summaryrefslogtreecommitdiff
path: root/Master/texmf-dist/source/latex/unicode-math/um-code-mathtext.dtx
blob: c576d63770b2960e615662fdc0ba73157100a61d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
%%^^A%% um-code-mathtext.dtx -- part of UNICODE-MATH <wspr.io/unicode-math>
%%^^A%% The "math text" commands such as `\mathbf` and co.

% \section{Maths text commands}
%
%    \begin{macrocode}
%<*package>
%    \end{macrocode}
%
% \subsection{\cs{setmathfontface}}
%
% \begin{macro}{\@@_setmathfontface:Nnn}
%    \begin{macrocode}
\keys_define:nn {@@_mathface}
  {
    version .tl_set:N = \l_@@_mversion_tl
  }
%    \end{macrocode}
%
%    \begin{macrocode}
\cs_set:Nn \@@_setmathfontface:Nnn
  {
    \tl_clear:N \l_@@_mversion_tl

    \keys_set_known:nnN {@@_mathface} {#2} \l_@@_keyval_clist

    \exp_args:Nnx \fontspec_set_family:Nxn \l_@@_tmpa_tl
      { ItalicFont={}, BoldFont={}, \exp_not:V \l_@@_keyval_clist } {#3}

    \tl_if_empty:NT \l_@@_mversion_tl
      {
        \tl_set:Nn \l_@@_mversion_tl {normal}
        \DeclareMathAlphabet #1 {\g_fontspec_encoding_tl} {\l_@@_tmpa_tl} {\mddefault} {\updefault}
      }

    \SetMathAlphabet #1 {\l_@@_mversion_tl} {\g_fontspec_encoding_tl} {\l_@@_tmpa_tl} {\mddefault} {\updefault}

    % integrate with fontspec's \setmathrm etc:
    \tl_case:Nn #1
      {
        \mathrm { \cs_set_eq:NN \g__fontspec_mathrm_tl \l_@@_tmpa_tl }
        \mathsf { \cs_set_eq:NN \g__fontspec_mathsf_tl \l_@@_tmpa_tl }
        \mathtt { \cs_set_eq:NN \g__fontspec_mathtt_tl \l_@@_tmpa_tl }
      }
  }
%    \end{macrocode}
% \end{macro}
%
%
% \subsection{Hooks into \pkg{fontspec}}
%
% Historically, \cs{mathrm} and so on were completely overwritten by \pkg{unicode-math}, and \pkg{fontspec}'s methods for setting these fonts in the classical manner were bypassed.
%
% While we could now re-activate the way that \pkg{fontspec} does the following, because we can now change maths fonts whenever it's better to define new commands in \pkg{unicode-math} to define the \cs{mathXYZ} fonts.
%
% \subsubsection{Text font}
%
%    \begin{macrocode}
\cs_generate_variant:Nn \tl_if_eq:nnT {o}
\cs_set:Nn \__fontspec_setmainfont_hook:nn
  {
    \tl_if_eq:onT {\g__fontspec_mathrm_tl} {\rmdefault}
      {
%<XE>   \fontspec_set_family:Nnn \g__fontspec_mathrm_tl {#1} {#2}
%<LU>   \fontspec_set_family:Nnn \g__fontspec_mathrm_tl {Renderer=Basic,#1} {#2}
        \__fontspec_setmathrm_hook:nn {#1} {#2}
      }
  }
%    \end{macrocode}
%    \begin{macrocode}
\cs_set:Nn \__fontspec_setsansfont_hook:nn
  {
    \tl_if_eq:onT {\g__fontspec_mathsf_tl} {\sfdefault}
      {
%<XE>   \fontspec_set_family:Nnn \g__fontspec_mathsf_tl {#1} {#2}
%<LU>   \fontspec_set_family:Nnn \g__fontspec_mathsf_tl {Renderer=Basic,#1} {#2}
        \__fontspec_setmathsf_hook:nn {#1} {#2}
      }
  }
%    \end{macrocode}
%    \begin{macrocode}
\cs_set:Nn \__fontspec_setmonofont_hook:nn
  {
    \tl_if_eq:onT {\g__fontspec_mathtt_tl} {\ttdefault}
      {
%<XE>   \fontspec_set_family:Nnn \g__fontspec_mathtt_tl {#1} {#2}
%<LU>   \fontspec_set_family:Nnn \g__fontspec_mathtt_tl {Renderer=Basic,#1} {#2}
        \__fontspec_setmathtt_hook:nn {#1} {#2}
      }
  }
%    \end{macrocode}
%
% \subsubsection{Maths font}
% If the maths fonts are set explicitly, then the text commands above will not execute their branches to set the maths font alphabets.
%    \begin{macrocode}
\cs_set:Nn \__fontspec_setmathrm_hook:nn
  {
    \SetMathAlphabet\mathrm{normal}\g_fontspec_encoding_tl\g__fontspec_mathrm_tl\mddefault\updefault
    \SetMathAlphabet\mathit{normal}\g_fontspec_encoding_tl\g__fontspec_mathrm_tl\mddefault\itdefault
    \SetMathAlphabet\mathbf{normal}\g_fontspec_encoding_tl\g__fontspec_mathrm_tl\bfdefault\updefault
  }
%    \end{macrocode}
%    \begin{macrocode}
\cs_set:Nn \__fontspec_setboldmathrm_hook:nn
  {
    \SetMathAlphabet\mathrm{bold}\g_fontspec_encoding_tl\g__fontspec_bfmathrm_tl\mddefault\updefault
    \SetMathAlphabet\mathbf{bold}\g_fontspec_encoding_tl\g__fontspec_bfmathrm_tl\bfdefault\updefault
    \SetMathAlphabet\mathit{bold}\g_fontspec_encoding_tl\g__fontspec_bfmathrm_tl\mddefault\itdefault
  }
%    \end{macrocode}
%    \begin{macrocode}
\cs_set:Nn \__fontspec_setmathsf_hook:nn
  {
    \SetMathAlphabet\mathsf{normal}\g_fontspec_encoding_tl\g__fontspec_mathsf_tl\mddefault\updefault
    \SetMathAlphabet\mathsf{bold}  \g_fontspec_encoding_tl\g__fontspec_mathsf_tl\bfdefault\updefault
  }
%    \end{macrocode}
%    \begin{macrocode}
\cs_set:Nn \__fontspec_setmathtt_hook:nn
  {
    \SetMathAlphabet\mathtt{normal}\g_fontspec_encoding_tl\g__fontspec_mathtt_tl\mddefault\updefault
    \SetMathAlphabet\mathtt{bold}  \g_fontspec_encoding_tl\g__fontspec_mathtt_tl\bfdefault\updefault
  }
%    \end{macrocode}
%
% I can't quite remember the logic behind the following two.
%
% If \pkg{fontspec} has been loaded and \verb|\setmathsf| (etc) run, this
% syncs things up:
%    \begin{macrocode}
\tl_if_eq:onF {\g__fontspec_mathrm_tl} {\rmdefault} { \__fontspec_setmathrm_hook:nn {} {} }
\tl_if_eq:onF {\g__fontspec_mathsf_tl} {\sfdefault} { \__fontspec_setmathsf_hook:nn {} {} }
\tl_if_eq:onF {\g__fontspec_mathtt_tl} {\ttdefault} { \__fontspec_setmathtt_hook:nn {} {} }
%    \end{macrocode}
%
% I suppose this is to make things work if neither fontspec or unicode-math
% load any fonts: (I should check that)
%    \begin{macrocode}
\AtBeginDocument
  {
    \tl_if_eq:onT {\g__fontspec_mathrm_tl} {\rmdefault} { \__fontspec_setmathrm_hook:nn {} {} }
    \tl_if_eq:onT {\g__fontspec_mathsf_tl} {\sfdefault} { \__fontspec_setmathsf_hook:nn {} {} }
    \tl_if_eq:onT {\g__fontspec_mathtt_tl} {\ttdefault} { \__fontspec_setmathtt_hook:nn {} {} }
  }
%    \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 2006-2018  Will Robertson, LPPL "maintainer"
% Copyright 2010-2017  Philipp Stephani
% Copyright 2011-2017  Joseph Wright
% Copyright 2012-2015  Khaled Hosny
% ------------------------------------------------
%
% ©/