widget_value *
digest_single_submenu (int start, int end, bool top_level_items)
{
widget_value *wv, *prev_wv, *save_wv, *first_wv;
int i;
int submenu_depth = 0;
widget_value **submenu_stack;
bool panes_seen = 0;
struct frame *f = XFRAME (Vmenu_updating_frame);
USE_SAFE_ALLOCA;
SAFE_NALLOCA (submenu_stack, 1, menu_items_used);
wv = make_widget_value ("menu", NULL, true, Qnil);
wv->button_type = BUTTON_TYPE_NONE;
first_wv = wv;
save_wv = 0;
prev_wv = 0;
/* Loop over all panes and items made by the preceding call
to parse_single_submenu and construct a tree of widget_value objects.
Ignore the panes and items used by previous calls to
digest_single_submenu, even though those are also in menu_items. */
i = start;
while (i < end)
{
if (EQ (AREF (menu_items, i), Qnil))
{
submenu_stack[submenu_depth++] = save_wv;
save_wv = prev_wv;
prev_wv = 0;
i++;
}
else if (EQ (AREF (menu_items, i), Qlambda))
{
prev_wv = save_wv;
save_wv = submenu_stack[--submenu_depth];
i++;
}
else if (EQ (AREF (menu_items, i), Qt)
&& submenu_depth != 0)
i += MENU_ITEMS_PANE_LENGTH;
/* Ignore a nil in the item list.
It's meaningful only for dialog boxes. */
else if (EQ (AREF (menu_items, i), Qquote))
i += 1;
else if (EQ (AREF (menu_items, i), Qt))
{
/* Create a new pane. */
Lisp_Object pane_name;
const char *pane_string;
panes_seen = 1;
pane_name = AREF (menu_items, i + MENU_ITEMS_PANE_NAME);
/* TTY menus display menu items via tty_write_glyphs, which
will encode the strings as appropriate. */
if (!FRAME_TERMCAP_P (f))
{
#ifdef HAVE_NTGUI
if (STRINGP (pane_name))
{
if (unicode_append_menu)
/* Encode as UTF-8 for now. */
pane_name = ENCODE_UTF_8 (pane_name);
else if (STRING_MULTIBYTE (pane_name))
pane_name = ENCODE_SYSTEM (pane_name);
ASET (menu_items, i + MENU_ITEMS_PANE_NAME, pane_name);
}
#elif defined (USE_LUCID) && defined (HAVE_XFT)
if (STRINGP (pane_name))
{
pane_name = ENCODE_UTF_8 (pane_name);
ASET (menu_items, i + MENU_ITEMS_PANE_NAME, pane_name);
}
#elif !defined (HAVE_MULTILINGUAL_MENU)
if (STRINGP (pane_name) && STRING_MULTIBYTE (pane_name))
{
pane_name = ENCODE_MENU_STRING (pane_name);
ASET (menu_items, i + MENU_ITEMS_PANE_NAME, pane_name);
}
#endif
}
pane_string = (NILP (pane_name)
? "" : SSDATA (pane_name));
/* If there is just one top-level pane, put all its items directly
under the top-level menu. */
if (menu_items_n_panes == 1)
pane_string = "";
/* If the pane has a meaningful name,
make the pane a top-level menu item
with its items as a submenu beneath it. */
if (strcmp (pane_string, ""))
{
/* Set value to 1 so update_submenu_strings can handle '@'. */
wv = make_widget_value (NULL, (char *) 1, true, Qnil);
if (save_wv)
save_wv->next = wv;
else
first_wv->contents = wv;
wv->lname = pane_name;
wv->button_type = BUTTON_TYPE_NONE;
save_wv = wv;
}
else
save_wv = first_wv;
prev_wv = 0;
i += MENU_ITEMS_PANE_LENGTH;
}
else
{
/* Create a new item within current pane. */
Lisp_Object item_name, enable, descrip, def, type, selected;
Lisp_Object help;
/* All items should be contained in panes. */
if (! panes_seen)
emacs_abort ();
item_name = AREF (menu_items, i + MENU_ITEMS_ITEM_NAME);
enable = AREF (menu_items, i + MENU_ITEMS_ITEM_ENABLE);
descrip = AREF (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY);
def = AREF (menu_items, i + MENU_ITEMS_ITEM_DEFINITION);
type = AREF (menu_items, i + MENU_ITEMS_ITEM_TYPE);
selected = AREF (menu_items, i + MENU_ITEMS_ITEM_SELECTED);
help = AREF (menu_items, i + MENU_ITEMS_ITEM_HELP);
/* TTY menu items and their descriptions will be encoded by
tty_write_glyphs. */
if (!FRAME_TERMCAP_P (f))
{
#ifdef HAVE_NTGUI
if (STRINGP (item_name))
{
if (unicode_append_menu)
item_name = ENCODE_UTF_8 (item_name);
else if (STRING_MULTIBYTE (item_name))
item_name = ENCODE_SYSTEM (item_name);
ASET (menu_items, i + MENU_ITEMS_ITEM_NAME, item_name);
}
if (STRINGP (descrip) && STRING_MULTIBYTE (descrip))
{
descrip = ENCODE_SYSTEM (descrip);
ASET (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY, descrip);
}
#elif USE_LUCID
if (STRINGP (item_name))
{
item_name = ENCODE_UTF_8 (item_name);
ASET (menu_items, i + MENU_ITEMS_ITEM_NAME, item_name);
}
if (STRINGP (descrip))
{
descrip = ENCODE_UTF_8 (descrip);
ASET (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY, descrip);
}
#elif !defined (HAVE_MULTILINGUAL_MENU)
if (STRING_MULTIBYTE (item_name))
{
item_name = ENCODE_MENU_STRING (item_name);
ASET (menu_items, i + MENU_ITEMS_ITEM_NAME, item_name);
}
if (STRINGP (descrip) && STRING_MULTIBYTE (descrip))
{
descrip = ENCODE_MENU_STRING (descrip);
ASET (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY, descrip);
}
#endif
}
wv = make_widget_value (NULL, NULL, !NILP (enable),
STRINGP (help) ? help : Qnil);
if (prev_wv)
prev_wv->next = wv;
else
save_wv->contents = wv;
wv->lname = item_name;
if (!NILP (descrip))
wv->lkey = descrip;
/* The intptr_t cast avoids a warning. There's no problem
as long as pointers have enough bits to hold small integers. */
wv->call_data = (!NILP (def) ? (void *) (intptr_t) i : 0);
if (NILP (type))
wv->button_type = BUTTON_TYPE_NONE;
else if (EQ (type, QCradio))
wv->button_type = BUTTON_TYPE_RADIO;
else if (EQ (type, QCtoggle))
wv->button_type = BUTTON_TYPE_TOGGLE;
else
emacs_abort ();
wv->selected = !NILP (selected);
prev_wv = wv;
i += MENU_ITEMS_ITEM_LENGTH;
}
}
/* If we have just one "menu item"
that was originally a button, return it by itself. */
if (top_level_items && first_wv->contents && first_wv->contents->next == 0)
{
wv = first_wv;
first_wv = first_wv->contents;
xfree (wv);
}
SAFE_FREE ();
return first_wv;
}
Lisp_Object
directory_files_internal (Lisp_Object directory, Lisp_Object full,
Lisp_Object match, Lisp_Object nosort, bool attrs,
Lisp_Object id_format)
{
DIR *d;
int fd;
ptrdiff_t directory_nbytes;
Lisp_Object list, dirfilename, encoded_directory;
struct re_pattern_buffer *bufp = NULL;
bool needsep = 0;
ptrdiff_t count = SPECPDL_INDEX ();
struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5;
struct dirent *dp;
#ifdef WINDOWSNT
Lisp_Object w32_save = Qnil;
#endif
/* Don't let the compiler optimize away all copies of DIRECTORY,
which would break GC; see Bug#16986. Although this is required
only in the common case where GC_MARK_STACK == GC_MAKE_GCPROS_NOOPS,
it shouldn't break anything in the other cases. */
Lisp_Object volatile directory_volatile = directory;
/* Because of file name handlers, these functions might call
Ffuncall, and cause a GC. */
list = encoded_directory = dirfilename = Qnil;
GCPRO5 (match, directory, list, dirfilename, encoded_directory);
dirfilename = Fdirectory_file_name (directory);
if (!NILP (match))
{
CHECK_STRING (match);
/* MATCH might be a flawed regular expression. Rather than
catching and signaling our own errors, we just call
compile_pattern to do the work for us. */
/* Pass 1 for the MULTIBYTE arg
because we do make multibyte strings if the contents warrant. */
# ifdef WINDOWSNT
/* Windows users want case-insensitive wildcards. */
bufp = compile_pattern (match, 0,
BVAR (&buffer_defaults, case_canon_table), 0, 1);
# else /* !WINDOWSNT */
bufp = compile_pattern (match, 0, Qnil, 0, 1);
# endif /* !WINDOWSNT */
}
/* Note: ENCODE_FILE and DECODE_FILE can GC because they can run
run_pre_post_conversion_on_str which calls Lisp directly and
indirectly. */
if (STRING_MULTIBYTE (dirfilename))
dirfilename = ENCODE_FILE (dirfilename);
encoded_directory = (STRING_MULTIBYTE (directory)
? ENCODE_FILE (directory) : directory);
/* Now *bufp is the compiled form of MATCH; don't call anything
which might compile a new regexp until we're done with the loop! */
d = open_directory (SSDATA (dirfilename), &fd);
if (d == NULL)
report_file_error ("Opening directory", directory);
/* Unfortunately, we can now invoke expand-file-name and
file-attributes on filenames, both of which can throw, so we must
do a proper unwind-protect. */
record_unwind_protect_ptr (directory_files_internal_unwind, d);
#ifdef WINDOWSNT
if (attrs)
{
extern int is_slow_fs (const char *);
/* Do this only once to avoid doing it (in w32.c:stat) for each
file in the directory, when we call Ffile_attributes below. */
record_unwind_protect (directory_files_internal_w32_unwind,
Vw32_get_true_file_attributes);
w32_save = Vw32_get_true_file_attributes;
if (EQ (Vw32_get_true_file_attributes, Qlocal))
{
/* w32.c:stat will notice these bindings and avoid calling
GetDriveType for each file. */
if (is_slow_fs (SDATA (dirfilename)))
Vw32_get_true_file_attributes = Qnil;
else
Vw32_get_true_file_attributes = Qt;
}
}
#endif
directory_nbytes = SBYTES (directory);
re_match_object = Qt;
/* Decide whether we need to add a directory separator. */
if (directory_nbytes == 0
|| !IS_ANY_SEP (SREF (directory, directory_nbytes - 1)))
needsep = 1;
/* Loop reading blocks until EOF or error. */
for (;;)
{
ptrdiff_t len;
bool wanted = 0;
Lisp_Object name, finalname;
struct gcpro gcpro1, gcpro2;
errno = 0;
dp = readdir (d);
if (!dp)
{
if (errno == EAGAIN || errno == EINTR)
{
QUIT;
continue;
}
break;
}
len = dirent_namelen (dp);
name = finalname = make_unibyte_string (dp->d_name, len);
GCPRO2 (finalname, name);
/* Note: DECODE_FILE can GC; it should protect its argument,
though. */
name = DECODE_FILE (name);
len = SBYTES (name);
/* Now that we have unwind_protect in place, we might as well
allow matching to be interrupted. */
immediate_quit = 1;
QUIT;
if (NILP (match)
|| re_search (bufp, SSDATA (name), len, 0, len, 0) >= 0)
wanted = 1;
immediate_quit = 0;
if (wanted)
{
if (!NILP (full))
{
Lisp_Object fullname;
ptrdiff_t nbytes = len + directory_nbytes + needsep;
ptrdiff_t nchars;
fullname = make_uninit_multibyte_string (nbytes, nbytes);
memcpy (SDATA (fullname), SDATA (directory),
directory_nbytes);
if (needsep)
SSET (fullname, directory_nbytes, DIRECTORY_SEP);
memcpy (SDATA (fullname) + directory_nbytes + needsep,
SDATA (name), len);
nchars = multibyte_chars_in_text (SDATA (fullname), nbytes);
/* Some bug somewhere. */
if (nchars > nbytes)
emacs_abort ();
STRING_SET_CHARS (fullname, nchars);
if (nchars == nbytes)
STRING_SET_UNIBYTE (fullname);
finalname = fullname;
}
else
finalname = name;
if (attrs)
{
Lisp_Object fileattrs
= file_attributes (fd, dp->d_name, id_format);
list = Fcons (Fcons (finalname, fileattrs), list);
}
else
list = Fcons (finalname, list);
}
UNGCPRO;
}
block_input ();
closedir (d);
unblock_input ();
#ifdef WINDOWSNT
if (attrs)
Vw32_get_true_file_attributes = w32_save;
#endif
/* Discard the unwind protect. */
specpdl_ptr = specpdl + count;
if (NILP (nosort))
list = Fsort (Fnreverse (list),
attrs ? Qfile_attributes_lessp : Qstring_lessp);
(void) directory_volatile;
RETURN_UNGCPRO (list);
}
Lisp_Object
w32_menu_show (struct frame *f, int x, int y, int menuflags,
Lisp_Object title, const char **error)
{
int i;
int menu_item_selection;
HMENU menu;
POINT pos;
widget_value *wv, *save_wv = 0, *first_wv = 0, *prev_wv = 0;
widget_value **submenu_stack
= (widget_value **) alloca (menu_items_used * sizeof (widget_value *));
Lisp_Object *subprefix_stack
= (Lisp_Object *) alloca (menu_items_used * word_size);
int submenu_depth = 0;
bool first_pane;
*error = NULL;
if (menu_items_n_panes == 0)
return Qnil;
if (menu_items_used <= MENU_ITEMS_PANE_LENGTH)
{
*error = "Empty menu";
return Qnil;
}
block_input ();
/* Create a tree of widget_value objects
representing the panes and their items. */
wv = make_widget_value ("menu", NULL, true, Qnil);
wv->button_type = BUTTON_TYPE_NONE;
first_wv = wv;
first_pane = true;
/* Loop over all panes and items, filling in the tree. */
i = 0;
while (i < menu_items_used)
{
if (EQ (AREF (menu_items, i), Qnil))
{
submenu_stack[submenu_depth++] = save_wv;
save_wv = prev_wv;
prev_wv = 0;
first_pane = false;
i++;
}
else if (EQ (AREF (menu_items, i), Qlambda))
{
prev_wv = save_wv;
save_wv = submenu_stack[--submenu_depth];
first_pane = false;
i++;
}
else if (EQ (AREF (menu_items, i), Qt)
&& submenu_depth != 0)
i += MENU_ITEMS_PANE_LENGTH;
/* Ignore a nil in the item list.
It's meaningful only for dialog boxes. */
else if (EQ (AREF (menu_items, i), Qquote))
i += 1;
else if (EQ (AREF (menu_items, i), Qt))
{
/* Create a new pane. */
Lisp_Object pane_name, prefix;
const char *pane_string;
pane_name = AREF (menu_items, i + MENU_ITEMS_PANE_NAME);
prefix = AREF (menu_items, i + MENU_ITEMS_PANE_PREFIX);
if (STRINGP (pane_name))
{
if (unicode_append_menu)
pane_name = ENCODE_UTF_8 (pane_name);
else if (STRING_MULTIBYTE (pane_name))
pane_name = ENCODE_SYSTEM (pane_name);
ASET (menu_items, i + MENU_ITEMS_PANE_NAME, pane_name);
}
pane_string = (NILP (pane_name)
? "" : SSDATA (pane_name));
/* If there is just one top-level pane, put all its items directly
under the top-level menu. */
if (menu_items_n_panes == 1)
pane_string = "";
/* If the pane has a meaningful name,
make the pane a top-level menu item
with its items as a submenu beneath it. */
if (!(menuflags & MENU_KEYMAPS) && strcmp (pane_string, ""))
{
wv = make_widget_value (pane_string, NULL, true, Qnil);
if (save_wv)
save_wv->next = wv;
else
first_wv->contents = wv;
if ((menuflags & MENU_KEYMAPS) && !NILP (prefix))
wv->name++;
wv->button_type = BUTTON_TYPE_NONE;
save_wv = wv;
prev_wv = 0;
}
else if (first_pane)
{
save_wv = wv;
prev_wv = 0;
}
first_pane = false;
i += MENU_ITEMS_PANE_LENGTH;
}
else
{
/* Create a new item within current pane. */
Lisp_Object item_name, enable, descrip, def, type, selected, help;
item_name = AREF (menu_items, i + MENU_ITEMS_ITEM_NAME);
enable = AREF (menu_items, i + MENU_ITEMS_ITEM_ENABLE);
descrip = AREF (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY);
def = AREF (menu_items, i + MENU_ITEMS_ITEM_DEFINITION);
type = AREF (menu_items, i + MENU_ITEMS_ITEM_TYPE);
selected = AREF (menu_items, i + MENU_ITEMS_ITEM_SELECTED);
help = AREF (menu_items, i + MENU_ITEMS_ITEM_HELP);
if (STRINGP (item_name))
{
if (unicode_append_menu)
item_name = ENCODE_UTF_8 (item_name);
else if (STRING_MULTIBYTE (item_name))
item_name = ENCODE_SYSTEM (item_name);
ASET (menu_items, i + MENU_ITEMS_ITEM_NAME, item_name);
}
if (STRINGP (descrip) && STRING_MULTIBYTE (descrip))
{
descrip = ENCODE_SYSTEM (descrip);
ASET (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY, descrip);
}
wv = make_widget_value (SSDATA (item_name), NULL, !NILP (enable),
STRINGP (help) ? help : Qnil);
if (prev_wv)
prev_wv->next = wv;
else
save_wv->contents = wv;
if (!NILP (descrip))
wv->key = SSDATA (descrip);
/* Use the contents index as call_data, since we are
restricted to 16-bits. */
wv->call_data = !NILP (def) ? (void *) (UINT_PTR) i : 0;
if (NILP (type))
wv->button_type = BUTTON_TYPE_NONE;
else if (EQ (type, QCtoggle))
wv->button_type = BUTTON_TYPE_TOGGLE;
else if (EQ (type, QCradio))
wv->button_type = BUTTON_TYPE_RADIO;
else
emacs_abort ();
wv->selected = !NILP (selected);
prev_wv = wv;
i += MENU_ITEMS_ITEM_LENGTH;
}
}
/* Deal with the title, if it is non-nil. */
if (!NILP (title))
{
widget_value *wv_title;
widget_value *wv_sep = make_widget_value ("--", NULL, false, Qnil);
/* Maybe replace this separator with a bitmap or owner-draw item
so that it looks better. Having two separators looks odd. */
wv_sep->next = first_wv->contents;
if (unicode_append_menu)
title = ENCODE_UTF_8 (title);
else if (STRING_MULTIBYTE (title))
title = ENCODE_SYSTEM (title);
wv_title = make_widget_value (SSDATA (title), NULL, true, Qnil);
wv_title->title = TRUE;
wv_title->button_type = BUTTON_TYPE_NONE;
wv_title->next = wv_sep;
first_wv->contents = wv_title;
}
/* No selection has been chosen yet. */
menu_item_selection = 0;
/* Actually create the menu. */
current_popup_menu = menu = CreatePopupMenu ();
fill_in_menu (menu, first_wv->contents);
/* Adjust coordinates to be root-window-relative. */
pos.x = x;
pos.y = y;
ClientToScreen (FRAME_W32_WINDOW (f), &pos);
/* Display the menu. */
menu_item_selection = SendMessage (FRAME_W32_WINDOW (f),
WM_EMACS_TRACKPOPUPMENU,
(WPARAM)menu, (LPARAM)&pos);
/* Clean up extraneous mouse events which might have been generated
during the call. */
discard_mouse_events ();
FRAME_DISPLAY_INFO (f)->grabbed = 0;
/* Free the widget_value objects we used to specify the contents. */
free_menubar_widget_value_tree (first_wv);
DestroyMenu (menu);
/* Free the owner-drawn and help-echo menu strings. */
w32_free_menu_strings (FRAME_W32_WINDOW (f));
f->output_data.w32->menubar_active = 0;
/* Find the selected item, and its pane, to return
the proper value. */
if (menu_item_selection != 0)
{
Lisp_Object prefix, entry;
prefix = entry = Qnil;
i = 0;
while (i < menu_items_used)
{
if (EQ (AREF (menu_items, i), Qnil))
{
subprefix_stack[submenu_depth++] = prefix;
prefix = entry;
i++;
}
else if (EQ (AREF (menu_items, i), Qlambda))
{
prefix = subprefix_stack[--submenu_depth];
i++;
}
else if (EQ (AREF (menu_items, i), Qt))
{
prefix = AREF (menu_items, i + MENU_ITEMS_PANE_PREFIX);
i += MENU_ITEMS_PANE_LENGTH;
}
/* Ignore a nil in the item list.
It's meaningful only for dialog boxes. */
else if (EQ (AREF (menu_items, i), Qquote))
i += 1;
else
{
entry = AREF (menu_items, i + MENU_ITEMS_ITEM_VALUE);
if (menu_item_selection == i)
{
if (menuflags & MENU_KEYMAPS)
{
int j;
entry = Fcons (entry, Qnil);
if (!NILP (prefix))
entry = Fcons (prefix, entry);
for (j = submenu_depth - 1; j >= 0; j--)
if (!NILP (subprefix_stack[j]))
entry = Fcons (subprefix_stack[j], entry);
}
unblock_input ();
return entry;
}
i += MENU_ITEMS_ITEM_LENGTH;
}
}
}
else if (!(menuflags & MENU_FOR_CLICK))
{
unblock_input ();
/* Make "Cancel" equivalent to C-g. */
Fsignal (Qquit, Qnil);
}
unblock_input ();
return Qnil;
}
static Lisp_Object
casify_object (enum case_action flag, Lisp_Object obj)
{
register int c, c1;
register int inword = flag == CASE_DOWN;
/* If the case table is flagged as modified, rescan it. */
if (NILP (XCHAR_TABLE (BVAR (current_buffer, downcase_table))->extras[1]))
Fset_case_table (BVAR (current_buffer, downcase_table));
if (INTEGERP (obj))
{
int flagbits = (CHAR_ALT | CHAR_SUPER | CHAR_HYPER
| CHAR_SHIFT | CHAR_CTL | CHAR_META);
int flags = XINT (obj) & flagbits;
int multibyte = ! NILP (BVAR (current_buffer, enable_multibyte_characters));
/* If the character has higher bits set
above the flags, return it unchanged.
It is not a real character. */
if ((unsigned) XFASTINT (obj) > (unsigned) flagbits)
return obj;
c1 = XFASTINT (obj) & ~flagbits;
/* FIXME: Even if enable-multibyte-characters is nil, we may
manipulate multibyte chars. This means we have a bug for latin-1
chars since when we receive an int 128-255 we can't tell whether
it's an eight-bit byte or a latin-1 char. */
if (c1 >= 256)
multibyte = 1;
if (! multibyte)
MAKE_CHAR_MULTIBYTE (c1);
c = downcase (c1);
if (inword)
XSETFASTINT (obj, c | flags);
else if (c == (XFASTINT (obj) & ~flagbits))
{
if (! inword)
c = upcase1 (c1);
if (! multibyte)
MAKE_CHAR_UNIBYTE (c);
XSETFASTINT (obj, c | flags);
}
return obj;
}
if (!STRINGP (obj))
wrong_type_argument (Qchar_or_string_p, obj);
else if (!STRING_MULTIBYTE (obj))
{
EMACS_INT i;
EMACS_INT size = SCHARS (obj);
obj = Fcopy_sequence (obj);
for (i = 0; i < size; i++)
{
c = SREF (obj, i);
MAKE_CHAR_MULTIBYTE (c);
c1 = c;
if (inword && flag != CASE_CAPITALIZE_UP)
c = downcase (c);
else if (!uppercasep (c)
&& (!inword || flag != CASE_CAPITALIZE_UP))
c = upcase1 (c1);
if ((int) flag >= (int) CASE_CAPITALIZE)
inword = (SYNTAX (c) == Sword);
if (c != c1)
{
MAKE_CHAR_UNIBYTE (c);
/* If the char can't be converted to a valid byte, just don't
change it. */
if (c >= 0 && c < 256)
SSET (obj, i, c);
}
}
return obj;
}
else
{
EMACS_INT i, i_byte, size = SCHARS (obj);
int len;
USE_SAFE_ALLOCA;
unsigned char *dst, *o;
/* Over-allocate by 12%: this is a minor overhead, but should be
sufficient in 99.999% of the cases to avoid a reallocation. */
EMACS_INT o_size = SBYTES (obj) + SBYTES (obj) / 8 + MAX_MULTIBYTE_LENGTH;
SAFE_ALLOCA (dst, void *, o_size);
o = dst;
for (i = i_byte = 0; i < size; i++, i_byte += len)
{
if ((o - dst) + MAX_MULTIBYTE_LENGTH > o_size)
{ /* Not enough space for the next char: grow the destination. */
unsigned char *old_dst = dst;
o_size += o_size; /* Probably overkill, but extremely rare. */
SAFE_ALLOCA (dst, void *, o_size);
memcpy (dst, old_dst, o - old_dst);
o = dst + (o - old_dst);
}
c = STRING_CHAR_AND_LENGTH (SDATA (obj) + i_byte, len);
if (inword && flag != CASE_CAPITALIZE_UP)
c = downcase (c);
else if (!uppercasep (c)
&& (!inword || flag != CASE_CAPITALIZE_UP))
c = upcase1 (c);
if ((int) flag >= (int) CASE_CAPITALIZE)
inword = (SYNTAX (c) == Sword);
o += CHAR_STRING (c, o);
}
eassert (o - dst <= o_size);
obj = make_multibyte_string ((char *) dst, size, o - dst);
SAFE_FREE ();
return obj;
}
}
widget_value *
digest_single_submenu (int start, int end, int top_level_items)
{
widget_value *wv, *prev_wv, *save_wv, *first_wv;
int i;
int submenu_depth = 0;
widget_value **submenu_stack;
int panes_seen = 0;
submenu_stack
= (widget_value **) alloca (menu_items_used * sizeof (widget_value *));
wv = xmalloc_widget_value ();
wv->name = "menu";
wv->value = 0;
wv->enabled = 1;
wv->button_type = BUTTON_TYPE_NONE;
wv->help = Qnil;
first_wv = wv;
save_wv = 0;
prev_wv = 0;
/* Loop over all panes and items made by the preceding call
to parse_single_submenu and construct a tree of widget_value objects.
Ignore the panes and items used by previous calls to
digest_single_submenu, even though those are also in menu_items. */
i = start;
while (i < end)
{
if (EQ (XVECTOR (menu_items)->contents[i], Qnil))
{
submenu_stack[submenu_depth++] = save_wv;
save_wv = prev_wv;
prev_wv = 0;
i++;
}
else if (EQ (XVECTOR (menu_items)->contents[i], Qlambda))
{
prev_wv = save_wv;
save_wv = submenu_stack[--submenu_depth];
i++;
}
else if (EQ (XVECTOR (menu_items)->contents[i], Qt)
&& submenu_depth != 0)
i += MENU_ITEMS_PANE_LENGTH;
/* Ignore a nil in the item list.
It's meaningful only for dialog boxes. */
else if (EQ (XVECTOR (menu_items)->contents[i], Qquote))
i += 1;
else if (EQ (XVECTOR (menu_items)->contents[i], Qt))
{
/* Create a new pane. */
Lisp_Object pane_name, prefix;
const char *pane_string;
panes_seen++;
pane_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_NAME];
prefix = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX];
#ifdef HAVE_NTGUI
if (STRINGP (pane_name))
{
if (unicode_append_menu)
/* Encode as UTF-8 for now. */
pane_name = ENCODE_UTF_8 (pane_name);
else if (STRING_MULTIBYTE (pane_name))
pane_name = ENCODE_SYSTEM (pane_name);
ASET (menu_items, i + MENU_ITEMS_PANE_NAME, pane_name);
}
#elif defined (USE_LUCID) && defined (HAVE_XFT)
if (STRINGP (pane_name))
{
pane_name = ENCODE_UTF_8 (pane_name);
ASET (menu_items, i + MENU_ITEMS_PANE_NAME, pane_name);
}
#elif !defined (HAVE_MULTILINGUAL_MENU)
if (STRINGP (pane_name) && STRING_MULTIBYTE (pane_name))
{
pane_name = ENCODE_MENU_STRING (pane_name);
ASET (menu_items, i + MENU_ITEMS_PANE_NAME, pane_name);
}
#endif
pane_string = (NILP (pane_name)
? "" : (char *) SDATA (pane_name));
/* If there is just one top-level pane, put all its items directly
under the top-level menu. */
if (menu_items_n_panes == 1)
pane_string = "";
/* If the pane has a meaningful name,
make the pane a top-level menu item
with its items as a submenu beneath it. */
if (strcmp (pane_string, ""))
{
wv = xmalloc_widget_value ();
if (save_wv)
save_wv->next = wv;
else
first_wv->contents = wv;
wv->lname = pane_name;
/* Set value to 1 so update_submenu_strings can handle '@' */
wv->value = (char *)1;
wv->enabled = 1;
wv->button_type = BUTTON_TYPE_NONE;
wv->help = Qnil;
save_wv = wv;
}
else
save_wv = first_wv;
prev_wv = 0;
i += MENU_ITEMS_PANE_LENGTH;
}
else
{
/* Create a new item within current pane. */
Lisp_Object item_name, enable, descrip, def, type, selected;
Lisp_Object help;
/* All items should be contained in panes. */
if (panes_seen == 0)
abort ();
item_name = AREF (menu_items, i + MENU_ITEMS_ITEM_NAME);
enable = AREF (menu_items, i + MENU_ITEMS_ITEM_ENABLE);
descrip = AREF (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY);
def = AREF (menu_items, i + MENU_ITEMS_ITEM_DEFINITION);
type = AREF (menu_items, i + MENU_ITEMS_ITEM_TYPE);
selected = AREF (menu_items, i + MENU_ITEMS_ITEM_SELECTED);
help = AREF (menu_items, i + MENU_ITEMS_ITEM_HELP);
#ifdef HAVE_NTGUI
if (STRINGP (item_name))
{
if (unicode_append_menu)
item_name = ENCODE_UTF_8 (item_name);
else if (STRING_MULTIBYTE (item_name))
item_name = ENCODE_SYSTEM (item_name);
ASET (menu_items, i + MENU_ITEMS_ITEM_NAME, item_name);
}
if (STRINGP (descrip) && STRING_MULTIBYTE (descrip))
{
descrip = ENCODE_SYSTEM (descrip);
ASET (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY, descrip);
}
#elif USE_LUCID
if (STRINGP (item_name))
{
item_name = ENCODE_UTF_8 (item_name);
ASET (menu_items, i + MENU_ITEMS_ITEM_NAME, item_name);
}
if (STRINGP (descrip))
{
descrip = ENCODE_UTF_8 (descrip);
ASET (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY, descrip);
}
#elif !defined (HAVE_MULTILINGUAL_MENU)
if (STRING_MULTIBYTE (item_name))
{
item_name = ENCODE_MENU_STRING (item_name);
ASET (menu_items, i + MENU_ITEMS_ITEM_NAME, item_name);
}
if (STRINGP (descrip) && STRING_MULTIBYTE (descrip))
{
descrip = ENCODE_MENU_STRING (descrip);
ASET (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY, descrip);
}
#endif
wv = xmalloc_widget_value ();
if (prev_wv)
prev_wv->next = wv;
else
save_wv->contents = wv;
wv->lname = item_name;
if (!NILP (descrip))
wv->lkey = descrip;
wv->value = 0;
/* The EMACS_INT cast avoids a warning. There's no problem
as long as pointers have enough bits to hold small integers. */
wv->call_data = (!NILP (def) ? (void *) (EMACS_INT) i : 0);
wv->enabled = !NILP (enable);
if (NILP (type))
wv->button_type = BUTTON_TYPE_NONE;
else if (EQ (type, QCradio))
wv->button_type = BUTTON_TYPE_RADIO;
else if (EQ (type, QCtoggle))
wv->button_type = BUTTON_TYPE_TOGGLE;
else
abort ();
wv->selected = !NILP (selected);
if (! STRINGP (help))
help = Qnil;
wv->help = help;
prev_wv = wv;
i += MENU_ITEMS_ITEM_LENGTH;
}
}
/* If we have just one "menu item"
that was originally a button, return it by itself. */
if (top_level_items && first_wv->contents && first_wv->contents->next == 0)
{
wv = first_wv->contents;
free_widget_value (first_wv);
return wv;
}
return first_wv;
}
Lisp_Object
directory_files_internal (Lisp_Object directory, Lisp_Object full, Lisp_Object match, Lisp_Object nosort, int attrs, Lisp_Object id_format)
{
DIR *d;
int directory_nbytes;
Lisp_Object list, dirfilename, encoded_directory;
struct re_pattern_buffer *bufp = NULL;
int needsep = 0;
int count = SPECPDL_INDEX ();
struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5;
DIRENTRY *dp;
#ifdef WINDOWSNT
Lisp_Object w32_save = Qnil;
#endif
/* Because of file name handlers, these functions might call
Ffuncall, and cause a GC. */
list = encoded_directory = dirfilename = Qnil;
GCPRO5 (match, directory, list, dirfilename, encoded_directory);
dirfilename = Fdirectory_file_name (directory);
if (!NILP (match))
{
CHECK_STRING (match);
/* MATCH might be a flawed regular expression. Rather than
catching and signaling our own errors, we just call
compile_pattern to do the work for us. */
/* Pass 1 for the MULTIBYTE arg
because we do make multibyte strings if the contents warrant. */
# ifdef WINDOWSNT
/* Windows users want case-insensitive wildcards. */
bufp = compile_pattern (match, 0,
buffer_defaults.case_canon_table, 0, 1);
# else /* !WINDOWSNT */
bufp = compile_pattern (match, 0, Qnil, 0, 1);
# endif /* !WINDOWSNT */
}
/* Note: ENCODE_FILE and DECODE_FILE can GC because they can run
run_pre_post_conversion_on_str which calls Lisp directly and
indirectly. */
if (STRING_MULTIBYTE (dirfilename))
dirfilename = ENCODE_FILE (dirfilename);
encoded_directory = (STRING_MULTIBYTE (directory)
? ENCODE_FILE (directory) : directory);
/* Now *bufp is the compiled form of MATCH; don't call anything
which might compile a new regexp until we're done with the loop! */
BLOCK_INPUT;
d = opendir (SDATA (dirfilename));
UNBLOCK_INPUT;
if (d == NULL)
report_file_error ("Opening directory", Fcons (directory, Qnil));
/* Unfortunately, we can now invoke expand-file-name and
file-attributes on filenames, both of which can throw, so we must
do a proper unwind-protect. */
record_unwind_protect (directory_files_internal_unwind,
make_save_value (d, 0));
#ifdef WINDOWSNT
if (attrs)
{
extern int is_slow_fs (const char *);
/* Do this only once to avoid doing it (in w32.c:stat) for each
file in the directory, when we call Ffile_attributes below. */
record_unwind_protect (directory_files_internal_w32_unwind,
Vw32_get_true_file_attributes);
w32_save = Vw32_get_true_file_attributes;
if (EQ (Vw32_get_true_file_attributes, Qlocal))
{
/* w32.c:stat will notice these bindings and avoid calling
GetDriveType for each file. */
if (is_slow_fs (SDATA (dirfilename)))
Vw32_get_true_file_attributes = Qnil;
else
Vw32_get_true_file_attributes = Qt;
}
}
#endif
directory_nbytes = SBYTES (directory);
re_match_object = Qt;
/* Decide whether we need to add a directory separator. */
if (directory_nbytes == 0
|| !IS_ANY_SEP (SREF (directory, directory_nbytes - 1)))
needsep = 1;
/* Loop reading blocks until EOF or error. */
for (;;)
{
errno = 0;
dp = readdir (d);
if (dp == NULL && (0
#ifdef EAGAIN
|| errno == EAGAIN
#endif
#ifdef EINTR
|| errno == EINTR
#endif
))
{ QUIT; continue; }
if (dp == NULL)
break;
if (DIRENTRY_NONEMPTY (dp))
{
int len;
int wanted = 0;
Lisp_Object name, finalname;
struct gcpro gcpro1, gcpro2;
len = NAMLEN (dp);
name = finalname = make_unibyte_string (dp->d_name, len);
GCPRO2 (finalname, name);
/* Note: DECODE_FILE can GC; it should protect its argument,
though. */
name = DECODE_FILE (name);
len = SBYTES (name);
/* Now that we have unwind_protect in place, we might as well
allow matching to be interrupted. */
immediate_quit = 1;
QUIT;
if (NILP (match)
|| (0 <= re_search (bufp, SDATA (name), len, 0, len, 0)))
wanted = 1;
immediate_quit = 0;
if (wanted)
{
if (!NILP (full))
{
Lisp_Object fullname;
int nbytes = len + directory_nbytes + needsep;
int nchars;
fullname = make_uninit_multibyte_string (nbytes, nbytes);
memcpy (SDATA (fullname), SDATA (directory),
directory_nbytes);
if (needsep)
SSET (fullname, directory_nbytes, DIRECTORY_SEP);
memcpy (SDATA (fullname) + directory_nbytes + needsep,
SDATA (name), len);
nchars = chars_in_text (SDATA (fullname), nbytes);
/* Some bug somewhere. */
if (nchars > nbytes)
abort ();
STRING_SET_CHARS (fullname, nchars);
if (nchars == nbytes)
STRING_SET_UNIBYTE (fullname);
finalname = fullname;
}
else
finalname = name;
if (attrs)
{
/* Construct an expanded filename for the directory entry.
Use the decoded names for input to Ffile_attributes. */
Lisp_Object decoded_fullname, fileattrs;
struct gcpro gcpro1, gcpro2;
decoded_fullname = fileattrs = Qnil;
GCPRO2 (decoded_fullname, fileattrs);
/* Both Fexpand_file_name and Ffile_attributes can GC. */
decoded_fullname = Fexpand_file_name (name, directory);
fileattrs = Ffile_attributes (decoded_fullname, id_format);
list = Fcons (Fcons (finalname, fileattrs), list);
UNGCPRO;
}
else
list = Fcons (finalname, list);
}
UNGCPRO;
}
}
BLOCK_INPUT;
closedir (d);
UNBLOCK_INPUT;
#ifdef WINDOWSNT
if (attrs)
Vw32_get_true_file_attributes = w32_save;
#endif
/* Discard the unwind protect. */
specpdl_ptr = specpdl + count;
if (NILP (nosort))
list = Fsort (Fnreverse (list),
attrs ? Qfile_attributes_lessp : Qstring_lessp);
RETURN_UNGCPRO (list);
}
