2 translator-def.cc -- implement Translator_def
4 source file of the GNU LilyPond music typesetter
6 (c) 2000--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
10 #include "lily-proto.hh"
11 #include "translator-def.hh"
12 #include "translator-group.hh"
14 #include "music-output-def.hh"
15 #include "ly-smobs.icc"
18 Translator_def::print_smob (SCM smob, SCM port, scm_print_state*)
20 Translator_def* me = (Translator_def*) SCM_CELL_WORD_1 (smob);
22 scm_puts ("#<Translator_def ", port);
23 scm_display (me->type_name_, port);
30 Translator_def::mark_smob (SCM smob)
32 Translator_def* me = (Translator_def*) SCM_CELL_WORD_1 (smob);
34 scm_gc_mark (me->description_);
35 scm_gc_mark (me->type_aliases_);
36 scm_gc_mark (me->consists_name_list_);
37 scm_gc_mark (me->accepts_name_list_);
38 scm_gc_mark (me->end_consists_name_list_);
39 scm_gc_mark (me->property_ops_);
40 scm_gc_mark (me->translator_group_type_);
41 return me->type_name_;
45 Translator_def::Translator_def ()
47 type_aliases_ = SCM_EOL;
48 translator_group_type_ = SCM_EOL;
49 accepts_name_list_ = SCM_EOL;
50 consists_name_list_ = SCM_EOL;
51 end_consists_name_list_ = SCM_EOL;
52 property_ops_ = SCM_EOL;
54 description_ = SCM_EOL;
60 Translator_def::~Translator_def ()
64 Translator_def::Translator_def (Translator_def const & s)
67 type_aliases_ = SCM_EOL;
68 translator_group_type_ = SCM_EOL;
69 accepts_name_list_ = SCM_EOL;
70 consists_name_list_ = SCM_EOL;
71 end_consists_name_list_ = SCM_EOL;
72 property_ops_ = SCM_EOL;
74 description_ = SCM_EOL;
77 description_ = s.description_;
79 consists_name_list_ = scm_list_copy (s.consists_name_list_);
80 end_consists_name_list_ = scm_list_copy (s.end_consists_name_list_);
81 accepts_name_list_ = scm_list_copy (s.accepts_name_list_);
82 property_ops_ = scm_list_copy (s.property_ops_);
83 type_aliases_ = scm_list_copy (s.type_aliases_);
84 translator_group_type_ = s.translator_group_type_;
85 type_name_ = s.type_name_;
91 Translator_def::set_acceptor (SCM name, bool add)
93 assert (gh_symbol_p (name));
95 this->accepts_name_list_ = gh_cons (name, this->accepts_name_list_);
97 this->accepts_name_list_ = scm_delete_x (name, this->accepts_name_list_);
102 Translator_def::modify_definition (SCM list, SCM str, bool add)
104 String s = ly_scm2string (str);
105 if (!get_translator (s))
106 error (_ ("Program has no such type"));
110 if (scm_memq (str, list) != SCM_BOOL_F)
112 warning (_f ("Already contains: `%s'", s));
113 warning (_f ("Not adding translator: `%s'", s));
116 list= gh_cons (str, list);
120 list = scm_delete_x (str, list);
128 Translator_def::remove_element (SCM s)
130 this->end_consists_name_list_ = modify_definition (this->end_consists_name_list_, s, false);
131 this->consists_name_list_ = modify_definition (this->consists_name_list_, s, false);
135 Translator_def::add_element (SCM s)
137 this->consists_name_list_ = modify_definition (this->consists_name_list_, s, true);
141 Translator_def::add_last_element (SCM s)
143 this->end_consists_name_list_ = modify_definition (this->end_consists_name_list_, s, true);
146 Translator_def::add_push_property (SCM props, SCM syms, SCM vals)
148 this->property_ops_ = gh_cons (scm_list_n (ly_symbol2scm ("push"), props, syms, vals, SCM_UNDEFINED),
149 this->property_ops_);
153 Translator_def::add_pop_property (SCM props, SCM syms)
155 this->property_ops_ = gh_cons (scm_list_n (ly_symbol2scm ("push"), props, syms, SCM_UNDEFINED),
156 this->property_ops_);
162 Link_array<Translator_def>
163 Translator_def::path_to_acceptable_translator (SCM type_sym, Music_output_def* odef) const
165 assert (gh_symbol_p (type_sym));
167 Link_array<Translator_def> accepteds;
168 for (SCM s = accepts_name_list_; gh_pair_p (s); s = ly_cdr (s))
170 Translator_def *t = unsmob_translator_def (odef->find_translator (ly_car (s)));
176 Link_array<Translator_def> best_result;
177 for (int i=0; i < accepteds.size (); i++)
181 don't check aliases, because \context Staff should not create RhythmicStaff.
183 if (gh_equal_p (accepteds[i]->type_name_, type_sym))
185 best_result.push (accepteds[i]);
190 int best_depth= INT_MAX;
191 for (int i=0; i < accepteds.size (); i++)
193 Translator_def * g = accepteds[i];
195 Link_array<Translator_def> result
196 = g->path_to_acceptable_translator (type_sym, odef);
197 if (result.size () && result.size () < best_depth)
200 best_result = result;
203 this following line was added in 1.9.3, but hsould've been
204 there all along... Let's hope it doesn't cause nightmares.
206 best_depth = result.size();
213 IMPLEMENT_SMOBS (Translator_def);
214 IMPLEMENT_DEFAULT_EQUAL_P (Translator_def);
218 trans_list (SCM namelist, Translator_group*tg)
221 for (SCM s = namelist; gh_pair_p (s) ; s = ly_cdr (s))
223 Translator * t = get_translator (ly_scm2string (ly_car (s)));
225 warning (_f ("can't find: `%s'", s));
228 Translator * tr = t->clone ();
229 SCM str = tr->self_scm ();
230 l = gh_cons (str, l);
232 tr->daddy_trans_ = tg;
233 tr->output_def_ = tg->output_def_;
235 scm_gc_unprotect_object (str);
243 Translator_def::instantiate (Music_output_def* md)
245 Translator * g = get_translator (ly_scm2string (translator_group_type_));
248 Translator_group *tg = dynamic_cast<Translator_group*> (g);
249 tg->output_def_ = md;
250 tg->definition_ = self_scm ();
253 TODO: ugh. we're reversing CONSISTS_NAME_LIST_ here
255 SCM l1 = trans_list (consists_name_list_, tg);
256 SCM l2 =trans_list (end_consists_name_list_,tg);
257 l1 = scm_reverse_x (l1, l2);
259 tg->simple_trans_list_ = l1;
266 Translator_def::apply_property_operations (Translator_group*tg)
268 SCM correct_order = scm_reverse (property_ops_); // pity of the mem.
269 for (SCM s = correct_order; gh_pair_p (s); s = ly_cdr (s))
271 SCM entry = ly_car (s);
272 SCM type = ly_car (entry);
273 entry = ly_cdr (entry);
275 if (type == ly_symbol2scm ("push"))
277 SCM val = ly_cddr (entry);
278 val = gh_pair_p (val) ? ly_car (val) : SCM_UNDEFINED;
280 tg->execute_pushpop_property (ly_car (entry), ly_cadr (entry), val);
282 else if (type == ly_symbol2scm ("assign"))
284 tg->internal_set_property (ly_car (entry), ly_cadr (entry));
290 Translator_def::clone_scm () const
292 Translator_def * t = new Translator_def (*this);
293 scm_gc_unprotect_object (t->self_scm());
294 return t->self_scm();
298 Translator_def::make_scm ()
300 Translator_def* t = new Translator_def;
301 scm_gc_unprotect_object (t->self_scm());
302 return t->self_scm();
306 Translator_def::add_property_assign (SCM nm, SCM val)
308 this->property_ops_ = gh_cons (scm_list_n (ly_symbol2scm ("assign"), scm_string_to_symbol (nm), val, SCM_UNDEFINED),
309 this->property_ops_);
313 Default child context as a SCM string, or something else if there is
317 Translator_def::default_child_context_name ()
319 SCM d = accepts_name_list_;
320 return gh_pair_p (d) ? ly_car (scm_last_pair (d)) : SCM_EOL;
324 Translator_def::to_alist () const
328 l = gh_cons (gh_cons (ly_symbol2scm ("consists"), consists_name_list_), l);
329 l = gh_cons (gh_cons (ly_symbol2scm ("description"), description_), l);
330 l = gh_cons (gh_cons (ly_symbol2scm ("aliases"), type_aliases_), l);
331 l = gh_cons (gh_cons (ly_symbol2scm ("end-consists"),
332 end_consists_name_list_), l);
333 l = gh_cons (gh_cons (ly_symbol2scm ("accepts"), accepts_name_list_), l);
334 l = gh_cons (gh_cons (ly_symbol2scm ("property-ops"), property_ops_), l);
339 l = gh_cons (gh_cons (ly_symbol2scm ("type-name"), type_name_), l);
341 l = gh_cons (gh_cons (ly_symbol2scm ("group-type"), translator_group_type_), l);