optex (14feb24)

git-svn-id: svn://tug.org/texlive/trunk@69861 c570f23f-e606-0410-a88d-b1316a301751

32 files changed, 696 insertions, 94 deletions

diff --git a/Master/texmf-dist/doc/optex/base/README b/Master/texmf-dist/doc/optex/base/README
index 3dab8b68f15..aa84d46627b 100644
--- a/Master/texmf-dist/doc/optex/base/README
+++ b/Master/texmf-dist/doc/optex/base/README
@@ -22,6 +22,11 @@ doc/   ... PDF version of the OpTeX documentation and sources.
 
 History:
 
+<1.14> Feb 2024:
+       More links in doc: TeX primitives linked to TeX in a Nutshell.
+       \trykv returns unexpanded value of the key=value pair.
+       \bracedparam reimplemented, improved.
+       \optdef can create an expandable macro.
 <1.13> Nov 2023:
        \usebib completely reimplemented, libranian package not needed from now.
        Selected OpTeX tricks are automatically loaded when a relevant macro is used.
diff --git a/Master/texmf-dist/doc/optex/base/optex-doc.pdf b/Master/texmf-dist/doc/optex/base/optex-doc.pdf
index aebe78c6343..731b1ab1795 100644
--- a/Master/texmf-dist/doc/optex/base/optex-doc.pdf
+++ b/Master/texmf-dist/doc/optex/base/optex-doc.pdf
diff --git a/Master/texmf-dist/doc/optex/base/optex-doc.tex b/Master/texmf-dist/doc/optex/base/optex-doc.tex
index d780ceeeefb..eb0fcc56825 100644
--- a/Master/texmf-dist/doc/optex/base/optex-doc.tex
+++ b/Master/texmf-dist/doc/optex/base/optex-doc.tex
@@ -21,9 +21,9 @@
 \tit Format Based on Plain \TeX/ and OPmac\fnotemark1
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
-\hfill Version 1.13
+\hfill Version 1.14
 
-\centerline{\it Petr Olšák, 2020, 2021, 2022, 2023}
+\centerline{\it Petr Olšák, 2020, 2021, 2022, 2023, 2024}
 
 \bigskip
 \centerline{\url{http://petr.olsak.net/optex}}
@@ -65,7 +65,7 @@ The main goal of \OpTeX/ is:
 If you need to customize your document or you need to use something
 very specific, then you can copy relevant parts of \OpTeX/ macros into your macro
 file and do changes to these macros here. This is a significant difference from
-\LaTeX/ or ConTeXt, which is an attempt to create a new user level with a
+\LaTeX/ or \ConTeXt/, which is an attempt to create a new user level with a
 plenty of non-primitive parameters and syntax hiding \TeX/ internals.
 The macros from \OpTeX/ are simple and straightforward because they solve only
 what is explicitly needed, they do not create a new user level for
@@ -113,13 +113,28 @@ document \ulink[http://petr.olsak.net/ftp/olsak/optex/tex-nutshell.pdf]
 \nonum\chap Index
 
 \noindent
-There are all control sequences used in \OpTeX/ except \TeX/ primitives.
-If you want to know something about \TeX/ primitives then you can use another index from
-\ulink[http://petr.olsak.net/ftp/olsak/optex/tex-nutshell.pdf\#ref:index]{\TeX/ in a Nutshell}.
+Control sequences declared by \OpTeX/ have page list here and they are
+internal links to their main documentation point. \TeX/ primitives used by
+\OpTeX/ have no page list here and they are external links to
+\ulink[http://petr.olsak.net/ftp/olsak/optex/tex-nutshell.pdf]{\TeX/ in a Nutshell}
+to the place where the primitive is briefly described.
+%Only primitives used in \OpTeX/ macros are listed here. There are much more
+%primitives implemented in \LuaTeX/, see
+%\ulink[https://www.pragma-ade.com/general/manuals/luatex.pdf]{\LuaTeX/ manual},
+%section \"primitives".
 
 % active links directly to the main documentation point but not to the pages:
-\def\_printii #1&{\noindent\hskip-\iindent \link[cs:#1]\Blue{\bslash #1} }
+\def\_printii #1&{%
+   \noindent\hskip-\iindent
+   \ea\ifx \csname,#1\endcsname \empty % primitive
+      \_dest[cs:#1]% main documentation point for primitives is in the Index
+      \ulink[http://petr.olsak.net/ftp/olsak/optex/tex-nutshell.pdf\#cs:#1]{\bslash#1}
+      \ea\ea\ea\nopages
+   \else \link[cs:#1]\Blue{\bslash #1} % OpTeX macro
+   \fi
+}
 \def\_pgprintA #1{#1}
+\def\nopages#1&{*\_par}
 \begmulti 3 \tt \makeindex \endmulti
 
 \bye
diff --git a/Master/texmf-dist/doc/optex/base/optex-techdoc.tex b/Master/texmf-dist/doc/optex/base/optex-techdoc.tex
index 78156194047..894f2d8cd3f 100644
--- a/Master/texmf-dist/doc/optex/base/optex-techdoc.tex
+++ b/Master/texmf-dist/doc/optex/base/optex-techdoc.tex
@@ -5,6 +5,7 @@
 % (three times) to create whole documentation including all references and the index.
 
 \load [doc.opm]
+\input primitives
 
 \thisoutline {TECHNICAL DOCUMENTATION}
 
diff --git a/Master/texmf-dist/doc/optex/base/optex-userdoc.tex b/Master/texmf-dist/doc/optex/base/optex-userdoc.tex
index 61157b0d31d..c99e63c21d0 100644
--- a/Master/texmf-dist/doc/optex/base/optex-userdoc.tex
+++ b/Master/texmf-dist/doc/optex/base/optex-userdoc.tex
@@ -1896,7 +1896,7 @@ tests, if the current point is at odd page regardless of asynchronous processing
 \tpg[perpage]\t\incrpp. \t\thepp, \t\thepplast, \t\truepage\
 does per-page counting of objects.
 
-\tpg[keystrokes]\t\keystoke\
+\tpg[keystrokes]\t\keystroke\
 prints given text in a keystroke-like frame.
 
 \tpg[longtable]\t\longtable\
@@ -1905,15 +1905,21 @@ alows to break a table to more pages and repeates header.
 \tpg[lot]\t\makeLOF, \t\makeLOT, \t\captionF, \t\captionT\
 create list of tables and list of figures similar to \^`\maketoc`.
 
+\tpg[onlyifnew]\t\onlyifnew\
+only define a macro if it is not already defined.
+
+\tpg[pgforeground]\t\pgforeground\
+adds material to the foreground of each page.
+
 \tpg[linnum]\t\pstart, \t\pend\
 dispalys line numbers of the marked text in the margin.
 
-\tpg[shadedframe]\t\shadedframe\
-colored rectangular frames with simple shadows.
-
 \tpg[roundframe]\t\roundframe\
 colored frames with rounded corners and many options.
 
+\tpg[shadedframe]\t\shadedframe\
+colored rectangular frames with simple shadows.
+
 \tpg[scaleto]\t\scaleto, \t\scaletof\
 text font size changed to the desired width.
 
@@ -2072,8 +2078,8 @@ documentation.
    Example: \~`\isinlist\list{<text>}\iftrue` does `\iftrue` if <text> is in `\list`.\nl
 \^`\isnextchar`` <char>{<text1>}{<text2>}` performs <text1> if next
    character is <char>, else <text2>.\nl
-\~`\kv` `{<key>}` expands to value when key-value parameters are used.
-   See also \~`\iskv`, \~`\readkv`, \~`\kvx`, \~`\nokvx`.\nl
+\~`\kv` `{<key>}` expands to a value given by key=value.
+   See also \~`\trykv`, \~`\iskv`, \~`\readkv`, \~`\kvx`, \~`\nokvx`.\nl
 \^`\loop` `...` \^`\repeat` is classical Plain \TeX/ loop.\nl
 \^`\mathstyles`` {<math list>}` enables to create macros dependent on current math style.\nl
 \~`\_namespace`` {<pkg>}` declares name space used by package writers.\nl
diff --git a/Master/texmf-dist/doc/optex/base/primitives.tex b/Master/texmf-dist/doc/optex/base/primitives.tex
new file mode 100644
index 00000000000..11ced8bca16
--- /dev/null
+++ b/Master/texmf-dist/doc/optex/base/primitives.tex
@@ -0,0 +1,387 @@
+%% This is part of the OpTeX project, see http://petr.olsak.net/optex
+
+% There is a list of TeX primitives used by OpTeX, they are printed in the Index.
+
+\def\addprimitive#1{\_ea\addprimitiveA \_csname,\_csstring#1\_endcsname}
+\def\addprimitiveA#1{\ifx#1\relax\_addto\_iilist#1\fi \_gdef#1{}}
+\def\_intlink{\_link[cs:\_tmpa]{\choosecolor}{\_csstring\\\_tmpb}}
+\def\choosecolor{\_ea\ifx\csname,\_tmpa\endcsname\empty \primcolor\else\ulinkcolor\fi}
+\def\primcolor{\setcmykcolor{.7 0 .7 .5}}
+
+\xargs\addprimitive
+%\above
+\abovedisplayshortskip
+\abovedisplayskip
+%\abovewithdelims
+\accent
+\adjdemerits
+\advance
+\afterassignment
+\aftergroup
+\atop
+\atopwithdelims
+\attributedef
+\baselineskip
+%\batchmode
+\begingroup
+\belowdisplayshortskip
+\belowdisplayskip
+\binoppenalty
+%\botmark
+\box
+\boxmaxdepth
+\breakafterdirmode
+\brokenpenalty
+%\catcode
+\catcodetable
+\char
+\chardef
+\cleaders
+\closein
+\closeout
+\clubpenalty
+\copy
+\countdef
+\cr
+\crampeddisplaystyle
+\crampedscriptstyle
+\crampedscriptscriptstyle
+\crampedtextstyle
+\crcr
+\csname
+\csstring
+\day
+\def
+\defaulthyphenchar
+\defaultskewchar
+\delcode
+\delimiter
+\delimiterfactor
+\delimitershortfall
+\detokenize
+\dimen
+\dimendef
+\dimexpr
+\directlua
+\discretionary
+%\displaylimits
+\displaystyle
+\displaywidowpenalty
+\displaywidth
+\divide
+\doublehyphendemerits
+\dump
+\edef
+%\efcode
+\else
+\emergencystretch
+\end
+\endcsname
+\endgroup
+\endinput
+\endlinechar
+\eqno
+\errmessage
+\errorcontextlines
+%\errorstopmode
+\escapechar
+\everycr
+\everydisplay
+\everyeof
+%\everyhbox
+\everyjob
+\everymath
+\everypar
+%\everyvbox
+\exhyphenpenalty
+\expandafter
+\expanded
+\fi
+\finalhyphendemerits
+\firstmark
+\floatingpenalty
+\font
+\fontdimen
+\fontname
+\futurelet
+\gdef
+\glet
+\global
+\globaldefs
+\halign
+\hangafter
+\hangindent
+\hbadness
+\hbox
+\hfil
+\hfill
+%\hfilneg
+\hfuzz
+\hoffset
+\hrule
+\hsize
+\hskip
+\hss
+\hyphenation
+\hyphenchar
+\hyphenpenalty
+\if
+\ifcase
+\ifcat
+\ifcsname
+\ifdim
+\ifeof
+\iffalse
+%\ifhbox
+\ifhmode
+\ifinner
+\ifmmode
+\ifnum
+\ifodd
+\iftrue
+%\ifvbox
+\ifvmode
+\ifvoid
+\ifx
+\ignorespaces
+\immediate
+\immediateassigned
+\immediateassignment
+\indent
+\input
+\inputlineno
+\interlinepenalty
+\jobname
+\kern
+%\knaccode
+%\knbccode
+%\knbscode
+\language
+\lastbox
+\lastnamedcs
+\lastpenalty
+\lastskip
+\lccode
+\leaders
+\left
+\lefthyphenmin
+\leftskip
+\leqno
+\let
+%\letterspacefont
+\limits
+\linepenalty
+\lineskip
+\lineskiplimit
+\long
+%\looseness
+\lower
+\lowercase
+%\lpcode
+\luaescapestring
+\mag
+\mark
+\mathaccent
+\mathbin
+\mathchar
+\mathchardef
+\mathchoice
+\mathclose
+\mathcode
+\matheqdirmode
+\mathop
+\mathopen
+\mathord
+\mathpunct
+\mathrel
+\mathsurround
+\maxdepth
+\meaning
+\medmuskip
+\message
+\middle
+\mkern
+\month
+\moveleft
+\moveright
+\mskip
+\multiply
+\muskip
+\muskipdef
+\newlinechar
+\noalign
+\noexpand
+\noindent
+\nolimits
+\nonscript
+%\nonstopmode
+\nulldelimiterspace
+\nullfont
+\number
+\numexpr
+\omit
+\openin
+\openout
+\outer
+\output
+\outputmode
+\outputpenalty
+\over
+\overfullrule
+%\overwithdelims
+\par
+\parfillskip
+\parindent
+%\parshape
+\parskip
+\patterns
+%\pdfadjustinterwordglue
+%\pdfadjustspacing
+\pdfcatalog
+%\pdfcolorstack
+\pdfdest
+\pdfendlink
+\pdfextension
+\pdffeedback
+%\pdffontexpand
+\pdfhorigin
+\pdfinfo
+\pdflastximage
+\pdflastxpos
+\pdflastypos
+\pdfliteral
+%\pdfnormaldeviate
+\pdfoutline
+\pdfpageheight
+\pdfpagewidth
+%\pdfprotrudechars
+\pdfrefximage
+\pdfrestore
+\pdfsave
+\pdfsavepos
+\pdfsetmatrix
+%\pdfsetrandomseed
+\pdfstartlink
+%\pdfstrcmp
+%\pdfuniformdeviate
+\pdfvariable
+\pdfvorigin
+\pdfximage
+\penalty
+\postdisplaypenalty
+\predisplaypenalty
+\pretolerance
+\prevdepth
+\prevgraph
+\protected
+\protrudechars
+\radical
+\raise
+\read
+\relax
+\relpenalty
+\right
+\righthyphenmin
+\rightskip
+\romannumeral
+\root
+%\rpcode
+\savecatcodetable
+\scantextokens
+\scantokens
+\scriptfont
+\scriptscriptfont
+\scriptscriptstyle
+\scriptstyle
+%\scrollmode
+\setbox
+\sfcode
+%\shbscode
+\shipout
+\show
+\showbox
+\showboxbreadth
+\showboxdepth
+\showlists
+\showthe
+\skewchar
+\skip
+\skipdef
+\spacefactor
+\spaceskip
+\span
+%\special
+\splitmaxdepth
+\splittopskip
+\sqrt
+%\stbscode
+\string
+\suppressfontnotfounderror
+\tabskip
+\textfont
+\textstyle
+\the
+\thickmuskip
+\thinmuskip
+\time
+\toks
+\toksdef
+\tolerance
+%\topmark
+\topskip
+\tracingassigns
+\tracingcommands
+\tracinggroups
+\tracingifs
+\tracinglostchars
+\tracingmacros
+\tracingonline
+\tracingoutput
+\tracingpages
+\tracingparagraphs
+\tracingrestores
+\tracingscantokens
+\tracingstats
+\uccode
+\Uchar
+\uchyph
+\Udelcode
+\Udelimiter
+\Umathaccent
+\Umathchar
+\Umathchardef
+\Umathcode
+\unexpanded
+\unhbox
+\unhcopy
+\unless
+\unpenalty
+\unskip
+\unvbox
+\unvcopy
+\uppercase
+\Uradical
+\vadjust
+\valign
+\vbadness
+\vbox
+\vcenter
+\vfil
+\vfill
+\vfilneg
+\vfuzz
+\voffset
+\vrule
+\vsize
+\vskip
+\vsplit
+\vss
+\vtop
+\wd
+\widowpenalty
+\write
+\xdef
+%\xleaders
+\xspaceskip
+\year
+;
diff --git a/Master/texmf-dist/tex/optex/base/alloc.opm b/Master/texmf-dist/tex/optex/base/alloc.opm
index fae88d286ed..180adddeff4 100644
--- a/Master/texmf-dist/tex/optex/base/alloc.opm
+++ b/Master/texmf-dist/tex/optex/base/alloc.opm
@@ -120,19 +120,18 @@
 \_newdimen \tmpdim  \_newdimen \_tmpdim
 
    \_doc -----------------------------
-   A few registers are initialized like in plain\TeX/. We absolutely
+   A few registers: \`\maxdimen`, \`\hideskip` and
+   \`\centering` are initialized like in plain\TeX/. We absolutely
    don't support the `@`category dance, so `\z@skip`
-   `\z@`, `\p@` etc. are defined but not recommended in \OpTeX/.
-
-   The \`\_zo` and \`\_zoskip` (equivalents to `\z@` and `\z@skip`)
-   are declared here and used in some internal macros of \OpTeX/
-   for improving speed.
+   `\z@`, `\p@` etc. are defined but not recommended.
+   The \`\_zo`, \`\_zoskip` and \`\voidbox` (equivalents to
+   `\z@`, `\z@skip` and `\voidb@x`) are preferred in \OpTeX.
    \_cod -----------------------------
 
 \_newdimen\_maxdimen \_maxdimen=16383.99999pt % the largest legal <dimen>
-\_newdimen\_zo \_zo=0pt
 \_newskip\_hideskip \_hideskip=-1000pt plus 1fill % negative but can grow
 \_newskip\_centering \_centering=0pt plus 1000pt minus 1000pt
+\_newdimen\_zo \_zo=0pt
 \_newskip\_zoskip \_zoskip=0pt plus0pt minus0pt
 \_newbox\_voidbox % permanently void box register
 
diff --git a/Master/texmf-dist/tex/optex/base/doc.opm b/Master/texmf-dist/tex/optex/base/doc.opm
index fb96d35007e..c334019de29 100644
--- a/Master/texmf-dist/tex/optex/base/doc.opm
+++ b/Master/texmf-dist/tex/optex/base/doc.opm
@@ -1,6 +1,6 @@
 %% This is part of the OpTeX project, see http://petr.olsak.net/optex
 
-\_codedecl \printdoc {Macros for documentation printing <2022-12-11>} % loaded on demand by \load[doc]
+\_codedecl \printdoc {Macros for documentation printing <2023-12-10>} % loaded on demand by \load[doc]
 
    \_doc -----------------------------
    General decalarations.
@@ -41,8 +41,6 @@
    \_doc -----------------------------
    The listing mode is implemented here. The \`\maxlines`
    is maximal lines of code printed in the listing mode.
-   The \code{\\catcode`\\.=11} sets dot as letter in listngs (for package
-   documentation where `\.foo` sequeces exist).
    \_cod -----------------------------
 
 \_newcount \_maxlines   \_maxlines=100000
@@ -54,7 +52,7 @@
    \_typosize[8/10]
    \_let\_printverbline=\_printcodeline
    \_ttline=\_inputlineno
-   \_setverb \_catcode`\.=11
+   \_setverb
    \_ifnum\_ttline<0 \_let\_printverblinenum=\_relax \_else \_initverblinenum \_fi
    \_adef{ }{\ }\_adef\^^I{\t}\_parindent=\_ttindent \_parskip=0pt
    \_def\t{\_hskip \_dimexpr\_tabspaces em/2\_relax}%
@@ -88,7 +86,8 @@
    the first `_` or `.` is removed from `\_tmpa` and the test is repeated.
    \_cod -----------------------------
 
-\_def\_makecs{\_def\_tmpa{}\_futurelet\_next\_makecsA}
+\_def\_makecs{\_def\_tmpa{}\_futurelet\_next\_makecsD}
+\_def\_makecsD{\_if.\_next \_ea\_makecsB \_else \_ea\_makecsA \_fi} % \.foo is accepted
 \_def\_makecsA{\_ifcat a\_noexpand\_next \_ea\_makecsB \_else \_ea\_makecsF \_fi}
 \_def\_makecsB#1{\_addto\_tmpa{#1}\_futurelet\_next\_makecsA}
 \_def\_makecsF{\_let\_tmpb=\_tmpa
@@ -363,6 +362,7 @@ have the same meaning: `\optexdoclink` in this example. And
 
 \endinput
 
+2023-12-10 \catcode`.=11 removed, issue solved by \_makecsD.
 2022-12-11 \_opwaning "Second main documentation point" introduced.
 2022-12-11 \_docrefcodes added (bug due to 2022-11-13 fixed).
 2022-11-21 magenta color for internal links instead green.
diff --git a/Master/texmf-dist/tex/optex/base/f-fbb.opm b/Master/texmf-dist/tex/optex/base/f-fbb.opm
new file mode 100644
index 00000000000..ac69a89a992
--- /dev/null
+++ b/Master/texmf-dist/tex/optex/base/f-fbb.opm
@@ -0,0 +1,26 @@
+%% This is part of the OpTeX project, see http://petr.olsak.net/optex
+
+\_famdecl [fbb] \FBembo {Bembo–like fonts derived from Cardo}
+        {\caps \swash} {\rm \bf \it \bi} {}
+        {[fbb-Regular]}
+        {\_def\_fontnamegen {[fbb-\_currV]:script=latn;\_capsV\_swaV\_fontfeatures}}
+
+\_wlog{\_detokenize{%
+Modifier:^^J
+ \caps ...... caps & small caps + old digits^^J
+ \swash ..... alternative Q letter and some other characters^^J
+}}
+
+\_moddef \resetmod {\_fsetV caps={},swa={} \_fvars Regular Bold Italic BoldItalic }
+\_moddef \caps     {\_fsetV caps=+smcp;\_ffonum; }
+\_moddef \swash    {\_fsetV swa=+swsh;+salt; }
+
+\_initfontfamily % new font family must be initialized
+
+\_endcode
+
+See historical notice in texdoc fbb.
+
+See the file `f-heros.opm` for information about principles of such
+font-macro-files.
+
diff --git a/Master/texmf-dist/tex/optex/base/f-gentium.opm b/Master/texmf-dist/tex/optex/base/f-gentium.opm
new file mode 100644
index 00000000000..e6775695c23
--- /dev/null
+++ b/Master/texmf-dist/tex/optex/base/f-gentium.opm
@@ -0,0 +1,26 @@
+%% This is part of the OpTeX project, see http://petr.olsak.net/optex
+
+\_famdecl [Gentium] \Gentium {Serif free fonts, support Greek, Cyrillic, IPA}
+        {\caps} {\rm \bf \it \bi} {Termes}
+        {[GentiumPlus-Regular]}
+        {\_def\_fontnamegen {[Gentium\_bkV Plus-\_currV]:\_capsV\_fontfeatures}}
+
+\_wlog{\_detokenize{%
+Modifiers:^^J
+ \caps ...... caps & small caps^^J
+ \book ...... Book variants (a little bolder)^^J
+}}
+
+\_moddef \resetmod {\_fsetV caps={} \_fsetV bk={} \_fvars Regular Bold Italic BoldItalic }
+\_moddef \caps     {\_fsetV caps=+smcp;\_ffonum; }
+\_moddef \book     {\_fsetV bk=Book }
+
+\_initfontfamily % new font family must be initialized
+
+\_loadmath {[texgyretermes-math]}
+
+\_endcode
+
+See the file `f-heros.opm` for information about principles of such
+font-macro-files.
+
diff --git a/Master/texmf-dist/tex/optex/base/fams-ini.opm b/Master/texmf-dist/tex/optex/base/fams-ini.opm
index 6dc19ca9b1f..7d3f0332a83 100644
--- a/Master/texmf-dist/tex/optex/base/fams-ini.opm
+++ b/Master/texmf-dist/tex/optex/base/fams-ini.opm
@@ -107,6 +107,11 @@
      \caps: {\rm\bf\it\bi} \caps\semibold: {\bf\bi} \caps\sans: {\rm\bf\it}
      -: {\mono\initials\displ\keybr} }
 
+\_famfrom{Victor Gaultney}
+\_faminfo [Gentium] {Serif free fonts, support Greek, Cyrrilic, IPA} {f-gentium}
+   { -,\caps,\book,\book\caps: {\rm\bf\it\bi} }
+\_famalias [GentiumPro]
+
 \_famfrom {Daniel Flipo}
 \_faminfo [KP fonts] {KP fonts -- Johannes Kepler project} {f-kpfonts}
    { -,\light,\sans,\mono, \caps, \caps\light, \caps\sans,\caps\mono,\swash: {\rm\bf\it\bi} }
@@ -249,6 +254,11 @@
 \_faminfo [GFSBodoni] {Based on Bodoni with greek letters} {f-gfsbodoni}
    { -: {\rm\bf\it\bi} \caps: {\rm} }
 
+\_famfrom {David J. Perry, Michael Sharpe}
+\_faminfo [fbb] {Bembo–like fonts derived from Cardo} {f-fbb}
+   { -,\caps: {\rm\bf\it\bi} \swash: {\rm} }
+\_famalias [Bembo] \_famalias [FBembo]
+
 \_famfrom {bBox Type GmbH, Carrois Corporate GbR, Edenspiekermann AG}
 \_faminfo [Fira] {Humanist sans-serif, originally designed for Firefox OS} {f-fira}
    { \thin,\light,\book,-,\medium,\mono,\mono\medium,%
diff --git a/Master/texmf-dist/tex/optex/base/fonts-opmac.opm b/Master/texmf-dist/tex/optex/base/fonts-opmac.opm
index 158f19299ea..ca4d38b4ce1 100644
--- a/Master/texmf-dist/tex/optex/base/fonts-opmac.opm
+++ b/Master/texmf-dist/tex/optex/base/fonts-opmac.opm
@@ -171,10 +171,12 @@
    \_ea\_ifx \_the\_font \_tenbi \_additcorr \_bf  \_else
    \_it \_aftergroup\_afteritcorr\_fi\_fi\_fi
 }
-\_def\_additcorr{\_ifdim\_lastskip>\_zo
-   \_skip0=\_lastskip \_unskip\_italcorr \_hskip\_skip0 \_else\_italcorr \_fi}
+\_def\_additcorr{\_ifhmode \_ifdim\_lastskip>\_zo
+   \_skip0=\_lastskip \_unskip \_additcorrA \_hskip\_skip0 \_else \_additcorrA \_fi\_fi}
+\_def\_additcorrA{\_ifnum\_lastpenalty=\_zo \_italcorr \_else
+    \_ea\_unpenalty \_ea\_italcorr \_ea\_penalty \_the\_lastpenalty \_relax \_fi}
 \_def\_afteritcorr{\_futurelet\_next\_afteritcorrA}
-\_def\_afteritcorrA{\_ifx\_next.\_else\_ifx\_next,\_else \_italcorr \_fi\_fi}
+\_def\_afteritcorrA{\_ifhmode \_ifx\_next.\_else\_ifx\_next,\_else \_italcorr \_fi\_fi\_fi}
 \_let\_italcorr=\/
 
    \_doc -----------------------------
@@ -218,6 +220,7 @@
 \_endcode % -------------------------------------
 
 History:
+2024-01-25 \em: \_additcorr reimplemented to be more robust
 2022-02-22 \_setmainvalues: only \rm initialized
 2021-03-10 \boldify corrected
 2021-03-09 \mfontsrule and \_setmathfonts introduced
diff --git a/Master/texmf-dist/tex/optex/base/fonts-preload.opm b/Master/texmf-dist/tex/optex/base/fonts-preload.opm
index 8562da786c6..82387970e68 100644
--- a/Master/texmf-dist/tex/optex/base/fonts-preload.opm
+++ b/Master/texmf-dist/tex/optex/base/fonts-preload.opm
@@ -24,14 +24,14 @@
 \_endcode %---------------------------------------------------
 
 The format in Lua\TeX/ can download only non-Unicode fonts. Latin Modern EC is
-loaded here. These fonts are totally unusable in LuaTeX when languages with out
+loaded here. These fonts are totally unusable in \LuaTeX/ when languages with out
 of ASCII or ISO-8859-1 alphabets are used (for example Czech). We load only
 a few 8bit fonts here especially for simple testing of the format.
 But, if the user needs to do more serious work, he/she can
-use `\fontfam` macro to load a selected font family of Unicode fonts.
+use \^`\fontfam` macro to load a selected font family of Unicode fonts.
 
 We have a dilemma: when the Unicode fonts cannot be preloaded in the format then the basic
-font set can be loaded by `\everyjob`. But why to load a set of fonts at the
+font set can be loaded by \^`\everyjob`. But why to load a set of fonts at the
 beginning of every job when it is highly likely that the user will
 load something completely different. Our decision is: there is a basic 8bit
 font set in the format (for testing purposes only) and the user should load
diff --git a/Master/texmf-dist/tex/optex/base/fonts-resize.opm b/Master/texmf-dist/tex/optex/base/fonts-resize.opm
index 323e1d72a0c..f4dd3c40339 100644
--- a/Master/texmf-dist/tex/optex/base/fonts-resize.opm
+++ b/Master/texmf-dist/tex/optex/base/fonts-resize.opm
@@ -5,7 +5,7 @@
    \_doc -----------------------------
    \`\initunifonts` macro extends \LuaTeX's font capabilities,
    in order to be able to load Unicode fonts. Unfortunately, this part of
-   \OpTeX/ depends on the `luaotfload` package, which adapts Con\TeX/t's generic
+   \OpTeX/ depends on the `luaotfload` package, which adapts \ConTeXt's generic
    font loader for plain \TeX/ and \LaTeX. `luaotfload` uses Lua functions
    from \LaTeX's `luatexbase` namespace, we provide our own replacements.
    \^`\initunifonts` sets itself to relax because we don't want to do
@@ -62,7 +62,8 @@
    The `\fontname` primitive returns the <font file name> optionally
    followed by <size spec>. The \`\xfontname` macro expands to <font file name>
    without <size spec>. We need to remove the part `<space>at<dimen>` from
-   `\fontname` output. The letters `at` have category 12.
+   `\fontname` output. The letters `at` have category 12 in the \`\_stringat`
+   macro.
    \_cod -----------------------------
 
 \_edef\_stringat{\_string a\_string t}
diff --git a/Master/texmf-dist/tex/optex/base/hyperlinks.opm b/Master/texmf-dist/tex/optex/base/hyperlinks.opm
index 1d15b5e7341..7c3e78635aa 100644
--- a/Master/texmf-dist/tex/optex/base/hyperlinks.opm
+++ b/Master/texmf-dist/tex/optex/base/hyperlinks.opm
@@ -6,11 +6,12 @@
    \`\dest``[<type>:<spec>]` creates a destination of internal links. The
    destination is declared in the format `<type>:<spec>`. If the \^`\hyperlinks`
    command in not used, then `\dest` does nothing else it is set to `\_destactive`.
-   The \`\_destactive` is implemented by `\_pdfdest` primitive. It creates a box
+   The \`\_destactive` is implemented by `\_pdfdest` primitive. It creates a
+   box using \`\_destbox``[<type>:<spec>]`
    in which the destination is shifted by \`\_destheight`. The reason is that
    the destination is exactly at the top border of the PDF viewer but we want to see
-   the line where the destination is. The destination box is positioned by a
-   different way dependent on the current vertical or horizontal mode.
+   the line where the destination is. The destination box is positioned
+   differently dependent on the current vertical or horizontal mode.
    \_cod ----------------------------
 
 \_def\_destheight{1.4em}
diff --git a/Master/texmf-dist/tex/optex/base/if-macros.opm b/Master/texmf-dist/tex/optex/base/if-macros.opm
index 415b2c01c88..eae011ae260 100644
--- a/Master/texmf-dist/tex/optex/base/if-macros.opm
+++ b/Master/texmf-dist/tex/optex/base/if-macros.opm
@@ -1,6 +1,6 @@
 %% This is part of the OpTeX project, see http://petr.olsak.net/optex
 
-\_codedecl \newif {Special if-macros, is-macros and loops <2023-10-17>} % preloaded in format
+\_codedecl \newif {Special if-macros, is-macros and loops <2023-12-07>} % preloaded in format
 
    \_doc ----------------------------
    \secc Classical \code{\\newif}
@@ -95,8 +95,8 @@
    \_immediateassignment \_long\_gdef\_fbody#2{\_testparam##1..\_iftrue #3\_ea\_fbody\_fi}%
    \_fbody #1#2\_finbody\_getforstack
 }
-\_def\_testparam#1#2#3\_iftrue{\_ifx###1\_empty\_ea\_finbody\_else}
-\_def\_finbody#1\_finbody{}
+\_long\_def\_testparam#1#2#3\_iftrue{\_ifx###1\_empty\_ea\_finbody\_else}
+\_long\_def\_finbody#1\_finbody{}
 
 \_long\_def\foreach #1\do#2#{\_isempty{#2}\_iftrue
    \_afterfi{\_foreachA{#1}{##1}}\_else\_afterfi{\_foreachA{#1}{#2}}\_fi}
@@ -376,6 +376,7 @@
 
 \_endcode
 
+2023-12-07 \_testparam define \long (big fixed)
 2023-10-17 \qcasesof introduced, \xcasesof reimplemented.
 2023-01-16 \isnextchar created expandable.
 2022-12-02 \xcasesof: its first parameter is \long too.
diff --git a/Master/texmf-dist/tex/optex/base/keyval.opm b/Master/texmf-dist/tex/optex/base/keyval.opm
index 68f3fea5369..645a3b33a56 100644
--- a/Master/texmf-dist/tex/optex/base/keyval.opm
+++ b/Master/texmf-dist/tex/optex/base/keyval.opm
@@ -1,6 +1,6 @@
 %% This is part of the OpTeX project, see http://petr.olsak.net/optex
 
-\_codedecl \readkv {Key-value dictionaries <2023-10-23>} % preloaded in format
+\_codedecl \readkv {Key-value dictionaries <2023-11-24>} % preloaded in format
 
    \_doc ----------------------------
    {\bf Implementation.}\nl
@@ -12,8 +12,10 @@
    <value> after it.\nl
    The \`\kvx``{<key>}{<code>}` defines the `\_kvx:<dict>:<key>#1` macro
    and \`\nokvx``{<code>}` defines the `\_nokvx:<dict>:<key>` macro.\nl
-   The \`\kv``{<key>}` expands the `\_kv:<dict>:<key>` macro. If this macro isn't
-   defined then \`\_kvunknown` is processed. You can re-define it if you want.\nl
+   The \`\trykv``{<key>}{<code>}`
+   returns unexpanded value of <key> if declared, else it runs <code>.\nl
+   The \`\kv``{<key>}` returns expanded value of <key> if declared,
+   else returns expanded value of `.notdef` key else expands \`\_kvunknown`.\nl
    The \`\iskv``{<key>}\iftrue` (or `\iffalse`) is the test,
    if the `<key>` is defined in current <dict>.
    \_cod ----------------------------
@@ -28,12 +30,14 @@
           {\_trycs{_nokvx:\_the\_kvdict}{\_ea\_ignoreit}{#1}\_ea\_ignoreit}{#2}}
 \_def\_kvx#1#2{\_sdef{_kvx:\_the\_kvdict:#1}##1{#2}}
 \_def\_nokvx#1{\_sdef{_nokvx:\_the\_kvdict}##1\_ea\_ignoreit##2{#1}}
-\_def\_kv#1{\_trycs{\_kvcs#1}{\_kvunknown}}
+\_def\_trykv#1{\_ea\_trykvA \_begincsname\_kvcs#1\_endcsname \_ignoreit}
+\_def\_trykvA#1{\_ifx #1\_ignoreit \_ea\_useit\_else \_unexpanded\_ea{#1}\_fi}
+\_def\_kv#1{\_expanded{\_trykv{#1}{\_trykv{.\_csstring\notdef}{\_kvunknown}}}}
 \_def\_iskv#1#2{#2\_else\_ea\_unless\_fi \_ifcsname\_kvcs#1\_endcsname}
 \_def\_kvcs{_kv:\_the\_kvdict:}
 \_def\_kvunknown{???}
 
-\public \readkv \kvx \nokvx \kv \iskv ;
+\public \readkv \kvx \nokvx \kv \trykv \iskv ;
 
 \_endcode
 
@@ -75,7 +79,13 @@ register. First: we read default parameters by \^`\readkv\myframedefaults`
 and secondly the actual parameters are read by \^`\readkv{\the\opt}`.
 The last setting wins.
 Third: the values can be used by the expandable \^`\kv{<key>}` macro.
-The \^`\kv{<key>}` returns `???` if such key is not declared.
+The \^`\kv{<key>}` returns `???` if such a <key> isn't declared
+but if `.notdef` key is declared then its value is returned in this case.
+
+The \^`\kv{<key>}` macro fully expands the value of key. If you don't want to expand
+the value, use \^`\trykv``{<key>}{<code>}`. It returns unexpanded value of <key> if
+declared else returns expanded <code>. For example
+`\edef\macro{\trykv{key}{}}` defines `\macro` as the unexpanded value of the `key`.
 
 You can use keys without values in the parameters list too.
 Then you can ask if the key is declared by \^`\iskv``{<key>}\iftrue`
@@ -114,7 +124,7 @@ for undeclared <key>. Example: `\nokvx{\opwarning{Unknown option "#1"}}`.
 
 The default dictionary name (where key-value pairs are processed) is
 empty. You can use your specific dictionary by
-\^`\kvdict``={<name>}`. Then `\redakv`, `\kv`, `\iskv`, `\kvx` and `\nokvx`
+\^`\kvdict``={<name>}`. Then `\redakv`, `\kv`, `\trykv`, `\iskv`, `\kvx` and `\nokvx`
 macros use this named dictionary of <key>/<value> pairs.
 Package options can be processed when
 `\kvdict={pkg:<pkg>}`, example is the `\mathset` macro in
@@ -128,6 +138,7 @@ A more extensive example can be found in
 
 \_endinput
 
+2023-11-24 \trykv introduced.
 2023-10-23 minor changes in \readkv, empty key isn't processed.
 2023-03-11 \nokvx: \fi bug (due to \afterfi in \trycs) fixed.
 2023-01-13 \kvx parameter added, \nokvx introduced.
diff --git a/Master/texmf-dist/tex/optex/base/logos.opm b/Master/texmf-dist/tex/optex/base/logos.opm
index a510a74a304..1168c25b58f 100644
--- a/Master/texmf-dist/tex/optex/base/logos.opm
+++ b/Master/texmf-dist/tex/optex/base/logos.opm
@@ -1,6 +1,6 @@
 %% This is part of the OpTeX project, see http://petr.olsak.net/optex
 
-\_codedecl \TeX {Logos TeX, LuaTeX, etc. <2020-02-28>} % preloaded in format
+\_codedecl \TeX {Logos TeX, LuaTeX, etc. <2024-02-12>} % preloaded in format
 
    \_doc ----------------------------
    Despite plain \TeX/ each macro for logos ends by \`\ignoreslash`.
@@ -20,6 +20,18 @@
 
 \_public \TeX \OpTeX \LuaTeX \XeTeX \ignoreslash ;
 
+   \_doc ----------------------------
+   The  \`\ConTeXt` logo is implemented as in the \ConTeXt/ format itself.
+   The kerning between \"Con" and \"\TeX/t" is calculated by measuring the kerning
+   between the letters \"T" and \"e".
+   \_cod ----------------------------
+
+\_protected\_def \_ConTeXt{\_begingroup
+    Con\_setbox0=\_hbox{T\_kern\_zo e}\_setbox1=\_hbox{Te}{\_kern\_dimexpr\_wd1 -\_wd0}%
+    \_TeX t\_endgroup\_ignoreslash}
+
+\_public \ConTeXt ;
+
    \_doc -----------------------------
    The \`\_slantcorr` macro expands to the slant-correction of the current font. It is
    used to shifting A if the \`\LaTeX` logo is in italic.
@@ -53,9 +65,12 @@
    \_def\TeX{TeX\_ignslash}\_def\OpTeX{OpTeX\_ignslash}%
    \_def\LuaTeX{LuaTeX\_ignslash}\_def\XeTeX{XeTeX\_ignslash}%
    \_def\LaTeX{LaTeX\_ignslash}\_def\OPmac{OPmac\_ignslash}%
+   \_def\ConTeXt{ConTeXt\_ignslash}%
    \_def\CS{CS}\_def\csplain{csplain\_ignslash}%
 }
 \_public \ignslash ;
 
 \_endcode
 
+2024-02-12  ConTeXt logo added.
+2020-02-28  Released.
diff --git a/Master/texmf-dist/tex/optex/base/margins.opm b/Master/texmf-dist/tex/optex/base/margins.opm
index 0f544fc5dd6..c77926f9ad1 100644
--- a/Master/texmf-dist/tex/optex/base/margins.opm
+++ b/Master/texmf-dist/tex/optex/base/margins.opm
@@ -64,7 +64,9 @@
 
     \_doc ----------------------------
     \`\magscale` `[<factor>]` does `\mag=<factor>` and recalculates page
-    dimensions to their true values.
+    dimensions to their true values.\nl
+    \`\_truedimen``<dimen-register>` retunrs true value of <dimen-register>
+    regardless of `\mag`.
     \_cod ----------------------------
 
 \_def\_trueunit{}
diff --git a/Master/texmf-dist/tex/optex/base/math-macros.opm b/Master/texmf-dist/tex/optex/base/math-macros.opm
index 00adc9f1aaf..fa4317f25ae 100644
--- a/Master/texmf-dist/tex/optex/base/math-macros.opm
+++ b/Master/texmf-dist/tex/optex/base/math-macros.opm
@@ -347,7 +347,10 @@
    names from plain\TeX/ with `@` character are re-written in a more readable
    form.\nl
    \`\sp` is an alternative for `^`. The \`\sb` alternative for `_` was defined
-   at line 27 of the file `math-macros.opm`.
+   at line 27 of the file `math-macros.opm`.\nl
+   \`\_thinsk`, \`\_medsk`, \`\_thicksk` and \`\_thinneg` should be used
+   instead `\,`, `\>`, `\;` and `\!` in macros because a user can re-define
+   these single-letter sequences.
    \_cod -----------------------------
 
 \_let\_sp=^ \public \sp ;
diff --git a/Master/texmf-dist/tex/optex/base/more-macros.opm b/Master/texmf-dist/tex/optex/base/more-macros.opm
index 8c622432340..3f4916a9c3d 100644
--- a/Master/texmf-dist/tex/optex/base/more-macros.opm
+++ b/Master/texmf-dist/tex/optex/base/more-macros.opm
@@ -1,6 +1,6 @@
 %% This is part of the OpTeX project, see http://petr.olsak.net/optex
 
-\_codedecl \eoldef {OpTeX useful macros <2023-01-18>} % preloaded in format
+\_codedecl \eoldef {OpTeX useful macros <2024-02-10>} % preloaded in format
 
    \_doc -----------------------------
    We define \`\opinput` `{<file name>}` macro which
@@ -119,8 +119,9 @@
 
 \_newtoks\_opt
 \_def\_optdef#1[#2]{%
-   \_def#1{\_opt={#2}\_isnextchar[{\_cs{_oA:\_csstring#1}}{\_cs{_oB:\_csstring#1}}}%
-   \_sdef{_oA:\_csstring#1}[##1]{\_opt={##1}\_cs{_oB:\_csstring#1\_nospaceafter}}%
+   \_def#1{\_isnextchar[{\_cs{_oA:\_csstring#1}}{\_cs{_oA:\_csstring#1}[#2]}}%
+   \_sdef{_oA:\_csstring#1}[##1]{%
+      \_immediateassignment\_opt={##1}\_cs{_oB:\_csstring#1\_nospaceafter}}%
    \_sdef{_oB:\_csstring#1\_nospaceafter}%
 }
 \_def\_nospaceafter#1{\_ea#1\_romannumeral-`\.\_noexpand}
@@ -130,12 +131,21 @@
 \_public \opt \optdef \nospaceafter \nospacefuturelet ;
 
    \_doc -----------------------------
+   \`\_noprefix` `<cs>` works like `\csstring` `<cs>`, but ignores not only
+   the first backlash but the second~\"`_`" ignores too (if it follows the
+   backslash).
+   \_cod -----------------------------
+
+\_def\_noprefix#1{\_ea\_noprefixA \_csstring#1\_empty\_fin}
+\_def\_noprefixA #1#2\_fin{\_if _#1\_else #1\_fi #2}
+
+   \_doc -----------------------------
    The declarator \`\eoldef``\macro #1{<replacement text>}` defines a `\macro`
    which scans its parameter to the end of the current line.
    This is the parameter `#1` which can be used in the `<replacement text>`.
    The catcode of the `\endlinechar` is reset temporarily when the parameter is scanned. 
 
-   The macro defined by `\eoldef` cannot be used with its parameter inside
+   The macro defined by \^`\eoldef` cannot be used with its parameter inside
    other macros because the catcode dancing is not possible here. But the
    \`\bracedparam``\macro{<parameter>}` can be used here. The `\bracedparam`
    is a prefix that re-sets temporarily the `\macro` to a `\macro` with
@@ -146,15 +156,16 @@
    \_cod -----------------------------
 
 \_def\_eoldef #1{\_def #1{\_begingroup \_catcode`\^^M=12 \_eoldefA #1}%
-   \_ea\_def\_csname _\_csstring #1:M\_endcsname}
+   \_ea\_def\_csname _eol:\_noprefix #1\_endcsname}
 \_catcode`\^^M=12 %
-\_def\_eoldefA #1#2^^M{\_endgroup\_csname _\_csstring #1:M\_endcsname{#2}}%
+\_def\_eoldefA #1#2^^M{\_endgroup\_csname _eol:\_noprefix #1\_endcsname{#2}}%
 \_normalcatcodes %
 
 \_eoldef\_skiptoeol#1{}
-\_def\_bracedparam#1{\_ifcsname _\_csstring #1:M\_endcsname
-    \_csname _\_csstring #1:M\_ea \_endcsname
-    \_else \_csname _in\_csstring #1\_ea \_endcsname \_fi
+
+\_def\_bracedparam#1{%
+   \_trycs{_eol:\_noprefix#1}%
+      {\_errmessage{\_string\bracedparam: \_string#1 isn't defined by \_string\eoldef}}%
 }
 \_public \eoldef \skiptoeol \bracedparam ;
 
@@ -270,7 +281,8 @@
    \endtt
    You can use expandable \`\expr``{<expression>}` for analogical purposes.
    It expands to the value of the `<expression>` at expand processor level.
-   The `<expression>` can include `+-*/()` and decimal numbers in common syntax.
+   The `<expression>` can include `+-*/^()` and decimal numbers in common syntax.
+   Moreover, `a//b` means integer division and `a\%b` is remainder.
    The math functions (and pi constant) have to be prefixed by `math.`,
    because it is processed by Lua interpreter. For
    example `\expr{math.pi*math.sqrt(2)}`.
@@ -298,6 +310,21 @@
 
 \_public \expr \bp ;
 
+   \_doc -----------------------------
+   The \^`\expr` and \^`\bp` macros return their results with given number of decimal
+   digits even if there are trailing zeros. There is the \^`\nnum` macro to
+   \"normalize" such decimal numbers. \`\nnum``{<number>}` expands its parameter
+   and removes trailing zeros after decimal point and removes the decimal point
+   if nothing follows. For example, use `\nnum{\expr[10]{<expression>}}`.
+   The `\nnum` macro is fully expandable.
+   \_cod -----------------------------
+
+\_def\_nnum #1{\_ea\_nnumA\_expanded{#1}.\_fin}
+\_def\_nnumA #1.#2\_fin{#1\_ifx~#2~\_else \_nnumB #20.\_fin \_fi}
+\_def\_nnumB #10.#2\_fin{\_ifx~#2~\_nnumC#1\_else \_nnumB #1.0.\_fin \_fi}
+\_def\_nnumC #1.{\_ifx~#1~\_else .#1\_fi}
+\_public \nnum ;
+
    \_doc ------------------
    You can write \^`\setpos``[<label>]` somewhere and the position of such
    \^`\setpos``[<label>]` can be referenced by \^`\posx``[<label>]`,
@@ -374,6 +401,9 @@
 
 \_endcode % -------------------------------------
 
+2024-02-10 \optdef reimplemented, it can create expandable macros now.
+2024-01-18 \bracedparam reimplemented.
+2023-12-04 \nnum introduced
 2023-01-18 \bp, \expr have optional syntax for setting dec-digits
 2022-11-24 \setpos, \posx, \posy moved from OpTeX trick here
 2022-11-22 \docgen writes banner to log
diff --git a/Master/texmf-dist/tex/optex/base/optex-tricks.opm b/Master/texmf-dist/tex/optex/base/optex-tricks.opm
index 89fc7dd5e74..456a7472e1c 100644
--- a/Master/texmf-dist/tex/optex/base/optex-tricks.opm
+++ b/Master/texmf-dist/tex/optex/base/optex-tricks.opm
@@ -1,6 +1,6 @@
 %% This is part of the OpTeX project, see http://petr.olsak.net/optex
 
-\_codedecl \_undefined {OpTeX tricks ready to autoload <2023-11-15>} % chunks loaded on demand
+\_codedecl \_undefined {OpTeX tricks ready to autoload <2024-02-13>} % chunks loaded on demand
 
 % Selected OpTeX tricks are here, they are auto-loaded if the macro is used first
 % namespace: optextrick
@@ -97,13 +97,14 @@
 \_trick 105 \directoutput ;
 %%%%%%%%%%%
 
-\_def\directoutput{\_begingroup \_afterassignment\.directoutputA \_setbox0=}
+\_newbox\.outbox
+\_def\directoutput{\_begingroup \_afterassignment\.directoutputA \_setbox\.outbox=}
 \_def\.directoutputA{\_aftergroup \.directoutputB}
-\_def\.directoutputB{\_preshipout0\_box0
-   \_pdfpageheight=\_dimexpr\_ht0+\_dp0+2\_vvkern \_relax
-   \_pdfpagewidth=\_dimexpr\_wd0+2\_hhkern\_relax
+\_def\.directoutputB{\_preshipout\.outbox\_box\.outbox
+   \_pdfpageheight=\_dimexpr\_ht\.outbox+\_dp\.outbox+2\_vvkern \_relax
+   \_pdfpagewidth=\_dimexpr\_wd\.outbox+2\_hhkern\_relax
    \_hoffset=\_hhkern \_voffset=\_vvkern
-   \_shipout\_box0
+   \_shipout\_box\.outbox
    \_incr\_pageno
    \_endgroup
 }
@@ -735,12 +736,47 @@
       +\_topskip \_relax
 }
 
+\_trick 0129 \pgforeground ;
+%%%%%%%%%%%%
+
+\_newtoks \pgforeground
+
+\_addto\_makefootline{
+   \_istoksempty\pgforeground \_iffalse
+      \_vskip-\_prevdepth
+      \_vskip-\_vsize
+      \_vskip-\_voffset
+      \_istoksempty\_footline \_iffalse \_vskip-\_footlinedist \_fi
+      \_nointerlineskip
+      \_moveleft\_hoffset \_vbox{\_the\pgforeground}
+   \_fi
+}
+
+\_trick 0130 \onlyifnew ;
+%%%%%%%%%%%%
+
+\_def \onlyifnew#1#2{\_begingroup%
+   \_edef\.tmpA{\_csstring #2}%
+   \_edef\.tmpB{\_string #2}%
+   \_ea\_ifcsname\.tmpA\_endcsname%
+   \_ifx\.tmpA\.tmpB% #2 has no backslash
+   \_def\.onlyifnewA{#1{_optextrick_onlyifnewB}}\_else%
+   \_def\.onlyifnewA{#1\_optextrick_onlyifnewB}\_fi%
+   \_else%
+   \_ifx\.tmpA\.tmpB%
+   \_def\.onlyifnewA{#1{#2}}\_else%
+   \_def\.onlyifnewA{#1#2}\_fi%
+   \_fi\_ea\_endgroup\.onlyifnewA}
+
+%%%%%%%%%%%%
 \_trick end ;
 
 \_endcode
 
+2024-02-13 \onlyifnew added
+2024-02-12 \pgforeground added
 2023-11-15 \correctvsize added
-2023-11-09 \makeLOF, \makeLOT aded
+2023-11-09 \makeLOF, \makeLOT added
 2023-11-08 \ispageodd, \seccc added
 2023-11-07 \settabs \import \incrpp added
 2023-11-05 \twoblocks, \pstart added
diff --git a/Master/texmf-dist/tex/optex/base/optex.ini b/Master/texmf-dist/tex/optex/base/optex.ini
index b65832faf84..a659f43dc8b 100644
--- a/Master/texmf-dist/tex/optex/base/optex.ini
+++ b/Master/texmf-dist/tex/optex/base/optex.ini
@@ -21,7 +21,7 @@
 
 % OpTeX version
 
-\def\optexversion{1.13 Nov 2023}
+\def\optexversion{1.14 Feb 2024}
 \def\fmtname{OpTeX}
 \let\fmtversion=\optexversion
 
diff --git a/Master/texmf-dist/tex/optex/base/others.opm b/Master/texmf-dist/tex/optex/base/others.opm
index 9926c98fef4..9b7e3a7ead8 100644
--- a/Master/texmf-dist/tex/optex/base/others.opm
+++ b/Master/texmf-dist/tex/optex/base/others.opm
@@ -1,6 +1,6 @@
 %% This is part of the OpTeX project, see http://petr.olsak.net/optex
 
-\_codedecl \uv {Miscenaleous <2023-10-17>} % preloaded in format
+\_codedecl \uv {Miscenaleous <2023-12-23>} % preloaded in format
 
     \_doc ----------------------------
     \`\useOpTeX` and \`\useoptex` are declared as `\relax`.
@@ -105,13 +105,14 @@
     first sentence from the paragraph <number> using \`\_lipsumdot`.
     \_cod ----------------------------
 
+\_newbox\_nonebox
 \_def\_lipsumtext[#1]{\_lipsumload\_cs{_lip:#1}}
 \_def\_lipsum[#1]{\_lipsumA #1.]{#1}}
 \_def\_lipsumA #1.#2]#3{\_ifx^#2^\_lipsumB #1\_empty-\_empty\_fin \_else \_lipsumdot[#1].\_fi}
 \_def\_lipsumB #1-#2\_empty#3\_fin{%
    \_fornum #1..\_ifx^#2^#1\_else#2\_fi \_do {\_lipsumtext[##1]\_par}}
 \_def\_lipsumload{{%
-   \_setbox0=\_vbox{\_tmpnum=0 % vertical mode during \input lipsum.ltd.tex
+   \_setbox\_nonebox=\_vbox{\_tmpnum=0 % vertical mode during \input lipsum.ltd.tex
       \_def\ProvidesFile##1[##2]{}%
       \_def\SetLipsumLanguage##1{}%
       \_def\NewLipsumPar{\_incr\_tmpnum \_sxdef{_lip:\_the\_tmpnum}}%
@@ -149,7 +150,7 @@
    \_savecatcodetable\_tmpcatcodes \_catcodetable\_tmpcatcodes
    \_long\_def\_loadtrickA ##1\_trick##2#1##3;{##1}%
    \_wlog{Loading trick macros for \_string#1}%
-   \_setbox0=\_vbox{\_globaldefs=1 \_ea\_loadtrickA \_input {optex-tricks.opm}}%
+   \_setbox\_nonebox=\_vbox{\_globaldefs=1 \_ea\_loadtrickA \_input {optex-tricks.opm}}%
    \_restorectable \_endnamespace
 }
 \_def\_trick #1;{\_endinput}
@@ -161,7 +162,8 @@
    \shadedframe \roundframe \cancel \ignoreinspic \keystroke
    \colortab \crx \crtop \crbot \crmid \longtable \vcent \vbot \tnote \tabnodes \tablebefore
    \framedblocks \twoblocks \pstart \settabs \import \incrpp \ispageodd
-   \iniseccc \seccc \makeLOF \makeLOT \captionF \captionT \correctvsize ;
+   \iniseccc \seccc \makeLOF \makeLOT \captionF \captionT \correctvsize \pgforeground
+   \onlyifnew  ;
 \_sdef{_item:m}{\_loadtrick{\style m}\_cs{_item:m}}
 
    \_doc -----------------------------
@@ -238,6 +240,7 @@
 
 \_endcode
 
+2023-12-23 \_nonebox instead box 0 introduced.
 2023-10-17 \_loadtrick introduced.
 2022-05-04 \lipsum[<num>]. changed to \lipsum[<num>.] to keep macro expandable.
 2022-04-21 syntax \lipsum[<num>]. introduced.
diff --git a/Master/texmf-dist/tex/optex/base/parameters.opm b/Master/texmf-dist/tex/optex/base/parameters.opm
index f831fa6a2df..05abe422757 100644
--- a/Master/texmf-dist/tex/optex/base/parameters.opm
+++ b/Master/texmf-dist/tex/optex/base/parameters.opm
@@ -144,12 +144,12 @@
 \_voffset=25mm
 \_hsize=160mm    % 210mm (from A4 size) - 2*25mm (default margins)
 \_vsize=244mm    % 297mm (from A4 size) - 2*25mm (default margins) -3mm baseline correction
-\_pagewidth=210 true mm
-\_pageheight=297 true mm
+\_pdfpagewidth=210 true mm
+\_pdfpageheight=297 true mm
 
    \_doc -----------------------------
    If you insist on plain \TeX/ values of these parameters then you can
-   call the `\plaintexsetting` macro.
+   call the \`\plaintexsetting` macro.
    \_cod -----------------------------
 
 \_def\_plaintexsetting{%
@@ -162,8 +162,8 @@
    \_voffset=0pt
    \_hsize=6.5in
    \_vsize=8.9in
-   \_pagewidth=8.5 true in
-   \_pageheight=11 true in
+   \_pdfpagewidth=8.5 true in
+   \_pdfpageheight=11 true in
    \_nonfrenchspacing
 }
 \_public \plaintexsetting ;
diff --git a/Master/texmf-dist/tex/optex/base/plain-macros.opm b/Master/texmf-dist/tex/optex/base/plain-macros.opm
index 6ae59108b50..f3aa8c53347 100644
--- a/Master/texmf-dist/tex/optex/base/plain-macros.opm
+++ b/Master/texmf-dist/tex/optex/base/plain-macros.opm
@@ -8,6 +8,8 @@
    \begtt
    \addto \dospecials{\do\_}
    \endtt
+   \`\active` is character constant 13, we can use it in the context
+   \code{\\catcode`}<character>\code{=\\active}.
    \_cod -----------------------------
 
 \_def\_dospecials {\do\ \do\\\do\{\do\}\do\$\do\&%
@@ -138,6 +140,7 @@
    \_doc -----------------------------
    The \`\strutbox` is declared as 10pt size dependent (like in plain \TeX), but
    the macro `\_setbaselineskip` (from `fonts-opmac.opm`) redefines it.
+   The `\strut` macro puts the \^`\strutbox`.
    \_cod -----------------------------
 
 \_newbox\_strutbox
@@ -162,8 +165,8 @@
    \_doc -----------------------------
    Tabbing macros are omitted because they are obsolete.
    \nl
-   Indentation and others. \`\textindent`, \`\item`, \`\itemitem`,
-   \`\narrower`, \`\raggedright`, \`\ttraggedright`, \`\leavevmode`.
+   Indentation and similar macros are defined here: \`\hang`, \`\textindent`,
+   \`\item`, \`\itemitem`, \`\narrower`, \`\raggedright`, \`\ttraggedright`, \`\leavevmode`.
    \_cod -----------------------------
 
 \_def \_hang {\_hangindent\_parindent}
@@ -181,7 +184,7 @@
 
    \_doc -----------------------------
    Few character codes are set for backward compatibility. But old obscurities
-   (from plain TeX) based on \`\mathhexbox`
+   (from plain \TeX) based on \`\mathhexbox`
    are not supported -- an error message and recommendation
    to directly using the desired character is implemented by the
    \`\_usedirectly` macro).
@@ -219,7 +222,7 @@
 \_public \mathhexbox ;
 
    \_doc -----------------------------
-   The \`\_unichars` macro is run in \~`\initunifonts`,
+   The \`\_unichars` macro is run when Unicode font family is loaded,
    Unicodes are used instead old plain \TeX/ settings.
    \_cod -----------------------------
 
@@ -263,6 +266,9 @@
    macro \`\oldaccents` which defines accented macros.
    \nl
    Much more usable is to define these control sequences for other purposes.
+   \nl
+   The \`\_uniaccents` macro redeclares codes for accents and it is run when
+   Unicode font family is loaded.
    \_cod -----------------------------
 
 \_def \_oldaccents {%
@@ -342,7 +348,7 @@
    \rightarrowfill \leftarrowfill \downbracefill \upbracefill ;
 
    \_doc -----------------------------
-   The last part of plain \TeX/ macros: \`\magnification`, \`\bye`.
+   The last part of plain \TeX/ macros: \`\magnification`, \`\showhyphens`, \`\bye`.
    Note that math macros are defined in the `math-macros.opm` file
    (section~\ref[math-macros]).
    \_cod -----------------------------
@@ -361,7 +367,7 @@
 \_public \showhyphens \bye ;
 
    \_doc -----------------------------
-   Plain \TeX/ reads `hyphen.tex` with patterns as `\language=0`. We do the same.
+   Plain \TeX/ reads `hyphen.tex` with patterns when \^`\language``=0`. We do the same.
    \_cod -----------------------------
 
 \_lefthyphenmin=2 \_righthyphenmin=3 % disallow x- or -xx breaks
diff --git a/Master/texmf-dist/tex/optex/base/prefixed.opm b/Master/texmf-dist/tex/optex/base/prefixed.opm
index 3d25b0c8949..89aa0b4966a 100644
--- a/Master/texmf-dist/tex/optex/base/prefixed.opm
+++ b/Master/texmf-dist/tex/optex/base/prefixed.opm
@@ -1,6 +1,6 @@
 %% This is part of the OpTeX project, see http://petr.olsak.net/optex
 
-\_codedecl \public {Prefixing and code syntax <2022-11-25>} % preloaded in format
+\_codedecl \public {Prefixing and code syntax <2024-02-02>} % preloaded in format
 
    \_doc ---------
    All \TeX/ primitives have alternative control sequence `\_hbox` `\_string`, ...
@@ -97,6 +97,8 @@
 \_def \_nspublic {\_xargs \_nspublicA}
 \_def \_nspublicA #1{%
    \_checkexists \_nspublic {\_pkglabel _\_csstring #1}%
+   \_ifcsname _eol:\_ea\_ignoreit\_pkglabel _\_csstring #1\_endcsname % defined by \eoldef
+      \_slet {_eol:\_csstring #1}{_eol:\_ea\_ignoreit\_pkglabel _\_csstring #1}\_fi
    \_ea\_newpublic \_ea\_let \_ea#1\_csname \_pkglabel _\_csstring #1\_endcsname
 }
 \_def \_nsprivate {\_xargs \_nsprivateA}
@@ -388,6 +390,8 @@ can look like. Another good and short example is
 
 \endinput
 
+2024-02-02 \_nspublicA bug correction (#1 may be set as \outer)
+2024-01-18 \_nspublic modified in order to \eoldef+\bracedparam
 2023-01-30 doc. about namespaces rewritten
 2022-11-25 \_resetnamespace: moved \gdef\_namesp:#1 {} to \_namespace
 2022-11-24 \newpublic introduced, \_checkexists with only two parameters.
diff --git a/Master/texmf-dist/tex/optex/base/sections.opm b/Master/texmf-dist/tex/optex/base/sections.opm
index ef5958e7888..de647475efd 100644
--- a/Master/texmf-dist/tex/optex/base/sections.opm
+++ b/Master/texmf-dist/tex/optex/base/sections.opm
@@ -1,6 +1,6 @@
 %% This is part of the OpTeX project, see http://petr.olsak.net/optex
 
-\_codedecl \chap {Titles, chapters, sections, subsections <2023-05-02>} % preloaded in format
+\_codedecl \chap {Titles, chapters, sections, subsections <2024-01-19>} % preloaded in format
 
    \_doc ---------------------------
    We are using scaled fonts for titles
@@ -28,7 +28,7 @@
    \_nobreak\_bigskip
 }
 \_def\_tit{\_scantoeol\_printtit}
-\_let\_intit=\_printtit  % used by \bracedparam
+\_sdef{_eol:tit}{\_printtit} % enables \bracedparam\tit{title}
 
 \_public \tit ;
 
@@ -156,7 +156,7 @@
 
    \_doc ----------------------------
    The \`\notoc` and \`\nonum` prefixes are implemented by
-   internal `\_ifnotoc` and `\_ifnonum`. They are reset
+   internal \`\_ifnotoc` and \`\_ifnonum`. They are reset
    after each chapter/section/subsection by the \`\_resetnonumnotoc` macro.
    \_cod ----------------------------
 
@@ -179,6 +179,10 @@
 \_optdef\_secc[]{\_trylabel \_scantoeol\_insecc}
 \_def\_trylabel{\_istoksempty\_opt\_iffalse \_label[\_the\_opt]\_fi}
 
+\_sdef{_eol:chap}{\_inchap} % enebles \bracedparam\chap{title}
+\_sdef{_eol:sec}{\_insec}   % enables \bracedparam\sec{title}
+\_sdef{_eol:secc}{\_insecc} % enables \bracedparam\secc{title}
+
 \_def\_inchap #1{\_par \_sectionlevel=1
    \_def \_savedtitle {#1}% saved to .ref file
    \_ifnonum \_else {\_globaldefs=1 \_incr\_chapnum \_chapx}\_fi
@@ -317,12 +321,14 @@
    `\secl3` is `\secc` and all more levels (for <number>$>3$)
    are printed by the common \`\_seclp` macro. It declares only a simple design.
    If there is a requirement to use such more levels then the book designer can
-   define something different here.
+   define something different here.\nl
+   The variant `\_eol:secl` is defined to enable \^`\bracedparam``\secl<number> {<title-text>}`.
    \_cod -----------------------------
 
-\_def\_secl{\_afterassignment\_secla \_sectionlevel=}
+\_def\_secl{\_let\_secle=\_ea \_afterassignment\_secla \_sectionlevel=}
+\_sdef{_eol:secl}{\_def\_secle{\_ea\_bracedparam\_ea}\_afterassignment\_secla \_sectionlevel=}
 \_def\_secla{\_ifcase\_sectionlevel
-   \_or\_ea\_chap\_or\_ea\_sec\_or\_ea\_secc\_else\_ea\_seclp\_fi}
+   \_or \_secle\_chap \_or \_secle\_sec \_or \_secle\_secc \_else \_ea \_seclp\_fi}
 \_eoldef\_seclp#1{\_par \_ifnum\_lastpenalty=0 \_removelastskip\_medskip\_fi
    \_noindent{\_bf #1}\_vadjust{\_nobreak}\_nl\_ignorepars}
 \_def\_ignorepars{\_isnextchar\_par{\_ignoresecond\_ignorepars}{}}
@@ -473,6 +479,8 @@
 
 \_endcode % -------------------------------------
 
+2024-01-19 \bracedparam\secl enalbed
+2024-01-18 \tit, \chap, \sec, \secc: added cooperation with new \bracedparam
 2023-05-02 \_numprint used
 2022-10-19 More robust \caption (two opened groups, \_printcaption introduced)
 2022-08-02 Penalties in \_printsec, \_printsecc changed
diff --git a/Master/texmf-dist/tex/optex/base/unimath-codes.opm b/Master/texmf-dist/tex/optex/base/unimath-codes.opm
index 66be7487d4d..d2b7e0e1e31 100644
--- a/Master/texmf-dist/tex/optex/base/unimath-codes.opm
+++ b/Master/texmf-dist/tex/optex/base/unimath-codes.opm
@@ -198,7 +198,8 @@
 }
 
    \_doc -----------------------------
-   The  math alphabets \`\cal`, \`\bbchar`, \`\frak`, \`\script` are re-defined
+   The  math alphabets \`\cal`, \`\bbchar`, \`\frak`, \`\script`,
+   \`\misans`, \`\mbisans` are re-defined
    here. The \`\_marm`, \`\_mabf`, \`\_mait`, \`\_mabi`, \`\_matt`
    used in \^`\rm`, \^`\bf`, \^`\it`, \^`\bi` are re-defined too.\nl
    You can redefine them again if you need different behavior (for example
@@ -548,7 +549,7 @@
 \secc More Unicode-math examples
 
 Example of using additional math font is in section 5.3 in the
-\ulink[http://petr.olsak.net/ftp/olsak/optex/optex-math.pdf]{\tt optex-math.pdf} documentation
+\ulink[http://petr.olsak.net/ftp/olsak/optex/optex-math.pdf]{\tt optex-math.pdf} documentation.
 More examples are in the
 \ulink[http://petr.olsak.net/optex/optex-tricks.html]{OpTeX tricks} and in the
 \ulink[https://petr.olsak.net/ftp/olsak/optex/math-doc.pdf]{math.opm} package.
diff --git a/Master/texmf-dist/tex/optex/base/unimath-macros.opm b/Master/texmf-dist/tex/optex/base/unimath-macros.opm
index 35842e674d2..ac926b5e89e 100644
--- a/Master/texmf-dist/tex/optex/base/unimath-macros.opm
+++ b/Master/texmf-dist/tex/optex/base/unimath-macros.opm
@@ -181,7 +181,9 @@
    \`\themathcodefam``<math-char>` and \`\themathcodechar``<math-char>` macros.
    The parameter <math-char> is a math character or it is a macro like `\doteq`, `\times`.
    Moreower, \`\thedelcodefam``<math-char>` and \`\thedelcodechar``<math-char>`
-   return delcode quaitities of givem math character.
+   return delcode quaitities of given math character.
+   All these commands use the common Lua code defined in
+   the \`\_getmathcode``<code>{<math or del>}<character number>` macro.
    \_cod -----------------------------
 
 \_def\_getmathcode#1#2{\_directlua{tex.print(tex.get#2code(token.scan_int())[#1])}}
diff --git a/Master/texmf-dist/tex/optex/demo/op-mathalign.tex b/Master/texmf-dist/tex/optex/demo/op-mathalign.tex
index b2524ee80da..7770a8d0e21 100644
--- a/Master/texmf-dist/tex/optex/demo/op-mathalign.tex
+++ b/Master/texmf-dist/tex/optex/demo/op-mathalign.tex
@@ -44,7 +44,7 @@
 \tit Math alignment examples
 
 The document \url{https://www.ntg.nl/maps/34/06.pdf} shows examples how to
-do special math alignments in display mode in ConTeXt (and in \LaTeX/ for
+do special math alignments in display mode in \ConTeXt/ (and in \LaTeX/ for
 comparison). We present the same examples here. They are created in
 \OpTeX/ and the \LaTeX/ source is shown for comparison.
 
diff --git a/Master/texmf-dist/tex/optex/pkg/mte.opm b/Master/texmf-dist/tex/optex/pkg/mte.opm
index 0c8b22152a4..5352d5dd782 100644
--- a/Master/texmf-dist/tex/optex/pkg/mte.opm
+++ b/Master/texmf-dist/tex/optex/pkg/mte.opm
@@ -658,7 +658,7 @@ You can define your own protrusion or expansion values: copy macros
 as you wish using `\def`. Such definition has precedence.
 Similar definitions can be in some font family files too, so: do your
 definition after all `\fontfam` if you want to keep the precedence.
-All such definitions must be performed before the `\mteinit` command.
+All such definitions must be performed before the \^`\enablemte` command.
 
 You can use `\def\_mte_P` for data of protrusion for all fonts
 which has general precedence. For example, if you want to protrude hyphen