-/*
-identifier-smob.cc -- implement glue to pass Scheme expressions off as
-identifiers.
-
-source file of the GNU LilyPond music typesetter
+/*
+ identifier-smob.cc -- implement glue to pass Scheme expressions off as
+ identifiers.
-(c) 2002--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ source file of the GNU LilyPond music typesetter
+ (c) 2002--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
+
#include "identifier-smob.hh"
-/*
- C&P from example/box.c
- */
scm_t_bits package_tag;
-/* Print a textual represenation of the smob to a given port. */
static int
-print_box (SCM b, SCM port, scm_print_state *pstate)
+print_box (SCM b, SCM port, scm_print_state *)
{
SCM value = SCM_CELL_OBJECT_1 (b);
return 1;
}
-
/* This defines the primitve `make-box', which returns a new smob of
type `box', initialized to `#f'. */
-LY_DEFINE(package_identifier, "ly:export", 1,0,0, (SCM arg),
- "Export a Scheme object to the parser, so it is treated as an identifier.")
+LY_DEFINE (ly_export, "ly:export",
+ 1, 0, 0, (SCM arg),
+ "Export a Scheme object to the parser"
+ " so it is treated as an identifier.")
{
- /* This macro creates the new objects, stores the value `#f' into it
- and returns it to the caller. */
SCM_RETURN_NEWSMOB (package_tag, arg);
}
-
-/* This is the primitive `box-ref' which returns the object stored in
- the box. */
SCM
-unpack_identifier(SCM box)
+unpack_identifier (SCM box)
{
- if (SCM_IMP(box) || SCM_CELL_TYPE(box) != package_tag)
+ if (SCM_IMP (box) || SCM_CELL_TYPE (box) != package_tag)
return SCM_UNDEFINED;
-
+
return SCM_CELL_OBJECT_1 (box);
}
scm_set_smob_mark (package_tag, scm_markcdr);
scm_set_smob_print (package_tag, print_box);
}
-ADD_SCM_INIT_FUNC(package, init_box_type);
+
+ADD_SCM_INIT_FUNC (package, init_box_type);