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%GregorioTeX file.
%
% Copyright (C) 2014-2017 The Gregorio Project (see CONTRIBUTORS.md)
%
% This file is part of Gregorio.
%
% Gregorio is free software: you can redistribute it and/or modify
% it under the terms of the GNU General Public License as published by
% the Free Software Foundation, either version 3 of the License, or
% (at your option) any later version.
%
% Gregorio is distributed in the hope that it will be useful,
% but WITHOUT ANY WARRANTY; without even the implied warranty of
% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
% GNU General Public License for more details.
%
% You should have received a copy of the GNU General Public License
% along with Gregorio. If not, see <http://www.gnu.org/licenses/>.
% this file contains macros for St. Gall ancient neume support
\gre@declarefileversion{gregoriotex-nabc.tex}{5.0.1}% GREGORIO_VERSION
\xdef\gre@nabcfontname{gregall}%
\xdef\gre@nabcfontsize{8}%
\def\gresetnabcfont#1#2{%
\xdef\gre@nabcfontname{#1}%
\xdef\gre@nabcfontsize{#2}%
\global\font\gre@font@nabc={name:#1} at #2 pt\relax %
{%
\gre@font@nabc %
\directlua{gregoriotex.init_nabc_font("\luatexluaescapestring{#1}")}%
}%
\gre@nabcfontloadedtrue%
}
\def\gre@nabccharno#1#2#3{%
\gre@trace{gre@nabccharno{#1}{#2}{#3}}%
{\directlua{gregoriotex.print_nabc(gregoriotex.parse_nabc("#1", "\luatexluaescapestring{#2}", #3))}}%
\gre@trace@end%
}
\def\GreNABCChar#1{{%
%\catcode`\~=12{}%
%\catcode`\@=11{}%
\gre@font@nabc %
\gre@style@nabc %
\gre@nabccharno{#1}{\gre@nabcfontname}{1}%
\endgre@style@nabc%
}}
\newif\ifgre@nabcvoice@i@visible
\gre@nabcvoice@i@visibletrue
% define more of these when more voices are supported
\def\gresetnabc#1#2{%
\IfStrEqCase{#2}{%
{visible}%
{\csname gre@nabcvoice@\romannumeral#1@visibletrue\endcsname}%
{invisible}%
{\csname gre@nabcvoice@\romannumeral#1@visiblefalse\endcsname}%
}[% all other cases
\gre@error{Unrecognized option "#2" for \protect\gresetnabc\MessageBreak Possible options are: 'visible' and 'invisible'}%
]%
}
\def\GreNABCNeumes#1#2#3#4{%
\csname ifgre@nabcvoice@\romannumeral#1@visible\endcsname %
\GreSetNabcAboveLines{\GreNABCChar{#2}}%
\fi %
}
\newif\ifgre@nabcfontloaded%
\gre@nabcfontloadedfalse%
\def\GreScoreNABCLines#1{%
\ifgre@nabcfontloaded\else%
\gresetnabcfont{\gre@nabcfontname}{\gre@nabcfontsize}%
\fi %
}
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