From: David Kastrup <dak@gnu.org>
Date: Wed, 26 Sep 2012 12:49:52 +0000 (+0200)
Subject: Add string-or-music? predicate
X-Git-Tag: release/2.17.4-1~9
X-Git-Url: https://git.donarmstrong.com/?a=commitdiff_plain;h=d9329d2828a1f271932175b6f0dab82eb29e1f5d;p=lilypond.git

Add string-or-music? predicate
---

diff --git a/scm/c++.scm b/scm/c++.scm
index ded5e9b120..444a3e9ba6 100644
--- a/scm/c++.scm
+++ b/scm/c++.scm
@@ -57,6 +57,9 @@
 (define-public (string-or-pair? x)
   (or (string? x) (pair? x)))
 
+(define-public (string-or-music? x)
+  (or (string? x) (ly:music? x)))
+
 (define-public (number-or-pair? x)
   (or (number? x) (pair? x)))
 
diff --git a/scm/lily.scm b/scm/lily.scm
index 9bc04dbddf..3ee924a1b1 100644
--- a/scm/lily.scm
+++ b/scm/lily.scm
@@ -505,6 +505,7 @@ messages into errors.")
     (,rhythmic-location? . "rhythmic location")
     (,scheme? . "any type")
     (,string-or-pair? . "string or pair")
+    (,string-or-music? . "string or music")
     (,string-or-symbol? . "string or symbol")
     (,void? . "void")
     ))