%%% 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
%% The overall structure of a file created by LilyPond is as follows:
%%
%% <lilypond parameter definitions>
+%% <font setup>
%% \ifx\lilypondstart \undefined
%% \input lilyponddefs
%% \fi
%% \lilypondstart
-%% <font setup and note output>
+%% <note output>
%% \lilypondend
+%% A temporary variable.
+%%
+\newdimen\lytempdim
+
+%% The scaling factor for all dimensions.
+%%
\newdimen\outputscale
-%% Handy macros from the LaTeX manual.
\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
\fi
}
+%% 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}}
- {
- %% FIXME: a4
- %% provide a proper LaTeX preamble (for A4 paper format)
- \def\x{
- \endgroup
- \def\lilyponddocument{}
- \documentclass[a4paper]{article}
- %% safe-mode
- \nofiles
- %% Nullify [La]TeX page layout settings, page layout by LilyPond.
- \pagestyle{empty}
- \topmargin-1in
- \headheight0pt\headsep0pt
- \oddsidemargin-1in
- \evensidemargin\oddsidemargin
- \parindent 0pt
- %% TEXINFO workaround: \begin is defined as \outer, use \csname.
- \csname begin\endcsname{document}}}
+ {%% 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
+
+ \usepackage[\lilypondpaperinputencoding]{inputenc}
+ \pagestyle{empty}
+
+ \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}
+
+ {%% 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}
- {}}
- {}
+ {\lilypondifundefined{lilypondpaperlastpagefill}
+ {\vskip 0pt plus\lilypondpaperinterscorelinefill00 fill}
+ {}}
+ {}
+
\begingroup
\lilypondifundefined{lilyponddocument}
- {\def\x{\endgroup}}
- {\def\x{\endgroup\csname end\endcsname{document}}}
+ {\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.
+%% 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 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\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{
- \topalign{\raise#2\outputscale\leftalign{\kern#1\outputscale#3}}}
+ \raise #2\outputscale \hbox to 0pt {
+ \kern #1\outputscale
+ #3
+ \hss}}
-\newdimen\lytempdim
-\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}}
+%% 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.py's --preview
+%% Allow overriding of interscoreline, e.g., for LilyPond's --preview
+%%
\lilypondifundefined{interscoreline}
-{\gdef\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.
+%% 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!)
+%%
\lilypondifundefined{lilypondpostscript}
-{\lilypondifundefined{pdfoutput}
- {\input lily-ps-defs }
- {\pdfoutput = 1
- \input lily-pdf-defs }}
-{}
+ {\lilypondifundefined{pdfoutput}
+ {\input lily-ps-defs }
+ {\pdfoutput = 1
+ \input lily-pdf-defs }}
+ {}
%% Restore newline functionality (disabled to avoid \par).
+%%
\endlinechar \lilyponddefsELC
\endinput