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In a markup like
\raise #0.5 "foo"
\raise
is actually represented by the raise-markup
function. The markup expression is stored as
(list raise-markup 0.5 (list simple-markup 'latin1 "foo"))
In this case, latin1
is the input encoding, which is set with
the \encoding
command.
When the markup is converted to printable objects (Stencils), the
raise-markup
function is called as
(apply raise-markup \layout object list of property alists 0.5 the "foo" markup)
The raise-markup
first creates the stencil for the foo
string, and then it raises that Stencil by 0.5 staff space. This is a
rather simple example; more complex examples are in the rest of this
section, and in scm/define-markup-commands.scm.
This page is for LilyPond-2.5.11 (development-branch).