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-
-% \section{\DTXCURR --- start of the package code}
-%
-% \begin{macrocode}
-%<*package&(XE|LU)>
-% \end{macrocode}
-%
-% \begin{macrocode}
-%<*LU>
-\RequirePackage{lualatex-math}
-%</LU>
-% \end{macrocode}
-%
-% \begin{macrocode}
-\ExplSyntaxOn
-% \end{macrocode}
-%
-% Variants needed from \pkg{expl3}:
-% \begin{macrocode}
-\cs_set_protected_nopar:Npn \exp_last_unbraced:NNx { \::N \::x_unbraced \::: }
-% \end{macrocode}
-%
-% For \pkg{fontspec}:
-% \begin{macrocode}
-\cs_generate_variant:Nn \fontspec_set_family:Nnn {Nx}
-\cs_generate_variant:Nn \fontspec_set_fontface:NNnn {NNx}
-% \end{macrocode}
-%
-% \paragraph{Conditionals}
-%
-% \begin{macrocode}
-\bool_new:N \l_@@_ot_math_bool
-\bool_new:N \l_@@_init_bool
-\bool_new:N \l_@@_implicit_alph_bool
-\bool_new:N \g_@@_mainfont_already_set_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}
-%
-% \paragraph{Variables}
-% \begin{macrocode}
-\int_new:N \g_@@_fam_int
-% \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_@@_mathstyle_tl
-\tl_new:N \l_@@_radicals_tl
-\tl_new:N \l_@@_nolimits_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}
-%
-% Variables:
-% \begin{macrocode}
-\seq_new:N \l_@@_missing_alph_seq
-\seq_new:N \l_@@_mathalph_seq
-\seq_new:N \l_@@_char_range_seq
-\seq_new:N \l_@@_mclass_range_seq
-\seq_new:N \l_@@_cmd_range_seq
-% \end{macrocode}
-%
-% \begin{macro}{\g_@@_alphabets_seq}
-% Each of math `style' (bfup, sfit, etc.) usually contains one or more `alphabets', which are currently |latin|, |Latin|, |greek|, |Greek|, |num|, and |misc|, although there's an implicit potential for more.
-% |misc| is not included in the official list to avoid checking code.
-% \begin{macrocode}
-\clist_new:N \g_@@_alphabets_seq
-\clist_set:Nn \g_@@_alphabets_seq { latin, Latin, greek, Greek, num }
-% \end{macrocode}
-% \end{macro}
-%
-% \begin{macrocode}
-\clist_new:N \g_@@_named_ranges_clist
-\clist_new:N \g_@@_char_nrange_clist
-\clist_new:N \g_@@_unknown_keys_clist
-\clist_new:N \g_@@_alphabet_clist
-% \end{macrocode}
-%
-% \begin{macro}{\g_@@_mathclasses_seq}
-% Every math class.
-% \begin{macrocode}
-\seq_new:N \g_@@_mathclasses_seq
-\seq_set_from_clist:Nn \g_@@_mathclasses_seq
- {
- \mathord,\mathalpha,\mathbin,\mathrel,\mathpunct,
- \mathop,
- \mathopen,\mathclose,
- \mathfence,\mathover,\mathunder,
- \mathaccent,\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 `named range' and 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_@@_named_ranges_seq
-\seq_new:N \g_@@_mathstyles_seq
-% \end{macrocode}
-% \end{macro}
-%
-% \begin{macrocode}
-\muskip_new:N \g_@@_primekern_muskip
-\muskip_gset:Nn \g_@@_primekern_muskip { -\thinmuskip/2 }% arbitrary
-\int_new:N \l_@@_primecount_int
-\prop_new:N \g_@@_supers_prop
-\prop_new:N \g_@@_subs_prop
-\tl_new:N \l_not_token_name_tl
-% \end{macrocode}
-%
-% \begin{macrocode}
-\tl_new:N \g_@@_slash_delimiter_usv
-\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 \g_@@_font_keyval_tl
-\tl_new:N \g_@@_family_tl
-\tl_new:N \g_@@_style_tl
-\tl_new:N \g_@@_remap_style_tl
-% \end{macrocode}
-%
-% \subsection{Extras}
-%
-% What might end up being provided by the kernel.
-%
-% \begin{macro}{\@@_glyph_if_exist:nTF}
-%: TODO: Generalise for arbitrary fonts! \cs{l_@@_font} is not always the one used for a specific glyph!!
-% \begin{macrocode}
-\prg_new_conditional:Nnn \@@_glyph_if_exist:n {p,TF,T,F}
- {
- \etex_iffontchar:D \l_@@_font #1 \scan_stop:
- \prg_return_true:
- \else:
- \prg_return_false:
- \fi:
- }
-% \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\@@_set_mathcode:nnnn}
-% \begin{macro}{\@@_set_mathcode:nnn}
-% \begin{macro}{\@@_set_mathchar:NNnn}
-% \begin{macro}{\@@_set_mathchar:cNnn}
-% \begin{macro}{\@@_set_delcode:nnn}
-% \begin{macro}{\@@_radical:nn}
-% \begin{macro}{\@@_delimiter:Nnn}
-% \begin{macro}{\@@_accent:nnn}
-% \begin{macro}{\@@_accent_keyword:}
-% These are all wrappers for the primitive commands that take numerical
-% input only.
-% \begin{macrocode}
-\cs_set:Npn \@@_set_mathcode:nnnn #1#2#3#4 {
- \Umathcode \int_eval:n {#1} =
- \mathchar@type#2 \csname sym#3\endcsname \int_eval:n {#4} \scan_stop:
-}
-\cs_set:Npn \@@_set_mathcode:nnn #1#2#3 {
- \Umathcode \int_eval:n {#1} =
- \mathchar@type#2 \csname sym#3\endcsname \int_eval:n {#1} \scan_stop:
-}
-\cs_set:Npn \@@_set_mathchar:NNnn #1#2#3#4 {
- \Umathchardef #1 =
- \mathchar@type#2 \csname sym#3\endcsname \int_eval:n {#4} \scan_stop:
-}
-\cs_new:Nn \@@_set_delcode:nnn {
- \Udelcode#2 = \csname sym#1\endcsname #3 \scan_stop:
-}
-\cs_new:Nn \@@_radical:nn {
- \Uradical \csname sym#1\endcsname #2 \scan_stop:
-}
-\cs_new:Nn \@@_delimiter:Nnn {
- \Udelimiter \mathchar@type#1 \csname sym#2\endcsname #3 \scan_stop:
-}
-\cs_new:Nn \@@_accent:nnn {
- \Umathaccent #1~ \mathchar@type\mathaccent \use:c { sym #2 } #3 \scan_stop:
-}
-% \end{macrocode}
-%
-% \begin{macrocode}
-\cs_generate_variant:Nn \@@_set_mathchar:NNnn {c}
-% \end{macrocode}
-% \end{macro}
-% \end{macro}
-% \end{macro}
-% \end{macro}
-% \end{macro}
-% \end{macro}
-% \end{macro}
-% \end{macro}
-% \end{macro}
-%
-%
-% \begin{macro}{\@@_char_gmake_mathactive:N}
-% \begin{macro}{\@@_char_gmake_mathactive:n}
-% \begin{macrocode}
-\cs_new:Nn \@@_char_gmake_mathactive:N
- {
- \global\mathcode `#1 = "8000 \scan_stop:
- }
-\cs_new:Nn \@@_char_gmake_mathactive:n
- {
- \global\mathcode #1 = "8000 \scan_stop:
- }
-% \end{macrocode}
-% \end{macro}
-% \end{macro}
-%
-% \subsection{Alphabet Unicode positions}
-%
-% Before we begin, let's define the positions of the various Unicode
-% alphabets so that our code is a little more readable.\footnote{`\textsc{u.s.v.}' stands
-% for `Unicode scalar value'.}
-%
-% \begin{macro}{\usv_set:nnn,\@@_to_usv:nn}
-% Rather than `readable', in the end, this makes the code more extensible.
-% \begin{macrocode}
-\cs_new:Nn \usv_set:nnn { \tl_const:cn { c_@@_#1_#2_usv } {#3} }
-\cs_new:Nn \@@_to_usv:nn { \use:c { c_@@_#1_#2_usv } }
-% \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}[TF]{\@@_usv_if_exist:nn}
-% \begin{macrocode}
-\prg_new_conditional:Nnn \@@_usv_if_exist:nn {T,F,TF}
- {
- \cs_if_exist:cTF { c_@@_#1_#2_usv }
- \prg_return_true: \prg_return_false:
- }
-% \end{macrocode}
-% \end{macro}
-%
-% \subsection{Programmers' interface}
-%
-% \begin{macro}{\unimath_get_mathstyle:}
-% This command expands to the currently math style.
-% \begin{macrocode}
-\cs_new:Nn \unimath_get_mathstyle:
- {
- \tl_use:N \l_@@_mathstyle_tl
- }
-% \end{macrocode}
-% \end{macro}
-%
-% \subsection{Overcoming \texorpdfstring{\cmd\@onlypreamble}{\textbackslash @onlypreamble}}
-%
-% The requirement of only setting up the maths fonts in the preamble is now removed.
-% The following list might be overly ambitious.
-% \begin{macrocode}
-\tl_map_inline:nn
- {
- \new@mathgroup\cdp@list\cdp@elt\DeclareMathSizes
- \@DeclareMathSizes\newmathalphabet\newmathalphabet@@\newmathalphabet@@@
- \DeclareMathVersion\define@mathalphabet\define@mathgroup\addtoversion
- \version@list\version@elt\alpha@list\alpha@elt
- \restore@mathversion\init@restore@version\dorestore@version\process@table
- \new@mathversion\DeclareSymbolFont\group@list\group@elt
- \new@symbolfont\SetSymbolFont\SetSymbolFont@\get@cdp
- \DeclareMathAlphabet\new@mathalphabet\SetMathAlphabet\SetMathAlphabet@
- \DeclareMathAccent\set@mathaccent\DeclareMathSymbol\set@mathchar
- \set@mathsymbol\DeclareMathDelimiter\@xxDeclareMathDelimiter
- \@DeclareMathDelimiter\@xDeclareMathDelimiter\set@mathdelimiter
- \set@@mathdelimiter\DeclareMathRadical\mathchar@type
- \DeclareSymbolFontAlphabet\DeclareSymbolFontAlphabet@
- }
- {
- \tl_remove_once:Nn \@preamblecmds {\do#1}
- }
-% \end{macrocode}
-%
-% \begin{macrocode}
-%</package&(XE|LU)>
-% \end{macrocode}