Avoid encoding file names run through dostounix_filename on MS-Windows.

[bpt/emacs.git] / src / coding.h

diff --git a/src/coding.h b/src/coding.h
index c45d2ef..eb95fa1 100644 (file)
--- a/src/coding.h
+++ b/src/coding.h
@@ -1,5 +1,5 @@
 /* Header for coding system handler.
-   Copyright (C) 2001-2012  Free Software Foundation, Inc.
+   Copyright (C) 2001-2013 Free Software Foundation, Inc.
    Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
      2005, 2006, 2007, 2008, 2009, 2010, 2011
      National Institute of Advanced Industrial Science and Technology (AIST)
@@ -646,10 +646,8 @@ struct coding_system
    for file names, if any.  */
 #define ENCODE_FILE(name)                                                 \
   (! NILP (Vfile_name_coding_system)                                      \
-   && !EQ (Vfile_name_coding_system, make_number (0))                     \
    ? code_convert_string_norecord (name, Vfile_name_coding_system, 1)     \
    : (! NILP (Vdefault_file_name_coding_system)                                   \
-      && !EQ (Vdefault_file_name_coding_system, make_number (0))          \
       ? code_convert_string_norecord (name, Vdefault_file_name_coding_system, 1) \
       : name))
 
@@ -658,10 +656,8 @@ struct coding_system
    for file names, if any.  */
 #define DECODE_FILE(name)                                                 \
   (! NILP (Vfile_name_coding_system)                                      \
-   && !EQ (Vfile_name_coding_system, make_number (0))                     \
    ? code_convert_string_norecord (name, Vfile_name_coding_system, 0)     \
    : (! NILP (Vdefault_file_name_coding_system)                                   \
-      && !EQ (Vdefault_file_name_coding_system, make_number (0))          \
       ? code_convert_string_norecord (name, Vdefault_file_name_coding_system, 0) \
       : name))
 
@@ -670,7 +666,6 @@ struct coding_system
    for system functions, if any.  */
 #define ENCODE_SYSTEM(str)                                                \
   (! NILP (Vlocale_coding_system)                                         \
-   && !EQ (Vlocale_coding_system, make_number (0))                        \
    ? code_convert_string_norecord (str, Vlocale_coding_system, 1)         \
    : str)
 
@@ -678,7 +673,6 @@ struct coding_system
    for system functions, if any.  */
 #define DECODE_SYSTEM(str)                                                \
   (! NILP (Vlocale_coding_system)                                         \
-   && !EQ (Vlocale_coding_system, make_number (0))                        \
    ? code_convert_string_norecord (str, Vlocale_coding_system, 0)         \
    : str)
 
@@ -707,6 +701,28 @@ extern void encode_coding_object (struct coding_system *,
                                   Lisp_Object, ptrdiff_t, ptrdiff_t,
                                   ptrdiff_t, ptrdiff_t, Lisp_Object);
 
+#if defined (WINDOWSNT) || defined (CYGWIN)
+
+/* These functions use Lisp string objects to store the UTF-16LE
+   strings that modern versions of Windows expect.  These strings are
+   not particularly useful to Lisp, and all Lisp strings should be
+   native Emacs multibyte.  */
+
+/* Access the wide-character string stored in a Lisp string object.  */
+#define WCSDATA(x) ((wchar_t *) SDATA (x))
+
+/* Convert the multi-byte string in STR to UTF-16LE encoded unibyte
+   string, and store it in *BUF.  BUF may safely point to STR on entry.  */
+extern wchar_t *to_unicode (Lisp_Object str, Lisp_Object *buf);
+
+/* Convert STR, a UTF-16LE encoded string embedded in a unibyte string
+   object, to a multi-byte Emacs string and return it.  This function
+   calls code_convert_string_norecord internally and has all its
+   failure modes.  STR itself is not modified.  */
+extern Lisp_Object from_unicode (Lisp_Object str);
+
+#endif /* WINDOWSNT || CYGWIN */
+
 /* Macros for backward compatibility.  */
 
 #define decode_coding_region(coding, from, to)         \
@@ -751,7 +767,7 @@ extern Lisp_Object Qcoding_system_p;
 extern Lisp_Object Qraw_text, Qemacs_mule, Qno_conversion, Qundecided;
 extern Lisp_Object Qbuffer_file_coding_system;
 
-extern Lisp_Object Qunix, Qdos, Qmac;
+extern Lisp_Object Qunix, Qdos;
 
 extern Lisp_Object Qtranslation_table;
 extern Lisp_Object Qtranslation_table_id;