Variable: char-property-alias-alist
char-property-alias-alist is a variable defined in textprop.c.
Value
nil
Documentation
Alist of alternative properties for properties without a value.
Each element should look like (PROPERTY ALTERNATIVE1 ALTERNATIVE2...). If a piece of text has no direct value for a particular property, then this alist is consulted. If that property appears in the alist, then the first non-nil value from the associated alternative properties is returned.
Probably introduced at or before Emacs version 22.1.
Source Code
// Defined in /usr/src/emacs/src/textprop.c
DEFVAR_LISP ("char-property-alias-alist", Vchar_property_alias_alist,
doc: /* Alist of alternative properties for properties without a value.
Each element should look like (PROPERTY ALTERNATIVE1 ALTERNATIVE2...).
If a piece of text has no direct value for a particular property, then
this alist is consulted. If that property appears in the alist, then
the first non-nil value from the associated alternative properties is
returned. */);