tex/lilyponddefs.tex

   1 %%% lilyponddefs.tex -- TeX macros for LilyPond output.
   2 %%%
   3 %%%  source file of the GNU LilyPond music typesetter
   4 %%%
   5 %%% (c)  1998--2004 Jan Nieuwenhuizen <janneke@gnu.org>
   6 %%%                 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7 %%%                 Mats Bengtsson <mats.bengtsson@s3.kth.se>
   8 %%%
   9 %% Avoid \par while reading this file.
  10 \edef\lilyponddefsELC{\the\endlinechar}%
  11 \endlinechar -1\relax
  12
  13 %% This runs with plain TeX, LaTeX, pdftex, and texinfo.
  14 %%
  15 %% To avoid interferences, lilyponddefs.tex must be loaded within a group.
  16 %% It is loaded only once, so the definitions must be global.
  17 %%
  18 %% The overall structure of a file created by LilyPond is as follows:
  19 %%
  20 %%   <lilypond parameter definitions>
  21 %%   \ifx\lilypondstart \undefined
  22 %%     \input lilyponddefs
  23 %%   \fi
  24 %%   \lilypondstart
  25 %%   <font setup and note output>
  26 %%   \lilypondend
  27
  28 \newdimen\lytempdim
  29 \newdimen\outputscale
  30
  31 %% Handy macros from the LaTeX manual.
  32 \long\gdef\lilypondfirst#1#2{#1}
  33 \long\gdef\lilypondsecond#1#2{#2}
  34 \gdef\lilypondifundefined#1{
  35   \expandafter\ifx\csname#1\endcsname\relax
  36     \expandafter\lilypondfirst
  37   \else
  38     \expandafter\lilypondsecond
  39   \fi
  40 }
  41
  42 \gdef\lilypondstart{
  43   \begingroup
  44   \catcode `\@=11\relax
  45   %% \@nodocument is defined as \relax after `\begin{document}'
  46   \lilypondifundefined{@nodocument}
  47     {
  48       %% either plain TeX or texinfo or not at the beginning of LaTeX input
  49       \def\x{\endgroup}}
  50     {
  51       %% FIXME: a4
  52       %% provide a proper LaTeX preamble (for A4 paper format)
  53       \def\x{
  54         \endgroup
  55         \def\lilyponddocument{}
  56         \documentclass[a4paper]{article}
  57         %% safe-mode
  58         \nofiles
  59         \usepackage{inputenc}
  60         \pagestyle{empty}
  61         \lilypondifundefined{lilypondclassic}
  62         {
  63           %% Nullify [La]TeX page layout settings, page layout by LilyPond.
  64           \topmargin-1in
  65           \headheight0pt\headsep0pt
  66           \oddsidemargin-1in
  67           \evensidemargin\oddsidemargin
  68         }
  69         {
  70           %% Center staves horizontally on page
  71           \ifdim\lilypondpaperlinewidth\lilypondpaperunit > 0pt
  72           \hsize\lilypondpaperlinewidth\lilypondpaperunit
  73           \lytempdim \paperwidth
  74           \advance\lytempdim -\the\hsize
  75           \lytempdim 0.5\lytempdim
  76           \advance\lytempdim -1in
  77           \oddsidemargin \lytempdim
  78           \evensidemargin \lytempdim
  79           \fi
  80         }
  81         \parindent 0pt
  82         %% TEXINFO workaround: \begin is defined as \outer, use \csname.
  83         \csname begin\endcsname{document}}}
  84   \x}
  85
  86 \gdef\lilypondend{
  87   \lilypondifundefined{lilypondbook}
  88   {\lilypondifundefined{lilypondpaperlastpagefill}
  89     {\vskip 0pt plus\lilypondpaperinterscorelinefill00 fill}
  90     {}}
  91   {}
  92   \begingroup
  93   \lilypondifundefined{lilyponddocument}
  94     {\def\x{\endgroup}}
  95     {\def\x{\endgroup\csname end\endcsname{document}}}
  96   \x}
  97
  98 %% Inversed \loop ... \repeat macro
  99 \def\lilypondloop#1\lilypondrepeat{
 100   \def\lilypondbody{#1}
 101   \lilyponditerate
 102 }
 103
 104 \def\lilyponditerate{
 105   % \if ...
 106     \lilypondbody
 107     \let\lilypondnext \relax
 108   \else
 109     \let\lilypondnext \lilyponditerate
 110   \fi
 111   \lilypondnext
 112 }
 113
 114 %% Allow overriding of pagebreak
 115 \lilypondifundefined{lilypondpagebreak}
 116 {
 117   \lilypondifundefined{@nodocument}
 118   {\gdef\lilypondpagebreak{\eject}}
 119   {\gdef\lilypondpagebreak{\newpage}}
 120   }
 121   {}
 122
 123 %% Include \special only once.
 124 \gdef\lilypondspecial{
 125   \special{header=music-drawing-routines.ps}
 126   \gdef\lilypondspecial{}
 127 }
 128
 129 %% The feta characters.
 130 \input feta20
 131
 132 \global\font\fetasixteen = feta16
 133 \gdef\fetafont{\fetasixteen}
 134 \gdef\fetachar#1{\hbox{\fetasixteen#1}}
 135
 136 \gdef\topalign#1{\vbox to 0pt{\hbox{#1}\vss}}
 137 \gdef\leftalign#1{\hbox to 0pt{#1\hss}}
 138
 139 \gdef\lyitem#1#2#3{
 140   \topalign{\raise#2\outputscale\leftalign{\kern#1\outputscale#3}}}
 141
 142 \gdef\lybox#1#2#3#4#5{
 143   \lytempdim\baselineskip
 144   \advance\lytempdim-#4\outputscale
 145   \raise\lytempdim
 146   \vbox to#4\outputscale{
 147     \leftalign{\kern#1\outputscale\lower#2\outputscale\topalign{#5}}
 148     \vss}}
 149
 150 \gdef\lyvrule#1#2#3#4{
 151   \kern#1\outputscale
 152   \vrule width #2\outputscale depth #3\outputscale height #4\outputscale}
 153
 154 %% FIXME: 'interscoreline' and 'lilypondPAPERinterscoreline
 155 \lilypondifundefined{lilypondpaperinterscorelinefill}
 156   {\gdef\lilypondpaperinterscorelinefill{0}}
 157   {\gdef\lilypondpaperinterscorelinefill{1}}
 158
 159 %% Allow overriding of interscoreline, e.g. for lilypond.py's --preview
 160 \lilypondifundefined{interscoreline}
 161 {
 162   \lilypondifundefined{lilypondclassic}
 163   {\gdef\interscoreline{}}
 164   {\gdef\interscoreline{
 165       \vskip\lilypondpaperinterscoreline\lilypondpaperunit
 166       plus \lilypondpaperinterscorelinefill fill}}
 167 }
 168 {}
 169
 170 %% Include postscript definitions unless using PDFTeX,
 171 %% in that case use pdf definitions.
 172 %% MiKTeX workaround: use \csname.
 173 \lilypondifundefined{lilypondpostscript}
 174 {\lilypondifundefined{pdfoutput}
 175   {\input lily-ps-defs }
 176   {\pdfoutput = 1
 177     \input lily-pdf-defs }}
 178 {}
 179
 180 %% Restore newline functionality (disabled to avoid \par).
 181 \endlinechar \lilyponddefsELC
 182 \endinput
 183
 184 %% end lilyponddefs.tex