New C macro AUTO_STRING_WITH_LEN

Put a bit less pressure on the garbage collector by defining a
macro that is like AUTO_STRING but also allows null bytes in strings,
and by extending AUTO_STRING to work with any unibyte string.
* src/alloc.c (verify_ascii): Remove; all uses removed.
AUTO_STRING can now be used on non-ASCII unibyte strings.
* src/lisp.h (AUTO_STRING): Now allows non-ASCII unibyte strings.
(AUTO_STRING_WITH_LEN): New macro.
* src/coding.c (from_unicode_buffer):
* src/editfns.c (format_time_string):
* src/emacs-module.c (module_make_string, module_format_fun_env):
* src/fileio.c (Fexpand_file_name):
* src/font.c (font_parse_family_registry):
* src/ftfont.c (ftfont_get_charset):
* src/keymap.c (silly_event_symbol_error):
* src/menu.c (single_menu_item):
* src/sysdep.c (system_process_attributes):
Use AUTO_STRING_WITH_LEN if possible.
* src/emacs-module.c (module_make_function):
* src/fileio.c (report_file_errno, report_file_notify_error):
* src/fns.c (Flocale_info):
* src/sysdep.c (system_process_attributes):
Use AUTO_STRING if possible.  This is doable more often now
that AUTO_STRING works on any unibyte string.

1 files changed, 2 insertions, 3 deletions

diff --git a/src/fns.c b/src/fns.c
index 114a556612a..1ace3bb888e 100644
--- a/src/fns.c
+++ b/src/fns.c
@@ -2999,7 +2999,6 @@ The data read from the system are decoded using `locale-coding-system'.  */)
 {
   char *str = NULL;
 #ifdef HAVE_LANGINFO_CODESET
-  Lisp_Object val;
   if (EQ (item, Qcodeset))
     {
       str = nl_langinfo (CODESET);
@@ -3015,7 +3014,7 @@ The data read from the system are decoded using `locale-coding-system'.  */)
       for (i = 0; i < 7; i++)
         {
           str = nl_langinfo (days[i]);
-          val = build_unibyte_string (str);
+          AUTO_STRING (val, str);
           /* Fixme: Is this coding system necessarily right, even if
              it is consistent with CODESET?  If not, what to do?  */
           ASET (v, i, code_convert_string_norecord (val, Vlocale_coding_system,
@@ -3035,7 +3034,7 @@ The data read from the system are decoded using `locale-coding-system'.  */)
       for (i = 0; i < 12; i++)
         {
           str = nl_langinfo (months[i]);
-          val = build_unibyte_string (str);
+          AUTO_STRING (val, str);
           ASET (v, i, code_convert_string_norecord (val, Vlocale_coding_system,
                                                     0));
         }