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% lilyponddefs.tex
%
% Include file for LilyPond.
%
% This file defines various macros to acommodate lilypond output.
%
% It should run with plain TeX, LaTeX, pdftex, and texinfo.
%
% To avoid interferences, lilyponddefs.tex should be loaded within a group.
% To load it only once, most of the definitions must be global.
%
% The overall structure of a file created by LilyPond is as follows:
%
% <lilypond parameter definitions>
% \ifx\lilypondstart \undefined
% \input lilyponddefs
% \fi
% \lilypondstart
% <font setup and note output>
% \lilypondend
%
% No footers and headers are provided for the stand-alone run (i.e., for
% directly saying `latex <LilyPond output>'.
%
%
% Avoid \par while reading this file.
\edef\lilyponddefsELC{\the\endlinechar}%
\endlinechar -1\relax
% the next three macros are taken from LaTeX
\long\gdef\lilypondfirst#1#2{#1}
\long\gdef\lilypondsecond#1#2{#2}
\gdef\lilypondifundefined#1{
\expandafter\ifx\csname#1\endcsname\relax
\expandafter\lilypondfirst
\else
\expandafter\lilypondsecond
\fi
}
\gdef\lilypondstart{
\begingroup
\catcode `\@=11\relax
% \@nodocument is defined as \relax after `\begin{document}'
\lilypondifundefined{@nodocument}
{
% either plain TeX or texinfo or not at the beginning of LaTeX input
\def\x{\endgroup}
}
{
% provide a proper LaTeX preamble (for A4 paper format)
\def\x{
\endgroup
\def\lilyponddocument{}
\documentclass[a4paper]{article}
\nofiles
\pagestyle{empty}
% \begin is defined as \outer in texinfo, thus we use \csname
\csname begin\endcsname{document}
% center staves horizontally on page
\ifdim\lilypondpaperlinewidth\lilypondpaperunit > 0pt
\hsize\lilypondpaperlinewidth\lilypondpaperunit
% we abuse \scoreshift temporarily
\scoreshift \paperwidth
\advance\scoreshift -\the\hsize
\scoreshift 0.5\scoreshift
\advance\scoreshift -1in
\oddsidemargin \scoreshift
\evensidemargin \scoreshift
\fi
\parindent 0pt
}
}
\x
\lilypondifundefined{mustmakelilypondtitle}
{}
{\makelilypondtitle}
\lilypondifundefined{mustmakelilypondpiecetitle}
{}
{\makelilypondpiecetitle}
}
\gdef\lilypondend{
\lilypondifundefined{lilypondbook}
{\lilypondifundefined{lilypondpaperlastpagefill}
{\vskip 0pt plus \lilypondpaperinterscorelinefill00 fill}
{}
}
{}
\begingroup
\lilypondifundefined{lilyponddocument}
{
\def\x{\endgroup}
}
{
\def\x{
\endgroup
\csname end\endcsname{document}
}
}
\x
}
% this is an inversed \loop ... \repeat macro
\def\lilypondloop#1\lilypondrepeat{
\def\lilypondbody{#1}
\lilyponditerate
}
\def\lilyponditerate{
% \if ...
\lilypondbody
\let\lilypondnext \relax
\else
\let\lilypondnext \lilyponditerate
\fi
\lilypondnext
}
% the following macro is executed only once
\gdef\lilypondspecial{
\special{header=music-drawing-routines.ps}
\gdef\lilypondspecial{}
}
% the feta characters
\input feta20
\global\font\fetasixteen = feta16
\gdef\fetafont{\fetasixteen}
\gdef\fetachar#1{\hbox{\fetasixteen#1}}
\gdef\botalign#1{
\vbox to 0pt{\vss #1}
}
\gdef\leftalign#1{
\hbox to 0pt{#1\hss}
}
\gdef\lyitem#1#2#3{
\botalign{
\hbox{\raise #1\outputscale
\leftalign{\kern #2\outputscale #3}}
}
}
\gdef\lybox#1#2#3{
\hbox to #1\outputscale {
\lower\scoreshift \vbox to #2\outputscale {
\hbox{#3}
\vss
}
\hss
}
}
\gdef\lyvrule#1#2#3#4{
\kern #1\outputscale
\vrule width #2\outputscale depth #3\outputscale height #4\outputscale
}
% Attempt to keep lilypiecetitle together with the piece:
%
% TODO: figure this out.
\gdef\myfilbreak{}%\par\vfil\penalty200\vfilneg}
\lilypondifundefined{lilypondpaperinterscorelinefill}
{\gdef\lilypondpaperinterscorelinefill{0}}
{\gdef\lilypondpaperinterscorelinefill{1}}
%% Allow overriding of interscoreline, eg for lilypond --preview
\lilypondifundefined{interscoreline}
{\gdef\interscoreline{
\vskip \lilypondpaperinterscoreline \lilypondpaperunit
plus \lilypondpaperinterscorelinefill fill
}}{}
% Are we using PDFTeX? If so, use pdf definitions.
% MiKTeX checks \pdfoutput the wrong way, thus we use \csname.
\lilypondifundefined{lilypondpostscript}
{
\lilypondifundefined{pdfoutput}
{\input lily-ps-defs }
{
\pdfoutput = 1
\input lily-pdf-defs %
}
}
{}
\newdimen\outputscale
\newdimen\scoreshift
% Restore newline functionality (disabled to avoid \par).
\endlinechar \lilyponddefsELC
\endinput
% EOF
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