-/*
- translator-scheme.cc -- implement Scheme context functions
-
- source file of the GNU LilyPond music typesetter
-
- (c) 2002--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
-
-#include "translator.hh"
-#include "translator-def.hh"
-
-#include "translator-group.hh"
-#include "lily-guile.hh"
-
-LY_DEFINE(ly_get_context_property,
- "ly:get-context-property", 2, 0, 0,
- (SCM context, SCM name),
- "retrieve the value of @var{name} from context @var{context}")
-{
- Translator *t = unsmob_translator (context);
- Translator_group* tr= dynamic_cast<Translator_group*> (t);
- SCM_ASSERT_TYPE(tr, context, SCM_ARG1, __FUNCTION__, "Translator group");
- SCM_ASSERT_TYPE(gh_symbol_p (name), name, SCM_ARG2, __FUNCTION__, "symbol");
-
- return tr->internal_get_property (name);
-
-}
-
-LY_DEFINE(ly_set_context_property,
- "ly:set-context-property!", 3, 0, 0,
- (SCM context, SCM name, SCM val),
- "set value of property @var{name} in context @var{context} to @var{val}.")
-{
- Translator *t = unsmob_translator (context);
- Translator_group* tr= dynamic_cast<Translator_group*> (t);
-
- SCM_ASSERT_TYPE(tr, context, SCM_ARG1, __FUNCTION__, "Context");
- SCM_ASSERT_TYPE(gh_symbol_p (name), name, SCM_ARG2, __FUNCTION__, "symbol");
-
- tr->internal_set_property (name, val);
-
- return SCM_UNSPECIFIED;
-}
-
-
-LY_DEFINE(ly_context_property_where_defined,
- "ly:context-property-where-defined", 2, 0, 0,
- (SCM context, SCM name),
- "Return the context above @var{context} where @var{name} is defined.")
-{
- Translator *t = unsmob_translator (context);
- Translator_group* tr = dynamic_cast<Translator_group*> (t);
- SCM_ASSERT_TYPE(tr, context, SCM_ARG1, __FUNCTION__, "Context");
- SCM_ASSERT_TYPE(gh_symbol_p (name), name, SCM_ARG2, __FUNCTION__, "symbol");
-
-
- tr = tr->where_defined (name);
-
- if (tr)
- return tr->self_scm();
-
- return SCM_EOL;
-}
-
-LY_DEFINE(ly_unset_context_property,
- "ly:unset-context-property", 2, 0, 0,
- (SCM context, SCM name),
- "Unset value of property @var{name} in context @var{context}.")
-{
- Translator *t = unsmob_translator (context);
- Translator_group* tr = dynamic_cast<Translator_group*> (t);
- SCM_ASSERT_TYPE(tr, context, SCM_ARG1, __FUNCTION__, "Context");
- SCM_ASSERT_TYPE(gh_symbol_p (name), name, SCM_ARG2, __FUNCTION__, "symbol");
-
- tr->unset_property (name);
-
- return SCM_UNSPECIFIED;
-}
-
-
-
-LY_DEFINE(ly_context_parent,
- "ly:context-parent", 1, 0, 0,
- (SCM context),
- "Return the parent of @var{context}, #f if none.")
-{
- Translator *t = unsmob_translator (context);
- Translator_group* tr= dynamic_cast<Translator_group*> (t);
-
- SCM_ASSERT_TYPE(tr, context, SCM_ARG1, __FUNCTION__, "Context");
-
- tr = tr->daddy_trans_ ;
- if (tr)
- return tr->self_scm();
- else
- return SCM_BOOL_F;
-}
-
/*
- Todo: should support translator IDs, and creation?
- */
-LY_DEFINE(ly_translator_find,
- "ly:translator-find", 2, 0,0,
- (SCM context, SCM name),
- "Find a parent of @var{context} that has name or alias @var{name}. "
- "Return @code{#f} if not found." )
-{
- Translator_group* tr= dynamic_cast<Translator_group*> ( unsmob_translator (context));
-
- SCM_ASSERT_TYPE(tr, context, SCM_ARG1, __FUNCTION__, "context");
- SCM_ASSERT_TYPE(gh_string_p (name), name, SCM_ARG2, __FUNCTION__, "string");
-
- String s = ly_scm2string (name);
-
- while (tr)
- {
- if (tr->is_alias_b (s))
- return tr->self_scm();
- tr = tr->daddy_trans_ ;
- }
-
- return SCM_BOOL_F;
-}
-
-
-LY_DEFINE(ly_context_properties,
- "ly:context-properties", 1, 0, 0,
- (SCM context),
- "Return all properties of @var{context} in an alist.")
-{
- Translator *t = unsmob_translator (context);
- Translator_group* tr= dynamic_cast<Translator_group*> (t);
-
- SCM_ASSERT_TYPE(tr, context, SCM_ARG1, __FUNCTION__, "Context");
-
- return tr->properties_as_alist ();
-}
-
-
-
-LY_DEFINE(ly_translator_name,
- "ly:translator-name", 1,0,0, (SCM trans),
- "Return the type name of the translator @var{trans}.")
-{
- Translator* tr = unsmob_translator (trans);
- SCM_ASSERT_TYPE(tr, trans, SCM_ARG1, __FUNCTION__, "Context");
-
- char const* nm = classname (tr);
- return scm_makfrom0str (nm);
-}
-
-LY_DEFINE(ly_translator_description,
- "ly:translator-description",
- 1,0,0, (SCM me),
- "Return an alist of properties of translator @var{me}.")
-{
- Translator *tr =unsmob_translator (me);
- SCM_ASSERT_TYPE (tr, me, SCM_ARG1, __FUNCTION__, "Context");
-
- return tr->translator_description ();
-}
-
+ This file is part of LilyPond, the GNU music typesetter.
-LY_DEFINE(ly_context_pushpop_property,
- "ly:context-pushpop-property", 3, 1, 0,
- (SCM context, SCM grob, SCM eltprop, SCM val),
- "Do a single @code{\\override} or @code{\\revert} operation "
- "in @var{context}. The grob definition @code{grob} is extended with "
- "@code{eltprop} (if @var{val} is specified) "
- "or reverted (if unspecified).")
-{
- Translator_group *tg = dynamic_cast<Translator_group*> (unsmob_translator (context));
-
- SCM_ASSERT_TYPE(tg, context, SCM_ARG1, __FUNCTION__, "context");
- SCM_ASSERT_TYPE(gh_symbol_p (grob), grob, SCM_ARG2, __FUNCTION__, "symbol");
- SCM_ASSERT_TYPE(gh_symbol_p (eltprop), eltprop, SCM_ARG3, __FUNCTION__, "symbol");
+ Copyright (C) 2002--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
- tg->execute_pushpop_property (grob, eltprop, val);
+ 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.
- return SCM_UNDEFINED;
-}
+ 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.
-LY_DEFINE(ly_context_p,
- "ly:context?", 1, 0, 0,
- (SCM x),
- "Type predicate: is @var{x} a context?")
-{
- Translator_group *tg = dynamic_cast<Translator_group*> (unsmob_translator (x));
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
+*/
- return SCM_BOOL (tg);
-}
-
+#include "context.hh"
+#include "context-def.hh"
+#include "translator-group.hh"
+#include "moment.hh"
-int
-Translator::print_smob (SCM s, SCM port, scm_print_state *)
+LY_DEFINE (ly_translator_context, "ly:translator-context",
+ 1, 0, 0, (SCM trans),
+ "Return the context of the translator object @var{trans}.")
{
- Translator *sc = (Translator *) ly_cdr (s);
-
- scm_puts ("#<Translator ", port);
- if (Translator_def *d=unsmob_translator_def (sc->definition_))
- {
- scm_display (d->type_name_, port);
- }
- else
- scm_display (ly_translator_name (s), port);
+ LY_ASSERT_SMOB (Translator, trans, 1);
+ Translator *tr = unsmob<Translator> (trans);
- scm_display (sc->simple_trans_list_, port);
-
- /*
- don't try to print properties, that is too much hassle.
- */
- scm_puts (" >", port);
-
- return 1;
+ Context *c = tr->context ();
+ return c ? c->self_scm () : SCM_BOOL_F;
}
-
projects / lilypond.git / blobdiff