Web-ja: update introduction

[lilypond.git] / lily / grob-interface.cc

diff --git a/lily/grob-interface.cc b/lily/grob-interface.cc
index c47937db0f2737ef292f8a5ffba97583a4b5c73e..ea9b81ad9f9dc666e79998901dead9b5f731e814 100644 (file)
--- a/lily/grob-interface.cc
+++ b/lily/grob-interface.cc
@@ -1,9 +1,20 @@
 /*
-  grob-interface.cc -- implement graphic objects interface
+  This file is part of LilyPond, the GNU music typesetter.
 
-  source file of the GNU LilyPond music typesetter
+  Copyright (C) 2002--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
-  (c) 2002--2006 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 "grob-interface.hh"
@@ -16,8 +27,8 @@
 #include "misc.hh"
 
 SCM add_interface (char const *cxx_name,
-                   char const *descr,
-                   char const *vars)
+                   char const *descr,
+                   char const *vars)
 {
   string suffix ("-interface");
   string lispy_name = camel_case_to_lisp_identifier (cxx_name);
@@ -26,10 +37,10 @@ SCM add_interface (char const *cxx_name,
     lispy_name += suffix;
 
   SCM s = ly_symbol2scm (lispy_name.c_str ());
-  SCM d = scm_makfrom0str (descr);
+  SCM d = scm_from_utf8_string (descr);
   SCM l = parse_symbol_list (vars);
 
-  ly_add_interface (s, d, l);
+  internal_add_interface (s, d, l);
 
   return s;
 }
@@ -37,10 +48,10 @@ SCM add_interface (char const *cxx_name,
 void
 check_interfaces_for_property (Grob const *me, SCM sym)
 {
-  if (sym == ly_symbol2scm ("meta"))
+  if (scm_is_eq (sym, ly_symbol2scm ("meta")))
     {
       /*
-       otherwise we get in a nasty recursion loop.
+        otherwise we get in a nasty recursion loop.
       */
       return;
     }
@@ -52,22 +63,22 @@ check_interfaces_for_property (Grob const *me, SCM sym)
   for (; !found && scm_is_pair (ifs); ifs = scm_cdr (ifs))
     {
       SCM iface = scm_hashq_ref (all_ifaces, scm_car (ifs), SCM_BOOL_F);
-      if (iface == SCM_BOOL_F)
-       {
-         string msg = to_string (_f ("Unknown interface `%s'",
-                                     ly_symbol2string (scm_car (ifs)).c_str ()));
-         programming_error (msg);
-         continue;
-       }
+      if (scm_is_false (iface))
+        {
+          string msg = to_string (_f ("Unknown interface `%s'",
+                                      ly_symbol2string (scm_car (ifs)).c_str ()));
+          programming_error (msg);
+          continue;
+        }
 
-      found = found || (scm_c_memq (sym, scm_caddr (iface)) != SCM_BOOL_F);
+      found = found || scm_is_true (scm_c_memq (sym, scm_caddr (iface)));
     }
 
   if (!found)
     {
       string str = to_string (_f ("Grob `%s' has no interface for property `%s'",
-                                 me->name ().c_str (),
-                                 ly_symbol2string (sym).c_str ()));
+                                  me->name ().c_str (),
+                                  ly_symbol2string (sym).c_str ()));
       programming_error (str);
     }
 }