summaryrefslogtreecommitdiff
path: root/Master/texmf-dist/tex/context/base/mkxl/font-mat.mklx
diff options
context:
space:
mode:
Diffstat (limited to 'Master/texmf-dist/tex/context/base/mkxl/font-mat.mklx')
-rw-r--r--Master/texmf-dist/tex/context/base/mkxl/font-mat.mklx595
1 files changed, 595 insertions, 0 deletions
diff --git a/Master/texmf-dist/tex/context/base/mkxl/font-mat.mklx b/Master/texmf-dist/tex/context/base/mkxl/font-mat.mklx
new file mode 100644
index 00000000000..3fc6275a65d
--- /dev/null
+++ b/Master/texmf-dist/tex/context/base/mkxl/font-mat.mklx
@@ -0,0 +1,595 @@
+%D \module
+%D [ file=font-mat,
+%D version=2011.01.13, % (copied fron font-ini)
+%D title=\CONTEXT\ Font Macros,
+%D subtitle=Math,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
+%C details.
+
+\writestatus{loading}{ConTeXt Font Macros / Math}
+
+\unprotect
+
+%D Be nice:
+
+\ifdefined\??fontinstanceready \else \installcorenamespace{fontinstanceready} \fi
+\ifdefined\??fontinstancebasic \else \installcorenamespace{fontinstancebasic} \fi
+\ifdefined\??fontinstanceclass \else \installcorenamespace{fontinstanceclass} \fi
+
+%D The order 3 2 1 of size matters: needed for math-fbk relative size storage!
+
+%D \macros
+%D {textonly}
+%D
+%D Traditionally math has a big impact on font definitions, mainly because we need
+%D to define alphabet variants using families and fonts. This means that one can
+%D easily get 10 fonts loaded per math size. In \MKIV\ we use a different approach:
+%D one family which has either a virtual font made of traditional fonts, or an
+%D \OPENTYPE\ font that has it all.
+%D
+%D We currently use only one math family but in the future we might consider using a
+%D second one for bold math. For the moment we keep the \MKII\ method of using a
+%D token register for definitions but we already dropped the text and symbols ones
+%D since they now live in the same family.
+
+\newtoks \t_font_math_strategies
+\newconditional\c_font_synchronize_math_fonts \settrue\c_font_synchronize_math_fonts
+
+\protected\def\font_helpers_synchronize_math % math stuff in mmode
+ {\ifconditional\c_font_synchronize_math_fonts\the\t_font_math_strategies\fi}
+
+\permanent\protected\def\textonly{\setfalse\c_font_synchronize_math_fonts} % document this
+
+%D The main math font definer. We have removed some optimized code simply because we
+%D now always have a fontclass. We could check for fontclass being default or empty
+%D and save a few tests but it does not help us when no math is defined.
+%D
+%D Because we want to keep mr=.. and mb=... settings (read: not break downward
+%D compatibility by enforcing mrlr etc) we need a bit more code that optimal.
+
+% todo: \c_font_fam_mr
+
+\aliased\let\c_font_fam_mr \zerocount % math regular
+\aliased\let\c_font_fam_mr_lr\plusone % math regular l2r
+\aliased\let\c_font_fam_mr_rl\plustwo % math regular r2l
+
+\aliased\let\c_font_fam_mb \plusthree % math bold
+\aliased\let\c_font_fam_mb_lr\plusfour % math bold l2r
+\aliased\let\c_font_fam_mb_rl\plusfive % math bold r2l
+
+\definesystemattribute[mathfamily][public]
+
+\newconditional\c_font_bidirectional_mathstrategy % can be default, not that much overhead: \settrue\c_font_bidirectional_mathstrategy
+\newconditional\c_font_complete_bold_mathstrategy \settrue\c_font_complete_bold_mathstrategy
+
+% \frozen ...
+
+\immutable\def\mathtextsuffix {-text}
+\immutable\def\mathscriptsuffix {-script}
+\immutable\def\mathscriptscriptsuffix{-scriptscript}
+
+%D Beware: truefontname also does a fallback on defaultfontclass so there
+%D can be some interference here, which is why we use a different method
+%D for bold.
+
+\def\font_helpers_set_math_family_a
+ {\ifcsname\??fontinstanceready\fontclass -\fontbody-\s!mm-\fontfamily-\fontsize\endcsname \setfalse\c_font_auto_size
+ \lastnamedcs \orelse
+ \ifcsname\??fontinstanceready\fontclass -\fontbody-\s!mm-\fontfamily \endcsname \settrue \c_font_auto_size
+ \lastnamedcs \else
+ \font_helpers_set_math_family_b
+ \fi}
+
+\def\font_helpers_set_math_family_b
+ {\ifcsname\??fontinstanceready\defaultfontclass-\fontbody-\s!mm-\fontfamily-\fontsize\endcsname \setfalse\c_font_auto_size
+ \lastnamedcs \orelse
+ \ifcsname\??fontinstanceready\defaultfontclass-\fontbody-\s!mm-\fontfamily \endcsname \settrue \c_font_auto_size
+ \lastnamedcs \else
+ \font_helpers_set_math_family_c
+ \fi}
+
+\def\font_helpers_set_math_family_c
+ {\ifcsname\??fontinstanceready \fontbody-\s!mm-\fontfamily-\fontsize\endcsname \setfalse\c_font_auto_size
+ \lastnamedcs \orelse
+ \ifcsname\??fontinstanceready \fontbody-\s!mm-\fontfamily \endcsname \settrue \c_font_auto_size
+ \lastnamedcs \else
+ \settrue \c_font_auto_size
+ \fi}
+
+%def\mathsizesuffix{\ifcase\fontface\or\mathtextsuffix\or\mathscriptsuffix\or\mathscriptscriptsuffix\fi}
+\mutable\let\mathsizesuffix\empty
+
+\mutable\let\fontfamily\relax % for now public but it is a helper
+
+\def\font_helpers_set_math_family_indeed_normal#mrtag#family% \fontface etc are also used later on
+ {\let\savedfontbody\fontbody
+ \let\fontfamily#family%
+ % the order is important as we depend on known id's when completing fonts
+ % enabling is needed when we have fallbacks which spoils the families
+ \let\mathsizesuffix\mathscriptscriptsuffix\let\fontface\!!plusthree
+ \font_helpers_set_math_family_a\scriptscriptfont#mrtag\font % defines
+ \font_helpers_set_math_family_a\scriptscriptfont#mrtag\font % enables
+ \let\mathsizesuffix\mathscriptsuffix \let\fontface\!!plustwo
+ \font_helpers_set_math_family_a\scriptfont #mrtag\font % defines
+ \font_helpers_set_math_family_a\scriptfont #mrtag\font % enables
+ \let\mathsizesuffix\mathtextsuffix \let\fontface\!!plusone
+ \font_helpers_set_math_family_a\textfont #mrtag\font % defines
+ \font_helpers_set_math_family_a\textfont #mrtag\font % enables
+ \let\mathsizesuffix\empty \let\fontface\!!zerocount
+ \let\fontbody\savedfontbody
+ \setfalse\c_font_auto_size}
+
+\def\font_helpers_set_math_family_set_scales_compact
+ {% these are used when no font setting is there, the settings come before setting the parameters
+ % and are stored with the family
+ \glyphtextscale \plusthousand
+ \glyphscriptscale \numexpr\plusthousand*\dimexpr\scriptface \relax/\dimexpr\textface\relax\relax
+ \glyphscriptscriptscale \numexpr\plusthousand*\dimexpr\scriptscriptface\relax/\dimexpr\textface\relax\relax}
+
+\def\font_helpers_set_math_family_set_scales_normal
+ {\glyphtextscale \plusthousand
+ \glyphscriptscale \plusthousand
+ \glyphscriptscriptscale\plusthousand}
+
+\def\font_helpers_set_math_family_indeed_compact#mrtag#family% \fontface etc are also used later on
+ {\let\savedfontbody\fontbody
+ \let\fontfamily#family%
+ \font_helpers_set_math_family_set_scales_compact
+ % the order is important as we depend on known id's when completing fonts
+ % enabling is needed when we have fallbacks which spoils the families
+ \let\mathsizesuffix\mathtextsuffix \let\fontface\!!plusone
+ \font_helpers_set_math_family_a\textfont #mrtag\font % defines
+ \font_helpers_set_math_family_a\textfont #mrtag\font % enables
+ \scriptfont #mrtag\font % reuses
+ \scriptscriptfont#mrtag\font % reuses
+ \let\mathsizesuffix\empty \let\fontface\!!zerocount
+ \let\fontbody\savedfontbody
+ \setfalse\c_font_auto_size}
+
+\def\font_helpers_set_math_family_indeed
+ {\ifconditional\c_font_compact
+ \expandafter\font_helpers_set_math_family_indeed_compact
+ \else
+ \expandafter\font_helpers_set_math_family_indeed_normal
+ \fi}
+
+\def\font_helpers_set_math_family_bold_indeed_normal#mbfam#familytag#mrfam% \c_font_fam_mb \s!mb \c_font_fam_mr
+ {\let\savedfontclass\defaultfontclass
+ \let\defaultfontclass\fontclass % else truefontname falls back on the wrong one
+ \let\savedfontbody\fontbody
+ \let\fontfamily#familytag%
+ \font_helpers_set_math_family_set_scales_normal
+ \let\mathsizesuffix\mathscriptscriptsuffix\let\fontface\!!plusthree
+ \font_helpers_set_math_family_bold_a\scriptscriptfont#mbfam#mrfam% defines
+ \font_helpers_set_math_family_bold_a\scriptscriptfont#mbfam#mrfam% enables
+ \let\mathsizesuffix\mathscriptsuffix \let\fontface\!!plustwo
+ \font_helpers_set_math_family_bold_a\scriptfont #mbfam#mrfam% defines
+ \font_helpers_set_math_family_bold_a\scriptfont #mbfam#mrfam% enables
+ \let\mathsizesuffix\mathtextsuffix \let\fontface\!!plusone
+ \font_helpers_set_math_family_bold_a\textfont #mbfam#mrfam% defines
+ \font_helpers_set_math_family_bold_a\textfont #mbfam#mrfam% enables
+ \let\mathsizesuffix\empty \let\fontface\!!zerocount
+ \let\fontbody\savedfontbody
+ \let\defaultfontclass\savedfontclass
+ \setfalse\c_font_auto_size}
+
+\def\font_helpers_set_math_family_bold_indeed_compact#mbfam#familytag#mrfam% \c_font_fam_mb \s!mb \c_font_fam_mr
+ {\let\savedfontclass\defaultfontclass
+ \let\defaultfontclass\fontclass % else truefontname falls back on the wrong one
+ \let\savedfontbody\fontbody
+ \let\fontfamily#familytag%
+ \let\mathsizesuffix\mathtextsuffix \let\fontface\!!plusone
+ \font_helpers_set_math_family_bold_a\textfont #mbfam#mrfam% defines
+ \font_helpers_set_math_family_bold_a\textfont #mbfam#mrfam% enables
+ \scriptfont #mbfam\scriptfont #mrfam% reuses
+ \scriptscriptfont#mbfam\scriptscriptfont#mrfam% reuses
+ \let\mathsizesuffix\empty \let\fontface\!!zerocount
+ \let\fontbody\savedfontbody
+ \let\defaultfontclass\savedfontclass
+ \setfalse\c_font_auto_size}
+
+\def\font_helpers_set_math_family_bold_indeed
+ {\ifconditional\c_font_compact
+ \expandafter\font_helpers_set_math_family_bold_indeed_compact
+ \else
+ \expandafter\font_helpers_set_math_family_bold_indeed_normal
+ \fi}
+
+\def\font_helpers_set_math_family_bold_a#font#mbfam#mrfam%
+ {\ifcsname\??fontinstanceready\fontclass-\fontbody-\s!mm-\fontfamily-\fontsize\endcsname \setfalse\c_font_auto_size
+ \lastnamedcs #font#mbfam\font \orelse
+ \ifcsname\??fontinstanceready\fontclass-\fontbody-\s!mm-\fontfamily \endcsname \settrue \c_font_auto_size
+ \lastnamedcs #font#mbfam\font \else
+ #font#mbfam#font#mrfam%
+ \fi}
+
+% optimized: math fonts are never changed (10K \bfa $x$: 3.2 => 2.5 (baseline 1.0))
+%
+% sort of tricky: we cannot reset in \everybeforedefinetypeface as we don't know
+% all sizes so we postpone the optimization to the first starttext
+%
+% pitfall: we should reset 'm when a fontclass name is reused
+
+\newconditional\optimizemathfontdefinitions \settrue\optimizemathfontdefinitions
+
+\def\font_helpers_set_math_family#mrfam#familytag%
+ {\ifconditional\optimizemathfontdefinitions
+ \ifcsname\??fontinstanceclass\fontclass-\fontbody-\s!mm-#familytag-\fontsize-1\endcsname
+ % \writestatus{fonts}{math: reusing \fontclass\fontbody\s!mm#familytag\fontsize1}%
+ \font_helpers_preset_math_family_indeed#mrfam#familytag%
+ \else
+ % \writestatus{fonts}{math: defining \fontclass\fontbody\s!mm#familytag\fontsize1}%
+ \font_helpers_set_math_family_indeed#mrfam#familytag%
+ \fi
+ \else
+ \font_helpers_set_math_family_indeed#mrfam#familytag%
+ \fi}
+
+\def\font_helpers_set_math_family_bold#mbfam#familytag#mrfam%
+ {\ifconditional\optimizemathfontdefinitions
+ %\ifcsname\??fontinstanceclass\fontclass-\textface-\s!mm-#familytag-\fontsize-1\endcsname
+ \ifcsname\??fontinstanceclass\fontclass-\fontbody-\s!mm-#familytag-\fontsize-1\endcsname
+ \font_helpers_preset_math_family_indeed#mbfam#familytag%
+ \else
+ \font_helpers_set_math_family_bold_indeed#mbfam#familytag#mrfam%
+ \fi
+ \else
+ \font_helpers_set_math_family_bold_indeed#mbfam#familytag#mrfam%
+ \fi}
+
+%D It can happen that we use a bodyfont with no math in which case we have a problem
+%D with setting the global bodyfont size in the page builder. For instance in:
+%D
+%D \starttext
+%D \definetypeface[test][rm][serif][pagella][default]
+%D \setupbodyfont[test]
+%D test
+%D \stoptext
+%D
+%D This is why we need the check. At the cost of some extra checking we gain a
+%D little in restoring global states and, what's more important, we get rid of large
+%D math parameter push/pop in tracingall when not needed.
+
+% \def\font_helpers_preset_math_family_indeed#fam#familytag%
+% {\expandafter\let\expandafter\v_font_math_one\csname\??fontinstanceclass\fontclass-\fontbody-\s!mm-#familytag-\fontsize-1\endcsname
+% \ifrelax\v_font_math_one
+% \font_helpers_preset_math_family_warning
+% \orelse\ifnum\fontid\textfont#fam=\fontid\v_font_math_one\else
+% \font_helpers_preset_math_family_indeed_changed#fam#familytag%
+% \fi}
+
+% \def\font_helpers_preset_math_family_warning
+% {\writestatus{fonts}{math: unset for global bodyfont \fontclass\space at \fontbody}}
+
+% \def\font_helpers_preset_math_family_indeed_changed_normal#fam#familytag%
+% {\font_helpers_set_math_family_set_scales_normal
+% \scriptscriptfont#fam\csname\??fontinstanceclass\fontclass-\fontbody-\s!mm-#familytag-\fontsize-3\endcsname
+% \scriptfont #fam\csname\??fontinstanceclass\fontclass-\fontbody-\s!mm-#familytag-\fontsize-2\endcsname
+% \textfont #fam\v_font_math_one}
+
+% \def\font_helpers_preset_math_family_indeed_changed_compact#fam#familytag%
+% {\font_helpers_set_math_family_set_scales_compact
+% \scriptscriptfont#fam\v_font_math_one
+% \scriptfont #fam\v_font_math_one
+% \textfont #fam\v_font_math_one}
+
+% \def\font_helpers_preset_math_family_indeed_changed
+% {\ifconditional\c_font_compact
+% \expandafter\font_helpers_preset_math_family_indeed_changed_compact
+% \else
+% \expandafter\font_helpers_preset_math_family_indeed_changed_normal
+% \fi}
+
+\def\font_helpers_preset_math_family_indeed_normal#fam#familytag%
+ {\expandafter\let\expandafter\font_math_last_font\csname\??fontinstanceclass\fontclass-\fontbody-\s!mm-#familytag-\fontsize-1\endcsname
+ \font_math_last_font
+ \ifnum\fontid\textfont#fam=\fontid\font\else
+ \font_helpers_preset_math_family_indeed_changed_normal#fam#familytag%
+ \fi}
+
+\def\font_helpers_preset_math_family_indeed_changed_normal#fam#familytag%
+ {\font_helpers_set_math_family_set_scales_normal
+ \csname\??fontinstanceclass\fontclass-\fontbody-\s!mm-#familytag-\fontsize-3\endcsname\scriptscriptfont#fam\font
+ \csname\??fontinstanceclass\fontclass-\fontbody-\s!mm-#familytag-\fontsize-2\endcsname\scriptfont #fam\font
+ % \csname\??fontinstanceclass\fontclass-\fontbody-\s!mm-#familytag-\fontsize-1\endcsname\textfont #fam\font}
+ \font_math_last_font \textfont #fam\font}
+
+\def\font_helpers_preset_math_family_indeed_compact#fam#familytag%
+ {\csname\??fontinstanceclass\fontclass-\fontbody-\s!mm-#familytag-\fontsize-1\endcsname
+ \ifnum\fontid\textfont#fam=\fontid\font\else
+ \font_helpers_preset_math_family_indeed_changed_compact#fam%
+ \fi}
+
+\def\font_helpers_preset_math_family_indeed_changed_compact#fam%
+ {\font_helpers_set_math_family_set_scales_compact
+ \scriptscriptfont#fam\font
+ \scriptfont #fam\font
+ \textfont #fam\font}
+
+\def\font_helpers_preset_math_family_indeed
+ {\ifconditional\c_font_compact
+ \expandafter\font_helpers_preset_math_family_indeed_compact
+ \else
+ \expandafter\font_helpers_preset_math_family_indeed_normal
+ \fi}
+
+\let\font_helpers_reset_fontclass_math_families\gobbleoneargument
+
+%D It would be nice if characters could be defined in a neutral way (say fam 255)
+%D and be mapped to a real family during noad list construction. However, this
+%D changes tex in critical places so for the moment we simulate this using
+%D manipulation.
+%D
+%D For tracing purposes we use three families but in l2r mode 1 and 2 are copies of
+%D 0 while in rl mode 0 is a copy of 1. There is no real overhead involved in this.
+%D This also permits different font definitions for normal and mixed.
+
+\let\m_font_class_direction\empty
+\let\m_font_class_features \empty
+\let\m_font_class_fallbacks\empty
+\let\m_font_class_goodies \empty
+
+\let\m_font_direction\empty
+\let\m_font_features \empty
+\let\m_font_fallbacks\empty
+\let\m_font_goodies \empty
+
+\appendtoks % can be analyzed once
+ % why here ..
+ %\edef\m_font_class_direction{\ifcsname\??fontclass\fontclass\s!mm\s!direction\endcsname\csname\??fontclass\fontclass\s!mm\s!direction\endcsname\fi}%
+ \edef\m_font_class_direction{\begincsname\??fontclass\fontclass\s!mm\s!direction\endcsname}%
+ % ...
+ \ifx\m_font_class_direction\v!both
+ \settrue\c_font_bidirectional_mathstrategy
+ \else
+ \setfalse\c_font_bidirectional_mathstrategy
+ \fi
+\to \t_font_math_strategies
+
+\def\font_helpers_bidirectional_mathstrategy_yes
+ {\font_helpers_set_math_family\c_font_fam_mr_lr\s!mrlr
+ \font_helpers_set_math_family\c_font_fam_mr_rl\s!mrrl
+ \ifnum\fontid\textfont\c_font_fam_mr=\fontid\textfont\c_font_fam_mr_lr\else
+ \font_helpers_bidirectional_mathstrategy_yes_changed
+ \fi}
+
+\def\font_helpers_bidirectional_mathstrategy_yes_changed
+ {\textfont \c_font_fam_mr\textfont \c_font_fam_mr_lr
+ \scriptfont \c_font_fam_mr\scriptfont \c_font_fam_mr_lr
+ \scriptscriptfont\c_font_fam_mr\scriptscriptfont\c_font_fam_mr_lr}
+
+\def\font_helpers_bidirectional_mathstrategy_nop
+ {\font_helpers_set_math_family\c_font_fam_mr\s!mr
+ \ifnum\fontid\textfont\c_font_fam_mr_rl=\fontid\textfont\c_font_fam_mr\else
+ \font_helpers_bidirectional_mathstrategy_nop_changed
+ \fi}
+
+\def\font_helpers_bidirectional_mathstrategy_nop_changed
+ {\textfont \c_font_fam_mr_lr\textfont \c_font_fam_mr
+ \scriptfont \c_font_fam_mr_lr\scriptfont \c_font_fam_mr
+ \scriptscriptfont\c_font_fam_mr_lr\scriptscriptfont\c_font_fam_mr
+ \textfont \c_font_fam_mr_rl\textfont \c_font_fam_mr
+ \scriptfont \c_font_fam_mr_rl\scriptfont \c_font_fam_mr
+ \scriptscriptfont\c_font_fam_mr_rl\scriptscriptfont\c_font_fam_mr}
+
+\appendtoks
+ \ifconditional\c_font_bidirectional_mathstrategy
+ \font_helpers_bidirectional_mathstrategy_yes
+ \else
+ \font_helpers_bidirectional_mathstrategy_nop
+ \fi
+\to \t_font_math_strategies
+
+\def\font_helpers_complete_bold_mathstrategy_yes_bidi
+ {\font_helpers_set_math_family_bold\c_font_fam_mb_lr\s!mblr\c_font_fam_mr_lr
+ \font_helpers_set_math_family_bold\c_font_fam_mb_rl\s!mbrl\c_font_fam_mr_rl
+ \ifnum\fontid\textfont\c_font_fam_mb=\fontid\textfont\c_font_fam_mb_lr\else
+ \font_helpers_complete_bold_mathstrategy_yes_bidi_changed
+ \fi}
+
+\def\font_helpers_complete_bold_mathstrategy_yes_bidi_changed
+ {\textfont \c_font_fam_mb\textfont \c_font_fam_mb_lr
+ \scriptfont \c_font_fam_mb\scriptfont \c_font_fam_mb_lr
+ \scriptscriptfont\c_font_fam_mb\scriptscriptfont\c_font_fam_mb_lr}
+
+\def\font_helpers_complete_bold_mathstrategy_yes
+ {\font_helpers_set_math_family_bold\c_font_fam_mb\s!mb\c_font_fam_mr\relax
+ \ifnum\fontid\textfont\c_font_fam_mb_rl=\fontid\textfont\c_font_fam_mb\else
+ \font_helpers_complete_bold_mathstrategy_yes_changed
+ \fi}
+
+\def\font_helpers_complete_bold_mathstrategy_yes_changed
+ {\textfont \c_font_fam_mb_rl\textfont \c_font_fam_mb
+ \scriptfont \c_font_fam_mb_rl\scriptfont \c_font_fam_mb
+ \scriptscriptfont\c_font_fam_mb_rl\scriptscriptfont\c_font_fam_mb
+ \textfont \c_font_fam_mb_lr\textfont \c_font_fam_mb
+ \scriptfont \c_font_fam_mb_lr\scriptfont \c_font_fam_mb
+ \scriptscriptfont\c_font_fam_mb_lr\scriptscriptfont\c_font_fam_mb}
+
+\def\font_helpers_complete_bold_mathstrategy_nop
+ {\ifnum\fontid\textfont\c_font_fam_mb=\fontid\textfont\c_font_fam_mr\else
+ \font_helpers_complete_bold_mathstrategy_nop_changed
+ \fi}
+
+\def\font_helpers_complete_bold_mathstrategy_nop_changed
+ {\textfont \c_font_fam_mb \textfont \c_font_fam_mr
+ \scriptfont \c_font_fam_mb \scriptfont \c_font_fam_mr
+ \scriptscriptfont\c_font_fam_mb \scriptscriptfont\c_font_fam_mr
+ \textfont \c_font_fam_mb_lr\textfont \c_font_fam_mr_lr
+ \scriptfont \c_font_fam_mb_lr\scriptfont \c_font_fam_mr_lr
+ \scriptscriptfont\c_font_fam_mb_lr\scriptscriptfont\c_font_fam_mr_lr
+ \textfont \c_font_fam_mb_rl\textfont \c_font_fam_mr_rl
+ \scriptfont \c_font_fam_mb_rl\scriptfont \c_font_fam_mr_rl
+ \scriptscriptfont\c_font_fam_mb_rl\scriptscriptfont\c_font_fam_mr_rl}
+
+\def\font_helpers_apply_complete_bold_mathstrategy
+ {\ifconditional\c_font_complete_bold_mathstrategy
+ \ifconditional\c_font_bidirectional_mathstrategy
+ \font_helpers_complete_bold_mathstrategy_yes_bidi
+ \else
+ \font_helpers_complete_bold_mathstrategy_yes
+ \fi
+ \else
+ \font_helpers_complete_bold_mathstrategy_nop
+ \fi}
+
+\appendtoks
+ \font_helpers_apply_complete_bold_mathstrategy
+\to \t_font_math_strategies
+
+\ifdefined\defaultmathfamily \else
+ \setnewconstant\defaultmathfamily\zerocount
+\fi
+
+\appendtoks
+ \fam\defaultmathfamily % all characters and symbols are in this family
+\to \everymathematics
+
+\protected\def\font_helpers_synchronize_math_family_mr
+ {\c_attr_mathfamily\ifconditional\c_font_bidirectional_mathstrategy
+ \ifconditional\c_math_right_to_left
+ \plustwo
+ \else
+ \plusone
+ \fi
+ \else
+ \zerocount
+ \fi}
+
+\protected\def\font_helpers_synchronize_math_family_mb
+ {\c_attr_mathfamily\ifconditional\c_font_bidirectional_mathstrategy
+ \ifconditional\c_math_right_to_left
+ \ifconditional\c_font_pseudo_bold_math_state\pluseight\else\plusfive\fi
+ \else
+ \ifconditional\c_font_pseudo_bold_math_state\plusseven\else\plusfour\fi
+ \fi
+ \else
+ \ifconditional\c_font_pseudo_bold_math_state\plussix\else\plusthree\fi
+ \fi}
+
+\installcorenamespace{fontmathsynchronizer}
+\installcorenamespace{fontmathstoredstrategy}
+
+\letvalue{\??fontmathsynchronizer\s!tf }\font_helpers_synchronize_math_family_mr
+\letvalue{\??fontmathsynchronizer\s!sl }\font_helpers_synchronize_math_family_mr
+\letvalue{\??fontmathsynchronizer\s!it }\font_helpers_synchronize_math_family_mr
+\letvalue{\??fontmathsynchronizer\s!bf }\font_helpers_synchronize_math_family_mb
+\letvalue{\??fontmathsynchronizer\s!bs }\font_helpers_synchronize_math_family_mb
+\letvalue{\??fontmathsynchronizer\s!bi }\font_helpers_synchronize_math_family_mb
+\letvalue{\??fontmathsynchronizer\empty}\font_helpers_synchronize_math_family_mr
+
+% \def\font_helpers_synchronize_math_family
+% {\csname\??fontmathsynchronizer\ifcsname\??fontmathsynchronizer\fontalternative\endcsname\fontalternative\fi\endcsname}
+
+\def\font_helpers_synchronize_math_family
+ {\ifcsname\??fontmathsynchronizer\fontalternative\endcsname
+ \lastnamedcs
+ \else
+ \font_helpers_synchronize_math_family_mr
+ \fi}
+
+\appendtoks
+ \ifnum\fontid\textfont\zerocount=\fontid\textfont\plusthree
+ \letcsname\??fontmathstoredstrategy\fontclass\endcsname\font_helpers_set_math_partial_bold_strategy
+ \else
+ \letcsname\??fontmathstoredstrategy\fontclass\endcsname\font_helpers_set_math_full_bold_strategy
+ \fi
+\to \t_font_math_strategies
+
+%def\font_helpers_synchronize_math_bold_strategy{\csname\??fontmathstoredstrategy\fontclass\endcsname}
+\def\font_helpers_synchronize_math_bold_strategy{\begincsname\??fontmathstoredstrategy\fontclass\endcsname}
+
+\newconditional\c_font_pseudo_bold_math_state
+
+\def\font_helpers_set_math_partial_bold_strategy{\settrue \c_font_pseudo_bold_math_state}
+\def\font_helpers_set_math_full_bold_strategy {\setfalse\c_font_pseudo_bold_math_state}
+
+\appendtoks
+ \font_helpers_synchronize_math_bold_strategy
+\to \everymathematics
+
+%D Bold is somewhat special as we might want both full-bold-math mixed regular-math,
+%D as well as automatic adaption to outer bold (in titles and inline text bold) so
+%D we will need explicit switches as well as an automatic one. (We will use lucida
+%D as an example.)
+
+\ifdefined\mathdefault \else \let\mathdefault\relax \fi
+
+\newconditional\c_math_bold
+
+\permanent\protected\def\mr % math regular
+ {\ifmmode
+ \font_helpers_synchronize_math_family_mr
+ \else
+ \font_helpers_set_current_font_alternative\s!mr
+ \fi
+ \mathdefault
+ \setfalse\c_math_bold}
+
+\permanent\protected\def\mb % math bold
+ {\ifmmode
+ \font_helpers_synchronize_math_family_mb
+ \else
+ \font_helpers_set_current_font_alternative\s!mb
+ \fi
+ \mathdefault
+ \settrue\c_math_bold}
+
+\appendtoks
+ \font_helpers_synchronize_math_family % auto bold
+\to \everymathematics
+
+\appendtoks
+ \ifconditional\c_math_bold\mb\fi
+\to \everymathematics
+
+%D \macros
+%D {bigmath,nobigmath}
+%D
+%D We can inhibit this slow||downer with:
+
+% these can best be combined
+
+% 0=never 1=everymath 2=always
+
+\setnewconstant\synchronizebigmathflag\plusone
+
+\appendtoks
+ \ifcase\synchronizebigmathflag
+ % never
+ \or
+ \synchronizebigmath
+ \or
+ % always
+ \fi
+\to \everymathematics
+
+\permanent\protected\def\nobigmath {\synchronizebigmathflag\zerocount}
+\permanent\protected\def\autobigmath{\synchronizebigmathflag\plusone\synchronizebigmath}
+\permanent\protected\def\bigmath {\synchronizebigmathflag\plustwo\synchronizebigmath}
+
+\mutable\let\bigmathfontsize\empty
+
+\permanent\protected\def\synchronizebigmath
+ {\ifx\bigmathfontsize\fontsize
+ % already in sync
+ \else
+ \let\bigmathfontsize\fontsize
+ \font_helpers_synchronize_math
+ \fi}
+
+\protected\def\font_helpers_check_big_math_synchronization
+ {\ifcase\synchronizebigmathflag
+ % never
+ \or
+ \ifmmode \synchronizebigmath \fi
+ \or
+ \synchronizebigmath
+ \fi}
+
+\protect \endinput