Allow markup lists to be composed at run-time

[lilypond.git] / scm / c++.scm

diff --git a/scm/c++.scm b/scm/c++.scm
index 12c38a397f0ac7d4b297c6c3c2dbb463cfc25124..f0c5d3aea9f546980949318d6498d1dcef483ba8 100644 (file)
--- a/scm/c++.scm
+++ b/scm/c++.scm
@@ -62,6 +62,9 @@
 (define-public (number-or-string? x)
   (or (number? x) (string? x)))
 
+(define-public (number-or-markup? x)
+  (or (number? x) (markup? x)))
+
 (define-public (string-or-pair? x)
   (or (string? x) (pair? x)))
 
@@ -74,8 +77,10 @@
 (define-public (cheap-list? x)
   (or (pair? x) (null? x)))
 
-(define-public (list-or-symbol? x)
-  (or (cheap-list? x) (symbol? x)))
+(define-public (symbol-list-or-symbol? x)
+  (if (list? x)
+      (every symbol? x)
+      (symbol? x)))
 
 (define-public (scheme? x) #t)