X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fgrob-interface.cc;h=ea9b81ad9f9dc666e79998901dead9b5f731e814;hb=97a0169312a260933246ab224e4f8b0969871dd5;hp=9d52d4a56a435f40b0eaacdfa643d00e27b6a872;hpb=31568c504806f35aac420a394c9eab07abd9faa7;p=lilypond.git

diff --git a/lily/grob-interface.cc b/lily/grob-interface.cc
index 9d52d4a56a..ea9b81ad9f 100644
--- 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"
@@ -11,27 +22,36 @@
 #include "grob.hh"
 #include "international.hh"
 #include "protected-scm.hh"
-#include "std-string.hh"
+#include "string-convert.hh"
 #include "warn.hh"
+#include "misc.hh"
 
-void add_interface (char const *symbol,
-		    char const *descr,
-		    char const *vars)
+SCM add_interface (char const *cxx_name,
+                   char const *descr,
+                   char const *vars)
 {
-  SCM s = ly_symbol2scm (symbol);
-  SCM d = scm_makfrom0str (descr);
+  string suffix ("-interface");
+  string lispy_name = camel_case_to_lisp_identifier (cxx_name);
+  vsize end = max (int (0), int (lispy_name.length () - suffix.length ()));
+  if (lispy_name.substr (end) != suffix)
+    lispy_name += suffix;
+
+  SCM s = ly_symbol2scm (lispy_name.c_str ());
+  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;
 }
 
 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;
     }
@@ -43,22 +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);
     }
 }