2 translator-scheme.cc -- implement Scheme context functions
4 source file of the GNU LilyPond music typesetter
6 (c) 2002--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
9 #include "context-def.hh"
10 #include "translator-group.hh"
13 LY_DEFINE (ly_translator_name, "ly:translator-name",
15 "Return the type name of the translator object @var{trans}. "
16 "The name is a symbol.")
18 Translator *tr = unsmob_translator (trans);
19 SCM_ASSERT_TYPE (tr, trans, SCM_ARG1, __FUNCTION__, "Translator");
20 char const *nm = classname (tr);
21 return ly_symbol2scm (nm);
24 LY_DEFINE (ly_translator_now, "ly:translator-now",
26 "Return now-moment of translater TRANS")
28 Translator *tr = unsmob_translator (trans);
29 SCM_ASSERT_TYPE (tr, trans, SCM_ARG1, __FUNCTION__, "Translator");
30 return tr->now_mom ().smobbed_copy ();
33 LY_DEFINE (ly_translator_description, "ly:translator-description",
35 "Return an alist of properties of translator @var{me}.")
37 Translator *tr = unsmob_translator (me);
38 SCM_ASSERT_TYPE (tr, me, SCM_ARG1, __FUNCTION__, "Translator");
39 return tr->translator_description ();
42 LY_DEFINE (ly_translator_property, "ly:translator-property",
43 2, 0, 0, (SCM translator, SCM sym),
44 "Return the value of a value in translator @var{g} of property @var{sym}. "
45 "It will return @code{' ()} (end-of-list) "
46 "if @var{sym} is undefined in @var{g}."
49 Translator *sc = unsmob_translator (translator);
50 SCM_ASSERT_TYPE (sc, translator, SCM_ARG1, __FUNCTION__, "translator");
51 SCM_ASSERT_TYPE (scm_is_symbol (sym), sym, SCM_ARG2, __FUNCTION__, "symbol");
53 return sc->internal_get_property (sym);
57 Translator::print_smob (SCM s, SCM port, scm_print_state *)
59 Translator *me = (Translator *) SCM_CELL_WORD_1 (s);
60 scm_puts ("#<Translator ", port);
61 scm_puts (classname (me), port);
62 scm_puts (" >", port);