um-code-variables.dtx

%%^^A%% um-code-variables.dtx -- part of UNICODE-MATH <wspr.io/unicode-math>
%%^^A%% Declaration of all code-level variables used in the package.

% \section{Variable initialisation}
%
%    \begin{macrocode}
%<*package>
%    \end{macrocode}
%
%
% \subsection{bool}
%
% True if using a proper OpenType font with unicode maths
%    \begin{macrocode}
\bool_new:N \g_@@_ot_math_bool
%    \end{macrocode}
%
% Set when \cs{setmathfont} is run to trap the problem of no main font defined.
%    \begin{macrocode}
\bool_new:N \g_@@_main_font_defined_bool
%    \end{macrocode}
%
%    \begin{macrocode}
\bool_new:N \g_@@_init_bool
\bool_new:N \l_@@_implicit_alph_bool
%    \end{macrocode}
% For \opt{math-style}:
%    \begin{macrocode}
\bool_new:N \g_@@_literal_bool
\bool_new:N \g_@@_upLatin_bool
\bool_new:N \g_@@_uplatin_bool
\bool_new:N \g_@@_upGreek_bool
\bool_new:N \g_@@_upgreek_bool
%    \end{macrocode}
% For \opt{bold-style}:
%    \begin{macrocode}
\bool_new:N \g_@@_bfliteral_bool
\bool_new:N \g_@@_bfupLatin_bool
\bool_new:N \g_@@_bfuplatin_bool
\bool_new:N \g_@@_bfupGreek_bool
\bool_new:N \g_@@_bfupgreek_bool
%    \end{macrocode}
% For \opt{sans-style}:
%    \begin{macrocode}
\bool_new:N \g_@@_upsans_bool
\bool_new:N \g_@@_sfliteral_bool
%    \end{macrocode}
% For assorted package options:
%    \begin{macrocode}
\bool_new:N \g_@@_upNabla_bool
\bool_new:N \g_@@_uppartial_bool
\bool_new:N \g_@@_literal_Nabla_bool
\bool_new:N \g_@@_literal_partial_bool
\bool_new:N \l_@@_smallfrac_bool
\bool_new:N \g_@@_literal_colon_bool
\bool_new:N \g_@@_mathrm_text_bool
\bool_new:N \g_@@_mathit_text_bool
\bool_new:N \g_@@_mathbf_text_bool
\bool_new:N \g_@@_mathsf_text_bool
\bool_new:N \g_@@_mathtt_text_bool
%    \end{macrocode}
%
% \subsection{int}
%
%    \begin{macrocode}
\int_new:N \g_@@_fam_int
\int_new:N \g_@@_fonts_used_int
\int_new:N \l_@@_primecount_int
%    \end{macrocode}
%
% \subsection{tl}
%
%    \begin{macrocode}
\tl_if_exist:NF \g_@@_secret_hook_tl { \tl_new:N \g_@@_secret_hook_tl }
%    \end{macrocode}
%
% For displaying in warning messages, etc.:
%    \begin{macrocode}
\tl_const:Nn \c_@@_math_alphabet_name_latin_tl {Latin,~lowercase}
\tl_const:Nn \c_@@_math_alphabet_name_Latin_tl {Latin,~uppercase}
\tl_const:Nn \c_@@_math_alphabet_name_greek_tl {Greek,~lowercase}
\tl_const:Nn \c_@@_math_alphabet_name_Greek_tl {Greek,~uppercase}
\tl_const:Nn \c_@@_math_alphabet_name_num_tl   {Numerals}
\tl_const:Nn \c_@@_math_alphabet_name_misc_tl  {Misc.}
%    \end{macrocode}
%
%    \begin{macrocode}
\tl_new:N \l_@@_style_tl
\tl_new:N \l_@@_family_tl
\tl_new:N \l_@@_alphabet_tl
\tl_new:N \l_@@_fontname_tl
\tl_new:N \l_@@_symfont_label_tl
\tl_new:N \l_@@_remap_style_tl
\tl_new:N \l_@@_fam_two_tl
\tl_new:N \l_@@_fam_three_tl
\tl_new:N \l_@@_curr_named_slot
%    \end{macrocode}
%
%    \begin{macrocode}
\tl_new:N \l_@@_tmpa_tl
\tl_new:N \l_@@_tmpb_tl
\tl_new:N \l_@@_tmpc_tl
\tl_new:N \l_@@_mathstyle_tl
\tl_new:N \l_@@_radicals_tl
\tl_new:N \l_@@_nolimits_tl
\tl_new:N \l_@@_trial_family_tl
\tl_new:N \l_@@_ss_chain_tl
\tl_new:N \l_@@_tmpa_key_tl
%    \end{macrocode}
%
% Used to store the font switch for the \cs{operator@font}.
%    \begin{macrocode}
\tl_new:N \g_@@_operator_mathfont_tl
%    \end{macrocode}
%
%    \begin{macrocode}
\tl_new:N \g_@@_slash_delimiter_usv
\tl_new:N \g_@@_mathparam_settings_tl
\tl_new:N \l_@@_mathtable_tl
\tl_new:N \g_@@_mathtable_tl
\tl_new:N \g_@@_fontname_tl
\tl_new:N \g_@@_mversion_tl
\tl_new:N \g_@@_symfont_tl
\tl_new:N \l_@@_font_keyval_tl
\tl_new:N \g_@@_family_tl
\tl_new:N \g_@@_style_tl
\tl_new:N \g_@@_remap_style_tl
\tl_new:N \l_@@_not_token_name_tl
\tl_new:N \g_@@_curr_font_cmd_tl
\tl_new:N \g_@@_sqrt_font_cmd_tl
\tl_new:N \g_@@_prime_font_cmd_tl
%    \end{macrocode}
%
% \begin{macro}{\g_@@_mathparam_store_tl}
% Used to store and restore the math parameters used in Lua\TeX.
% This is done to `save' the values of the \emph{first} (or main)
% maths font loaded, rather than (as per Lua\TeX\ defaults) the last.
%    \begin{macrocode}
%<*LU>
\tl_new:N \g_@@_mathparam_store_tl
%</LU>
%    \end{macrocode}
% \end{macro}
%
% \subsection{clist}
%
%    \begin{macrocode}
\clist_new:N \g_@@_char_nrange_clist
\clist_new:N \g_@@_unknown_keys_clist
\clist_new:N \g_@@_alphabet_clist
\clist_new:N \l_@@_mathmap_charints_clist
\clist_new:N \l_@@_unknown_keys_clist
\clist_new:N \l_@@_keyval_clist
\clist_new:N \l_@@_alphabet_clist
%    \end{macrocode}
%
%    \begin{macrocode}
\clist_new:N \g_@@_bad_alpha_clist
\clist_gput_right:Nx \g_@@_bad_alpha_clist { \tl_to_str:n {bf} }
\clist_gput_right:Nx \g_@@_bad_alpha_clist { \tl_to_str:n {sf} }
\clist_gput_right:Nx \g_@@_bad_alpha_clist { \tl_to_str:n {bfsf} }
%    \end{macrocode}
%
% \subsection{seq}
%
%    \begin{macrocode}
\seq_new:N \l_@@_missing_alph_seq
\seq_new:N \g_@@_mathalph_seq
\seq_new:N \g_@@_char_range_seq
\seq_new:N \g_@@_mclass_range_seq
%    \end{macrocode}
%
% \begin{macro}{\g_@@_mathclasses_seq}
% Every math class.
%    \begin{macrocode}
\seq_new:N \g_@@_mathclasses_seq
\seq_gset_from_clist:Nn \g_@@_mathclasses_seq
  {
    \mathord,\mathalpha,\mathbin,\mathrel,\mathpunct,
     \mathop,
    \mathopen,\mathclose,
    \mathfence,\mathover,\mathunder,
     \mathaccent,\mathaccentoverlay,\mathbotaccent,\mathaccentwide,\mathbotaccentwide
  }
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\g_@@_default_mathalph_seq}
% This sequence stores the alphabets in each math style.
%    \begin{macrocode}
\seq_new:N \g_@@_default_mathalph_seq
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\g_@@_mathstyles_seq}
% This is every `math style' known to \pkg{unicode-math}.
% A named range is such as "bfit" and "sfit", which are also math styles (with \cs{symbfit} and \cs{symsfit}).
% `Mathstyles' are a superset of named ranges and also include commands such as \cs{symbf} and \cs{symsf}.
%
% N.B. for parsing purposes `named ranges' are defined as strings!
%    \begin{macrocode}
\seq_new:N \g_@@_mathstyles_seq
%    \end{macrocode}
% \end{macro}
%
% \subsection{prop}
%
%    \begin{macrocode}
\prop_new:N \g_@@_supers_prop
\prop_new:N \g_@@_subs_prop
%    \end{macrocode}
%
% \subsection{muskip}
%
%    \begin{macrocode}
\muskip_new:N \g_@@_primekern_muskip
\muskip_gset:Nn \g_@@_primekern_muskip { -\thinmuskip/2 }% arbitrary
%    \end{macrocode}
%
% \subsection{fp}
%
%    \begin{macrocode}
\fp_new:N \g_@@_size_tfsf_fp
\fp_new:N \g_@@_size_sfssf_fp
%    \end{macrocode}
%
% \subsection{quark}
%
% \begin{macro}{\q_unicode_math}
% Used as a flag within control sequences to check they're recognised by the package.
%    \begin{macrocode}
\quark_new:N \q_unicode_math
%    \end{macrocode}
% \end{macro}
%
%    \begin{macrocode}
%</package>
%    \end{macrocode}

\endinput

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% The UNICODE-MATH package  <wspr.io/unicode-math>
% ------------------------------------------------
% This package is free software and may be redistributed and/or modified under
% the conditions of the LaTeX Project Public License, version 1.3c or higher
% (your choice): <http:https://www.latex-project.org/lppl/>.
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% Copyright 2010-2017  Philipp Stephani
% Copyright 2011-2017  Joseph Wright
% Copyright 2012-2015  Khaled Hosny
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