/*
- context-property.cc -- implement manipulation of immutable Grob
- property lists.
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 2004--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
- (c) 2004--2009 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/>.
*/
#include "context.hh"
}
sloppy_general_pushpop_property (context, context_property,
- grob_property_path, new_value);
+ grob_property_path, new_value);
}
alist defined in a parent context. BASED-ON should always be a tail
of ALIST.
- Push or pop (depending on value of VAL) a single entry entry from a
+ Push or pop (depending on value of VAL) a single entry from a
translator property list by name of PROP. GROB_PROPERTY_PATH
indicates nested alists, eg. '(beamed-stem-lengths details)
-
+
*/
void
execute_override_property (Context *context,
SCM new_value)
{
SCM current_context_val = SCM_EOL;
-
+
Context *where = context->where_defined (context_property,
¤t_context_val);
SCM target_alist = scm_car (current_context_val);
+ /*
+ If the car is a list, the property path comes from a nested override
+ using list syntax inside a \context block
+ */
+ if (scm_is_pair (scm_car (grob_property_path)))
+ grob_property_path = scm_car (grob_property_path);
+
SCM symbol = scm_car (grob_property_path);
if (scm_is_pair (scm_cdr (grob_property_path)))
{
- new_value = nested_property_alist (ly_assoc_get (symbol, target_alist,
+ new_value = nested_property_alist (ly_assoc_get (symbol, target_alist,
SCM_EOL),
scm_cdr (grob_property_path),
new_value);
programming_error ("Grob property path should be list of symbols.");
return;
}
-
+
SCM symbol = scm_car (grob_property_path);
if (scm_is_pair (scm_cdr (grob_property_path)))
{
SCM new_val
= nested_property_revert_alist (current_sub_alist,
scm_cdr (grob_property_path));
-
+
if (scm_is_pair (current_alist)
&& scm_caar (current_alist) == symbol
&& current_alist != daddy)
else
{
SCM new_alist = evict_from_alist (symbol, current_alist, daddy);
-
+
if (new_alist == daddy)
context->unset_property (context_property);
else
scm_list_1 (grob_property),
new_value);
}
-
+
/*
PRE_INIT_OPS is in the order specified, and hence must be reversed.
*/