-/*
- moment.cc -- implement Moment bindings
+/*
+ moment.cc -- implement Moment bindings
source file of the GNU LilyPond music typesetter
- (c) 1999--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1999--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
#include "moment.hh"
-
/* TODO: add optional factor argument. */
LY_DEFINE (ly_make_moment, "ly:make-moment",
2, 2, 0, (SCM n, SCM d, SCM gn, SCM gd),
"\n"
"\n"
"Moment is a point in musical time. "
- "It is consists of a pair of rationals (@var{m},@var{g}), "
+ "It is consists of a pair of rationals (@var{m}, @var{g}), "
"where @var{m} is the timing for the main\n"
"notes, and @var{g} the timing for grace notes. "
"In absence of grace notes, @var{g} is zero.\n")
Rational (grace_num, grace_den)).smobbed_copy ();
}
-LY_DEFINE (ly_add_moment, "ly:add-moment",
+LY_DEFINE (ly_sub_moment, "ly:moment-sub",
+ 2, 0, 0, (SCM a, SCM b),
+ "Subtract two moments.")
+{
+ Moment *ma = unsmob_moment (a);
+ Moment *mb = unsmob_moment (b);
+ SCM_ASSERT_TYPE (ma, a, SCM_ARG1, __FUNCTION__, "moment");
+ SCM_ASSERT_TYPE (mb, b, SCM_ARG2, __FUNCTION__, "moment");
+ return (*ma - *mb).smobbed_copy ();
+}
+
+LY_DEFINE (ly_moment_add, "ly:moment-add",
2, 0, 0, (SCM a, SCM b),
"Add two moments.")
{
return (*ma + *mb).smobbed_copy ();
}
-LY_DEFINE (ly_mul_moment,"ly:mul-moment",
+LY_DEFINE (ly_moment_mul, "ly:moment-mul",
2, 0, 0, (SCM a, SCM b),
"Multiply two moments.")
{
Moment *mb = unsmob_moment (b);
SCM_ASSERT_TYPE (ma, a, SCM_ARG1, __FUNCTION__, "moment");
SCM_ASSERT_TYPE (mb, b, SCM_ARG2, __FUNCTION__, "moment");
- return (*ma * *mb).smobbed_copy ();
+ return (*ma * * mb).smobbed_copy ();
}
-LY_DEFINE (ly_div_moment,"ly:div-moment",
+LY_DEFINE (ly_moment_div, "ly:moment-div",
2, 0, 0, (SCM a, SCM b),
"Divide two moments.")
{
Moment *mb = unsmob_moment (b);
SCM_ASSERT_TYPE (ma, a, SCM_ARG1, __FUNCTION__, "moment");
SCM_ASSERT_TYPE (mb, b, SCM_ARG2, __FUNCTION__, "moment");
- return (*ma / *mb).smobbed_copy ();
+ return (*ma / * mb).smobbed_copy ();
+}
+
+LY_DEFINE (ly_moment_mod, "ly:moment-mod",
+ 2, 0, 0, (SCM a, SCM b),
+ "Modulo of two moments.")
+{
+ Moment *ma = unsmob_moment (a);
+ Moment *mb = unsmob_moment (b);
+ SCM_ASSERT_TYPE (ma, a, SCM_ARG1, __FUNCTION__, "moment");
+ SCM_ASSERT_TYPE (mb, b, SCM_ARG2, __FUNCTION__, "moment");
+ return (*ma % * mb).smobbed_copy ();
}
-LY_DEFINE (ly_moment_main_numerator,"ly:moment-main-numerator",
+LY_DEFINE (ly_moment_grace_numerator, "ly:moment-grace-numerator",
+ 1, 0, 0, (SCM mom),
+ "Extract numerator from grace timing.")
+{
+ Moment *ma = unsmob_moment (mom);
+ SCM_ASSERT_TYPE (ma, mom, SCM_ARG1, __FUNCTION__, "moment");
+
+ return scm_from_int (ma->grace_part_.numerator ());
+}
+
+LY_DEFINE (ly_moment_grace_denominator, "ly:moment-grace-denominator",
+ 1, 0, 0, (SCM mom),
+ "Extract denominator from grace timing.")
+{
+ Moment *ma = unsmob_moment (mom);
+ SCM_ASSERT_TYPE (ma, mom, SCM_ARG1, __FUNCTION__, "moment");
+
+ return scm_from_int (ma->grace_part_.denominator ());
+}
+LY_DEFINE (ly_moment_main_numerator, "ly:moment-main-numerator",
1, 0, 0, (SCM mom),
"Extract numerator from main timing.")
{
Moment *ma = unsmob_moment (mom);
SCM_ASSERT_TYPE (ma, mom, SCM_ARG1, __FUNCTION__, "moment");
- return scm_from_int (ma->main_part_.numerator ());
+ return scm_from_int (ma->main_part_.numerator ());
}
-LY_DEFINE (ly_moment_main_denominator,"ly:moment-main-denominator",
+LY_DEFINE (ly_moment_main_denominator, "ly:moment-main-denominator",
1, 0, 0, (SCM mom),
"Extract denominator from main timing.")
{
Moment *ma = unsmob_moment (mom);
SCM_ASSERT_TYPE (ma, mom, SCM_ARG1, __FUNCTION__, "moment");
- return scm_from_int (ma->main_part_.denominator ());
+ return scm_from_int (ma->main_part_.denominator ());
}
-LY_DEFINE (ly_moment_less_p,"ly:moment<?",
+LY_DEFINE (ly_moment_less_p, "ly:moment<?",
2, 0, 0, (SCM a, SCM b),
"Compare two moments.")
{
Moment *mb = unsmob_moment (b);
SCM_ASSERT_TYPE (ma, a, SCM_ARG1, __FUNCTION__, "moment");
SCM_ASSERT_TYPE (mb, b, SCM_ARG2, __FUNCTION__, "moment");
- return ly_bool2scm (*ma < *mb);
+ return ly_bool2scm (*ma < *mb);
}