Issue 4425: Fix some CG musing about music functions

[lilypond.git] / Documentation / contributor / feta-font.itexi

diff --git a/Documentation/contributor/feta-font.itexi b/Documentation/contributor/feta-font.itexi
index eb5dd124cd18395007677e8fe532a34d81445ac7..002aa895a43167a4fc9eac319d2925e6de207b9e 100644 (file)
--- a/Documentation/contributor/feta-font.itexi
+++ b/Documentation/contributor/feta-font.itexi
@@ -8,6 +8,7 @@
 * Adding a new font section::
 * Adding a new glyph::
 * Building the changed font::
+* METAFONT formatting rules::
 @end menu
 
 @node Overview of the feta font
@@ -111,3 +112,29 @@ is to do:
 rm mf/out/*
 make
 @end example
+
+@node METAFONT formatting rules
+@section METAFONT formatting rules
+
+There are special formatting rules for METAFONT files.
+
+Tabs are used for the indentation of commands.
+
+When a path contains more than two points, put each point on a
+separate line, with the operator at the beginning of the line.
+The operators are indented to the same depth as the initial point
+on the path using spaces.  The indentation mechanism is illustrated
+below, with @samp{------->} indicating a tab character and any other
+indentation created using spaces.
+
+@example
+def draw_something (test) =
+------->if test:
+------->------->fill z1
+------->------->     -- z2
+------->------->     -- z3
+------->------->     .. cycle;
+------->fi;
+enddef;
+@end example
+