Doc-es: various updates.

[lilypond.git] / input / regression / apply-context.ly

diff --git a/input/regression/apply-context.ly b/input/regression/apply-context.ly
index 2cf54b1b9915f21c8c2836b0ba3d3a1d902a192d..90ebff0c99ac432760aeae1795313a2aea9bcae2 100644 (file)
--- a/input/regression/apply-context.ly
+++ b/input/regression/apply-context.ly
@@ -1,22 +1,30 @@
+
+\version "2.19.21"
+
+
 \header {
 
-texidoc = "with \\applycontext, \\properties can be modified
+texidoc = "With @code{\\applyContext}, @code{\\properties} can be modified
 procedurally. Applications include: checking bar numbers, smart
-octavation. "
+octavation.
+
+
+This example prints a bar-number during processing on stdout.
+"
 
 }
 
-\score { \notes \relative c'' {
-    c1 c1
+\layout { ragged-right= ##t }
+
 
-    %% todo: should put something interesting in the .tex output.
-    
-    \applycontext #(lambda (tr)
-                   (let* ((bn (ly:get-context-property tr 'currentBarNumber)))
-                    (if (= bn  3)
-                     #t
-                     (format #t "We were called in  ~a" bn))
-                ))
+\relative {
+  c''1 c1
 
-    c1 c1
-}}
+  %% todo: should put something interesting in the .tex output.
+  
+  \applyContext
+  #(lambda (tr)
+    (ly:progress "\nWe were called in bar number ~a.\n"
+     (ly:context-property tr 'currentBarNumber)))
+  c1 c1
+}