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\ProvidesExplPackage{stripsemantex}{2020/09/07}{0.1alpha}{}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% stripSemanTeX -- strip the document of SemanTeX markup %
% https://ctan.org/pkg/semantex %
% (C) 2020 Sebastian Ørsted %
% sorsted@gmail.com %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\msg_new:nnn { stripsemantex } { not_luatex } { This~package~only~works~with~LuaTeX;~the~current~TeX~run~has~been~terminated. }
\msg_new:nnn { stripsemantex } { source_not_expected } { The~source~code~in~the~file~did~not~fit~the~code~in~the~.semtex~file.~We~expected~#1~but~got~#2.~This~is~not~supposed~to~happen.~Please~report~this~bug~ASAP. }
\msg_new:nnn { stripsemantex } { no_semtex_file } { The~file~#1.semtex~was~not~found.~Did~you~remember~to~do \\ \token_to_str:N\SemantexSetup{semtexfile=true}? }
\msg_new:nnn { stripsemantex } { begin_document_not_found } { No~\token_to_str:N\begin{document}~found~in~the~file~#1;~it~has~to~be~in~the~main~document. }
\sys_if_engine_luatex:F { \msg_fatal:nn { stripsemantex } { not_luatex } }
\lua_now:n { require('stripsemantex.lua') }
\cs_new_protected:Npn\stripsemantex_create_prestripped_file:n#1
{
\file_if_exist:nF { #1.semtex }
{
\msg_fatal:nnn { stripsemantex } { no_semtex_file } { #1 }
}
\lua_now:e {
copy_file('\lua_escape:e{#1}.tex', '\lua_escape:e{#1}_prestripped.tex')
openFile('\lua_escape:e{#1}_prestripped.tex')
}
\cs_set:Npn\DeclareObject##1
{
\lua_now:e { addIDsToRegisters ( '\cs_to_str:N ##1' ) }
}
\cs_set:Npn\DeclareClass##1{
\lua_now:e { addIDsToRegisters ( '\cs_to_str:N ##1' ) }
}
\cs_set:Npn\BeginSource##1\EndSource\BeginOutput##2\EndOutput{}
\file_input:n { #1.semtex }
\lua_now:e
{
removeSuperfluousIDs()
addNumbersToIDs()
closeFile('\lua_escape:e{#1}_prestripped.tex')
}
}
\cs_new_protected:Npn\stripsemantex_create_stripped_file:n#1
{
\file_if_exist:nF { #1_prestripped.semtex }
{
\msg_fatal:nnn { stripsemantex } { no_semtex_file } { #1_prestripped }
}
\lua_now:e {
copy_file('\lua_escape:e{#1}_prestripped.tex', '\lua_escape:e{#1}_stripped.tex')
openFile('\lua_escape:e{#1}_stripped.tex')
}
\cs_set:Npn\SemantexID##1\BeginSource##2\EndSource\BeginOutput##3\EndOutput
{
\lua_now:e
{
semantexIDluacommand( '\lua_escape:e{\tl_trim_spaces:n{##1}}' , '\lua_escape:e{\exp_not:n{##2}}' , '\lua_escape:e{\exp_not:n{##3}}' )
}
}
\cs_set:Npn\DeclareObject##1{}
\cs_set:Npn\DeclareClass##1{}
\cs_set:Npn\BeginSource##1\EndSource\BeginOutput##2\EndOutput{}
\file_input:n { #1_prestripped.semtex }
\lua_now:e
{
stripRemainingSemantexIDs()
addSemtexPackageToFile()
closeFile('\lua_escape:e{#1}_stripped.tex')
}
}
\cs_set_eq:NN\StripSemantexCopyFile\stripsemantex_create_prestripped_file:n
\cs_new_protected:Npn\StripSemantexStripFile#1
{
\begingroup
\ExplSyntaxOn
\stripsemantex_create_stripped_file:n { #1 }
% \ExplSyntaxOff
\endgroup
}
\cs_new_protected:Npn\StripSemantex#1
{
% This will only work after a bug has been corrected in expl3
\file_compare_timestamp:nNnTF { #1.semtex } < { #1_prestripped.semtex }
{
\StripSemantexStripFile { #1 }
}
{
\StripSemantexCopyFile { #1 }
}
}
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