X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=tex%2Flilyponddefs.tex;h=467f5639951c6118cbba7060c057a05af1f12b25;hb=def21b306e2b8fa2d5630fab0878e9922e197f0c;hp=b25930520d8b5bb54d4f55278ea8c7b5bf32a24f;hpb=82731e802565546441c401a84a13b486e54eb760;p=lilypond.git

diff --git a/tex/lilyponddefs.tex b/tex/lilyponddefs.tex
index b25930520d..467f563995 100644
--- a/tex/lilyponddefs.tex
+++ b/tex/lilyponddefs.tex
@@ -1,67 +1,370 @@
+%%% lilyponddefs.tex -- TeX macros for LilyPond output.
+%%%
+%%%  source file of the GNU LilyPond music typesetter
+%%% 
+%%% (c) 1998--2007 Jan Nieuwenhuizen <janneke@gnu.org>
+%%%                 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+%%%                 Mats Bengtsson <mats.bengtsson@s3.kth.se>
+%%%
 %%
-%% include file for LilyPond
+%% Avoid \par while reading this file.
 %%
-%% this file defines various macros to accomodate lilypond output
+\edef\lilyponddefsELC{\the\endlinechar}%
+\endlinechar -1\relax
+
+%% This runs with plain TeX, LaTeX, pdftex, and texinfo.
 %%
-%% let's not make par before endinput
-%
-% TeXbook ex 7.7
-\def\ifundefined#1{\expandafter\ifx\csname#1\endcsname\relax}
-%
-% 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
+%% 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>
+%%   <font setup>
+%%   \ifx\lilypondstart \undefined
+%%     \input lilyponddefs
+%%   \fi
+%%   \lilypondstart
+%%   <note output>
+%%   \lilypondend
 
+%% A temporary variable.
+%%
+\newdimen\lytempdim
 
-%
-\def\botalign#1{\vbox to 0pt{\vss #1}}
-\def\leftalign#1{\hbox to 0pt{#1\hss}}
-
-\input feta20.tex
-
-% stacked horizontal lines
-\def\interscoreline{\vskip 16pt}
-\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
+%% The scaling factor for all dimensions.
+%%
+\newdimen\outputscale
+
+\long\gdef\lilypondfirst#1#2{#1}
+\long\gdef\lilypondsecond#1#2{#2}
+
+%% \lilypondundefined{xxx}{foo}{bar}
+%%
+%%   If `xxx' (without the leading backslash) is an undefined macro,
+%%   execute block `foo'.  Otherwise, execute block `bar'.  Based on
+%%   a similar macro from the LaTeX kernel.
+%%
+\gdef\lilypondifundefined#1{
+  \expandafter\ifx\csname#1\endcsname\relax
+    \expandafter\lilypondfirst
+  \else
+    \expandafter\lilypondsecond
+  \fi
 }
-\def\postheader{}
 
-% need to do some stuff to turn pagenumbering off
-% they seriously mess up  your fragments.
+%% Urgh.  LilyPond uses EC fonts, but texinfo is based on CM.  We thus
+%% have to handle T1 font encoding by ourselves; all manipulations are
+%% collected in the macro \lilypondECencoding.  Note that the following
+%% code only provides the texinfo interface, not complete access to all
+%% EC glyphs.
+%%
+%% All definitions are taken from texinfo or LaTeX (with modifications
+%% if necessary).
+%%
+\begingroup
+\catcode `\@=11\relax
+\gdef\lilypondECencoding{
+  \def\"##1{
+    {\accent4 ##1}}
+  \def\'##1{
+    {\accent1 ##1}}
+  \def\,##1{
+    {\leavevmode
+     \setbox\z@\hbox{##1}
+     \ifdim\ht\z@=1ex
+       \accent11 ##1
+     \else
+       {\ooalign{
+          \unhbox\z@
+          \crcr
+          \hidewidth
+          \char11
+          \hidewidth}}
+     \fi}}
+  \def\=##1{
+    {\accent9 ##1}}
+  \def\^##1{
+    {\accent2 ##1}}
+  \def\`##1{
+    {\accent0 ##1}}
+  \def\~##1{
+    {\accent3 ##1}}
+  \def\dotaccent##1{
+    {\accent10 ##1}}
+  \def\H##1{
+    {\accent5 ##1}}
+  \def\ringaccent##1{
+    {\accent6 ##1}}
+% \def\tieaccent##1{}        % unsupported: this is TS1
+  \def\u##1{
+    {\accent8 ##1}}
+  \def\ubaraccent##1{
+    {\o@lign{
+       \relax
+       ##1
+       \crcr
+       \hidewidth
+       \sh@ft{29}\vbox to.2ex{
+         \hbox{\char9}
+         \vss}
+       \hidewidth}}}
+  \def\udotaccent##1{
+    {\o@lign{
+       \relax
+       ##1
+       \crcr
+       \hidewidth
+       \sh@ft{10}.
+       \hidewidth}}}
+  \def\v##1{
+    {\accent7 ##1}}
+
+  \chardef\exclamdown=189
+  \chardef\questiondown=190
+
+  \def\aa{
+    \ringaccent{a}}
+  \def\AA{
+    \ringaccent{A}}
+  \chardef\AE=198
+  \chardef\ae=230
+  \chardef\ptexi=25
+  \chardef\j=26
+  \chardef\L=138
+  \chardef\l=170
+  \chardef\O=216
+  \chardef\o=248
+  \chardef\OE=215
+  \chardef\oe=247
+  \chardef\ss=255
+}
+\endgroup
+
+%% This macro provides the necessary setup to make the lilypond data
+%% work with plain TeX, LaTeX, and texinfo.
+%%
+%% The reason of using \begingroup and \endgroup is to make the macro \x
+%% immediately disappear after it has been executed.  Since we have \def
+%% within \def within \gdef, four hash signs (`#') are needed for
+%% parameters.
+%%
+%% \lilypondfontencoding is emitted by LilyPond to set the encoding of
+%% text strings.
+%%
+\gdef\lilypondstart{
+  \frenchspacing
+  \outputscale \lilypondpaperoutputscale\lilypondpaperunit
+
+  \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
+
+       \def\lilypondfontencoding####1{
+         \lilypondECencoding}
+       \def\lilypondpagebreak{
+         \eject}
+       \def\lilypondnopagebreak{
+         \ifvmode
+           \penalty 10000\relax
+         \fi}}}
+
+    {%% LaTeX mode: Provide a complete preamble.
+     \def\x{
+       \endgroup
+
+       %% Indicate that we shall emit `\end{document}' while executing
+       %% \lilypondend.
+       \def\lilyponddocument{}
+
+       \def\lilypondfontencoding####1{
+         \fontencoding{####1}
+         \selectfont}
+       \def\lilypondpagebreak{
+         \newpage}
+       \def\lilypondnopagebreak{
+         \nopagebreak}
+
+       \documentclass[\lilyponddocumentclassoptions]{article}
+
+       %% As a safety guard, don't produce auxiliary files.
+       \nofiles
+
+       %% FIXME: workaround non-existent TeX.def.
+       \def\TeXdef{TeX}\ifx\TeXdef\lilypondpaperinputencoding
+         \usepackage[latin1]{inputenc}
+       \else
+         \usepackage[\lilypondpaperinputencoding]{inputenc}
+       \fi
+       \pagestyle{empty}
+
+       \usepackage{color}
 
-\ifx\csname nolilyfooter\endcsname\relax
-        \message{[footer defined]}%
-        \csname lilyfooter\texsuffix\endcsname%
-\else
-        \message{[footer empty]}
-        \csname%
-        nolilyfooter\texsuffix\endcsname
-\fi
+       \lilypondifundefined{lilypondclassic}
+         {%% If not in `classic' mode, undo LaTeX's page layout settings
+          %% since LilyPond does the layout by itself.
+          \topmargin-1in
+          \headheight0pt\headsep0pt
+          \oddsidemargin-1in
+          \evensidemargin\oddsidemargin}
 
-% fix chord.cc::banter_str before removing these
-\input fetdefs
+         {%% Otherwise center output horizontally, without changing the
+          %% vertical positioning.
+          \hsize\lilypondpaperlinewidth\lilypondpaperunit
+          \lytempdim \paperwidth
+          \advance\lytempdim -\the\hsize
+          \lytempdim 0.5\lytempdim
+          \advance\lytempdim -1in
+          \oddsidemargin \lytempdim
+          \evensidemargin \lytempdim}
 
+       \parindent 0pt
+
+       %% We can't directly say `\begin{document}' in this macro since
+       %% older versions of texinfo.tex define \begin as \outer; this
+       %% means that it causes an error if \begin is found within another
+       %% macro (even if the corresponding code will never be executed).
+       %% As a workaround we use \csname to call \begin.
+       \csname begin\endcsname{document}}}
+  \x}
+
+%% The opposite of \lilypondstart.
+%%
+\gdef\lilypondend{
+  %% Handle the `lastpagefill' parameter from the \layout block.
+  %% Ignore it if \lilypondbook is defined.
+  \lilypondifundefined{lilypondbook}
+    {\lilypondifundefined{lilypondpaperlastpagefill}
+       {\vskip 0pt plus\lilypondpaperinterscorelinefill00 fill}
+       {}}
+    {}
+
+  \begingroup
+  \lilypondifundefined{lilyponddocument}
+    {\def\x{
+       \endgroup}}
+    {\def\x{
+       \endgroup
+       \csname end\endcsname{document}}}
+  \x}
+
+%% Load the PostScript drawing routines.  This is done using \special.
+%% To avoid multiple inclusions, redefine \lilypondspecial to a no-op
+%% afterwards.
+%%
+\gdef\lilypondspecial{
+  \special{header=music-drawing-routines.ps}
+  \gdef\lilypondspecial{}}
+
+%% The most used macro in LilyPond output.  Put #3 into a zero-width box
+%% which is moved to the right by #1 (scaled by \outputscale) and moved
+%% up by #2 (also scaled by \outputscale).
+%%
+\gdef\lyitem#1#2#3{
+  \raise #2\outputscale \hbox to 0pt {
+    \kern #1\outputscale
+    #3
+    \hss}}
+
+%% All LilyPond music data is enclosed in this macro (as third argument).
+%% The data (which consists of boxes with zero width) gets an artificial
+%% width of #1 and a height of #2.  The resulting box is then centered
+%% vertically along the x-height of the current font.
+%%
+%% Parameters #1 and #2 are scaled by \outputscale.
+%%
+\gdef\lybox#1#2#3{
+  \lytempdim #2\outputscale
+  \lytempdim -0.5\lytempdim
+  \advance\lytempdim 1ex
+  \leavevmode
+  \raise \lytempdim \hbox to #1\outputscale {
+    %% Convert depth of #3 into height only.
+    \vbox to #2\outputscale {\hbox{#3}\vss}
+    \hss}}
+
+%% Produce a black bar (width #2, depth #3, height #4) with a vertical
+%% offset #1.  Everything is scaled by \outputscale.
+%%
+\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's --preview
+%%
+\lilypondifundefined{interscoreline}
+  {\lilypondifundefined{lilypondclassic}
+     {\gdef\interscoreline{}}
+     {\gdef\interscoreline{
+        \vskip\lilypondpaperinterscoreline\lilypondpaperunit
+        plus \lilypondpaperinterscorelinefill fill}}}
+  {}
+
+%% Include PostScript definitions (which are differently defined for
+%% TeX and pdfTeX).  This is loaded once only because the inputted files
+%% define \lilypondpostscript.
+%%
+%% (Don't remove the spaces after the arguments to \input!)
+%%
+%
+%% In teTeX-3.0, latex is actually pdfetex, and we need
+%% ifpdf.sty to determinine if we are really *tex or pdf*tex.
+%
+%% \input ifpdf.sty
+%
+%% However, ifpfd.sty is too smart for LilyPond, so we copy the
+%% logic here.  Using \input ifpdf.sty is a no-op when using latex,
+%% and the \ifpdf switch is needed before \documentclass, using
+%% \usepackage{ifpdf} is not an option.
+%
+\input lily-ps-defs 
+
+% barfs with texi 
+% Runaway argument?
+%{
+%! Forbidden control sequence found while scanning use of \lilypondfirst.
+%<inserted text>
+%                \par
+%<to be read again>
+%                   \newif
+%l.330   {\newif
+%               \ifpdf
+%?
+%
+%%
+%\lilypondifundefined{lilypondpostscript}
+%  {\newif\ifpdf
+%   \ifx\pdfoutput\undefined
+%   \else
+%     \ifx\pdfoutput\relax
+%     \else
+%       \ifcase\pdfoutput
+%       \else
+%         \pdftrue
+%       \fi
+%     \fi
+%   \fi
+%   \ifpdf
+%     {\input lily-pdf-defs }
+%   \else
+%     {\input lily-ps-defs }
+%   \fi}
+%  {}
+%
+%% Restore newline functionality (disabled to avoid \par).
+%%
+\endlinechar \lilyponddefsELC
 \endinput
+
+%% end lilyponddefs.tex