Release: bump Welcome versions.

[lilypond.git] / lily / context-scheme.cc

diff --git a/lily/context-scheme.cc b/lily/context-scheme.cc
index a26c168faccb2e073959d240f390a7a651d3613e..feda0f607eab62fffb45c2d770277b12114e814d 100644 (file)
--- a/lily/context-scheme.cc
+++ b/lily/context-scheme.cc
@@ -76,7 +76,7 @@ LY_DEFINE (ly_context_grob_definition, "ly:context-grob-definition",
 
 LY_DEFINE (ly_context_pushpop_property, "ly:context-pushpop-property",
            3, 1, 0, (SCM context, SCM grob, SCM eltprop, SCM val),
-           "Do a single @code{\\override} or @code{\\revert} operation"
+           "Do @code{\\temporary \\override} or @code{\\revert} operation"
            " in @var{context}.  The grob definition @var{grob} is extended"
            " with @var{eltprop} (if @var{val} is specified) or reverted"
            " (if unspecified).")
@@ -92,6 +92,19 @@ LY_DEFINE (ly_context_pushpop_property, "ly:context-pushpop-property",
   return SCM_UNSPECIFIED;
 }
 
+LY_DEFINE (ly_context_matched_pop_property, "ly:context-matched-pop-property",
+           3, 0, 0, (SCM context, SCM grob, SCM cell),
+           "This undoes a particular @code{\\override},"
+           " @code{\\once \\override} or @code{\\once \\revert}"
+           " when given the specific alist pair to undo.")
+{
+  Context *tg = LY_ASSERT_SMOB (Context, context, 1);
+  LY_ASSERT_TYPE (ly_is_symbol, grob, 2);
+  Grob_property_info (tg, grob).matched_pop (cell);
+  return SCM_UNSPECIFIED;
+}
+
+
 LY_DEFINE (ly_context_property, "ly:context-property",
            2, 1, 0, (SCM context, SCM sym, SCM def),
            "Return the value for property @var{sym} in @var{context}."