release: 1.3.28

[lilypond.git] / lily / lily-guile.cc

diff --git a/lily/lily-guile.cc b/lily/lily-guile.cc
index 2ecad9547a20e99047a504fd8c41d996f606d6b9..0ed09ec2de6e83fd1b810e93a9c7e2ecddb6b2cd 100644 (file)
--- a/lily/lily-guile.cc
+++ b/lily/lily-guile.cc
@@ -3,7 +3,7 @@
 
   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>
 */
@@ -18,6 +18,8 @@
 #include "simple-file-storage.hh"
 #include "file-path.hh"
 #include "debug.hh"
+#include "direction.hh"
+#include "offset.hh"
 
 SCM
 ly_str02scm (char const*c)
@@ -27,10 +29,10 @@ ly_str02scm (char const*c)
 }
 
 SCM
-ly_ch_C_eval_scm (char const*c)
+ly_eval_str (String s)
 {
   // this all really sucks, guile should take char const* arguments!
-  return gh_eval_str ((char*)c);
+  return gh_eval_str ((char*)s.ch_C ());
 }
 
   
@@ -89,41 +91,26 @@ ly_parse_scm (char const* s, int* n)
   return answer;
 }
 
-/*
-  scm_m_quote doesn't use any env, but needs one for a good signature in GUILE.
-*/
-
 SCM
 ly_quote_scm (SCM s)
 {
-  return scm_m_quote (scm_cons2 (SCM_EOL, s, SCM_EOL) ,SCM_EOL); // apparently env arg is ignored.
+  return gh_list (ly_symbol2scm ("quote"), s, SCM_UNDEFINED);
 }
 
-/*
-  See: libguile/symbols.c
 
-  SCM
-  scm_string_to_symbol(s)
-  
-*/
 SCM
-ly_symbol (String name)
+ly_symbol2scm(const char *s)
 {
-  return gh_symbol2scm ((char*)name.ch_C());
+  return gh_symbol2scm ((char *)s);
 }
 
 String
-symbol_to_string (SCM s)
+ly_symbol2string (SCM s)
 {
+  assert (gh_symbol_p (s));
   return String((Byte*)SCM_CHARS (s), (int) SCM_LENGTH(s));
 }
 
-SCM
-ly_set_scm (String name, SCM val)
-{
-  return scm_sysintern ((char*)name.ch_C(), val);
-  
-}
 
 /**
    Read a file, and shove it down GUILE.  GUILE also has file read
@@ -141,13 +128,13 @@ read_lily_scm_file (String fn)
       error (e);
     }
   else
-    *mlog << '[' << s;
+    progress_indication ("[" + s);
 
 
   Simple_file_storage f(s);
   
-  ly_ch_C_eval_scm ((char *) f.ch_C());
-  *mlog << "]" << flush;  
+  ly_eval_str ((char *) f.ch_C());
+  progress_indication ("]");
 }
 
 
@@ -164,11 +151,13 @@ ly_gulp_file (SCM name)
       error (e);
     }
   else
-    *mlog << '[' << s;
+    progress_indication ("[" + s );
 
 
   Simple_file_storage f(s);
-  return ly_str02scm (f.ch_C());
+  SCM result = ly_str02scm (f.ch_C());
+  progress_indication ("]");
+  return result;
 }
 
 void
@@ -181,6 +170,7 @@ ly_display_scm (SCM s)
 String
 ly_scm2string (SCM s)
 {
+  assert (gh_string_p (s));
   int len; 
   char * p = gh_scm2newstr (s , &len);
   
@@ -194,21 +184,19 @@ SCM
 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)
 {
@@ -229,7 +217,7 @@ ly_isdir_p (SCM s)
 }
 
 
-void
+static void
 init_functions ()
 {
   scm_make_gsubr ("ly-warn", 1, 0, 0, (SCM(*)(...))ly_warning);
@@ -262,3 +250,92 @@ unsigned int ly_scm_hash (SCM s)
 {
   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);
+}
+
+
+SCM
+to_scm (int i)
+{
+  return gh_int2scm (i);
+}
+
+/*
+  UGR. junkme.
+ */
+int
+scm_to (SCM s, int* )
+{
+  return gh_number_p (s) ? gh_scm2int (s) : 0;
+}
+
+SCM
+to_scm (Real r)
+{
+  return gh_double2scm (r);
+}
+
+Real
+scm_to (SCM s, Real* )
+{
+  return gh_number_p (s) ? gh_scm2double (s) : 0;
+}
+
+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)));
+}