X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Finclude%2Flily-guile.hh;h=efb283cfc18588262bf6f3fce32839a8baf4724f;hb=45dbb4db1979bd4bd531e0d66690fb8d3144f473;hp=8a0a54a46db0c6094ea80c4cae35780e8471fc0e;hpb=a276a19dc6bd57832db3107f2f2cbb04cb4677b6;p=lilypond.git

diff --git a/lily/include/lily-guile.hh b/lily/include/lily-guile.hh
index 8a0a54a46d..efb283cfc1 100644
--- a/lily/include/lily-guile.hh
+++ b/lily/include/lily-guile.hh
@@ -32,13 +32,10 @@
     A ly_B2A (B b);  */
 
 SCM ly_last (SCM list);
-SCM ly_write2scm (SCM s);
+string ly_scm_write_string (SCM s);
 SCM ly_deep_copy (SCM);
 SCM ly_truncate_list (int k, SCM lst);
 
-SCM ly_to_string (SCM scm);
-SCM ly_to_symbol (SCM scm);
-
 extern SCM global_lily_module;
 
 string gulp_file_to_string (string fn, bool must_exist, int size);
@@ -68,6 +65,7 @@ Drul_array<bool> robust_scm2booldrul (SCM, Drul_array<bool>);
 Interval robust_scm2interval (SCM, Drul_array<Real>);
 Offset robust_scm2offset (SCM, Offset);
 string robust_scm2string (SCM, string);
+Rational robust_scm2rational (SCM, Rational);
 
   
 SCM ly_quote_scm (SCM s);
@@ -82,13 +80,21 @@ SCM alist_to_hashq (SCM);
 SCM ly_alist_vals (SCM alist);
 SCM ly_hash2alist (SCM tab);
 SCM ly_hash_table_keys (SCM tab);
-int procedure_arity (SCM);
 
 SCM ly_assoc_prepend_x (SCM alist, SCM key, SCM val);
+inline bool ly_is_fraction (SCM x) { return SCM_FRACTIONP(x) || scm_is_integer (x); }
+    
 inline bool ly_is_list (SCM x) { return SCM_NFALSEP (scm_list_p (x)); }
+inline bool ly_cheap_is_list (SCM x) { return scm_is_pair (x) || x == SCM_EOL; }
 inline bool ly_is_procedure (SCM x) { return SCM_NFALSEP (scm_procedure_p (x)); }
 inline bool ly_is_port (SCM x) { return SCM_NFALSEP (scm_port_p (x)); }
 
+/*
+  want to take the address of this function; scm_is_symbol() is a
+  macro.
+ */
+inline bool ly_is_symbol (SCM x) { return scm_is_symbol (x); }
+
 inline bool ly_is_equal (SCM x, SCM y)
 {
   return SCM_NFALSEP (scm_equal_p (x, y));