source file of the GNU LilyPond music typesetter
- (c) 1998--1999 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 1998--2000 Jan Nieuwenhuizen <janneke@gnu.org>
Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include <stdio.h>
#include <stdlib.h>
+#include <math.h> // isinf
#include "libc-extension.hh"
#include "lily-guile.hh"
#include "simple-file-storage.hh"
#include "file-path.hh"
#include "debug.hh"
+#include "direction.hh"
+#include "offset.hh"
SCM
ly_str02scm (char const*c)
return gh_str02scm ((char*)c);
}
+
+#if 0
+/*
+ this all really sucks, LilyPond should not communicate with GUILE using strings.
+ */
SCM
-ly_eval_str (char const*c)
-{
- // this all really sucks, guile should take char const* arguments!
- return gh_eval_str ((char*)c);
-}
+ly_eval_str (String s);
+#endif
/*
return answer;
}
-/*
- scm_m_quote doesn't use any env, but needs one for a good signature in GUILE.
-*/
-// apparently env arg is ignored.
SCM
ly_quote_scm (SCM s)
{
- return scm_m_quote (scm_cons2 (SCM_EOL, s, SCM_EOL) ,SCM_EOL);
+ return gh_list (ly_symbol2scm ("quote"), s, SCM_UNDEFINED);
}
String
ly_symbol2string (SCM s)
{
+ assert (gh_symbol_p (s));
return String((Byte*)SCM_CHARS (s), (int) SCM_LENGTH(s));
}
-#if 0
-SCM
-ly_set_x (String name, SCM val)
-{
- return scm_sysintern ((char*)name.ch_C(), val);
-
-}
-#endif
/**
Read a file, and shove it down GUILE. GUILE also has file read
String s = global_path.find (fn);
if (s == "")
{
- String e = _f ("Can't find file: `%s'", fn);
+ String e = _f ("can't find file: `%s'", fn);
e += " ";
e += _f ("(load path: `%s')", global_path.str ());
error (e);
}
else
- *mlog << '[' << s;
+ progress_indication ("[" + s);
Simple_file_storage f(s);
- ly_eval_str ((char *) f.ch_C());
- *mlog << "]" << flush;
+ gh_eval_str ((char *) f.ch_C());
+ progress_indication ("]");
}
String s = global_path.find (fn);
if (s == "")
{
- String e = _f ("Can't find file: `%s'", fn);
+ String e = _f ("can't find file: `%s'", fn);
e += " ";
e += _f ("(load path: `%s')", global_path.str ());
error (e);
}
else
- *mlog << '[' << s;
+ progress_indication ("[" + s );
Simple_file_storage f(s);
SCM result = ly_str02scm (f.ch_C());
- *mlog << "]";
+ progress_indication ("]");
return result;
}
String
ly_scm2string (SCM s)
{
+ assert (gh_string_p (s));
int len;
char * p = gh_scm2newstr (s , &len);
index_cell (SCM s, Direction d)
{
assert (d);
- return (d == LEFT) ? SCM_CAR (s) : SCM_CDR (s);
+ return (d == LEFT) ? gh_car (s) : gh_cdr (s);
}
-
SCM
-array_to_list (SCM *a , int l)
+index_set_cell (SCM s, Direction d, SCM v)
{
- SCM list = SCM_EOL;
- for (int i= l; i--; )
- {
- list = gh_cons (a[i], list);
- }
- return list;
+ if (d == LEFT)
+ gh_set_car_x (s, v);
+ else if (d == RIGHT)
+ gh_set_cdr_x (s, v);
+ return s;
}
-
+
SCM
ly_warning (SCM str)
{
}
-void
-init_functions ()
-{
- scm_make_gsubr ("ly-warn", 1, 0, 0, (SCM(*)(...))ly_warning);
- scm_make_gsubr ("ly-gulp-file", 1,0, 0, (SCM(*)(...))ly_gulp_file);
- scm_make_gsubr ("dir?", 1,0, 0, (SCM(*)(...))ly_isdir_p);
-}
-
-ADD_SCM_INIT_FUNC(funcs, init_functions);
-
typedef void (*Void_fptr)();
Array<Void_fptr> *scm_init_funcs_;
{
return scm_ihashv (s, ~1u);
}
+
+
+
+bool
+isdir_b (SCM s)
+{
+ if (gh_number_p (s))
+ {
+ int i = gh_scm2int (s);
+ return i>= -1 && i <= 1;
+ }
+ return false;
+}
+
+Direction
+to_dir (SCM s)
+{
+ return (Direction) gh_scm2int (s);
+}
+
+
+
+
+bool
+to_boolean (SCM s)
+{
+ return gh_boolean_p (s) && gh_scm2bool (s);
+}
+
+/*
+ Appendable list L: the cdr contains the list, the car the last cons
+ in the list.
+ */
+SCM
+appendable_list ()
+{
+ SCM s = gh_cons (SCM_EOL, SCM_EOL);
+ gh_set_car_x (s, s);
+
+ return s;
+}
+
+void
+appendable_list_append (SCM l, SCM elt)
+{
+ SCM newcons = gh_cons (elt, SCM_EOL);
+
+ gh_set_cdr_x (gh_car (l), newcons);
+ gh_set_car_x (l, newcons);
+}
+
+
+SCM
+ly_offset2scm (Offset o)
+{
+ return gh_cons (gh_double2scm (o[X_AXIS]), gh_double2scm(o[Y_AXIS]));
+}
+
+Offset
+ly_scm2offset (SCM s)
+{
+ return Offset (gh_scm2double (gh_car (s)),
+ gh_scm2double (gh_cdr (s)));
+}
+
+SCM
+ly_type (SCM exp)
+{
+ char const * cp = "unknown";
+ if (gh_number_p (exp))
+ {
+ cp = "number";
+ }
+ else if (gh_string_p (exp))
+ {
+ cp = "string";
+ }
+ else if (gh_procedure_p (exp))
+ {
+ cp = "procedure";
+ }
+ else if (gh_boolean_p (exp))
+ {
+ cp = "boolean";
+ }
+ else if (gh_pair_p (exp))
+ {
+ cp = "list";
+ }
+
+ return ly_str02scm (cp);
+}
+
+/*
+ convert without too many decimals, and leave a space at the end.
+ */
+
+
+SCM
+ly_number2string (SCM s)
+{
+ assert (gh_number_p (s));
+
+ char str[100]; // ugh.
+
+ if (scm_integer_p (s))
+ {
+ Real r (gh_scm2double (s));
+
+ if (isinf (r) || isnan (r))
+ {
+ programming_error ("Infinity or NaN encountered while converting Real number; setting to zero.");
+ r = 0.0;
+ }
+
+ sprintf (str, "%8.4f ", r);
+ }
+ else
+ {
+ sprintf (str, "%d ", gh_scm2int (s));
+ }
+
+ return gh_str02scm (str);
+}
+
+// #define TEST_GC
+
+#ifdef TEST_GC
+#include <libguile/gc.h>
+
+static void *
+greet_sweep (void *dummy1, void *dummy2, void *dummy3)
+{
+ fprintf(stderr, "entering sweep\n");
+}
+
+static void *
+wave_sweep_goodbye (void *dummy1, void *dummy2, void *dummy3)
+{
+ fprintf(stderr, "leaving sweep\n");
+}
+#endif
+
+static void
+init_functions ()
+{
+ scm_make_gsubr ("ly-warn", 1, 0, 0, (SCM(*)(...))ly_warning);
+ scm_make_gsubr ("ly-gulp-file", 1,0, 0, (SCM(*)(...))ly_gulp_file);
+ scm_make_gsubr ("dir?", 1,0, 0, (SCM(*)(...))ly_isdir_p);
+ scm_make_gsubr ("ly-number->string", 1, 0,0, (SCM(*)(...)) ly_number2string);
+
+
+#ifdef TEST_GC
+ scm_c_hook_add (&scm_before_mark_c_hook, greet_sweep, 0, 0);
+ scm_c_hook_add (&scm_before_sweep_c_hook, wave_sweep_goodbye, 0, 0);
+#endif
+
+}
+
+ADD_SCM_INIT_FUNC(funcs, init_functions);
projects / lilypond.git / blobdiff