diff options
Diffstat (limited to 'macros/unicodetex/latex/unicode-math/um-code-main.dtx')
-rw-r--r-- | macros/unicodetex/latex/unicode-math/um-code-main.dtx | 700 |
1 files changed, 700 insertions, 0 deletions
diff --git a/macros/unicodetex/latex/unicode-math/um-code-main.dtx b/macros/unicodetex/latex/unicode-math/um-code-main.dtx new file mode 100644 index 0000000000..ff132044e0 --- /dev/null +++ b/macros/unicodetex/latex/unicode-math/um-code-main.dtx @@ -0,0 +1,700 @@ +%%^^A%% um-code-main.dtx -- part of UNICODE-MATH <wspr.io/unicode-math> +%%^^A%% Definition of `\setmainfont`. + +% \section{The main \cs{setmathfont} macro} +% +% \begin{macrocode} +%<*package> +% \end{macrocode} +% +% \begin{macro}{\@@_setmathfont:nn} +% \darg{keyval options} +% \darg{font name/file} +% \begin{macrocode} +\@@_cs_new:Nn \@@_setmathfont:nn + { +% \end{macrocode} +% \begin{itemize} +% \item Initialise all local variables. +% \item +% Erase any conception \LaTeX\ has of previously defined math symbol fonts; +% this allows \cmd\DeclareSymbolFont\ at any point in the document. +% \item +% Grab the current size information: +% (is this robust enough? Maybe it should be preceded by \cmd\normalsize). +% The macro \cmd\S@\meta{size} +% contains the definitions of the sizes used for maths letters, subscripts and subsubscripts in +% \cmd\tf@size, \cmd\sf@size, and \cmd\ssf@size, respectively. +% \end{itemize} +% \begin{macrocode} + + \@@_init:n {#2} + \cs_set_eq:NN \glb@currsize \scan_stop: + \cs_if_exist:cF { S@ \f@size } { \calculate@math@sizes } + \use:c { S@ \f@size } + + \keys_set_known:nnN {unicode-math} {#1} \l_@@_unknown_keys_clist + + \bool_if:NT \g_@@_init_bool \@@_fontspec_trial_font: + \bool_if:NT \g_@@_init_bool \@@_declare_math_sizes: + + \@@_fontspec_select_font: + \@@_setup_math_fam: + \bool_if:NT \g_@@_init_bool + { + \@@_setup_legacy_fam_two: + \@@_setup_legacy_fam_three: + } + + \@@_input_math_symbol_table: + +% \end{macrocode} +% \begin{itemize} +% \item the `once-off' setup that doesn't need to be per-font +% \item remap symbols that don't take their natural mathcode; +% \item activate any symbols that need to be math-active; +% \item assign delimiter codes for symbols that need to grow; +% \item setup the maths alphabets (\cs{symbf} etc.) --- +% this is an extensive part of the code; see Section~\ref{sec:mathmap}; +% \end{itemize} +% \begin{macrocode} + \bool_if:NT \g_@@_init_bool \@@_onceoff_setup: + \@@_remap_symbols: + \@@_setup_mathactives: + \@@_setup_delcodes: + \@@_setup_alphabets: + + %% TODO: what of the above should only be run for the "default"/"main" font? + + \bool_if:NTF \g_@@_init_bool + { + \bool_gset_true:N \g_@@_main_font_defined_bool +%<LU> \@@_mathparam_store: + \@@_log:n {default-math-font} + } + { +%<LU> \@@_mathparam_restore: + } + } +% \end{macrocode} +% \end{macro} +% +% \paragraph{Fall-back font} +% +% Want to load Latin Modern Math if nothing else. +% This needs to happen early so that all of the font-loading machinery executes before +% the other `AtBeginDocument' code. +% \begin{macrocode} +\AtBeginDocument { \bool_if:NF \g_@@_main_font_defined_bool \@@_load_lm: } +\@@_cs_new:Nn \@@_load_lm: + { + \setmathfont{latinmodern-math.otf}[BoldFont={latinmodern-math.otf}] + } +% \end{macrocode} +% +% \begin{macro}{\@@_init:n} +% Reset local variables. +% Default to defining the font for every math symbol character. +% \begin{macrocode} +\@@_cs_new:Nn \@@_init:n + { + \tl_set:Nn \l_@@_fontname_tl {#1} + \bool_gset_true:N \g_@@_ot_math_bool + \tl_set:Nn \l_@@_mversion_tl {normal} + \tl_set:Nn \l_@@_symfont_label_tl {operators} + + \tl_set:Nn \l_@@_script_features_tl {Style=MathScript} + \tl_set:Nn \l_@@_sscript_features_tl {Style=MathScriptScript} + \tl_set_eq:NN \l_@@_script_font_tl \l_@@_fontname_tl + \tl_set_eq:NN \l_@@_sscript_font_tl \l_@@_fontname_tl + + \bool_gset_true:N \g_@@_init_bool + \seq_gclear:N \g_@@_char_range_seq + \clist_clear:N \l_@@_mathmap_charints_clist + \seq_gclear:N \g_@@_mathalph_seq + \seq_clear:N \l_@@_missing_alph_seq + + \cs_set_eq:NN \_@@_sym:nnn \@@_process_symbol_noparse:nnn + \cs_set_eq:NN \@@_remap_symbol:nnn \@@_remap_symbol_noparse:nnn + \cs_set_eq:NN \@@_maybe_init_alphabet:n \@@_init_alphabet:n + \cs_set_eq:NN \@@_assign_delcode:nn \@@_assign_delcode_noparse:nn + \cs_set_eq:NN \@@_make_mathactive:nNN \@@_make_mathactive_noparse:nNN + } +% \end{macrocode} +% \end{macro} +% +% \begin{macro}{\@@_declare_math_sizes:} +% Set the math sizes according to the recommended font parameters. +% \begin{macrocode} +\tl_new:N \g_@@_main_font_cmd_tl +\cs_new:Nn \@@_sf_size: { \@@_fontdimen_pc_to_pt:nN {10} \g_@@_trial_font } +\cs_new:Nn \@@_ssf_size: { \@@_fontdimen_pc_to_pt:nN {11} \g_@@_trial_font } +\@@_cs_new:Nn \@@_declare_math_sizes: + { + \fp_gset:Nn \g_@@_size_tfsf_fp { (\f@size + \@@_sf_size: )/2 } + \fp_gset:Nn \g_@@_size_sfssf_fp { (\@@_sf_size: + \@@_ssf_size:)/2 } + + \dim_compare:nF { \fontdimen 10 \g_@@_trial_font == 0pt } + { + \DeclareMathSizes { \f@size } { \f@size } { \@@_sf_size: } { \@@_ssf_size: } + } + } +% \end{macrocode} +% \end{macro} +% +% +% +% \begin{macro}{\@@_fontspec_trial_font:} +% \begin{macrocode} +\@@_cs_new:Nn \@@_fontspec_trial_font: + { + \tl_set:Nx \l_@@_font_keyval_tl + { +%<LU> Renderer = Basic, + BoldItalicFont = {}, ItalicFont = {}, SmallCapsFont = {}, + Script = Math, +%<LU> FontAdjustment = { \@@_luatex_copy_fontdimens: }, + \l_@@_unknown_keys_clist + } + + \fontspec_set_family:Nxn \l_@@_trial_family_tl {\l_@@_font_keyval_tl} {\l_@@_fontname_tl} + + \group_begin: + \fontfamily { \l_@@_trial_family_tl } \selectfont + \exp_last_unbraced:NNo \@@_fontface_gset_eq:NN \g_@@_trial_font \font@name + \fontspec_if_script:nF {math} + { + \@@_warning:n {not-ot-math} + \bool_gset_false:N \g_@@_ot_math_bool + \bool_gset_false:N \g_@@_init_bool + } + \group_end: + + } +% \end{macrocode} +% \end{macro} +% +% \begin{macro}{\@@_fontspec_select_font:} +% \begin{macrocode} +\@@_cs_new:Nn \@@_fontspec_select_font: + { + \tl_set:Nx \l_@@_font_keyval_tl + { +%<LU> Renderer = Basic, + BoldItalicFont = {}, ItalicFont = {}, SmallCapsFont = {}, + Script = Math, + SizeFeatures = + { + { + Size = \fp_use:N \g_@@_size_tfsf_fp - + } , + { + Size = \fp_use:N \g_@@_size_sfssf_fp - \fp_use:N \g_@@_size_tfsf_fp , + Font = \l_@@_script_font_tl , + \l_@@_script_features_tl + } , + { + Size = - \fp_use:N \g_@@_size_sfssf_fp , + Font = \l_@@_sscript_font_tl , + \l_@@_sscript_features_tl + } + } , +%<LU> FontAdjustment = { \@@_luatex_copy_fontdimens: }, + \l_@@_unknown_keys_clist + } + + \fontspec_set_family:Nxn \l_@@_family_tl {\l_@@_font_keyval_tl} {\l_@@_fontname_tl} + + \int_gincr:N \g_@@_fonts_used_int + \group_begin: + \fontfamily { \l_@@_family_tl } \selectfont + \exp_last_unbraced:Nno \@@_fontface_gset_eq:cN {g_@@_mathfont_ \int_use:N \g_@@_fonts_used_int _font} \font@name + \tl_gset:Nx \g_@@_curr_font_cmd_tl { \exp_not:c {g_@@_mathfont_ \int_use:N \g_@@_fonts_used_int _font} } + \bool_if:NT \g_@@_init_bool + { + \exp_last_unbraced:NNo \@@_fontface_gset_eq:NN \l_@@_font \font@name + } + \group_end: + } +% \end{macrocode} +% \end{macro} +% +% \begin{macrocode} +\tl_gset:Nn \g_@@_main_font_cmd_tl { \l_@@_font } +\tl_gset:Nn \g_@@_sqrt_font_cmd_tl { \l_@@_font } +\tl_gset:Nn \g_@@_prime_font_cmd_tl { \l_@@_font } +% \end{macrocode} +% +% \begin{macro}{\@@_luatex_copy_fontdimens:} +% This performs a once-off copy of the LuaTeX math params into XeTeX-like fontdimens. +% While the list is somewhat comprehensive, these are really only for backwards compatibility +% and to allow a little shared code. They shouldn't be relied upon, since LuaTeX users +% might change the math params, which wouldn't be reflected in the fontdimens. +% \begin{macrocode} +%<*LU> +\@@_cs_new:Nn \@@_luatex_copy_fontdimens: + { + \@@_fontdimen_from_param:nn {10} {ScriptPercentScaleDown} + \@@_fontdimen_from_param:nn {11} {ScriptScriptPercentScaleDown} + \@@_fontdimen_from_param:nn {15} {AxisHeight} + \@@_fontdimen_from_param:nn {18} {SubscriptShiftDown} + \@@_fontdimen_from_param:nn {20} {SubscriptBaselineDropMin} + \@@_fontdimen_from_param:nn {21} {SuperscriptShiftUp} + \@@_fontdimen_from_param:nn {22} {SuperscriptShiftUpCramped} + \@@_fontdimen_from_param:nn {24} {SuperscriptBaselineDropMax} + \@@_fontdimen_from_param:nn {28} {UpperLimitGapMin} + \@@_fontdimen_from_param:nn {29} {UpperLimitBaselineRiseMin} + \@@_fontdimen_from_param:nn {30} {LowerLimitGapMin} + \@@_fontdimen_from_param:nn {31} {LowerLimitBaselineDropMin} + \@@_fontdimen_from_param:nn {32} {StackTopShiftUp} + \@@_fontdimen_from_param:nn {42} {FractionNumeratorShiftUp} + \@@_fontdimen_from_param:nn {43} {FractionNumeratorDisplayStyleShiftUp} + \@@_fontdimen_from_param:nn {44} {FractionDenominatorShiftDown} + \@@_fontdimen_from_param:nn {45} {FractionDenominatorDisplayStyleShiftDown} + \@@_fontdimen_from_param:nn {48} {FractionRuleThickness} + } +%</LU> +% \end{macrocode} +% \end{macro} +% +% \begin{macro}{\@@_setup_math_fam:} +% \begin{macrocode} +\@@_cs_new:Nn \@@_setup_math_fam: + { + \cs_if_exist:cF { sym \l_@@_symfont_label_tl } + { + \DeclareSymbolFont{\l_@@_symfont_label_tl} + {\encodingdefault}{\l_@@_family_tl}{\mddefault}{\shapedefault} + } + \SetSymbolFont{\l_@@_symfont_label_tl}{\l_@@_mversion_tl} + {\encodingdefault}{\l_@@_family_tl}{\mddefault}{\shapedefault} +% \end{macrocode} +% Set the bold math version. +% \begin{macrocode} + \str_if_eq:eeT {\l_@@_mversion_tl} {normal} + { + \SetSymbolFont{\l_@@_symfont_label_tl}{bold} + {\encodingdefault}{\l_@@_family_tl}{\bfdefault}{\shapedefault} + } + } +% \end{macrocode} +% \end{macro} +% +% \begin{macro}{\@@_setup_legacy_fam_two:} +% \TeX\ won't load the same font twice at the same scale, so we need to magnify this one by an imperceptable amount. +% Note that for extreme font sizes, this scaling value might need to be adjusted. +% 1.0001 should be enough for reasonable use cases however. +% \begin{macrocode} +\@@_cs_new:Nn \@@_setup_legacy_fam_two: + { + \fontspec_set_family:Nxn \l_@@_fam_two_tl + { + \l_@@_font_keyval_tl, + ScaleAgain = 1.0001, + FontAdjustment = + { + \@@_copy_fontdimen:nnN { 8} {43} \g_@@_main_font_cmd_tl + \@@_copy_fontdimen:nnN { 9} {42} \g_@@_main_font_cmd_tl + \@@_copy_fontdimen:nnN {10} {32} \g_@@_main_font_cmd_tl + \@@_copy_fontdimen:nnN {11} {45} \g_@@_main_font_cmd_tl + \@@_copy_fontdimen:nnN {12} {44} \g_@@_main_font_cmd_tl + \@@_copy_fontdimen:nnN {13} {21} \g_@@_main_font_cmd_tl + \@@_copy_fontdimen:nnN {14} {21} \g_@@_main_font_cmd_tl + \@@_copy_fontdimen:nnN {15} {22} \g_@@_main_font_cmd_tl + \@@_copy_fontdimen:nnN {16} {18} \g_@@_main_font_cmd_tl + \@@_copy_fontdimen:nnN {17} {18} \g_@@_main_font_cmd_tl + \@@_copy_fontdimen:nnN {18} {24} \g_@@_main_font_cmd_tl + \@@_copy_fontdimen:nnN {19} {20} \g_@@_main_font_cmd_tl + \@@_copy_fontdimen:nnN {22} {15} \g_@@_main_font_cmd_tl + \@@_zero_fontdimen:n {20} % delim1 = FractionDelimiterDisplaySize + \@@_zero_fontdimen:n {21} % delim2 = FractionDelimiterSize + } + } {\l_@@_fontname_tl} + + \SetSymbolFont{symbols}{\l_@@_mversion_tl} + {\encodingdefault}{\l_@@_fam_two_tl}{\mddefault}{\shapedefault} + + \str_if_eq:eeT {\l_@@_mversion_tl} {normal} + { + \SetSymbolFont{symbols}{bold} + {\encodingdefault}{\l_@@_fam_two_tl}{\bfdefault}{\shapedefault} + } + } +% \end{macrocode} +% \end{macro} +% +% \begin{macro}{\@@_setup_legacy_fam_three:} +% Similarly, this font is shrunk by an imperceptable amount for \TeX\ to load it again. +% \begin{macrocode} +\@@_cs_new:Nn \@@_setup_legacy_fam_three: + { + \fontspec_set_family:Nxn \l_@@_fam_three_tl + { + \l_@@_font_keyval_tl, + ScaleAgain = 0.9999, + FontAdjustment = { + \@@_copy_fontdimen:nnN { 8} {48} \g_@@_main_font_cmd_tl + \@@_copy_fontdimen:nnN { 9} {28} \g_@@_main_font_cmd_tl + \@@_copy_fontdimen:nnN {10} {30} \g_@@_main_font_cmd_tl + \@@_copy_fontdimen:nnN {11} {29} \g_@@_main_font_cmd_tl + \@@_copy_fontdimen:nnN {12} {31} \g_@@_main_font_cmd_tl + \@@_zero_fontdimen:n {13} + } + } {\l_@@_fontname_tl} + + \SetSymbolFont{largesymbols}{\l_@@_mversion_tl} + {\encodingdefault}{\l_@@_fam_three_tl}{\mddefault}{\shapedefault} + + \str_if_eq:eeT {\l_@@_mversion_tl} {normal} + { + \SetSymbolFont{largesymbols}{bold} + {\encodingdefault}{\l_@@_fam_three_tl}{\bfdefault}{\shapedefault} + } + } +% \end{macrocode} +% \end{macro} +% +% \begin{macro}{\@@_onceoff_setup:} +% \begin{macrocode} +\@@_cs_new:Nn \@@_onceoff_setup: + { + \@@_set_delcode:nnn {operators} {`\.} {0} + } +% \end{macrocode} +% \end{macro} +% +% \subsection{Functions for setting up symbols with mathcodes} +% \seclabel{mathsymbol} +% +% \begin{macro}{\@@_process_symbol_noparse:nnn} +% \begin{macro}{\@@_process_symbol_parse:nnn} +% If the \feat{range} font feature has been used, then only +% a subset of the Unicode glyphs are to be defined. +% See \secref{rangeproc} for the code that enables this. +% \begin{macrocode} +\cs_set:Nn \@@_process_symbol_noparse:nnn + { + \@@_set_mathsymbol:nNNn {\l_@@_symfont_label_tl} #2 #3 {#1} + } +% \end{macrocode} +% \begin{macrocode} +\cs_set:Nn \@@_process_symbol_parse:nnn + { + \@@_if_char_spec:nNT {#1} {#3} + { + \@@_process_symbol_noparse:nnn {#1} {#2} {#3} + } + } +% \end{macrocode} +% \end{macro} +% \end{macro} +% +% \begin{macro}{\@@_remap_symbols:} +% This function is used to define the mathcodes for those chars which should +% be mapped to a different glyph than themselves. +% \begin{macrocode} +\@@_cs_new:Nn \@@_remap_symbols: + { + \@@_remap_symbol:nnn {`\-} {\mathbin} {"2212} + \@@_remap_symbol:nnn {`\*} {\mathbin} {"02217}% text asterisk to "centred asterisk" + \bool_if:NF \g_@@_literal_colon_bool + { + \@@_remap_symbol:nnn {`\:} {\mathrel} {"02236}% colon to ratio (i.e., punct to rel) + } + } +% \end{macrocode} +% \end{macro} +% +% \begin{macro}{\@@_remap_symbol_noparse:nnn} +% \begin{macro}{\@@_remap_symbol_parse:nnn} +% Where |\@@_remap_symbol:nnn| is defined to be one of these two, depending +% on the range setup: +% \begin{macrocode} +\cs_new:Nn \@@_remap_symbol_parse:nnn + { + \@@_if_char_spec:nNT {#3} {#2} + { \@@_remap_symbol_noparse:nnn {#1} {#2} {#3} } + } +\cs_new:Nn \@@_remap_symbol_noparse:nnn + { + \clist_map_inline:nn {#1} + { \@@_set_mathcode:nnnn {##1} {#2} {\l_@@_symfont_label_tl} {#3} } + } +% \end{macrocode} +% \end{macro} +% \end{macro} +% +% \subsection{Active math characters} +% +% There are more math active chars later in the subscript/superscript section. +% But they don't need to be able to be typeset directly. +% +% \begin{macro}{\@@_setup_mathactives:} +% TODO: if not an OpenType math font, we should ignore doing anything with primes. +% This needs a revamped `range` feature, I think. +% \begin{macrocode} +\@@_cs_new:Nn \@@_setup_mathactives: + { + \@@_make_mathactive:nNN {"2032} \@@_prime_single_mchar \mathord + \@@_make_mathactive:nNN {"2033} \@@_prime_double_mchar \mathord + \@@_make_mathactive:nNN {"2034} \@@_prime_triple_mchar \mathord + \@@_make_mathactive:nNN {"2057} \@@_prime_quad_mchar \mathord + \@@_make_mathactive:nNN {"2035} \@@_backprime_single_mchar \mathord + \@@_make_mathactive:nNN {"2036} \@@_backprime_double_mchar \mathord + \@@_make_mathactive:nNN {"2037} \@@_backprime_triple_mchar \mathord + \@@_make_mathactive:nNN {`\'} \mathstraightquote \mathord + \@@_make_mathactive:nNN {`\`} \mathbacktick \mathord + } +% \end{macrocode} +% \end{macro} +% +% \begin{macro}{\@@_make_mathactive:nNN} +% Makes |#1| a mathactive char, and gives cs |#2| the meaning of mathchar |#1| +% with class |#3|. +% You are responsible for giving active |#1| a particular meaning! +% \begin{macrocode} +\cs_new:Nn \@@_make_mathactive_parse:nNN + { + \@@_if_char_spec:nNT {#1} #3 + { \@@_make_mathactive_noparse:nNN {#1} #2 #3 } + } +% \end{macrocode} +% +% \begin{macrocode} +\cs_new:Nn \@@_make_mathactive_noparse:nNN + { + \@@_set_mathchar:NNnn #2 #3 {\l_@@_symfont_label_tl} {#1} + \@@_char_gmake_mathactive:n {#1} + } +% \end{macrocode} +% \end{macro} +% +% +% \subsection{Delimiter codes} +% +% \begin{macro}{\@@_assign_delcode:nn} +% \begin{macrocode} +\cs_new:Nn \@@_assign_delcode_noparse:nn + { + \@@_set_delcode:nnn \l_@@_symfont_label_tl {#1} {#2} + } +% \end{macrocode} +% +% \begin{macrocode} +\cs_new:Nn \@@_assign_delcode_parse:nn + { + \@@_if_char_spec:nNT {#2} \@nil + { + \@@_assign_delcode_noparse:nn {#1} {#2} + } + } +% \end{macrocode} +% \end{macro} +% +% \begin{macro}{\@@_assign_delcode:n} +% Shorthand. +% \begin{macrocode} +\cs_new:Nn \@@_assign_delcode:n { \@@_assign_delcode:nn {#1} {#1} } +% \end{macrocode} +% \end{macro} +% +% \begin{macro}{\@@_setup_delcodes:} +% Some symbols that aren't mathopen/mathclose still need to have delimiter codes assigned. +% The list of vertical arrows may be incomplete. +% On the other hand, many fonts won't support them all being stretchy. +% And some of them are probably not meant to stretch, either. But adding them here doesn't hurt. +% \begin{macrocode} +\@@_cs_new:Nn \@@_setup_delcodes: + { + \@@_assign_delcode:nn {`\/} {\g_@@_slash_delimiter_usv} + \@@_assign_delcode:nn {"2044} {\g_@@_slash_delimiter_usv} % fracslash + \@@_assign_delcode:nn {"2215} {\g_@@_slash_delimiter_usv} % divslash + \@@_assign_delcode:n {"005C} % backslash + \@@_assign_delcode:nn {`\<} {"27E8} % angle brackets with ascii notation + \@@_assign_delcode:nn {`\>} {"27E9} % angle brackets with ascii notation + \@@_assign_delcode:n {"2191} % up arrow + \@@_assign_delcode:n {"2193} % down arrow + \@@_assign_delcode:n {"2195} % updown arrow + \@@_assign_delcode:n {"219F} % up arrow twohead + \@@_assign_delcode:n {"21A1} % down arrow twohead + \@@_assign_delcode:n {"21A5} % up arrow from bar + \@@_assign_delcode:n {"21A7} % down arrow from bar + \@@_assign_delcode:n {"21A8} % updown arrow from bar + \@@_assign_delcode:n {"21BE} % up harpoon right + \@@_assign_delcode:n {"21BF} % up harpoon left + \@@_assign_delcode:n {"21C2} % down harpoon right + \@@_assign_delcode:n {"21C3} % down harpoon left + \@@_assign_delcode:n {"21C5} % arrows up down + \@@_assign_delcode:n {"21F5} % arrows down up + \@@_assign_delcode:n {"21C8} % arrows up up + \@@_assign_delcode:n {"21CA} % arrows down down + \@@_assign_delcode:n {"21D1} % double up arrow + \@@_assign_delcode:n {"21D3} % double down arrow + \@@_assign_delcode:n {"21D5} % double updown arrow + \@@_assign_delcode:n {"21DE} % up arrow double stroke + \@@_assign_delcode:n {"21DF} % down arrow double stroke + \@@_assign_delcode:n {"21E1} % up arrow dashed + \@@_assign_delcode:n {"21E3} % down arrow dashed + \@@_assign_delcode:n {"21E7} % up white arrow + \@@_assign_delcode:n {"21E9} % down white arrow + \@@_assign_delcode:n {"21EA} % up white arrow from bar + \@@_assign_delcode:n {"21F3} % updown white arrow + } +% \end{macrocode} +% \end{macro} +% +% \subsection{(Big) operators} +% +% The engine does what is necessary to deal with big operators for us +% automatically with \cmd\Umathchardef. +% However, the limits aren't set automatically; that is, we want to define, +% a la Plain \TeX\ \etc, |\def\int{\intop\nolimits}|, so there needs to be a +% transformation from \cmd\int\ to \cmd\intop\ during the expansion of +% \cmd\_@@_sym:nnn\ in the appropriate contexts. +% +% \begin{macro}{\l_@@_nolimits_tl} +% This macro is a sequence containing those maths operators that require a +% \cmd\nolimits\ suffix. +% This list is used when processing |unicode-math-table.tex| to define such +% commands automatically (see the macro \cs{@@_set_mathsymbol:nNNn}). +% I've chosen essentially just the operators that look like integrals; +% hopefully a better mathematician can help me out here. +% I've a feeling that it's more useful \emph{not} to include the multiple +% integrals such as $\iiiint$, but that might be a matter of preference. +% \begin{macrocode} +\tl_set:Nn \l_@@_nolimits_tl + { + \int\iint\iiint\iiiint\oint\oiint\oiiint + \intclockwise\varointclockwise\ointctrclockwise\sumint + \intbar\intBar\fint\cirfnint\awint\rppolint + \scpolint\npolint\pointint\sqint\intlarhk\intx + \intcap\intcup\upint\lowint + } +% \end{macrocode} +% \end{macro} +% +% \subsection{Radicals} +% +% \begin{macro}{\l_@@_radicals_tl} +% The radicals are organised in \cs{@@_set_mathsymbol:nNNn}. +% We organise radicals in the same way as nolimits-operators. +% (\cs{cuberoot} and \cs{fourthroot}, don't seem to behave as proper radicals.) +% \begin{macrocode} +\tl_set:Nn \l_@@_radicals_tl {\sqrt \longdivision \cuberoot \fourthroot} +% \end{macrocode} +% \end{macro} +% +% \subsection{Fontdimens} +% +% \begin{macrocode} +%<*LU> +% \end{macrocode} +% +% \begin{macro}{\@@_mathparam_restore:} +% \cs{glb@settings} might not be necessary but is included for symmetry. +% If the maths font were to be loaded later it would clobber our mathparam settings, so +% this seems like a sensible move. +% \begin{macrocode} +\@@_cs_new:Nn \@@_mathparam_restore: + { + \glb@settings + \tl_use:N \g_@@_mathparam_settings_tl + } +% \end{macrocode} +% \end{macro} +% +% \begin{macro}{\@@_mathparam_store:} +% \cs{glb@settings} is called to force maths fonts loading \emph{now} so the mathparams +% are up-to-date. +% \begin{macrocode} +\@@_cs_new:Nn \@@_mathparam_store: + { + \glb@settings + \tl_gset:Nx \g_@@_mathparam_settings_tl + { + \@@_mathparam_store_aux:N \displaystyle + \@@_mathparam_store_aux:N \textstyle + \@@_mathparam_store_aux:N \scriptstyle + \@@_mathparam_store_aux:N \scriptscriptstyle + } + } +% \end{macrocode} +% +% \begin{macrocode} +\cs_set:Nn \@@_mathparam_store_aux:N + { + \Umathquad #1 = \the \Umathquad #1 \scan_stop: + \Umathaxis #1 = \the \Umathaxis #1 \scan_stop: + \Umathoperatorsize #1 = \the \Umathoperatorsize #1 \scan_stop: + \Umathoverbarkern #1 = \the \Umathoverbarkern #1 \scan_stop: + \Umathoverbarrule #1 = \the \Umathoverbarrule #1 \scan_stop: + \Umathoverbarvgap #1 = \the \Umathoverbarvgap #1 \scan_stop: + \Umathunderbarkern #1 = \the \Umathunderbarkern #1 \scan_stop: + \Umathunderbarrule #1 = \the \Umathunderbarrule #1 \scan_stop: + \Umathunderbarvgap #1 = \the \Umathunderbarvgap #1 \scan_stop: + \Umathradicalkern #1 = \the \Umathradicalkern #1 \scan_stop: + \Umathradicalrule #1 = \the \Umathradicalrule #1 \scan_stop: + \Umathradicalvgap #1 = \the \Umathradicalvgap #1 \scan_stop: + \Umathradicaldegreebefore #1 = \the \Umathradicaldegreebefore #1 \scan_stop: + \Umathradicaldegreeafter #1 = \the \Umathradicaldegreeafter #1 \scan_stop: + \Umathradicaldegreeraise #1 = \the \Umathradicaldegreeraise #1 \scan_stop: + \Umathstackvgap #1 = \the \Umathstackvgap #1 \scan_stop: + \Umathstacknumup #1 = \the \Umathstacknumup #1 \scan_stop: + \Umathstackdenomdown #1 = \the \Umathstackdenomdown #1 \scan_stop: + \Umathfractionrule #1 = \the \Umathfractionrule #1 \scan_stop: + \Umathfractionnumvgap #1 = \the \Umathfractionnumvgap #1 \scan_stop: + \Umathfractionnumup #1 = \the \Umathfractionnumup #1 \scan_stop: + \Umathfractiondenomvgap #1 = \the \Umathfractiondenomvgap #1 \scan_stop: + \Umathfractiondenomdown #1 = \the \Umathfractiondenomdown #1 \scan_stop: + \Umathfractiondelsize #1 = \the \Umathfractiondelsize #1 \scan_stop: + \Umathlimitabovevgap #1 = \the \Umathlimitabovevgap #1 \scan_stop: + \Umathlimitabovebgap #1 = \the \Umathlimitabovebgap #1 \scan_stop: + \Umathlimitabovekern #1 = \the \Umathlimitabovekern #1 \scan_stop: + \Umathlimitbelowvgap #1 = \the \Umathlimitbelowvgap #1 \scan_stop: + \Umathlimitbelowbgap #1 = \the \Umathlimitbelowbgap #1 \scan_stop: + \Umathlimitbelowkern #1 = \the \Umathlimitbelowkern #1 \scan_stop: + \Umathoverdelimitervgap #1 = \the \Umathoverdelimitervgap #1 \scan_stop: + \Umathoverdelimiterbgap #1 = \the \Umathoverdelimiterbgap #1 \scan_stop: + \Umathunderdelimitervgap #1 = \the \Umathunderdelimitervgap #1 \scan_stop: + \Umathunderdelimiterbgap #1 = \the \Umathunderdelimiterbgap #1 \scan_stop: + \Umathsubshiftdrop #1 = \the \Umathsubshiftdrop #1 \scan_stop: + \Umathsubshiftdown #1 = \the \Umathsubshiftdown #1 \scan_stop: + \Umathsupshiftdrop #1 = \the \Umathsupshiftdrop #1 \scan_stop: + \Umathsupshiftup #1 = \the \Umathsupshiftup #1 \scan_stop: + \Umathsubsupshiftdown #1 = \the \Umathsubsupshiftdown #1 \scan_stop: + \Umathsubtopmax #1 = \the \Umathsubtopmax #1 \scan_stop: + \Umathsupbottommin #1 = \the \Umathsupbottommin #1 \scan_stop: + \Umathsupsubbottommax #1 = \the \Umathsupsubbottommax #1 \scan_stop: + \Umathsubsupvgap #1 = \the \Umathsubsupvgap #1 \scan_stop: + \Umathspaceafterscript #1 = \the \Umathspaceafterscript #1 \scan_stop: + \Umathconnectoroverlapmin #1 = \the \Umathconnectoroverlapmin #1 \scan_stop: + } +% \end{macrocode} +% \end{macro} +% +% \begin{macrocode} +%</LU> +% \end{macrocode} +% +% \begin{macrocode} +%</package> +% \end{macrocode} + +\endinput + +% /© +% +% ------------------------------------------------ +% 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://www.latex-project.org/lppl/>. +% ------------------------------------------------ +% Copyright 2006-2019 Will Robertson, LPPL "maintainer" +% Copyright 2010-2017 Philipp Stephani +% Copyright 2011-2017 Joseph Wright +% Copyright 2012-2015 Khaled Hosny +% ------------------------------------------------ +% +% ©/ |