X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fcontext-def.cc;h=37690fd61a096d7c8a21f7fe777924b36393d431;hb=5b4b0d6e9a197e8f9eb085b7c2ad78b8be3e5cfc;hp=5ad09112291d9bf817402794e69a153be5408234;hpb=1d1f85702652995fe2531ed26a2db8756fb3b4ee;p=lilypond.git diff --git a/lily/context-def.cc b/lily/context-def.cc index 5ad0911229..37690fd61a 100644 --- a/lily/context-def.cc +++ b/lily/context-def.cc @@ -1,21 +1,20 @@ -/* - translator-def.cc -- implement Context_def +/* + context-def.cc -- implement Context_def source file of the GNU LilyPond music typesetter - (c) 2000--2004 Han-Wen Nienhuys + (c) 2000--2008 Han-Wen Nienhuys */ /* TODO: should junk this class an replace by a single list of context modifications? */ #include "context-def.hh" -#include "engraver.hh" -#include "lily-proto.hh" + +#include "context.hh" +#include "international.hh" #include "output-def.hh" -#include "performer.hh" -#include "score-context.hh" -#include "translator-group.hh" +#include "translator.hh" #include "warn.hh" Context_def::Context_def () @@ -26,27 +25,38 @@ Context_def::Context_def () translator_mods_ = SCM_EOL; property_ops_ = SCM_EOL; context_name_ = SCM_EOL; + default_child_ = SCM_EOL; description_ = SCM_EOL; + input_location_ = SCM_EOL; smobify_self (); + input_location_ = make_input (Input ()); context_name_ = ly_symbol2scm (""); } -Context_def::Context_def (Context_def const & s) - : Input (s) +Input * +Context_def::origin () const +{ + return unsmob_input (input_location_); +} + +Context_def::Context_def (Context_def const &s) { context_aliases_ = SCM_EOL; translator_group_type_ = SCM_EOL; - accept_mods_ = SCM_EOL; + accept_mods_ = SCM_EOL; translator_mods_ = SCM_EOL; property_ops_ = SCM_EOL; context_name_ = SCM_EOL; description_ = SCM_EOL; - + default_child_ = SCM_EOL; + input_location_ = SCM_EOL; smobify_self (); - description_ = s.description_; + description_ = s.description_; + input_location_ = make_input (*s.origin ()); + default_child_ = s.default_child_; accept_mods_ = s.accept_mods_; property_ops_ = s.property_ops_; translator_mods_ = s.translator_mods_; @@ -66,7 +76,7 @@ IMPLEMENT_DEFAULT_EQUAL_P (Context_def); int Context_def::print_smob (SCM smob, SCM port, scm_print_state*) { - Context_def* me = (Context_def*) SCM_CELL_WORD_1 (smob); + Context_def *me = (Context_def *) SCM_CELL_WORD_1 (smob); scm_puts ("#context_name_, port); @@ -77,14 +87,18 @@ Context_def::print_smob (SCM smob, SCM port, scm_print_state*) SCM Context_def::mark_smob (SCM smob) { - Context_def* me = (Context_def*) SCM_CELL_WORD_1 (smob); + ASSERT_LIVE_IS_ALLOWED (); + + Context_def *me = (Context_def *) SCM_CELL_WORD_1 (smob); scm_gc_mark (me->description_); scm_gc_mark (me->context_aliases_); scm_gc_mark (me->accept_mods_); scm_gc_mark (me->translator_mods_); - scm_gc_mark (me->property_ops_); + scm_gc_mark (me->property_ops_); scm_gc_mark (me->translator_group_type_); + scm_gc_mark (me->default_child_); + scm_gc_mark (me->input_location_); return me->context_name_; } @@ -92,50 +106,48 @@ Context_def::mark_smob (SCM smob) void Context_def::add_context_mod (SCM mod) { - SCM tag = ly_car (mod); + SCM tag = scm_car (mod); if (ly_symbol2scm ("description") == tag) { - description_ = ly_cadr (mod); + description_ = scm_cadr (mod); return; } - SCM sym = ly_cadr (mod); + /* + 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'", - ly_symbol2string (sym).to_str0 ())); + error (_f ("program has no such type: `%s'", + ly_symbol2string (sym).c_str ())); else translator_mods_ = scm_cons (scm_list_2 (tag, sym), translator_mods_); } 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 + accept_mods_ = scm_cons (scm_list_2 (tag, sym), accept_mods_); + else if (ly_symbol2scm ("pop") == tag || ly_symbol2scm ("push") == tag || ly_symbol2scm ("assign") == tag || ly_symbol2scm ("unset") == tag) property_ops_ = scm_cons (mod, property_ops_); else if (ly_symbol2scm ("alias") == tag) context_aliases_ = scm_cons (sym, context_aliases_); - else if (ly_symbol2scm ("translator-type") == tag) + else if (ly_symbol2scm ("translator-type") == tag) translator_group_type_ = sym; - else if (ly_symbol2scm ("context-name") == tag) + else if (ly_symbol2scm ("context-name") == tag) context_name_ = sym; else - programming_error ("Unknown context mod tag."); -} - -SCM -Context_def::get_context_name () const -{ - return context_name_; + programming_error ("unknown context mod tag"); } SCM @@ -143,60 +155,116 @@ Context_def::get_accepted (SCM user_mod) const { SCM mods = scm_reverse_x (scm_list_copy (accept_mods_), user_mod); SCM acc = SCM_EOL; - for (SCM s = mods; ly_c_pair_p (s); s = ly_cdr (s)) + for (SCM s = mods; scm_is_pair (s); s = scm_cdr (s)) { - SCM tag = ly_caar (s); - SCM sym = ly_cadar (s); + SCM tag = scm_caar (s); + SCM sym = scm_cadar (s); if (tag == ly_symbol2scm ("accepts")) acc = scm_cons (sym, acc); 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; } -Link_array -Context_def::path_to_acceptable_context (SCM type_sym, Output_def *odef) const +SCM +Context_def::get_default_child (SCM user_mod) const { - assert (ly_c_symbol_p (type_sym)); - - SCM accepted = get_accepted (SCM_EOL); + 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; +} + +/* + Given a name of a context that we want to create, finds a list of context + definitions such that: + - the first element in the list defines a context that is a valid child of + the context defined by this Context_def + - each subsequent element in the list defines a context that is a valid child + of the the context defined by the preceding element in the list + - the last element in the list defines a context with the given name + + The ADDITIONAL_ACCEPTS parameter is a list of additional contexts that this + specific context def (but not any of the child context defs) should accept. +*/ +vector +Context_def::path_to_acceptable_context (SCM type_sym, + Output_def *odef, + SCM additional_accepts) const +{ + set seen; + return internal_path_to_acceptable_context (type_sym, odef, additional_accepts, &seen); +} + +/* +The SEEN parameter is a set which keeps track of visited contexts, allowing +contexts of the same type to be nested. +*/ +vector +Context_def::internal_path_to_acceptable_context (SCM type_sym, + Output_def *odef, + SCM additional_accepts, + set *seen) const +{ + assert (scm_is_symbol (type_sym)); + + SCM accepted = get_accepted (additional_accepts); - Link_array accepteds; - for (SCM s = accepted; ly_c_pair_p (s); s = ly_cdr (s)) + vector accepteds; + for (SCM s = accepted; scm_is_pair (s); s = scm_cdr (s)) if (Context_def *t = unsmob_context_def (find_context_def (odef, - ly_car (s)))) - accepteds.push (t); + scm_car (s)))) + accepteds.push_back (t); - Link_array best_result; - for (int i=0; i < accepteds.size (); i++) + vector best_result; + for (vsize i = 0; i < accepteds.size (); i++) { /* 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]); + best_result.push_back (accepteds[i]); return best_result; } } - int best_depth= INT_MAX; - for (int i=0; i < accepteds.size (); i++) + seen->insert (this); + vsize best_depth = INT_MAX; + for (vsize i = 0; i < accepteds.size (); i++) { - Context_def * g = accepteds[i]; + Context_def *g = accepteds[i]; - Link_array result - = g->path_to_acceptable_context (type_sym, odef); - if (result.size () && result.size () < best_depth) + if (!seen->count (g)) { - 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 (); + vector result + = g->internal_path_to_acceptable_context (type_sym, odef, SCM_EOL, seen); + if (result.size () && result.size () < best_depth) + { + best_depth = result.size (); + result.insert (result.begin (), g); + best_result = result; + } } } + seen->erase (this); return best_result; } @@ -207,139 +275,42 @@ Context_def::get_translator_names (SCM user_mod) const SCM l1 = SCM_EOL; SCM mods = scm_reverse_x (scm_list_copy (translator_mods_), user_mod); - - for (SCM s = mods; ly_c_pair_p (s); s = ly_cdr (s)) + + for (SCM s = mods; scm_is_pair (s); s = scm_cdr (s)) { - SCM tag = ly_caar (s); - SCM arg = ly_cadar (s); + SCM tag = scm_caar (s); + SCM arg = scm_cadar (s); if (scm_is_string (arg)) arg = scm_string_to_symbol (arg); - + 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 ly_c_pair_p (*tail); tail = SCM_CDRLOC (*tail)) - { - if (dynamic_cast (unsmob_translator (ly_car (*tail)))) - { - *tail = ly_cdr (*tail); - if (!ly_c_pair_p (*tail)) - break ; - } - } - return ell; -} - -SCM -filter_engravers (SCM ell) -{ - SCM *tail = ℓ - for (; ly_c_pair_p (*tail) ; tail = SCM_CDRLOC (*tail)) - { - if (dynamic_cast (unsmob_translator (ly_car (*tail)))) - { - *tail = ly_cdr (*tail); - if (!ly_c_pair_p (*tail)) - break ; - } - } - return ell; -} - - Context * Context_def::instantiate (SCM ops) { - Context *tg = 0; - - if (context_name_ == ly_symbol2scm ("Score")) - tg = new Score_context (); - else - tg = new Context (); - - tg->definition_ = self_scm (); - - SCM trans_names = get_translator_names (ops); + Context *context = new Context (); - Translator *g = get_translator (translator_group_type_); - g = g->clone (); + context->definition_ = self_scm (); + context->definition_mods_ = ops; + context->aliases_ = context_aliases_; + context->accepts_list_ = get_accepted (ops); - SCM trans_list = SCM_EOL; - - for (SCM s = trans_names; ly_c_pair_p (s) ; s = ly_cdr (s)) - { - Translator *t = get_translator (ly_car (s)); - if (!t) - warning (_f ("can't find: `%s'", s)); - else - { - Translator *tr = t->clone (); - SCM str = tr->self_scm (); - - if (tr->must_be_last ()) - { - SCM cons = scm_cons (str, SCM_EOL); - if (ly_c_pair_p (trans_list)) - scm_set_cdr_x (scm_last_pair (trans_list), cons); - else - trans_list= cons; - } - else - { - trans_list = scm_cons (str, trans_list); - } - - tr->daddy_context_ = tg; - scm_gc_unprotect_object (str); - } - } - - g->simple_trans_list_ = trans_list; - - tg->implementation_ = g->self_scm (); - if (dynamic_cast (g)) - g->simple_trans_list_ = filter_performers (g->simple_trans_list_); - else if (dynamic_cast (g)) - g->simple_trans_list_ = filter_engravers (g->simple_trans_list_); - - g->daddy_context_ = tg; - tg->aliases_ = context_aliases_ ; - - scm_gc_unprotect_object (g->self_scm ()); - - tg->accepts_list_ = get_accepted (ops); - - return tg; -} - -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 context; } SCM Context_def::make_scm () { - Context_def* t = new Context_def; - SCM x = t->self_scm (); - scm_gc_unprotect_object (x); - return x; + Context_def *t = new Context_def; + return t->unprotect (); } void @@ -364,9 +335,9 @@ Context_def::to_alist () const ell = scm_cons (scm_cons (ly_symbol2scm ("context-name"), context_name_), ell); - if (ly_c_symbol_p (translator_group_type_)) + if (scm_is_symbol (translator_group_type_)) ell = scm_cons (scm_cons (ly_symbol2scm ("group-type"), - translator_group_type_), ell); - return ell; + translator_group_type_), ell); + return ell; }