);
vim_strncpy(buf + off, p, (size_t)(IOSIZE - off - 1));
vim_free(p);
STRCAT(buf, ")");
}
#ifndef FEAT_GUI_MACVIM
append_arg_number(curwin, buf, IOSIZE, FALSE);
#endif
#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 = ti_change(t_str, &lasttitle);
if (p_icon)
{
i_str = buf;
if (*p_iconstring != NUL)
{
#ifdef FEAT_STL_OPT
if (stl_syntax & STL_IN_ICON)
{
int use_sandbox = FALSE;
int save_called_emsg = called_emsg;
# ifdef FEAT_EVAL
use_sandbox = was_set_insecurely((char_u *)"iconstring", 0);
# endif
called_emsg = FALSE;
build_stl_str_hl(curwin, i_str, sizeof(buf),
p_iconstring, use_sandbox,
0, 0, NULL, NULL);
if (called_emsg)
set_string_option_direct((char_u *)"iconstring", -1,
(char_u *)"", OPT_FREE, SID_ERROR);
called_emsg |= save_called_emsg;
}
else
#endif
i_str = p_iconstring;
}
else
{
if (buf_spname(curbuf) != NULL)
i_name = (char_u *)buf_spname(curbuf);
else /* use file name only in icon */
i_name = gettail(curbuf->b_ffname);
*i_str = NUL;
/* Truncate name at 100 bytes. */
len = (int)STRLEN(i_name);
if (len > 100)
{
len -= 100;
#ifdef FEAT_MBYTE
if (has_mbyte)
len += (*mb_tail_off)(i_name, i_name + len) + 1;
#endif
i_name += len;
}
STRCPY(i_str, i_name);
trans_characters(i_str, IOSIZE);
}
}
mustset |= ti_change(i_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 when "*last" changed.
*/
static int
ti_change(str, last)
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;
else
*last = vim_strsave(str);
return TRUE;
}
return FALSE;
}
/*
* Put current window title back (used after calling a shell)
*/
void
resettitle()
{
mch_settitle(lasttitle, lasticon);
}
# if defined(EXITFREE) || defined(PROTO)
void
free_titles()
{
vim_free(lasttitle);
vim_free(lasticon);
}
# endif
#endif /* FEAT_TITLE */
#if defined(FEAT_STL_OPT) || defined(FEAT_GUI_TABLINE) || defined(PROTO)
/*
* 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, %= => middle 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(wp, out, outlen, fmt, use_sandbox, fillchar,
maxwidth, hltab, tabtab)
win_T *wp;
char_u *out; /* buffer to write into != NameBuff */
size_t outlen; /* length of out[] */
char_u *fmt;
int use_sandbox UNUSED; /* "fmt" was set insecurely, use sandbox */
int fillchar;
int maxwidth;
struct stl_hlrec *hltab; /* return: HL attributes (can be NULL) */
struct stl_hlrec *tabtab; /* return: tab page nrs (can be NULL) */
{
char_u *p;
char_u *s;
char_u *t;
char_u *linecont;
#ifdef FEAT_EVAL
win_T *o_curwin;
buf_T *o_curbuf;
#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 groupitem[STL_MAX_ITEM];
int groupdepth;
struct stl_item
{
char_u *start;
int minwid;
int maxwid;
enum
{
Normal,
Empty,
Group,
Middle,
Highlight,
TabPage,
Trunc
} type;
} item[STL_MAX_ITEM];
int minwid;
int maxwid;
int zeropad;
char_u base;
char_u opt;
#define TMPLEN 70
char_u tmp[TMPLEN];
char_u *usefmt = fmt;
struct stl_hlrec *sp;
#ifdef FEAT_EVAL
/*
* 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] == '!')
{
usefmt = eval_to_string_safe(fmt + 2, NULL, use_sandbox);
if (usefmt == NULL)
usefmt = fmt;
}
#endif
if (fillchar == 0)
fillchar = ' ';
#ifdef FEAT_MBYTE
/* Can't handle a multi-byte fill character yet. */
else if (mb_char2len(fillchar) > 1)
fillchar = '-';
#endif
/*
* Get line & check if empty (cursorpos will show "0-1").
* If inversion is possible we use it. Else '=' characters are used.
*/
linecont = ml_get_buf(wp->w_buffer, wp->w_cursor.lnum, FALSE);
empty_line = (*linecont == NUL);
groupdepth = 0;
p = out;
curitem = 0;
prevchar_isflag = TRUE;
prevchar_isitem = FALSE;
for (s = usefmt; *s; )
{
if (curitem == STL_MAX_ITEM)
{
/* There are too many items. Add the error code to the statusline
* to give the user a hint about what went wrong. */
if (p + 6 < out + outlen)
{
mch_memmove(p, " E541", (size_t)5);
p += 5;
}
break;
}
if (*s != NUL && *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;
}
if (*s == STL_MIDDLEMARK)
{
s++;
if (groupdepth > 0)
continue;
item[curitem].type = Middle;
item[curitem++].start = p;
continue;
}
if (*s == STL_TRUNCMARK)
{
s++;
item[curitem].type = Trunc;
item[curitem++].start = p;
continue;
}
if (*s == ')')
{
s++;
if (groupdepth < 1)
continue;
groupdepth--;
t = item[groupitem[groupdepth]].start;
*p = NUL;
l = vim_strsize(t);
if (curitem > groupitem[groupdepth] + 1
&& item[groupitem[groupdepth]].minwid == 0)
{
/* remove group if all items are empty */
for (n = groupitem[groupdepth] + 1; n < curitem; n++)
if (item[n].type == Normal)
break;
if (n == curitem)
{
p = t;
l = 0;
}
}
if (l > item[groupitem[groupdepth]].maxwid)
{
/* truncate, remove n bytes of text at the start */
#ifdef FEAT_MBYTE
if (has_mbyte)
{
/* Find the first character that should be included. */
n = 0;
while (l >= item[groupitem[groupdepth]].maxwid)
{
l -= ptr2cells(t + n);
n += (*mb_ptr2len)(t + n);
}
}
else
#endif
n = (long)(p - t) - item[groupitem[groupdepth]].maxwid + 1;
*t = '<';
mch_memmove(t + 1, t + n, (size_t)(p - (t + n)));
p = p - n + 1;
#ifdef FEAT_MBYTE
/* Fill up space left over by half a double-wide char. */
while (++l < item[groupitem[groupdepth]].minwid)
*p++ = fillchar;
#endif
/* correct the start of the items for the truncation */
for (l = groupitem[groupdepth] + 1; l < curitem; l++)
{
item[l].start -= n;
if (item[l].start < t)
item[l].start = t;
}
}
else if (abs(item[groupitem[groupdepth]].minwid) > l)
{
/* fill */
n = item[groupitem[groupdepth]].minwid;
if (n < 0)
{
/* fill by appending characters */
n = 0 - n;
while (l++ < n && p + 1 < out + outlen)
*p++ = fillchar;
}
else
{
/* fill by inserting characters */
mch_memmove(t + n - l, t, (size_t)(p - t));
l = n - l;
if (p + l >= out + outlen)
l = (long)((out + outlen) - p - 1);
p += l;
for (n = groupitem[groupdepth] + 1; n < curitem; n++)
item[n].start += l;
for ( ; l > 0; l--)
*t++ = fillchar;
}
}
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)
{
item[curitem].type = Highlight;
item[curitem].start = p;
item[curitem].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 (item[n].type == TabPage && item[n].minwid >= 0)
{
minwid = item[n].minwid;
break;
}
}
else
/* close nrs are stored as negative values */
minwid = - minwid;
}
item[curitem].type = TabPage;
item[curitem].start = p;
item[curitem].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 == '(')
{
groupitem[groupdepth++] = curitem;
item[curitem].type = Group;
item[curitem].start = p;
item[curitem].minwid = minwid;
item[curitem].maxwid = maxwid;
s++;
curitem++;
continue;
}
if (vim_strchr(STL_ALL, *s) == NULL)
{
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)
STRCPY(NameBuff, buf_spname(wp->w_buffer));
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: /* '{' */
itemisflag = TRUE;
t = p;
while (*s != '}' && *s != NUL && p + 1 < out + outlen)
*p++ = *s++;
if (*s != '}') /* missing '}' or out of space */
break;
s++;
*p = 0;
p = t;
#ifdef FEAT_EVAL
vim_snprintf((char *)tmp, sizeof(tmp), "%d", curbuf->b_fnum);
set_internal_string_var((char_u *)"actual_curbuf", tmp);
o_curbuf = curbuf;
o_curwin = curwin;
curwin = wp;
curbuf = wp->w_buffer;
str = eval_to_string_safe(p, &t, use_sandbox);
curwin = o_curwin;
curbuf = o_curbuf;
do_unlet((char_u *)"g:actual_curbuf", TRUE);
if (str != NULL && *str != 0)
{
if (*skipdigits(str) == NUL)
{
num = atoi((char *)str);
vim_free(str);
str = NULL;
itemisflag = FALSE;
}
}
#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 & INSERT) && empty_line
? 0 : (int)wp->w_cursor.col + 1;
break;
case STL_VIRTCOL:
case STL_VIRTCOL_ALT:
/* In list mode virtcol needs to be recomputed */
virtcol = wp->w_virtcol;
if (wp->w_p_list && lcs_tab1 == NUL)
{
wp->w_p_list = FALSE;
getvcol(wp, &wp->w_cursor, NULL, &virtcol, NULL);
wp->w_p_list = TRUE;
}
++virtcol;
/* Don't display %V if it's the same as %c. */
if (opt == STL_VIRTCOL_ALT
&& (virtcol == (colnr_T)(!(State & INSERT) && 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 = tmp;
get_rel_pos(wp, str, TMPLEN);
break;
case STL_ARGLISTSTAT:
fillable = FALSE;
tmp[0] = 0;
if (append_arg_number(wp, tmp, (int)sizeof(tmp), FALSE))
str = tmp;
break;
case STL_KEYMAP:
fillable = FALSE;
if (get_keymap_str(wp, tmp, TMPLEN))
str = 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';
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 & INSERT) && empty_line ?
0 : (int)wp->w_cursor.col);
#endif
break;
case STL_BYTEVAL_X:
base = 'X';
case STL_BYTEVAL:
if (wp->w_cursor.col > (colnr_T)STRLEN(linecont))
num = 0;
else
{
#ifdef FEAT_MBYTE
num = (*mb_ptr2char)(linecont + wp->w_cursor.col);
#else
num = linecont[wp->w_cursor.col];
#endif
}
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;
#ifdef FEAT_AUTOCMD
case STL_FILETYPE:
if (*wp->w_buffer->b_p_ft != NUL
&& STRLEN(wp->w_buffer->b_p_ft) < TMPLEN - 3)
{
vim_snprintf((char *)tmp, sizeof(tmp), "[%s]",
wp->w_buffer->b_p_ft);
str = 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 *)tmp, sizeof(tmp), ",%s",
wp->w_buffer->b_p_ft);
for (t = tmp; *t != 0; t++)
*t = TOUPPER_LOC(*t);
str = tmp;
}
break;
#endif
#if defined(FEAT_WINDOWS) && 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 == '#')
{
item[curitem].type = Highlight;
item[curitem].start = p;
item[curitem].minwid = -syn_namen2id(t, (int)(s - t));
curitem++;
}
++s;
continue;
}
item[curitem].start = p;
item[curitem].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)
#ifdef FEAT_MBYTE
if (has_mbyte)
{
l -= ptr2cells(t);
t += (*mb_ptr2len)(t);
}
else
#endif
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
*p++ = fillchar;
}
minwid = 0;
}
else
minwid *= -1;
while (*t && p + 1 < out + outlen)
{
*p++ = *t++;
/* Change a space by fillchar, unless fillchar is '-' and a
* digit follows. */
if (fillable && p[-1] == ' '
&& (!VIM_ISDIGIT(*t) || fillchar != '-'))
p[-1] = fillchar;
}
for (; l < minwid && p + 1 < out + outlen; l++)
*p++ = fillchar;
}
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
item[curitem].type = Empty;
if (opt == STL_VIM_EXPR)
vim_free(str);
if (num >= 0 || (!itemisflag && str && *str))
prevchar_isflag = FALSE; /* Item not NULL, but not a flag */
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 (item[l].type == Trunc)
{
/* Truncate at %< item. */
s = item[l].start;
break;
}
if (l == itemcnt)
{
/* No %< item, truncate first item. */
s = item[0].start;
l = 0;
}
}
if (width - vim_strsize(s) >= maxwidth)
{
/* Truncation mark is beyond max length */
#ifdef FEAT_MBYTE
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)
*s++ = fillchar;
}
else
#endif
s = out + maxwidth - 1;
for (l = 0; l < itemcnt; l++)
if (item[l].start > s)
break;
itemcnt = l;
*s++ = '>';
*s = 0;
}
else
{
#ifdef FEAT_MBYTE
if (has_mbyte)
{
n = 0;
while (width >= maxwidth)
{
width -= ptr2cells(s + n);
n += (*mb_ptr2len)(s + n);
}
}
else
#endif
n = width - maxwidth + 1;
p = s + n;
STRMOVE(s + 1, p);
*s = '<';
/* Fill up for half a double-wide character. */
while (++width < maxwidth)
{
s = s + STRLEN(s);
*s++ = fillchar;
*s = NUL;
}
--n; /* count the '<' */
for (; l < itemcnt; l++)
{
if (item[l].start - n >= s)
item[l].start -= n;
else
item[l].start = s;
}