X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fcontext-def.cc;h=5c76926746476c5517634d5b8b8fcc21f5fb644e;hb=3aadd90d55f7c838071411ca839307e4500e6ad6;hp=a17eb49954d38e43a249e0be5d2ad48982627d3c;hpb=efb31db9ee31a5e454ec5e421491742ae0e1f2fe;p=lilypond.git diff --git a/lily/context-def.cc b/lily/context-def.cc index a17eb49954..5c76926746 100644 --- a/lily/context-def.cc +++ b/lily/context-def.cc @@ -1,9 +1,20 @@ /* - translator-def.cc -- implement Context_def + This file is part of LilyPond, the GNU music typesetter. - source file of the GNU LilyPond music typesetter + Copyright (C) 2000--2010 Han-Wen Nienhuys - (c) 2000--2005 Han-Wen Nienhuys + 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. + + 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. + + You should have received a copy of the GNU General Public License + along with LilyPond. If not, see . */ /* TODO: should junk this class an replace by @@ -11,11 +22,10 @@ #include "context-def.hh" -#include "engraver.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 () @@ -28,14 +38,21 @@ Context_def::Context_def () 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 (""); } +Input * +Context_def::origin () const +{ + return unsmob_input (input_location_); +} + Context_def::Context_def (Context_def const &s) - : Input (s) { context_aliases_ = SCM_EOL; translator_group_type_ = SCM_EOL; @@ -45,10 +62,11 @@ Context_def::Context_def (Context_def const &s) 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_; @@ -80,6 +98,8 @@ Context_def::print_smob (SCM smob, SCM port, scm_print_state*) SCM Context_def::mark_smob (SCM smob) { + ASSERT_LIVE_IS_ALLOWED (); + Context_def *me = (Context_def *) SCM_CELL_WORD_1 (smob); scm_gc_mark (me->description_); @@ -89,6 +109,7 @@ Context_def::mark_smob (SCM smob) 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_; } @@ -104,31 +125,23 @@ Context_def::add_context_mod (SCM mod) } /* - other modifiers take symbols as argument. + 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 ("default-child") == tag) - { - default_child_ = sym; - } + default_child_ = sym; else if (ly_symbol2scm ("consists") == tag - || ly_symbol2scm ("consists-end") == tag - || ly_symbol2scm ("remove") == tag) + || ly_symbol2scm ("remove") == tag) { - if (!get_translator (sym)) - error (_f ("program has no such type: `%s'", - ly_symbol2string (sym).to_str0 ())); - else - translator_mods_ = scm_cons (scm_list_2 (tag, sym), translator_mods_); + 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 + else if (ly_symbol2scm ("pop") == tag || ly_symbol2scm ("push") == tag || ly_symbol2scm ("assign") == tag || ly_symbol2scm ("unset") == tag) @@ -143,12 +156,6 @@ Context_def::add_context_mod (SCM mod) programming_error ("unknown context mod tag"); } -SCM -Context_def::get_context_name () const -{ - return context_name_; -} - SCM Context_def::get_accepted (SCM user_mod) const { @@ -171,11 +178,10 @@ Context_def::get_accepted (SCM user_mod) const acc = scm_delete_x (def, acc); acc = scm_cons (def, acc); } - + return acc; } - SCM Context_def::get_default_child (SCM user_mod) const { @@ -193,48 +199,78 @@ Context_def::get_default_child (SCM user_mod) const return name; } -Link_array -Context_def::path_to_acceptable_context (SCM type_sym, Output_def *odef) const +/* + 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 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 (SCM_EOL); + SCM accepted = get_accepted (additional_accepts); - Link_array accepteds; + 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, scm_car (s)))) - accepteds.push (t); + 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]; - 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; } @@ -256,134 +292,32 @@ Context_def::get_translator_names (SCM user_mod) const if (ly_symbol2scm ("consists") == tag) l1 = scm_cons (arg, l1); - else if (ly_symbol2scm ("remove") == tag) - { - l1 = scm_delete_x (arg, l1); - } + else if (ly_symbol2scm ("remove") == tag + && get_translator (arg)) + 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)) - { - if (dynamic_cast (unsmob_translator (scm_car (*tail)))) - { - *tail = scm_cdr (*tail); - if (!scm_is_pair (*tail)) - break; - } - } - return ell; -} - -SCM -filter_engravers (SCM ell) -{ - SCM *tail = ℓ - for (; scm_is_pair (*tail); tail = SCM_CDRLOC (*tail)) - { - if (dynamic_cast (unsmob_translator (scm_car (*tail)))) - { - *tail = scm_cdr (*tail); - if (!scm_is_pair (*tail)) - break; - } - } - return ell; -} - Context * -Context_def::instantiate (SCM ops, Object_key const *key) +Context_def::instantiate (SCM ops) { - Context *tg = 0; + Context *context = new Context (); - if (context_name_ == ly_symbol2scm ("Score")) - tg = new Score_context (key); - else - tg = new Context (key); + context->definition_ = self_scm (); + context->definition_mods_ = ops; + context->aliases_ = context_aliases_; + context->accepts_list_ = get_accepted (ops); - tg->definition_ = self_scm (); - - SCM trans_names = get_translator_names (ops); - - Translator_group *g = dynamic_cast - (get_translator (translator_group_type_)); - g = dynamic_cast (g->clone ()); - - SCM trans_list = SCM_EOL; - - for (SCM s = trans_names; scm_is_pair (s); s = scm_cdr (s)) - { - Translator *t = get_translator (scm_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 (scm_is_pair (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); - } - } - - - /* - 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 (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; + return t->unprotect (); } void