Github/emacs
2
0
Fork 1
mirror of git://git.sv.gnu.org/emacs.git synced 2026-02-21 04:17:35 +00:00
Code Issues Projects Releases Packages Wiki Activity

*** empty log message ***

Browse source
This commit is contained in:
Roland McGrath 1991-08-15 18:30:10 +00:00
parent bcc78bc020
commit 01050cb5ab
1 changed files with 35 additions and 16 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

51
src/buffer.c
View file

@ -93,6 +93,7 @@ static Lisp_Object Vbuffer_local_symbols;
int check_protected_fields;
Lisp_Object Fset_buffer ();
void set_buffer_internal ();
/* Alist of all buffer names vs the buffers. */
/* This used to be a variable, but is no longer,
@ -306,12 +307,16 @@ reset_buffer_local_variables(b)
*(Lisp_Object *)(offset + (char *)&buffer_defaults);
}
DEFUN ("generate-new-buffer", Fgenerate_new_buffer, Sgenerate_new_buffer,
/* We split this away from generate-new-buffer, because rename-buffer
and set-visited-file-name ought to be able to use this to really
rename the buffer properly. */
DEFUN ("generate-new-buffer-name", Fgenerate_new_buffer_name, Sgenerate_new_buffer_name,
1, 1, 0,
"Create and return a buffer with a name based on NAME.\n\
If there is no live buffer named NAME, then one is created.\n\
"Return a string that is the name of no existing buffer based on NAME.\n\
If there is no live buffer named NAME, then return NAME.\n\
Otherwise modify name by appending `<NUMBER>', incrementing NUMBER\n\
until an unused name is found, and then create a buffer.")
until an unused name is found, and then return that name.")
(name)
register Lisp_Object name;
{
@ -323,7 +328,7 @@ until an unused name is found, and then create a buffer.")
tem = Fget_buffer (name);
if (NULL (tem))
return Fget_buffer_create (name);
return name;
count = 1;
while (1)
@ -332,14 +337,14 @@ until an unused name is found, and then create a buffer.")
gentemp = concat2 (name, build_string (number));
tem = Fget_buffer (gentemp);
if (NULL (tem))
return Fget_buffer_create (gentemp);
return gentemp;
}
}
DEFUN ("buffer-name", Fbuffer_name, Sbuffer_name, 0, 1, 0,
"Return the name of BUFFER, as a string.\n\
Wyth no argument or nil as argument, return the name of the current buffer.")
With no argument or nil as argument, return the name of the current buffer.")
(buffer)
register Lisp_Object buffer;
{
@ -490,27 +495,38 @@ No argument or nil as argument means use current buffer as BUFFER.")
return make_number (BUF_MODIFF (buf));
}
DEFUN ("rename-buffer", Frename_buffer, Srename_buffer, 1, 1,
DEFUN ("rename-buffer", Frename_buffer, Srename_buffer, 1, 2,
"sRename buffer (to new name): ",
"Change current buffer's name to NEWNAME (a string).\n\
It is an error if a buffer named NEWNAME already exists.\n\
If second arg DISTINGUISH is nil or omitted, it is an error if a\n\
buffer named NEWNAME already exists.\n\
If DISTINGUISH is non-nil, come up with a new name using\n\
`generate-new-buffer-name'.\n\
Return the name we actually gave the buffer.\n\
This does not change the name of the visited file (if any).")
(name)
register Lisp_Object name;
(name, distinguish)
register Lisp_Object name, distinguish;
{
register Lisp_Object tem, buf;
CHECK_STRING (name, 0);
tem = Fget_buffer (name);
if (XBUFFER (tem) == current_buffer)
return current_buffer->name;
if (!NULL (tem))
error ("Buffer name \"%s\" is in use", XSTRING (name)->data);
{
if (!NULL (distinguish))
name = Fgenerate_new_buffer_name (name);
else
error ("Buffer name \"%s\" is in use", XSTRING (name)->data);
}
current_buffer->name = name;
XSET (buf, Lisp_Buffer, current_buffer);
Fsetcar (Frassq (buf, Vbuffer_alist), name);
if (NULL (current_buffer->filename) && !NULL (current_buffer->auto_save_file_name))
call0 (intern ("rename-auto-save-file"));
return Qnil;
return name;
}
DEFUN ("other-buffer", Fother_buffer, Sother_buffer, 0, 1, 0,
@ -1104,7 +1120,10 @@ a non-nil `permanent-local' property are not eliminated by this function.")
sym = XCONS (XCONS (alist)->car)->car;
tem = Fget (sym, Qpermanent_local);
if (! NULL (tem))
Fmake_local_variable (sym, XCONS (XCONS (alist)->car)->cdr);
{
Fmake_local_variable (sym);
Fset (sym, XCONS (XCONS (alist)->car)->cdr);
}
}
/* Force mode-line redisplay. Useful here because all major mode
@ -1515,7 +1534,7 @@ See `add-field'.");
/*DEFVAR_LISP ("debug-check-symbol", &Vcheck_symbol,
"Don't ask.");
*/
DEFVAR_LISP ("bgfore-change-function", &Vbefore_change_function,
DEFVAR_LISP ("before-change-function", &Vbefore_change_function,
"Function to call before each text change.\n\
Two arguments are passed to the function: the positions of\n\
the beginning and end of the range of old text to be changed.\n\
@ -1572,7 +1591,7 @@ If the value of the variable is t, undo information is not recorded.\n\
defsubr (&Sget_buffer);
defsubr (&Sget_file_buffer);
defsubr (&Sget_buffer_create);
defsubr (&Sgenerate_new_buffer);
defsubr (&Sgenerate_new_buffer_name);
defsubr (&Sbuffer_name);
/*defsubr (&Sbuffer_number);*/
defsubr (&Sbuffer_file_name);