/*
- translator-ctors.cc -- implement Translator construction
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 1997--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
- (c) 1997--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
*/
#include "translator.hh"
+
+#include "international.hh"
#include "scm-hash.hh"
#include "warn.hh"
+#include "protected-scm.hh"
/*
should delete these after exit.
*/
-Scheme_hash_table *global_translator_dict=0;
+Protected_scm global_translator_dict;
-LY_DEFINE(get_all_translators,"ly:get-all-translators", 0, 0, 0, (),
- "Return an list of a all translator objects that may be instantiated "
- " during a lilypond run.")
+LY_DEFINE (get_all_translators, "ly:get-all-translators", 0, 0, 0, (),
+ "Return a list of all translator objects that may be"
+ " instantiated.")
{
- SCM l = global_translator_dict ? global_translator_dict->to_alist () : SCM_EOL;
+ Scheme_hash_table *dict = unsmob<Scheme_hash_table> (global_translator_dict);
+ SCM l = dict ? dict->to_alist () : SCM_EOL;
- for (SCM s =l; gh_pair_p (s); s = gh_cdr (s))
- {
- gh_set_car_x (s, gh_cdar (s));
- }
+ for (SCM s = l; scm_is_pair (s); s = scm_cdr (s))
+ scm_set_car_x (s, scm_cdar (s));
return l;
}
void
add_translator (Translator *t)
{
- if (!global_translator_dict)
- global_translator_dict = new Scheme_hash_table;
+ Scheme_hash_table *dict = unsmob<Scheme_hash_table> (global_translator_dict);
+ if (!dict)
+ {
+ global_translator_dict = Scheme_hash_table::make_smob ();
+ dict = unsmob<Scheme_hash_table> (global_translator_dict);
+ }
- SCM k= ly_symbol2scm (classname (t));
- global_translator_dict->set (k, t->self_scm ());
+ SCM k = ly_symbol2scm (t->class_name ());
+ dict->set (k, t->unprotect ());
}
-Translator*
+Translator *
get_translator (SCM sym)
{
SCM v = SCM_BOOL_F;
- if (global_translator_dict)
- global_translator_dict->try_retrieve (sym, &v);
+ Scheme_hash_table *dict = unsmob<Scheme_hash_table> (global_translator_dict);
+ if (dict)
+ dict->try_retrieve (sym, &v);
- if (v == SCM_BOOL_F)
- error (_f ("unknown translator: `%s'", ly_symbol2string (sym).to_str0 ()));
+ if (scm_is_false (v))
+ {
+ warning (_f ("unknown translator: `%s'", ly_symbol2string (sym).c_str ()));
+ return 0;
+ }
- return unsmob_translator (v);
+ return unsmob<Translator> (v);
}
-