On Fri, May 29, 2009 at 04:17:58PM -0700, Mark Polesky wrote: > > In lily-library.scm, why are some procedures defined with > "define-public" and some others only with "define"?
To the best of my understanding... The "define" procedures are generally only available within a single module (the Scheme file they are defined in) unless they are exported. For this to happen, a *named* module must be created with "define-module" and then the procedures can be exported with the "#:export" keyword. See scm/layout-page-layout.scm for an example of this. The "use-modules" procedure must be used in order to access the procedures exported in this way, unless you are in the same module of course. For example "post-process-pages" is defined in scm/layout-page-layout.scm, exported, and used in ly/paper-defaults-init.ly. On the other hand, "define-public" creates a sort of *global procedure*; any module has access to it. "define-safe-public" creates a global procedure that can be used in LilyPond's safe mode, IIUC. Hope this helps, Patrick _______________________________________________ lilypond-devel mailing list lilypond-devel@gnu.org http://lists.gnu.org/mailman/listinfo/lilypond-devel
