17 files changed, 72 insertions, 70 deletions
diff --git a/tex/context/base/mkii/cont-new.mkii b/tex/context/base/mkii/cont-new.mkii
index 8b4260470..5fbeafaf0 100644
--- a/tex/context/base/mkii/cont-new.mkii
+++ b/tex/context/base/mkii/cont-new.mkii
@@ -11,7 +11,7 @@
 %C therefore copyrighted by \PRAGMA. See mreadme.pdf for
 %C details.
 
-\newcontextversion{2019.12.27 16:34}
+\newcontextversion{2019.12.30 19:06}
 
 %D This file is loaded at runtime, thereby providing an
 %D excellent place for hacks, patches, extensions and new
diff --git a/tex/context/base/mkii/context.mkii b/tex/context/base/mkii/context.mkii
index 882e7ccf0..35aefcf48 100644
--- a/tex/context/base/mkii/context.mkii
+++ b/tex/context/base/mkii/context.mkii
@@ -20,7 +20,7 @@
 %D your styles an modules.
 
 \edef\contextformat {\jobname}
-\edef\contextversion{2019.12.27 16:34}
+\edef\contextversion{2019.12.30 19:06}
 
 %D For those who want to use this:
 
diff --git a/tex/context/base/mkiv/cont-new.mkiv b/tex/context/base/mkiv/cont-new.mkiv
index a315210ca..16c966d45 100644
--- a/tex/context/base/mkiv/cont-new.mkiv
+++ b/tex/context/base/mkiv/cont-new.mkiv
@@ -13,7 +13,7 @@
 
 % \normalend % uncomment this to get the real base runtime
 
-\newcontextversion{2019.12.27 16:34}
+\newcontextversion{2019.12.30 19:06}
 
 %D This file is loaded at runtime, thereby providing an excellent place for
 %D hacks, patches, extensions and new features.
diff --git a/tex/context/base/mkiv/context.mkiv b/tex/context/base/mkiv/context.mkiv
index 72c920101..6b290ae2b 100644
--- a/tex/context/base/mkiv/context.mkiv
+++ b/tex/context/base/mkiv/context.mkiv
@@ -45,7 +45,7 @@
 %D {YYYY.MM.DD HH:MM} format.
 
 \edef\contextformat {\jobname}
-\edef\contextversion{2019.12.27 16:34}
+\edef\contextversion{2019.12.30 19:06}
 \edef\contextkind   {beta}
 
 %D Kind of special:
diff --git a/tex/context/base/mkiv/context.mkxl b/tex/context/base/mkiv/context.mkxl
index ee9d0b344..c4eb9a610 100644
--- a/tex/context/base/mkiv/context.mkxl
+++ b/tex/context/base/mkiv/context.mkxl
@@ -29,7 +29,7 @@
 %D {YYYY.MM.DD HH:MM} format.
 
 \edef\contextformat {\jobname}
-\edef\contextversion{2019.12.27 16:34}
+\edef\contextversion{2019.12.30 19:06}
 \edef\contextkind   {beta}
 
 %D Kind of special:
diff --git a/tex/context/base/mkiv/grph-trf.mkiv b/tex/context/base/mkiv/grph-trf.mkiv
index 274b2f8ef..18f988470 100644
--- a/tex/context/base/mkiv/grph-trf.mkiv
+++ b/tex/context/base/mkiv/grph-trf.mkiv
@@ -139,7 +139,7 @@
    %
    \d_grph_scale_dp\dp\nextbox
    \ifx\p_depth\v!no \ifzeropt\d_grph_scale_dp \else
-     \setbox\nextbox\hpack{\raise\d_grph_scale_dp\box\nextbox}% new
+     \setbox\nextbox\naturalhpack{\raise\d_grph_scale_dp\box\nextbox}% new
      \d_grph_scale_dp\dp\nextbox
    \fi \fi
    \d_grph_scale_wd\wd\nextbox
@@ -168,7 +168,7 @@
 %   {\d_grph_scale_wd\finalscaleboxxscale\d_grph_scale_wd
 %    \d_grph_scale_ht\finalscaleboxyscale\d_grph_scale_ht
 %    \d_grph_scale_dp\finalscaleboxyscale\d_grph_scale_dp
-%    \setbox\nextbox\hpack
+%    \setbox\nextbox\naturalhpack
 %      {\dostartscaling \finalscaleboxxscale \finalscaleboxyscale
 %       \smashedbox\nextbox
 %       \dostopscaling}%
@@ -195,7 +195,7 @@
    \fi}
 
 \def\grph_scale_apply_yes
-  {\setbox\nextbox\hpack
+  {\setbox\nextbox\naturalhpack
      {\dostartscaling \finalscaleboxxscale \finalscaleboxyscale
       \smashedbox\nextbox
       \dostopscaling}%
@@ -567,13 +567,13 @@
   {\ifx\p_equalwidth\empty \else
     \scratchdimen\p_equalwidth\relax
     \ifdim\d_grph_scale_wd<\scratchdimen
-      \setbox\nextbox\hpack to \scratchdimen{\hss\box\nextbox\hss}%
+      \setbox\nextbox\naturalhpack to \scratchdimen{\hss\box\nextbox\hss}%
     \fi
    \fi
    \ifx\p_equalheight\empty \else
      \scratchdimen\p_equalheight\relax
      \ifdim\d_grph_scale_ht<\scratchdimen
-       \setbox\nextbox\vpack to \scratchdimen{\vss\box\nextbox\vss}%
+       \setbox\nextbox\naturalvpack to \scratchdimen{\vss\box\nextbox\vss}%
      \fi
    \fi}
 
@@ -687,7 +687,7 @@
      \scratchheight\clippingparameter\c!sy\scratchheight
      \advance\scratchyoffset \ht\nextbox
    \fi
-   \setbox\nextbox\hpack
+   \setbox\nextbox\naturalhpack
      {\advance\scratchxoffset -\clippingparameter\c!leftoffset  \relax
       \advance\scratchyoffset -\clippingparameter\c!bottomoffset\relax
       \hskip-\scratchxoffset
@@ -696,13 +696,13 @@
    \wd\nextbox\zeropoint
    \ht\nextbox\zeropoint
    \dp\nextbox\zeropoint
-   \setbox\nextbox\hpack
+   \setbox\nextbox\naturalhpack
      {\advance\scratchwidth \dimexpr\clippingparameter\c!leftoffset  +\clippingparameter\c!rightoffset\relax
       \advance\scratchheight\dimexpr\clippingparameter\c!bottomoffset+\clippingparameter\c!topoffset  \relax
       \dostartclipping{\clippingparameter\c!mp}\scratchwidth\scratchheight
         \box\nextbox
       \dostopclipping}%
-   \setbox\nextbox\hpack
+   \setbox\nextbox\naturalhpack
      {\hskip-\clippingparameter\c!leftoffset
       \lower \clippingparameter\c!bottomoffset
       \box\nextbox}%
@@ -760,7 +760,11 @@
   {\scratchdimen\wd\nextbox
    % better use an hbox (if no \forgetall, leftskip etc may creep in)
    %\setbox\nextbox\vbox{\forgetall\dostartmirroring\hskip-\wd\nextbox\box\nextbox\dostopmirroring}%
-   \setbox\nextbox\hpack{\dostartmirroring\hskip-\wd\nextbox\box\nextbox\dostopmirroring}%
+   \setbox\nextbox\naturalhpack
+     {\dostartmirroring
+      \hskip-\wd\nextbox
+      \box\nextbox
+      \dostopmirroring}%
    \wd\nextbox\scratchdimen
    \box\nextbox
    \egroup}
@@ -908,7 +912,7 @@
    \egroup}
 
 \def\grph_rotate_finish_indeed
-  {\hpack\bgroup
+  {\naturalhpack\bgroup
      \ifx\p_rotation_rotation\empty
        \grph_rotate_finish_nop
      \else
@@ -938,19 +942,19 @@
 
 \def\grph_rotate_finish_yes
   {\begincsname\??rotatepreset\p_rotation_rotation\endcsname
-   \setbox\nextbox\vpack{\box\nextbox}% not really needed
+   \setbox\nextbox\naturalvpack{\box\nextbox}% not really needed
    \dontcomplain
    \ifconditional\c_grph_rotate_center
      \d_grph_rotate_saved_width \wd\nextbox
      \d_grph_rotate_saved_height\ht\nextbox
      \d_grph_rotate_saved_depth \dp\nextbox
-     \setbox\nextbox\vpack{\vskip.5\ht\nextbox\hskip-.5\wd\nextbox\box\nextbox}%
+     \setbox\nextbox\naturalvpack{\vskip.5\ht\nextbox\hskip-.5\wd\nextbox\box\nextbox}%
      \smashbox\nextbox
    \fi
    \d_grph_rotate_width \wd\nextbox
    \d_grph_rotate_height\ht\nextbox
    \d_grph_rotate_depth \dp\nextbox
-   \setbox\nextbox\vpack{\hpack{\raise\dp\nextbox\box\nextbox}}%
+   \setbox\nextbox\naturalvpack{\naturalhpack{\raise\dp\nextbox\box\nextbox}}%
    \d_grph_rotate_used_height \ht\nextbox
    % much of the next happens in lua (all the sin and cos) so we can do that in
    % one go if needed
@@ -981,7 +985,7 @@
      \fi\fi
    \fi
    \ifconditional\c_grph_rotate_center
-     \setbox\nextbox\vpack{\vskip-.5\d_grph_rotate_saved_height\hskip.5\d_grph_rotate_saved_height\box\nextbox}%
+     \setbox\nextbox\naturalvpack{\vskip-.5\d_grph_rotate_saved_height\hskip.5\d_grph_rotate_saved_height\box\nextbox}%
      \wd\nextbox\d_grph_rotate_saved_width
      \ht\nextbox\d_grph_rotate_saved_height
      \dp\nextbox\d_grph_rotate_saved_depth
@@ -1047,9 +1051,9 @@
    \fi}
 
 \def\grph_rotate_apply
-  {\setbox\nextbox\vpack to \d_grph_rotate_y_size
+  {\setbox\nextbox\naturalvpack to \d_grph_rotate_y_size
      {\vfill
-      \hpack to \d_grph_rotate_x_size
+      \naturalhpack to \d_grph_rotate_x_size
         {\dostartrotation\p_rotation_rotation
            \wd\nextbox\zeropoint
            \ht\nextbox\zeropoint
@@ -1057,7 +1061,7 @@
          \dostoprotation
          \hfill}%
       \kern\d_grph_rotate_y_position}%
-   \setbox\nextbox\hpack
+   \setbox\nextbox\naturalhpack
      {\kern\dimexpr\d_grph_rotate_x_position+\d_grph_rotate_x_offset\relax
       \lower\d_grph_rotate_y_offset\box\nextbox}}
 
diff --git a/tex/context/base/mkiv/meta-imp-symbols.mkxl b/tex/context/base/mkiv/meta-imp-symbols.mkxl
index 7d4cb4005..f88fd6f87 100644
--- a/tex/context/base/mkiv/meta-imp-symbols.mkxl
+++ b/tex/context/base/mkiv/meta-imp-symbols.mkxl
@@ -79,7 +79,7 @@
 
 \starttext
 
-\definefontfeature[metasymbols][mps=symbols]
+\definefontfeature[metasymbols][metapost=symbols]
 
 \definefont[MyFont] [Serif*default,metasymbols sa 1]
 
diff --git a/tex/context/base/mkiv/mult-ini.mkiv b/tex/context/base/mkiv/mult-ini.mkiv
index 76a5bc09b..641c8a4f5 100644
--- a/tex/context/base/mkiv/mult-ini.mkiv
+++ b/tex/context/base/mkiv/mult-ini.mkiv
@@ -124,6 +124,7 @@
 \def\s!top   {top}
 \def\s!both  {both}
 
+\def\s!reverse    {reverse}
 \def\s!orientation{orientation}
 \def\s!xoffset    {xoffset}
 \def\s!xmove      {xmove}
diff --git a/tex/context/base/mkiv/spac-ali.mkiv b/tex/context/base/mkiv/spac-ali.mkiv
index f80b1a192..8451e2494 100644
--- a/tex/context/base/mkiv/spac-ali.mkiv
+++ b/tex/context/base/mkiv/spac-ali.mkiv
@@ -1153,26 +1153,6 @@
 \letvalue{\??alignsimplereverse\v!flushright}\spac_align_simple_left
 \letvalue{\??alignsimplereverse\v!middle    }\spac_align_simple_middle
 
-% \unexpanded\def\simplealignedbox#1#2%
-%   {\hbox \ifdim#1>\zeropoint to #1
-%      \csname\??alignsimple\ifcsname\??alignsimple#2\endcsname#2\else\v!right\fi\expandafter\endcsname
-%    \fi}
-
-% \unexpanded\def\simplealignedboxplus#1#2#3%
-%   {\hbox #3 \ifdim#1>\zeropoint to #1
-%      \csname\??alignsimple\ifcsname\??alignsimple#2\endcsname#2\else\v!right\fi\expandafter\endcsname
-%    \fi}
-
-% \unexpanded\def\simplealignedbox#1#2%
-%   {\hbox \ifdim#1>\zeropoint to #1
-%      \csname\??alignsimple\ifcsname\??alignsimple#2\endcsname#2\else\v!right\fi\expandafter\endcsname
-%    \fi}
-%
-% \unexpanded\def\simplealignedboxplus#1#2#3%
-%   {\hbox #3 \ifdim#1>\zeropoint to #1
-%      \csname\??alignsimple\ifcsname\??alignsimple#2\endcsname#2\else\v!right\fi\expandafter\endcsname
-%    \fi}
-
 \unexpanded\def\simplealignedbox#1#2%
   {\hbox \ifdim#1>\zeropoint to #1
      \ifcsname\??alignsimple#2\endcsname
@@ -1202,16 +1182,6 @@
 
 \newconditional\alignsimplelefttoright \settrue\alignsimplelefttoright
 
-% \unexpanded\def\simplereversealignedbox#1#2%
-%   {\hbox \ifdim#1>\zeropoint to #1
-%      \csname\??alignsimplereverse\ifcsname\??alignsimplereverse#2\endcsname#2\else\v!left\fi\expandafter\endcsname
-%    \fi}
-%
-% \unexpanded\def\simplereversealignedboxplus#1#2#3%
-%   {\hbox #3 \ifdim#1>\zeropoint to #1
-%      \csname\??alignsimplereverse\ifcsname\??alignsimplereverse#2\endcsname#2\else\v!left\fi\expandafter\endcsname
-%    \fi}
-
 \unexpanded\def\simplereversealignedbox#1#2%
   {\hbox \ifdim#1>\zeropoint to #1
      \ifcsname\??alignsimplereverse#2\endcsname
@@ -1253,5 +1223,17 @@
 \def\spac_align_definehbox[#1][#2]%
   {\setvalue{hbox#1}##1{\hbox to #2{\begstrut##1\endstrut\hss}}}
 
+%D Some direction related helpers:
+
+\installcorenamespace {reverse}
+
+\setvalue{\??reverse\v!normal }{\ifconditional\inlinelefttoright\else\s!reverse\fi}
+\setvalue{\??reverse\v!reverse}{\ifconditional\inlinelefttoright     \s!reverse\fi}
+
+\ifcase\contextlmtxmode
+  \let\usedirectionparameterreverse\gobbleoneargument
+\else
+  \def\usedirectionparameterreverse#1{\begincsname\??reverse#1\c!direction\endcsname}
+\fi
 
 \protect \endinput
diff --git a/tex/context/base/mkiv/status-files.pdf b/tex/context/base/mkiv/status-files.pdf
index a3b5ea975..7353957fb 100644
--- a/tex/context/base/mkiv/status-files.pdf
+++ b/tex/context/base/mkiv/status-files.pdf
diff --git a/tex/context/base/mkiv/status-lua.pdf b/tex/context/base/mkiv/status-lua.pdf
index 368a539cd..49f5b9660 100644
--- a/tex/context/base/mkiv/status-lua.pdf
+++ b/tex/context/base/mkiv/status-lua.pdf
diff --git a/tex/context/base/mkiv/tabl-ntb.mkiv b/tex/context/base/mkiv/tabl-ntb.mkiv
index 8162f3964..8ff02330a 100644
--- a/tex/context/base/mkiv/tabl-ntb.mkiv
+++ b/tex/context/base/mkiv/tabl-ntb.mkiv
@@ -1303,8 +1303,13 @@
    \ifconditional\c_strc_tags_enabled
      \tabl_ntb_start_tagged
    \fi
-   \hbox\bgroup
-   \kern\dimexpr\d_tabl_ntb_leftmargindistance\relax}
+   % we are in sync but just to be sure:
+   \synchronizedisplaydirection
+   \synchronizeinlinedirection
+   \hbox
+     \usedirectionparameterreverse\naturaltablelocalparameter
+     \bgroup
+     \kern\dimexpr\d_tabl_ntb_leftmargindistance\relax}
 
 \unexpanded\def\tabl_ntb_row_align_stop
   {\kern\dimexpr\d_tabl_ntb_rightmargindistance-\d_tabl_ntb_columndistance\relax
diff --git a/tex/context/base/mkiv/tabl-tab.mkiv b/tex/context/base/mkiv/tabl-tab.mkiv
index b137ac16c..3799964c9 100644
--- a/tex/context/base/mkiv/tabl-tab.mkiv
+++ b/tex/context/base/mkiv/tabl-tab.mkiv
@@ -864,8 +864,13 @@
    \lineskip     \zeropoint
    \tabskip      \zeropoint
    \edef\p_tabl_table_textwidth{\directtablesparameter\c!textwidth}%
-   \halign \ifx\p_tabl_table_textwidth\empty \else to \ifx\p_tabl_table_textwidth\v!max \hsize \else \p_tabl_table_textwidth \fi\fi
-%    \the\!taTableSpread
+   % we are not in sync so:
+   \synchronizedisplaydirection
+   \synchronizeinlinedirection
+   \halign
+     \usedirectionparameterreverse\directtablesparameter
+     \ifx\p_tabl_table_textwidth\empty \else to \ifx\p_tabl_table_textwidth\v!max \hsize \else \p_tabl_table_textwidth \fi\fi
+    %\the\!taTableSpread
      \bgroup
      \span
      \the\!taPreamble
diff --git a/tex/context/base/mkiv/tabl-tbl.mkiv b/tex/context/base/mkiv/tabl-tbl.mkiv
index b6f8a684c..6e87d1863 100644
--- a/tex/context/base/mkiv/tabl-tbl.mkiv
+++ b/tex/context/base/mkiv/tabl-tbl.mkiv
@@ -2300,7 +2300,6 @@
      \t_tabl_tabulate_preamble
        {\aligntab
         \tabl_tabulate_flush_indent
-% \global\advance\c_tabl_tabulate_noflines\plusone
         \strut
         \alignmark\alignmark
         \tabskip\d_tabl_tabulate_margin
@@ -2312,7 +2311,6 @@
      \t_tabl_tabulate_preamble
        {\aligntab
         \tabl_tabulate_flush_indent
-% \global\advance\c_tabl_tabulate_noflines\plusone
         \strut
         \alignmark\alignmark
         \aligntab
@@ -2326,7 +2324,6 @@
    \c_tabl_tabulate_has_rule_spec_last \zerocount
    \clf_presettabulate{\detokenizedtabulationparameter\c!format}%
    %
- % \edef\totaltabulatecolumns{\the\numexpr3*\c_tabl_tabulate_columns+\plusfour}%
    \d_tabl_tabulate_width\zeropoint
    \tabl_tabulate_initialize_boxes\c_tabl_tabulate_columns
    \toksapp\t_tabl_tabulate_preamble{%
@@ -2355,12 +2352,12 @@
      {\notesenabledfalse
       \d_tabl_tabulate_indent\zeropoint
       \settrialtypesetting % very important
-\anch_backgrounds_text_level_start
+      \anch_backgrounds_text_level_start
       \expandafter\halign\expandafter{\the\t_tabl_tabulate_preamble\crcr\tabl_tabulate_insert_content\crcr}}%
-\anch_backgrounds_text_level_stop
-\ifcase\c_anch_backgrounds_text_state\else
-  \global\settrue\tablehaspositions
-\fi
+      \anch_backgrounds_text_level_stop
+      \ifcase\c_anch_backgrounds_text_state\else
+        \global\settrue\tablehaspositions
+      \fi
    \ifnum\c_tabl_tabulate_nofauto>\zerocount
      % so, even if the natural size is larger, in the final run, we force the calculated width
      \d_tabl_tabulate_width\dimexpr\hsize-\wd\scratchbox-\d_tabl_tabulate_width_p-\d_tabl_tabulate_width_w\relax
@@ -2400,12 +2397,20 @@
    \dostarttaggedchained\t!tabulate\empty\??tabulation
    \dostarttagged\t!tabulaterow\empty
    \setfalse\inhibitmargindata % new per 2012.06.13 ... really needed
- % \everycr\expandafter{\the\everycr\noalign{\the\t_tabl_tabulate_every_real_row}\dostoptagged\dostarttagged\t!tabulaterow\empty}%
-   \toksapp\everycr{\noalign{\the\t_tabl_tabulate_every_real_row}\dostoptagged\dostarttagged\t!tabulaterow\empty}%
-   \expandafter\halign\expandafter{\the\t_tabl_tabulate_preamble\crcr\tabl_tabulate_insert_content\crcr}%
+   \toksapp\everycr{%
+     \noalign{\the\t_tabl_tabulate_every_real_row}%
+     \dostoptagged
+     \dostarttagged\t!tabulaterow\empty
+   }%
+    % we are in sync but just to be sure:
+   \synchronizedisplaydirection
+   \synchronizeinlinedirection
+   \halign
+     \usedirectionparameterreverse\tabulateparameter
+     \expandafter{\the\t_tabl_tabulate_preamble\crcr\tabl_tabulate_insert_content\crcr}%
    \dostoptagged
    \dostoptagged
-   \ifhmode\par\prevdepth\strutdp\fi % nog eens beter, temporary hack
+   \ifhmode\par\prevdepth\strutdp\fi % temporary hack
    \ifx\p_distance\v!grid
      \vskip-\strutdp % experimental tm-prikkels
    \fi
diff --git a/tex/context/interface/mkiv/i-context.pdf b/tex/context/interface/mkiv/i-context.pdf
index 3ae23f53b..d67072314 100644
--- a/tex/context/interface/mkiv/i-context.pdf
+++ b/tex/context/interface/mkiv/i-context.pdf
diff --git a/tex/context/interface/mkiv/i-readme.pdf b/tex/context/interface/mkiv/i-readme.pdf
index 41f2d5ab8..fae19b600 100644
--- a/tex/context/interface/mkiv/i-readme.pdf
+++ b/tex/context/interface/mkiv/i-readme.pdf
diff --git a/tex/generic/context/luatex/luatex-fonts-merged.lua b/tex/generic/context/luatex/luatex-fonts-merged.lua
index 5ed7e29d4..fc4f2205d 100644
--- a/tex/generic/context/luatex/luatex-fonts-merged.lua
+++ b/tex/generic/context/luatex/luatex-fonts-merged.lua
@@ -1,6 +1,6 @@
 -- merged file : c:/data/develop/context/sources/luatex-fonts-merged.lua
 -- parent file : c:/data/develop/context/sources/luatex-fonts.lua
--- merge date  : 12/27/19 16:34:49
+-- merge date  : 12/30/19 19:06:56
 
 do -- begin closure to overcome local limits and interference