return SCM_UNDEFINED;
}
+bool
+Context_def::is_alias (SCM sym) const
+{
+ if (scm_is_eq (sym, ly_symbol2scm ("Bottom")))
+ return !scm_is_pair (get_accepted (SCM_EOL));
+
+ if (scm_is_eq (sym, get_context_name ()))
+ return true;
+
+ return scm_is_true (scm_c_memq (sym, context_aliases_));
+}
+
LY_DEFINE (ly_context_def_lookup, "ly:context-def-lookup",
2, 1, 0, (SCM def, SCM sym, SCM val),
"Return the value of @var{sym} in output definition @var{def}"
SCM get_translator_group_type () const { return translator_group_type_; }
void set_acceptor (SCM accepts, bool add);
SCM lookup (SCM sym) const;
+ bool is_alias (SCM sym) const;
VIRTUAL_COPY_CONSTRUCTOR (Context_def, Context_def);
1, 0, 0, (SCM output_def),
"Return the description of translators in @var{output-def}.")
{
+ LY_ASSERT_SMOB (Output_def, output_def, 1);
+
Output_def *id = unsmob_output_def (output_def);
SCM al = ly_module_2_alist (id->scope_);
return ell;
}
+LY_DEFINE (ly_output_find_context_def, "ly:output-find-context-def",
+ 1, 1, 0, (SCM output_def, SCM context_name),
+ "Return an alist of all context defs (matching @var{context-name}"
+ "if given) in @var{output-def}.")
+{
+ LY_ASSERT_SMOB (Output_def, output_def, 1);
+ if (!SCM_UNBNDP (context_name))
+ LY_ASSERT_TYPE (ly_is_symbol, context_name, 2);
+
+ Output_def *id = unsmob_output_def (output_def);
+
+ SCM al = ly_module_2_alist (id->scope_);
+ SCM ell = SCM_EOL;
+ for (SCM s = al; scm_is_pair (s); s = scm_cdr (s))
+ {
+ SCM p = scm_car (s);
+ Context_def *td = unsmob_context_def (scm_cdr (p));
+ if (td && scm_is_eq (scm_car (p), td->get_context_name ())
+ && (SCM_UNBNDP (context_name) || td->is_alias (context_name)))
+ ell = scm_cons (p, ell);
+ }
+ return ell;
+}
+
+
LY_DEFINE (ly_output_def_p, "ly:output-def?",
1, 0, 0, (SCM def),
"Is @var{def} an output definition?")