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%GregorioTeX common file (stuff needed by both gregoriotex and gregoriosyms)
%
% Copyright (C) 2007-2017 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/>.
\gre@declarefileversion{gregoriotex-commonx.tex}{5.0.2}% GREGORIO_VERSION
%%%%%%%%%
%% Debugging
%%%%%%%%%
\def\gre@debugmsg#1#2{%
\IfStrEq{\gre@debug}{}{}%
%false
{\IfStrEq{#1}{all}%
%true
{\gre@error{Debug error: ‘all’ is not a permitted keyword}}%
%false
{\IfStrEq{\gre@debug}{,all,}%
%true
{\gre@typeout{GregorioTeX debug: (#1) #2}}%
%false
{\IfSubStr{\gre@debug}{,#1,}%
%true
{\gre@typeout{GregorioTeX debug: (#1) #2}}%
%false
{\relax}%
}%
}%
}%
}%
\def\gre@fixdebug{%
{% we're starting a group in order to localize \exploregroups
\exploregroups%
\StrRemoveBraces{\gre@debug}[\gre@debug]%
\xdef\gre@debug{,\gre@debug,}%
}%
}%
\IfStrEq{\gre@debug}{}{% then
}{% else
\typeout{GregorioTeX is in debug mode}%
\typeout{\gre@debug\space messages will be printed to the log.}%
\gre@fixdebug\relax %
}%
%%%%%%%%%%%%%
% Macros to handle deprecation path.
%%%%%%%%%%%%%
% #1 - the deprecated macro
% #2 - the correct macro to use
\def\gre@deprecated#1#2{%
\ifgre@allowdeprecated%
\gre@warning{#1\space is deprecated.\MessageBreak Use #2\space instead}%
\else%
\gre@error{#1\space is deprecated.\MessageBreak Use #2\space instead}%
\fi%
\relax%
}%
\def\gre@obsolete#1#2{%
\gre@error{#1\space is obsolete.\MessageBreak Use #2\space instead}%
\relax%
}%
%%%%%%%%%%%%%
% Internal function tracing
%%%%%%%%%%%%%
% Each function in the internal name space (\gre@...) should have an invocation of
% \gre@trace as its first line with the argument being the name of the function (without
% the backslash) and the list of arguments.
% The last line of these functions should be \gre@trace@end.
% Macros which merely store a value are not considered to be functions and thus not
% included in the trace stack.
% We also exempt the internal aliases for functions defined elsewhere.
% The tracing messages are turned on via the debug interface, keyword: trace.
\def\gre@trace@prefix{GreTrace: }
\def\gre@trace#1{%
\IfSubStr{\gre@debug}{,trace,}%
{%print tracing messages and increase indent
\gre@typeout{\gre@trace@prefix \unexpanded{#1}}%
\edef\gre@trace@prefix{\gre@trace@prefix| }%
}{}%do nothing if not tracing
}%
\def\gre@trace@end{%
\IfSubStr{\gre@debug}{,trace,}%
{%dedent trace messages and mark end
\StrGobbleRight{\gre@trace@prefix}{2}[\gre@trace@prefix]%
\gre@typeout{\gre@trace@prefix -----}%
}{}%do nothing if not tracing
}
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