{
Lisp_Object coding_base = Qnil, eol_base = Qnil;
Lisp_Object spec, attrs;
+ int i;
- if (NILP (coding_system))
- coding_system = Qundecided;
- 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 (! VECTORP (AREF (spec, 2)))
- eol_base = coding_system;
-
- if (NILP (coding_base))
+ for (i = 0; i < 3; i++)
{
- /* We must decide the text-conversion part ar first. */
- if (CONSP (Vdefault_process_coding_system)
- && ! NILP (XCDR (Vdefault_process_coding_system)))
- {
- coding_system = XCDR (Vdefault_process_coding_system);
- 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 (NILP (coding_base))
- {
- coding_system = preferred_coding_system ();
- 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 (NILP (coding_base))
- {
- 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 (i == 1)
+ coding_system = CDR_SAFE (Vdefault_process_coding_system);
+ else if (i == 2)
+ coding_system = preferred_coding_system ();
+ spec = CODING_SYSTEM_SPEC (coding_system);
+ if (NILP (spec))
+ continue;
+ attrs = AREF (spec, 0);
+ if (NILP (coding_base) && ! 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 (coding_base) && ! NILP (eol_base))
+ break;
}
- /* We must decide the eol-conversion part (if not yet done). */
- return coding_inherit_eol_type (coding_base, eol_base);
+ if (i > 0)
+ /* The original CODING_SYSTEM didn't specify text-conversion or
+ eol-conversion. Be sure that we return a fully complemented
+ coding system. */
+ coding_system = coding_inherit_eol_type (coding_base, eol_base);
+ return coding_system;
}