X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=tex%2Flilyponddefs.tex;h=880545417ff9cef62406c58d6b3dbf1ef032a038;hb=0a84151a3709fcf51b4b77f0e7e991db1a47eafc;hp=3a67da91836d9eb87c9ba9d02d920e10954b2c7c;hpb=eb195c4f69ee8574c9e79574b028f183790b5bb0;p=lilypond.git

diff --git a/tex/lilyponddefs.tex b/tex/lilyponddefs.tex
index 3a67da9183..880545417f 100644
--- a/tex/lilyponddefs.tex
+++ b/tex/lilyponddefs.tex
@@ -1,70 +1,202 @@
-%%
-%% include file for LilyPond
-%%
-%% this file defines various macros to accomodate lilypond output
-%%
-%% let's not make par before endinput
+% lilyponddefs.tex
 %
-% TeXbook ex 7.7
-\def\ifundefined#1{\expandafter\ifx\csname#1\endcsname\relax}
+% Include file for LilyPond.
 %
-% skip if included already
-\def\SkipLilydefs{\endinput}
-\ifundefined{EndLilyPondOutput}
-        \def\EndLilyPondOutput{\csname bye\endcsname}
-        \def\SkipLilydefs{}
-\fi
-\SkipLilydefs
-
-% need to do some stuff to turn pagenumbering off
-\ifundefined{documentclass}
-        \input lilypond-plaintex
-\else
-        \input lilypond-latex
-\fi
+% 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}
 
-%
-\def\botalign#1{\vbox to 0pt{\vss #1}}
-\def\leftalign#1{\hbox to 0pt{#1\hss}}
+\long\gdef\lilypondsecond#1#2{#2}
 
-\input feta20.tex
+\gdef\lilypondifundefined#1{
+  \expandafter\ifx\csname#1\endcsname\relax
+    \expandafter\lilypondfirst
+  \else
+    \expandafter\lilypondsecond
+  \fi
+}
 
-% Attempt to keep lilypiecetitle together with the piece:
-\def\myfilbreak{\par\vfil\penalty200\vfilneg}
-
-% stacked horizontal lines
-\def\interscoreline{\vskip 16pt\myfilbreak}
-\def\placebox#1#2#3{%
-        \botalign{\hbox{\raise #1\leftalign{\kern #2{}#3}}}}%
-
-% Are we using PDFTeX?  If so, use pdf definitions to translate
-% \embeddedps commands to embedded PDF.
-\ifx\pdfoutput\undefined  
-  \input lily-ps-defs
-\else
-  \pdfoutput=1
-  \input lily-pdf-defs
-\fi
-
-\def\EndLilyPondOutput{%
-  \csname bye\endcsname
+\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}
+        \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}}
+  }
 }
-\def\postheader{}
 
-% need to do some stuff to turn pagenumbering off
-% they seriously mess up  your fragments.
+\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}}
 
-\ifx\csname nolilyfooter\endcsname\relax
-        \message{[footer defined]}%
-        \csname lilyfooter\texsuffix\endcsname%
-\else
-        \message{[footer empty]}
-        \csname%
-        nolilyfooter\texsuffix\endcsname
-\fi
+\gdef\interscoreline{
+  \vskip \lilypondpaperinterscoreline \lilypondpaperunit
+    plus \lilypondpaperinterscorelinefill fill
+}
 
-% fix chord.cc::banter_str before removing these
-\input fetdefs
+% 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