Issue 2398 in lilypond: Create !name and !offset messages in lilypond-book for LaTeX

[lilypond]

Status: Accepted
Owner: ----
Labels: Type-Enhancement

New issue 2398 by address@hidden: Create !name and !offset messages in  
lilypond-book for LaTeX
http://code.google.com/p/lilypond/issues/detail?id=2398

AUCTeX, a TeX shell in Emacs, inserts lines like
\message{ !name(lilytalk.lytex) !offset(-3) }
into LaTeX files that it creates, and when the LaTeX program outputs those  
messages among its error messages, AUCTeX knows that errors occuring in the  
current file actually belong to the file lilytalk.lytex, and the error line  
numbers in error messages have an offset from the real position of -3.  It  
would be quite nice if LilyPond-book (via command line option?) was able to  
insert these lines into the .tex file it generates from .lytex: that way  
error message processing would point right to the actual source.

That would also be a prerequisite to make preview-latex, a WYSIWYG  
subsystem of AUCTeX, do the right thing.