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(decode_env_path): Add /: to dir names that could be magic.

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(init_cmdargs): Add /: to argv[0] if it could be magic.
This commit is contained in:
Richard M. Stallman 1996-10-04 05:08:44 +00:00
parent 477c388f4b
commit 213d0b1f8b
1 changed files with 42 additions and 10 deletions
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52
src/emacs.c
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@ -91,6 +91,8 @@ Lisp_Object Vsystem_configuration;
for use when reporting bugs. */
Lisp_Object Vsystem_configuration_options;
Lisp_Object Qfile_name_handler_alist;
/* If non-zero, emacs should not attempt to use an window-specific code,
but instead should use the virtual terminal under which it was started */
int inhibit_window_system;
@ -210,13 +212,24 @@ init_cmdargs (argc, argv, skip_args)
int skip_args;
{
register int i;
Lisp_Object name, dir;
Lisp_Object name, dir, tem;
int count = specpdl_ptr - specpdl;
Lisp_Object raw_name;
initial_argv = argv;
initial_argc = argc;
Vinvocation_name = Ffile_name_nondirectory (build_string (argv[0]));
Vinvocation_directory = Ffile_name_directory (build_string (argv[0]));
raw_name = build_string (argv[0]);
/* Add /: to the front of the name
if it would otherwise be treated as magic. */
tem = Ffind_file_name_handler (raw_name, Qt);
if (! NILP (tem))
raw_name = concat2 (build_string ("/:"), raw_name);
Vinvocation_name = Ffile_name_nondirectory (raw_name);
Vinvocation_directory = Ffile_name_directory (raw_name);
/* If we got no directory in argv[0], search PATH to find where
Emacs actually came from. */
if (NILP (Vinvocation_directory))
@ -225,12 +238,20 @@ init_cmdargs (argc, argv, skip_args)
int yes = openp (Vexec_path, Vinvocation_name,
EXEC_SUFFIXES, &found, 1);
if (yes == 1)
Vinvocation_directory = Ffile_name_directory (found);
{
/* Add /: to the front of the name
if it would otherwise be treated as magic. */
tem = Ffind_file_name_handler (found, Qt);
if (! NILP (tem))
found = concat2 (build_string ("/:"), found);
Vinvocation_directory = Ffile_name_directory (found);
}
}
if (!NILP (Vinvocation_directory)
&& NILP (Ffile_name_absolute_p (Vinvocation_directory)))
/* Emacs was started with relative path, like ./emacs */
/* Emacs was started with relative path, like ./emacs.
Make it absolute. */
Vinvocation_directory = Fexpand_file_name (Vinvocation_directory, Qnil);
Vinstallation_directory = Qnil;
@ -298,6 +319,8 @@ init_cmdargs (argc, argv, skip_args)
Vcommand_line_args
= Fcons (build_string (argv[i]), Vcommand_line_args);
}
unbind_to (count, Qnil);
}
DEFUN ("invocation-name", Finvocation_name, Sinvocation_name, 0, 0, 0,
@ -1466,8 +1489,7 @@ decode_env_path (evarname, defalt)
char *evarname, *defalt;
{
register char *path, *p;
Lisp_Object lpath;
Lisp_Object lpath, element, tem;
/* It's okay to use getenv here, because this function is only used
to initialize variables when Emacs starts up, and isn't called
@ -1483,9 +1505,16 @@ decode_env_path (evarname, defalt)
{
p = index (path, SEPCHAR);
if (!p) p = path + strlen (path);
lpath = Fcons (p - path ? make_string (path, p - path)
: build_string ("."),
lpath);
element = (p - path ? make_string (path, p - path)
: build_string ("."));
/* Add /: to the front of the name
if it would otherwise be treated as magic. */
tem = Ffind_file_name_handler (element, Qt);
if (! NILP (tem))
element = concat2 (build_string ("/:"), element);
lpath = Fcons (element, lpath);
if (*p)
path = p + 1;
else
@ -1496,6 +1525,9 @@ decode_env_path (evarname, defalt)
syms_of_emacs ()
{
Qfile_name_handler_alist = intern ("file-name-handler-alist");
staticpro (&Qfile_name_handler_alist);
#ifndef CANNOT_DUMP
#ifdef HAVE_SHM
defsubr (&Sdump_emacs_data);