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%%% lilyponddefs.tex -- TeX macros for LilyPond output.
%%%
%%% source file of the GNU LilyPond music typesetter
%%%
%%% (c) 1998--2004 Jan Nieuwenhuizen <janneke@gnu.org>
%%% Han-Wen Nienhuys <hanwen@cs.uu.nl>
%%% Mats Bengtsson <mats.bengtsson@s3.kth.se>
%%%
%% Avoid \par while reading this file.
\edef\lilyponddefsELC{\the\endlinechar}%
\endlinechar -1\relax
%% This runs with plain TeX, LaTeX, pdftex, and texinfo.
%%
%% To avoid interferences, lilyponddefs.tex must be loaded within a group.
%% It is loaded only once, so 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
\newdimen\lytempdim
\newdimen\outputscale
%% Handy macros from the LaTeX manual.
\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}}
{
%% FIXME: a4
%% provide a proper LaTeX preamble (for A4 paper format)
\def\x{
\endgroup
\def\lilyponddocument{}
\documentclass[a4paper]{article}
%% safe-mode
\nofiles
\usepackage{inputenc}
\pagestyle{empty}
\lilypondifundefined{lilypondclassic}
{
%% Nullify [La]TeX page layout settings, page layout by LilyPond.
\topmargin-1in
\headheight0pt\headsep0pt
\oddsidemargin-1in
\evensidemargin\oddsidemargin
}
{
%% Center staves horizontally on page
\ifdim\lilypondpaperlinewidth\lilypondpaperunit > 0pt
\hsize\lilypondpaperlinewidth\lilypondpaperunit
\lytempdim \paperwidth
\advance\lytempdim -\the\hsize
\lytempdim 0.5\lytempdim
\advance\lytempdim -1in
\oddsidemargin \lytempdim
\evensidemargin \lytempdim
\fi
}
\parindent 0pt
%% TEXINFO workaround: \begin is defined as \outer, use \csname.
\csname begin\endcsname{document}}}
\x}
\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}
%% 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
}
%% Allow overriding of pagebreak
\lilypondifundefined{lilypondpagebreak}
{
\lilypondifundefined{@nodocument}
{\gdef\lilypondpagebreak{\eject}}
{\gdef\lilypondpagebreak{\newpage}}
}
{}
%% Include \special 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\topalign#1{\vbox to 0pt{\hbox{#1}\vss}}
\gdef\leftalign#1{\hbox to 0pt{#1\hss}}
\gdef\lyitem#1#2#3{
\topalign{\raise#2\outputscale\leftalign{\kern#1\outputscale#3}}}
\gdef\lybox#1#2#3#4#5{
\lytempdim\baselineskip
\advance\lytempdim-#4\outputscale
\raise\lytempdim
\vbox to#4\outputscale{
\leftalign{\kern#1\outputscale\lower#2\outputscale\topalign{#5}}
\vss}}
\gdef\lyvrule#1#2#3#4{
\kern#1\outputscale
\vrule width #2\outputscale depth #3\outputscale height #4\outputscale}
%% FIXME: 'interscoreline' and 'lilypondPAPERinterscoreline
\lilypondifundefined{lilypondpaperinterscorelinefill}
{\gdef\lilypondpaperinterscorelinefill{0}}
{\gdef\lilypondpaperinterscorelinefill{1}}
%% Allow overriding of interscoreline, e.g. for lilypond.py's --preview
\lilypondifundefined{interscoreline}
{
\lilypondifundefined{lilypondclassic}
{\gdef\interscoreline{}}
{\gdef\interscoreline{
\vskip\lilypondpaperinterscoreline\lilypondpaperunit
plus \lilypondpaperinterscorelinefill fill}}
}
{}
%% Include postscript definitions unless using PDFTeX,
%% in that case use pdf definitions.
%% MiKTeX workaround: use \csname.
\lilypondifundefined{lilypondpostscript}
{\lilypondifundefined{pdfoutput}
{\input lily-ps-defs }
{\pdfoutput = 1
\input lily-pdf-defs }}
{}
%% Restore newline functionality (disabled to avoid \par).
\endlinechar \lilyponddefsELC
\endinput
%% end lilyponddefs.tex
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