source file of the GNU LilyPond music typesetter
- (c) 2004--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ (c) 2004--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
#include "music-function.hh"
return 1;
}
-LY_DEFINE (ly_make_music_function, "ly:make-music-function", 2, 0, 0,
- (SCM signature, SCM func),
- "Make a function to process music, to be used for the "
- "parser. @code{func} is the function, and @code{signature} describes "
- "Its arguments. @code{signature} is a list containing either "
- "@code{ly:music?} predicates or other type predicates.")
-{
- String str = "";
- for (SCM s = signature; scm_is_pair (s); s = scm_cdr (s))
- {
- if (str != "")
- str += "-";
-
- if (scm_car (s) == Music_type_p_proc)
- str += "music";
- else if (scm_car (s) == ly_lily_module_constant ("markup?"))
- str += "markup";
- else if (ly_is_procedure (scm_car (s)))
- str += "scm";
- }
- if (str == "") str = "noarg";
- scm_set_object_property_x (func, ly_symbol2scm ("music-function-signature"),
- signature);
-
- scm_set_object_property_x (func, ly_symbol2scm ("music-function-signature-keyword"),
- ly_symbol2scm (str.c_str ()));
-
- SCM_RETURN_NEWSMOB (music_function_tag, func);
-}
-
bool
is_music_function (SCM music_function)
{
scm_set_smob_print (music_function_tag, print_music_function);
}
+SCM
+make_music_function (SCM signature, SCM func)
+{
+ scm_set_object_property_x (func, ly_symbol2scm ("music-function-signature"),
+ signature);
+
+ SCM_RETURN_NEWSMOB (music_function_tag, func);
+}
+
ADD_SCM_INIT_FUNC (music_function_tag, init_music_function);
+