mathml/luamml-pdf.sty

\ProvidesExplPackage {luamml-pdf} {2021-05-31} {0.0.1-alpha}
  {MathML generation for L̶u̶a̶pdfLaTeX}

\cs_new:Npn \__luamml_pdf_showlists: {
  \group_begin:
    \int_set:Nn \l_tmpa_int { \tex_interactionmode:D }
    \int_set:Nn \tex_interactionmode:D { 0 }
    \int_set:Nn \tex_showboxdepth:D { \c_max_int }
    \int_set:Nn \tex_showboxbreadth:D { \c_max_int }
    \tex_showlists:D
    \int_set:Nn \tex_interactionmode:D { \l_tmpa_int }
  \group_end:
}

\int_new:N \g__luamml_formula_id_int
\cs_new_protected:Npn \luamml_pdf_write: {
  \int_gincr:N \g__luamml_formula_id_int
  \iow_log:x {
    LUAMML_FORMULA_BEGIN:
    \int_use:N \g__luamml_formula_id_int
  }
  \__luamml_pdf_showlists:
  \iow_log:x {
    LUAMML_FORMULA_END
  }
}

\cs_new:Npn \luamml_pdf_last_formula: {
  \int_use:N \g__luamml_formula_id_int
}

\cs_generate_variant:Nn \tl_to_str:n { e }

% annotate parameters
%   #1 number of top level nodes to be annotated
%   #2 annotation
%   #3 nodes to be annotated
\int_new:N \g__luamml_annotation_id_int
\cs_new_protected:Npn \luamml_pdf_annotate:nnn #1#2#3 {
  \int_gincr:N \g__luamml_annotation_id_int
  \iow_shipout_x:Nx \c_log_iow {
    \tl_to_str:e {
      LUAMML_MARK:
      \int_use:N \g__luamml_annotation_id_int
      :
      count = \int_eval:n {#1},
      #2
    }
    \exp_not:N \iow_newline:
    LUAMML_MARK_END
  }
  #3
}

% annotate parameters
%   #1 annotation
%   #2 nodes to be annotated
% THIS VERSION IS SIGNIFICANTLY SLOWER
\cs_new_protected:Npn \luamml_pdf_annotate:nn #1#2 {
  \int_gincr:N \g__luamml_annotation_id_int
  \iow_write:Nx \c_log_iow {
    LUAMML_COUNT_BEGIN:
    \int_use:N \g__luamml_annotation_id_int
  }
  \__luamml_pdf_showlists:
  \iow_shipout:Nx \c_log_iow {
    LUAMML_MARK:
    \int_use:N \g__luamml_annotation_id_int
    :
    #1
  }
  #2
  \iow_write:Nx \c_log_iow {
    LUAMML_COUNT_END:
    \int_use:N \g__luamml_annotation_id_int
  }
  \__luamml_pdf_showlists:
}

\NewDocumentCommand \RegisterFamilyMapping {m m} {
  \iow_log:x {
    LUAMML_INSTRUCTION:REGISTER_MAPPING: \int_use:N #1 : #2
  }
}

\endinput

\cs_new:Npn \__luamml_patch_package:nn #1 #2 {
  \@ifpackageloaded {#1} {#2} {
    \hook_gput_code:nnn {package/after/#1} {luamml} {#2}
  }
}
\cs_new:Npn \__luamml_patch_package:n #1 {
  \__luamml_patch_package:nn {#1} {
    \RequirePackage { luamml-patches-#1 }
  }
}
\RequirePackage { luamml-patches-kernel }
\__luamml_patch_package:n {amsmath}
\__luamml_patch_package:n {array}