/*
- context-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--2014 Han-Wen Nienhuys <hanwen@xs4all.nl>
- (c) 2000--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ 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 <http://www.gnu.org/licenses/>.
*/
/* TODO: should junk this class an replace by
#include "context-def.hh"
#include "context.hh"
+#include "context-mod.hh"
#include "international.hh"
#include "output-def.hh"
#include "translator.hh"
smobify_self ();
description_ = s.description_;
- input_location_ = make_input (*s.origin ());
+ input_location_ = make_input (*s.origin ());
default_child_ = s.default_child_;
accept_mods_ = s.accept_mods_;
property_ops_ = s.property_ops_;
#include "ly-smobs.icc"
IMPLEMENT_SMOBS (Context_def);
IMPLEMENT_DEFAULT_EQUAL_P (Context_def);
+IMPLEMENT_TYPE_P (Context_def, "ly:context-def?");
int
-Context_def::print_smob (SCM smob, SCM port, scm_print_state*)
+Context_def::print_smob (SCM smob, SCM port, scm_print_state *)
{
Context_def *me = (Context_def *) SCM_CELL_WORD_1 (smob);
scm_puts ("#<Context_def ", port);
scm_display (me->context_name_, port);
+ scm_puts (" ", port);
+ string loc = me->origin ()->location_string ();
+ scm_puts (loc.c_str (), port);
scm_puts (">", port);
return 1;
}
SCM
Context_def::mark_smob (SCM smob)
{
- ASSERT_LIVE_IS_ALLOWED ();
-
+ ASSERT_LIVE_IS_ALLOWED (smob);
+
Context_def *me = (Context_def *) SCM_CELL_WORD_1 (smob);
scm_gc_mark (me->description_);
if (ly_symbol2scm ("default-child") == tag)
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).c_str ()));
- 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)
+ || ly_symbol2scm ("denies") == 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)
+ || ly_symbol2scm ("push") == tag
+ || ly_symbol2scm ("assign") == tag
+ || ly_symbol2scm ("unset") == tag
+ || ly_symbol2scm ("apply") == tag)
property_ops_ = scm_cons (mod, property_ops_);
else if (ly_symbol2scm ("alias") == tag)
context_aliases_ = scm_cons (sym, context_aliases_);
SCM tag = scm_caar (s);
SCM sym = scm_cadar (s);
if (tag == ly_symbol2scm ("accepts"))
- acc = scm_cons (sym, acc);
+ acc = scm_cons (sym, acc);
else if (tag == ly_symbol2scm ("denies"))
- acc = scm_delete_x (sym, acc);
+ 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_delete_x (def, acc);
acc = scm_cons (def, acc);
}
{
SCM entry = scm_car (s);
if (scm_car (entry) == ly_symbol2scm ("default-child"))
- {
- name = scm_cadr (entry);
- break;
- }
+ {
+ name = scm_cadr (entry);
+ break;
+ }
}
return name;
- 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
+ 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
*/
vector<Context_def *>
Context_def::path_to_acceptable_context (SCM type_sym,
- Output_def *odef,
- SCM additional_accepts) const
+ Output_def *odef,
+ SCM additional_accepts) const
{
set<const Context_def *> 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*>
+vector<Context_def *>
Context_def::internal_path_to_acceptable_context (SCM type_sym,
- Output_def *odef,
- SCM additional_accepts,
- set<const Context_def *> *seen) const
+ Output_def *odef,
+ SCM additional_accepts,
+ set<const Context_def *> *seen) const
{
assert (scm_is_symbol (type_sym));
SCM accepted = get_accepted (additional_accepts);
- vector<Context_def*> accepteds;
+ vector<Context_def *> 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))))
+ scm_car (s))))
accepteds.push_back (t);
- vector<Context_def*> best_result;
+ vector<Context_def *> best_result;
for (vsize i = 0; i < accepteds.size (); i++)
{
/* do not check aliases, because \context Staff should not
- create RhythmicStaff. */
+ create RhythmicStaff. */
if (ly_is_equal (accepteds[i]->get_context_name (), type_sym))
- {
- best_result.push_back (accepteds[i]);
- return best_result;
- }
+ {
+ best_result.push_back (accepteds[i]);
+ return best_result;
+ }
}
seen->insert (this);
Context_def *g = accepteds[i];
if (!seen->count (g))
- {
- vector<Context_def*> 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;
- }
- }
+ {
+ vector<Context_def *> 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);
SCM arg = scm_cadar (s);
if (scm_is_string (arg))
- arg = scm_string_to_symbol (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_cons (arg, l1);
+ else if (ly_symbol2scm ("remove") == tag
+ && (scm_is_pair (arg)
+ || ly_is_procedure (arg)
+ || get_translator (arg)))
+ l1 = scm_delete_x (arg, l1);
}
return l1;
context->definition_mods_ = ops;
context->aliases_ = context_aliases_;
context->accepts_list_ = get_accepted (ops);
+ context->default_child_ = get_default_child (ops);
return context;
}
void
Context_def::apply_default_property_operations (Context *tg)
{
- apply_property_operations (tg, property_ops_);
+ apply_property_operations (tg, scm_reverse (property_ops_));
}
SCM
SCM ell = SCM_EOL;
ell = scm_cons (scm_cons (ly_symbol2scm ("consists"),
- get_translator_names (SCM_EOL)), ell);
+ get_translator_names (SCM_EOL)), ell);
ell = scm_cons (scm_cons (ly_symbol2scm ("description"), description_), ell);
ell = scm_cons (scm_cons (ly_symbol2scm ("aliases"), context_aliases_), ell);
ell = scm_cons (scm_cons (ly_symbol2scm ("accepts"), get_accepted (SCM_EOL)),
- ell);
+ ell);
+ if (scm_is_symbol (default_child_))
+ ell = scm_acons (ly_symbol2scm ("default-child"), default_child_, ell);
+ ell = scm_cons (scm_cons (ly_symbol2scm ("accepts"), get_accepted (SCM_EOL)),
+ ell);
ell = scm_cons (scm_cons (ly_symbol2scm ("property-ops"), property_ops_),
- ell);
+ ell);
ell = scm_cons (scm_cons (ly_symbol2scm ("context-name"), context_name_),
- ell);
+ ell);
if (scm_is_symbol (translator_group_type_))
ell = scm_cons (scm_cons (ly_symbol2scm ("group-type"),
- translator_group_type_), ell);
+ translator_group_type_), ell);
return ell;
}
+SCM
+Context_def::lookup (SCM sym) const
+{
+ if (scm_is_eq (ly_symbol2scm ("default-child"), sym))
+ return default_child_;
+ else if (scm_is_eq (ly_symbol2scm ("consists"), sym))
+ return get_translator_names (SCM_EOL);
+ else if (scm_is_eq (ly_symbol2scm ("description"), sym))
+ return description_;
+ else if (scm_is_eq (ly_symbol2scm ("aliases"), sym))
+ return context_aliases_;
+ else if (scm_is_eq (ly_symbol2scm ("accepts"), sym))
+ return get_accepted (SCM_EOL);
+ else if (scm_is_eq (ly_symbol2scm ("property-ops"), sym))
+ return property_ops_;
+ else if (scm_is_eq (ly_symbol2scm ("context-name"), sym))
+ return context_name_;
+ else if (scm_is_eq (ly_symbol2scm ("group-type"), sym))
+ return translator_group_type_;
+ return SCM_UNDEFINED;
+}
+
+bool
+Context_def::is_alias (SCM sym) const
+{
+ if (scm_is_eq (sym, ly_symbol2scm ("Bottom")))
+ return !scm_is_symbol (get_default_child (SCM_EOL));
+
+ if (scm_is_eq (sym, get_context_name ()))
+ return true;
+
+ return scm_is_true (scm_c_memq (sym, context_aliases_));
+}
+
+LY_DEFINE (ly_context_def_lookup, "ly:context-def-lookup",
+ 2, 1, 0, (SCM def, SCM sym, SCM val),
+ "Return the value of @var{sym} in output definition @var{def}"
+ " (e.g., @code{\\paper}). If no value is found, return"
+ " @var{val} or @code{'()} if @var{val} is undefined.")
+{
+ LY_ASSERT_SMOB (Context_def, def, 1);
+ Context_def *cd = unsmob_context_def (def);
+ LY_ASSERT_TYPE (ly_is_symbol, sym, 2);
+
+ SCM res = cd->lookup (sym);
+
+ scm_remember_upto_here_1 (def);
+
+ if (SCM_UNBNDP (res))
+ res = SCM_EOL;
+
+ if (scm_is_null (res) && !SCM_UNBNDP (val))
+ return val;
+
+ return res;
+}
+
+LY_DEFINE (ly_context_def_modify, "ly:context-def-modify",
+ 2, 0, 0, (SCM def, SCM mod),
+ "Return the result of applying the context-mod @var{mod} to"
+ " the context definition @var{def}. Does not change @var{def}.")
+{
+ LY_ASSERT_SMOB (Context_def, def, 1);
+ LY_ASSERT_SMOB (Context_mod, mod, 2);
+
+ Context_def *cd = unsmob_context_def (def)->clone ();
+
+ for (SCM s = unsmob_context_mod (mod)->get_mods ();
+ scm_is_pair (s);
+ s = scm_cdr (s))
+ cd->add_context_mod (scm_car (s));
+
+ return cd->unprotect ();
+}
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