Merge from emacs--devo--0

[gnu-emacs] / src / callproc.c

diff --git a/src/callproc.c b/src/callproc.c
index 0c8089c93228ab3ffcb7d78af084423b935f6641..d8eebac08a63ae3f1b710030545530cb29e4c231 100644 (file)
--- a/src/callproc.c
+++ b/src/callproc.c
@@ -1,6 +1,6 @@
 /* Synchronous subprocess invocation for GNU Emacs.
    Copyright (C) 1985, 1986, 1987, 1988, 1993, 1994, 1995, 1999, 2000, 2001,
-     2002, 2003, 2004, 2005  Free Software Foundation, Inc.
+                 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
 
 This file is part of GNU Emacs.
 
@@ -16,8 +16,8 @@ GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with GNU Emacs; see the file COPYING.  If not, write to
-the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
+the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA.  */
 
 
 #include <config.h>
@@ -203,6 +203,10 @@ t (mix it with ordinary output), or a file name string.
 Fourth arg DISPLAY non-nil means redisplay buffer as output is inserted.
 Remaining arguments are strings passed as command arguments to PROGRAM.
 
+If executable PROGRAM can't be found as an executable, `call-process'
+signals a Lisp error.  `call-process' reports errors in execution of
+the program only through its return and output.
+
 If BUFFER is 0, `call-process' returns immediately with value nil.
 Otherwise it waits for PROGRAM to terminate
 and returns a numeric exit status or a signal description string.
@@ -269,6 +273,7 @@ usage: (call-process PROGRAM &optional INFILE BUFFER DISPLAY &rest ARGS)  */)
     if (nargs >= 5)
       {
        int must_encode = 0;
+       Lisp_Object coding_attrs;
 
        for (i = 4; i < nargs; i++)
          CHECK_STRING (args[i]);
@@ -294,7 +299,15 @@ usage: (call-process PROGRAM &optional INFILE BUFFER DISPLAY &rest ARGS)  */)
            else
              val = Qnil;
          }
+       val = coding_inherit_eol_type (val, Qnil);
        setup_coding_system (Fcheck_coding_system (val), &argument_coding);
+       coding_attrs = CODING_ID_ATTRS (argument_coding.id);
+       if (NILP (CODING_ATTR_ASCII_COMPAT (coding_attrs)))
+         {
+           /* We should not use an ASCII incompatible coding system.  */
+           val = raw_text_coding_system (val);
+           setup_coding_system (val, &argument_coding);
+         }
       }
   }
 
@@ -355,11 +368,11 @@ usage: (call-process PROGRAM &optional INFILE BUFFER DISPLAY &rest ARGS)  */)
      protected by the caller, so all we really have to worry about is
      buffer.  */
   {
-    struct gcpro gcpro1, gcpro2, gcpro3;
+    struct gcpro gcpro1, gcpro2, gcpro3, gcpro4;
 
     current_dir = current_buffer->directory;
 
-    GCPRO3 (infile, buffer, current_dir);
+    GCPRO4 (infile, buffer, current_dir, error_file);
 
     current_dir
       = expand_and_dir_to_file (Funhandled_file_name_directory (current_dir),
@@ -368,6 +381,12 @@ usage: (call-process PROGRAM &optional INFILE BUFFER DISPLAY &rest ARGS)  */)
       report_file_error ("Setting current directory",
                         Fcons (current_buffer->directory, Qnil));
 
+    if (STRING_MULTIBYTE (infile))
+      infile = ENCODE_FILE (infile);
+    if (STRING_MULTIBYTE (current_dir))
+      current_dir = ENCODE_FILE (current_dir);
+    if (STRINGP (error_file) && STRING_MULTIBYTE (error_file))
+      error_file = ENCODE_FILE (error_file);
     UNGCPRO;
   }
 
@@ -376,6 +395,7 @@ usage: (call-process PROGRAM &optional INFILE BUFFER DISPLAY &rest ARGS)  */)
   filefd = emacs_open (SDATA (infile), O_RDONLY, 0);
   if (filefd < 0)
     {
+      infile = DECODE_FILE (infile);
       report_file_error ("Opening process input file", Fcons (infile, Qnil));
     }
   /* Search for program; barf if not found.  */
@@ -529,14 +549,13 @@ usage: (call-process PROGRAM &optional INFILE BUFFER DISPLAY &rest ARGS)  */)
 #ifdef MSDOS
        unlink (tempfile);
 #endif
-       report_file_error ("Cannot redirect stderr",
-                          Fcons ((NILP (error_file)
-                                  ? build_string (NULL_DEVICE) : error_file),
-                                 Qnil));
+       if (NILP (error_file))
+         error_file = build_string (NULL_DEVICE);
+       else if (STRINGP (error_file))
+         error_file = DECODE_FILE (error_file);
+       report_file_error ("Cannot redirect stderr", Fcons (error_file, Qnil));
       }
 
-    current_dir = ENCODE_FILE (current_dir);
-
 #ifdef MAC_OS8
     {
       /* Call run_mac_command in sysdep.c here directly instead of doing
@@ -896,9 +915,11 @@ static Lisp_Object
 delete_temp_file (name)
      Lisp_Object name;
 {
-  /* Use Fdelete_file (indirectly) because that runs a file name handler.
-     We did that when writing the file, so we should do so when deleting.  */
+  /* Suppress jka-compr handling, etc.  */
+  int count = SPECPDL_INDEX ();
+  specbind (intern ("file-name-handler-alist"), Qnil);
   internal_delete_file (name);
+  unbind_to (count, Qnil);
   return Qnil;
 }
 
@@ -1009,6 +1030,9 @@ usage: (call-process-region START END PROGRAM &optional DELETE BUFFER DISPLAY &r
     int count1 = SPECPDL_INDEX ();
 
     specbind (intern ("coding-system-for-write"), val);
+    /* POSIX lets mk[s]temp use "."; don't invoke jka-compr if we
+       happen to get a ".Z" suffix.  */
+    specbind (intern ("file-name-handler-alist"), Qnil);
     Fwrite_region (start, end, filename_string, Qnil, Qlambda, Qnil, Qnil);
 
     unbind_to (count1, Qnil);