source file of the LilyPond music typesetter
- (c) 1997--2005 Jan Nieuwenhuizen <janneke@gnu.org>
- Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
+ (c) 1997--2009 Jan Nieuwenhuizen <janneke@gnu.org>
+ Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
#include "duration.hh"
LY_DEFINE (ly_duration_less_p, "ly:duration<?",
2, 0, 0, (SCM p1, SCM p2),
- "Is @var{p1} shorter than @var{p2}?")
+ "Is @var{p1} shorter than @var{p2}?")
{
+ LY_ASSERT_SMOB (Duration, p1, 1);
+ LY_ASSERT_SMOB (Duration, p2, 2);
+
Duration *a = unsmob_duration (p1);
Duration *b = unsmob_duration (p2);
- SCM_ASSERT_TYPE (a, p1, SCM_ARG1, __FUNCTION__, "Duration");
- SCM_ASSERT_TYPE (b, p2, SCM_ARG2, __FUNCTION__, "Duration");
-
if (Duration::compare (*a, *b) < 0)
return SCM_BOOL_T;
else
LY_DEFINE (ly_make_duration, "ly:make-duration",
1, 3, 0, (SCM length, SCM dotcount, SCM num, SCM den),
- "@var{length} is the negative logarithm (base 2) of the duration:\n"
- "1 is a half note, 2 is a quarter note, 3 is an eighth\n"
- "note, etc. The number of dots after the note is given by\n"
- "the optional argument @var{dotcount}.\n"
+ "@var{length} is the negative logarithm (base 2) of the duration:"
+ " 1@tie{}is a half note, 2@tie{}is a quarter note, 3@tie{}is an"
+ " eighth note, etc. The number of dots after the note is given by"
+ " the optional argument @var{dotcount}.\n"
"\n"
- "The duration factor is optionally given by @var{num}\n"
- "and @var{den}.\n\n"
- "A duration is a musical duration, "
- "i.e. a length of time described by a power of two "
- "(whole, half, quarter, etc.) and a number of augmentation\n"
- "dots. \n")
+ "The duration factor is optionally given by @var{num} and"
+ " @var{den}.\n"
+ "\n"
+ "A duration is a musical duration, i.e., a length of time"
+ " described by a power of two (whole, half, quarter, etc.) and a"
+ " number of augmentation dots.")
{
- SCM_ASSERT_TYPE (scm_integer_p (length) == SCM_BOOL_T,
- length, SCM_ARG1, __FUNCTION__, "integer");
+ LY_ASSERT_TYPE (scm_is_integer, length, 1);
int dots = 0;
if (dotcount != SCM_UNDEFINED)
{
- SCM_ASSERT_TYPE (scm_integer_p (dotcount) == SCM_BOOL_T,
- dotcount, SCM_ARG2, __FUNCTION__, "integer");
+ LY_ASSERT_TYPE (scm_is_integer, dotcount, 2);
dots = scm_to_int (dotcount);
}
bool compress = false;
if (num != SCM_UNDEFINED)
{
- SCM_ASSERT_TYPE (scm_is_number (num), length, SCM_ARG3, __FUNCTION__, "integer");
+ LY_ASSERT_TYPE (scm_is_number, num, 3);
compress = true;
}
else
- num = scm_int2num (1);
+ num = scm_from_int (1);
if (den != SCM_UNDEFINED)
{
- SCM_ASSERT_TYPE (scm_is_number (den), length, SCM_ARG4, __FUNCTION__, "integer");
+ LY_ASSERT_TYPE (scm_is_number, den, 4);
compress = true;
}
else
- den = scm_int2num (1);
+ den = scm_from_int (1);
Duration p (scm_to_int (length), dots);
if (compress)
LY_DEFINE (ly_duration_log, "ly:duration-log",
1, 0, 0, (SCM dur),
- "Extract the duration log from @var{dur}")
+ "Extract the duration log from @var{dur}.")
{
- SCM_ASSERT_TYPE (unsmob_duration (dur), dur, SCM_ARG1, __FUNCTION__, "duration");
- return scm_int2num (unsmob_duration (dur)->duration_log ());
+ LY_ASSERT_SMOB (Duration, dur, 1);
+ return scm_from_int (unsmob_duration (dur)->duration_log ());
}
LY_DEFINE (ly_duration_dot_count, "ly:duration-dot-count",
1, 0, 0, (SCM dur),
- "Extract the dot count from @var{dur}")
+ "Extract the dot count from @var{dur}.")
{
- SCM_ASSERT_TYPE (unsmob_duration (dur), dur, SCM_ARG1, __FUNCTION__, "duration");
- return scm_int2num (unsmob_duration (dur)->dot_count ());
+ LY_ASSERT_SMOB (Duration, dur, 1);
+ return scm_from_int (unsmob_duration (dur)->dot_count ());
}
LY_DEFINE (ly_intlog2, "ly:intlog2",
1, 0, 0, (SCM d),
- "The 2-logarithm of 1/@var{d}.")
+ "The 2-logarithm of 1/@var{d}.")
{
- SCM_ASSERT_TYPE (scm_is_number (d), d, SCM_ARG1, __FUNCTION__, "integer");
+ LY_ASSERT_TYPE (scm_is_number, d, 1);
int log = intlog2 (scm_to_int (d));
- return scm_int2num (log);
+ return scm_from_int (log);
+}
+
+LY_DEFINE (ly_duration_length, "ly:duration-length",
+ 1, 0, 0, (SCM dur),
+ "The length of the duration as a @code{moment}.")
+{
+ LY_ASSERT_SMOB (Duration, dur, 1);
+ return Moment (unsmob_duration (dur)->get_length ()).smobbed_copy ();
+}
+
+LY_DEFINE (ly_duration_2_string, "ly:duration->string",
+ 1, 0, 0, (SCM dur),
+ "Convert @var{dur} to a string.")
+{
+ LY_ASSERT_SMOB (Duration, dur, 1);
+ return ly_string2scm (unsmob_duration (dur)->to_string ());
}
LY_DEFINE (ly_duration_factor, "ly:duration-factor",
1, 0, 0, (SCM dur),
- "Extract the compression factor from @var{dur}. Return as a pair.")
+ "Extract the compression factor from @var{dur}."
+ " Return it as a pair.")
{
- SCM_ASSERT_TYPE (unsmob_duration (dur), dur, SCM_ARG1, __FUNCTION__, "duration");
+ LY_ASSERT_SMOB (Duration, dur, 1);
Rational r = unsmob_duration (dur)->factor ();
- return scm_cons (scm_int2num (r.num ()), scm_int2num (r.den ()));
+ return scm_cons (scm_from_int64 (r.num ()), scm_from_int64 (r.den ()));
}