source file of the GNU LilyPond music typesetter
- (c) 2000--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 2000--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
/* TODO: should junk this class an replace by
#include "translator-group.hh"
#include "warn.hh"
+#include "engraver-group.hh"
+#include "performer-group.hh"
+
Context_def::Context_def ()
{
context_aliases_ = SCM_EOL;
translator_mods_ = SCM_EOL;
property_ops_ = SCM_EOL;
context_name_ = SCM_EOL;
+ default_child_ = SCM_EOL;
description_ = SCM_EOL;
smobify_self ();
property_ops_ = SCM_EOL;
context_name_ = SCM_EOL;
description_ = SCM_EOL;
+ default_child_ = SCM_EOL;
smobify_self ();
description_ = s.description_;
+ default_child_ = s.default_child_;
accept_mods_ = s.accept_mods_;
property_ops_ = s.property_ops_;
translator_mods_ = s.translator_mods_;
scm_gc_mark (me->translator_mods_);
scm_gc_mark (me->property_ops_);
scm_gc_mark (me->translator_group_type_);
+ scm_gc_mark (me->default_child_);
return me->context_name_;
}
return;
}
+ /*
+ other modifiers take symbols as argument.
+ */
SCM sym = scm_cadr (mod);
if (scm_is_string (sym))
sym = scm_string_to_symbol (sym);
- if (ly_symbol2scm ("consists") == tag
- || ly_symbol2scm ("consists-end") == tag
- || ly_symbol2scm ("remove") == tag)
+ if (ly_symbol2scm ("default-child") == tag)
+ default_child_ = sym;
+ else if (ly_symbol2scm ("consists") == tag
+ || ly_symbol2scm ("consists-end") == tag
+ || ly_symbol2scm ("remove") == tag)
{
if (!get_translator (sym))
error (_f ("program has no such type: `%s'",
else if (ly_symbol2scm ("accepts") == tag
|| ly_symbol2scm ("denies") == tag)
accept_mods_ = scm_cons (scm_list_2 (tag, sym), accept_mods_);
- else if (ly_symbol2scm ("poppush") == tag
- || ly_symbol2scm ("pop") == tag
+ else if (ly_symbol2scm ("pop") == tag
|| ly_symbol2scm ("push") == tag
|| ly_symbol2scm ("assign") == tag
|| ly_symbol2scm ("unset") == tag)
else if (tag == ly_symbol2scm ("denies"))
acc = scm_delete_x (sym, acc);
}
+
+ SCM def = get_default_child (user_mod);
+ if (scm_is_symbol (def))
+ {
+ if (scm_memq (def, acc))
+ acc = scm_delete_x (def, acc);
+ acc = scm_cons (def, acc);
+ }
+
return acc;
}
+SCM
+Context_def::get_default_child (SCM user_mod) const
+{
+ SCM name = default_child_;
+ for (SCM s = user_mod; scm_is_pair (s); s = scm_cdr (s))
+ {
+ SCM entry = scm_car (s);
+ if (scm_car (entry) == ly_symbol2scm ("default-child"))
+ {
+ name = scm_cadr (entry);
+ break;
+ }
+ }
+
+ return name;
+}
+
Link_array<Context_def>
Context_def::path_to_acceptable_context (SCM type_sym, Output_def *odef) const
{
{
/* do not check aliases, because \context Staff should not
create RhythmicStaff. */
- if (ly_c_equal_p (accepteds[i]->get_context_name (), type_sym))
+ if (ly_is_equal (accepteds[i]->get_context_name (), type_sym))
{
best_result.push (accepteds[i]);
return best_result;
= g->path_to_acceptable_context (type_sym, odef);
if (result.size () && result.size () < best_depth)
{
+ best_depth = result.size ();
result.insert (g, 0);
best_result = result;
-
- /* this following line was added in 1.9.3, but hsould've been
- there all along... Let's hope it doesn't cause nightmares. */
- best_depth = result.size ();
}
}
if (ly_symbol2scm ("consists") == tag)
l1 = scm_cons (arg, l1);
else if (ly_symbol2scm ("remove") == tag)
- {
- l1 = scm_delete_x (arg, l1);
- }
+ l1 = scm_delete_x (arg, l1);
}
return l1;
SCM
filter_performers (SCM ell)
{
- for (SCM *tail = ℓ scm_is_pair (*tail); tail = SCM_CDRLOC (*tail))
+ SCM *tail = ℓ
+ for (SCM p = ell; scm_is_pair (p); p = scm_cdr (p))
{
if (dynamic_cast<Performer *> (unsmob_translator (scm_car (*tail))))
- {
- *tail = scm_cdr (*tail);
- if (!scm_is_pair (*tail))
- break;
- }
+ *tail = scm_cdr (*tail);
+ else
+ tail = SCM_CDRLOC (*tail);
}
return ell;
}
filter_engravers (SCM ell)
{
SCM *tail = ℓ
- for (; scm_is_pair (*tail); tail = SCM_CDRLOC (*tail))
+ for (SCM p = ell; scm_is_pair (p); p = scm_cdr (p))
{
if (dynamic_cast<Engraver *> (unsmob_translator (scm_car (*tail))))
- {
- *tail = scm_cdr (*tail);
- if (!scm_is_pair (*tail))
- break;
- }
+ *tail = scm_cdr (*tail);
+ else
+ tail = SCM_CDRLOC (*tail);
}
return ell;
}
Context *
Context_def::instantiate (SCM ops, Object_key const *key)
{
- Context *tg = 0;
+ Context *context = 0;
if (context_name_ == ly_symbol2scm ("Score"))
- tg = new Score_context (key);
+ context = new Score_context (key);
else
- tg = new Context (key);
+ context = new Context (key);
- tg->definition_ = self_scm ();
+ context->definition_ = self_scm ();
SCM trans_names = get_translator_names (ops);
- Translator_group *g = dynamic_cast<Translator_group *>
- (get_translator (translator_group_type_));
- g = dynamic_cast<Translator_group *> (g->clone ());
-
+ Translator_group *g = get_translator_group (translator_group_type_);
SCM trans_list = SCM_EOL;
for (SCM s = trans_names; scm_is_pair (s); s = scm_cdr (s))
trans_list = cons;
}
else
- {
- trans_list = scm_cons (str, trans_list);
- }
+ trans_list = scm_cons (str, trans_list);
- tr->daddy_context_ = tg;
- scm_gc_unprotect_object (str);
+ tr->daddy_context_ = context;
+ tr->unprotect ();
}
}
+ /*
+ Ugh, todo: should just make a private
+ copy of Context_def with the user mods.
+ */
+
g->simple_trans_list_ = trans_list;
- tg->implementation_ = g->self_scm ();
- if (dynamic_cast<Engraver *> (g))
+ context->implementation_ = g;
+ if (dynamic_cast<Engraver_group *> (g))
g->simple_trans_list_ = filter_performers (g->simple_trans_list_);
- else if (dynamic_cast<Performer *> (g))
+ else if (dynamic_cast<Performer_group *> (g))
g->simple_trans_list_ = filter_engravers (g->simple_trans_list_);
- g->daddy_context_ = tg;
- tg->aliases_ = context_aliases_;
+ g->context_ = context;
+ context->aliases_ = context_aliases_;
- scm_gc_unprotect_object (g->self_scm ());
+ g->unprotect ();
- tg->accepts_list_ = get_accepted (ops);
+ context->accepts_list_ = get_accepted (ops);
- return tg;
+ return context;
}
SCM
Context_def::clone_scm () const
{
Context_def *t = new Context_def (*this);
- SCM x = t->self_scm ();
- scm_gc_unprotect_object (x);
- return x;
+ return t->unprotect ();
}
SCM
Context_def::make_scm ()
{
Context_def *t = new Context_def;
- SCM x = t->self_scm ();
- scm_gc_unprotect_object (x);
- return x;
+ return t->unprotect ();
}
void
projects / lilypond.git / blobdiff