coding.c (complement_process_encoding_system): Fix previous change.

1 files changed, 29 insertions, 25 deletions

diff --git a/src/coding.c b/src/coding.c
index e2819f62e55..4b52c838d67 100644
--- a/src/coding.c
+++ b/src/coding.c
@@ -6122,51 +6122,55 @@ Lisp_Object
 complement_process_encoding_system (coding_system)
      Lisp_Object coding_system;
 {
-  Lisp_Object spec, attrs, coding_type, eol_type;
+  Lisp_Object coding_base = Qnil, eol_base = Qnil;
+  Lisp_Object spec, attrs;
 
   if (NILP (coding_system))
     coding_system = Qundecided;
   spec = CODING_SYSTEM_SPEC (coding_system);
   attrs = AREF (spec, 0);
-  coding_type = CODING_ATTR_TYPE (attrs);
-  eol_type = AREF (spec, 2);
+  if (! EQ (CODING_ATTR_TYPE (attrs), Qundecided))
+    coding_base = CODING_ATTR_BASE_NAME (attrs);
+  if (! VECTORP (AREF (spec, 2)))
+    eol_base = coding_system;
 
-  if (EQ (coding_type, Qundecided))
+  if (NILP (coding_base))
     {
       /* We must decide the text-conversion part ar first.  */
-      if (CONSP (Vdefault_process_coding_system))
+      if (CONSP (Vdefault_process_coding_system)
+          && ! NILP (XCDR (Vdefault_process_coding_system)))
         {
           coding_system = XCDR (Vdefault_process_coding_system);
-          if (! NILP (coding_system))
-            {
-              spec = CODING_SYSTEM_SPEC (coding_system);
-              attrs = AREF (spec, 0);
-              coding_type = CODING_ATTR_TYPE (attrs);
-              eol_type = AREF (spec, 2);
-            }
+          spec = CODING_SYSTEM_SPEC (coding_system);
+          attrs = AREF (spec, 0);
+          if (! EQ (CODING_ATTR_TYPE (attrs), Qundecided))
+            coding_base = CODING_ATTR_BASE_NAME (attrs);
+          if (NILP (eol_base) && ! VECTORP (AREF (spec, 2)))
+            eol_base = coding_system;
         }
-      if (EQ (coding_type, Qundecided))
+      if (NILP (coding_base))
         {
           coding_system = preferred_coding_system ();
           spec = CODING_SYSTEM_SPEC (coding_system);
           attrs = AREF (spec, 0);
-          coding_type = CODING_ATTR_TYPE (attrs);
-          eol_type = AREF (spec, 2);
+          if (! EQ (CODING_ATTR_TYPE (attrs), Qundecided))
+            coding_base = CODING_ATTR_BASE_NAME (attrs);
+          if (NILP (eol_base) && ! VECTORP (AREF (spec, 2)))
+            eol_base = coding_system;
         }
-      if (EQ (coding_type, Qundecided))
+      if (NILP (coding_base))
         {
-          coding_system = Qraw_text;
-          coding_type = Qraw_text;
-          eol_type = Qnil;
+          spec = CODING_SYSTEM_SPEC (Qraw_text);
+          attrs = AREF (spec, 0);
+          if (! EQ (CODING_ATTR_TYPE (attrs), Qundecided))
+            coding_base = CODING_ATTR_BASE_NAME (attrs);
+          if (NILP (eol_base) && ! VECTORP (AREF (spec, 2)))
+            eol_base = coding_system;
         }
     }
-  if (NILP (eol_type) || VECTORP (eol_type))
-    {
-      /* We must decide the eol-conversion part.  */      
-      coding_system = coding_inherit_eol_type (coding_system, coding_system);
-    }
 
-  return coding_system;
+  /* We must decide the eol-conversion part (if not yet done).  */
+  return coding_inherit_eol_type (coding_base, eol_base);
 }