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diff --git a/tex/context/base/mkiv/anch-bar.mkxl b/tex/context/base/mkiv/anch-bar.mkxl
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-%D \module
-%D   [       file=anch-bar,
-%D        version=2003.03.16,
-%D          title=\CONTEXT\ Anchoring Macros,
-%D       subtitle=Margin Bars and alike,
-%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 Anchoring Macros / Margin Bars}
-
-\unprotect
-
-%D This can be done better now ...
-
-%D We will implement a sidebar mechanism using the functionality from
-%D \type {core-pos}.
-%D
-%D \starttyping
-%D \definesidebar[whow][rulecolor=green,distance=0pt]
-%D
-%D \input tufte \par
-%D \startsidebar
-%D   \input tufte \par
-%D   \input tufte \par
-%D   \startsidebar[whow]
-%D     \input tufte \par
-%D     \input tufte \par
-%D     \input tufte
-%D   \stopsidebar \par
-%D   \input tufte \par
-%D   \input tufte
-%D \stopsidebar \par
-%D \input tufte \par
-%D \input tufte \par
-%D \startsidebar
-%D   \input tufte \par
-%D   \input tufte \par
-%D   \input tufte \par
-%D   \input tufte \par
-%D   \input tufte
-%D \stopsidebar \par
-%D \input tufte \par
-%D \input tufte \par
-%D \startsidebar
-%D   \input tufte
-%D   \input tufte
-%D   \input tufte
-%D   \input tufte
-%D   \input tufte
-%D \stopsidebar
-%D \stoptyping
-
-\installcorenamespace{sidebar}
-
-\installcommandhandler \??sidebar {sidebar} \??sidebar
-
-\newcount\c_anch_sidebars_n
-\newcount\c_anch_sidebars_current % local
-\newdimen\d_anch_sidebars_distance
-\newcount\c_anch_sidebars_level
-
-% \setupMPvariables
-%   [mpos:sidebar]
-%   [linecolor=red,
-%    linewidth=2pt,
-%    distance=5pt]
-
-\setupsidebar
-  [\c!rulethickness=\dimexpr\bodyfontsize/6\relax, % 2pt default
-   \c!rulecolor=\s!black,
-   \c!alternative=0,
-   \c!topoffset=\zeropoint,
-   \c!bottomoffset=\zeropoint,
-   \c!distance=.5\bodyfontsize,
-   \c!level=,
-   \c!leftmargindistance=\zeropoint]
-
-\aliased\let\setupsidebars\setupsidebar
-
-\permanent\tolerant\protected\def\startsidebar[#1]#*[#2]%
-  {\bgroup
-   \dontleavehmode
-   \advance\c_anch_sidebars_level\plusone
-   \global\advance\c_anch_sidebars_n\plusone
-   \c_anch_sidebars_current\c_anch_sidebars_n\relax % relax needed
-   \ifhastok={#1}%
-     \edef\currentsidebar{\the\c_anch_sidebars_level}%
-     \checksidebarparent
-     \setupcurrentsidebar[#1]%
-   \else
-     \def\currentsidebar{#1}%
-     \setupcurrentsidebar[#2]%
-   \fi
-   \scratchdistance\sidebarparameter\c!distance\relax
-   \scratchdimen\sidebarparameter\c!leftmargindistance\relax
-   \edef\m_level{\sidebarparameter\c!level}%
-   \ifempty\m_level
-     \ifnum\c_anch_sidebars_level=\plusone
-       \ifzeropt\scratchdimen
-         \advance\d_anch_sidebars_distance\scratchdistance\relax
-       \else
-         \d_anch_sidebars_distance\scratchdimen
-       \fi
-     \else
-       \advance\d_anch_sidebars_distance\scratchdistance\relax
-     \fi
-   \else
-     \ifnum\m_level=\plusone
-       \ifzeropt\scratchdimen
-         \advance\d_anch_sidebars_distance\scratchdistance\relax
-       \else
-         \d_anch_sidebars_distance\scratchdimen
-       \fi
-     \else
-       \d_anch_sidebars_distance\dimexpr\scratchdimen+\numexpr\m_level-\plusone\relax\dimexpr\scratchdistance\relax\relax
-     \fi
-   \fi
-   \startpositionoverlay{\v!text-1}%
-     \normalexpanded{\setMPpositiongraphicrange % maybe expand in definition
-       {b:sidebar:\the\c_anch_sidebars_n}%
-       {e:sidebar:\the\c_anch_sidebars_n}%
-       {mpos:sidebar}%
-       {self=sidebar:\the\c_anch_sidebars_n,
-        linewidth=\sidebarparameter\c!rulethickness,
-        linecolor=\sidebarparameter\c!rulecolor,
-        alternative=\sidebarparameter\c!alternative,
-        topoffset=\the\dimexpr\sidebarparameter\c!topoffset,
-        bottomoffset=\the\dimexpr\sidebarparameter\c!bottomoffset,
-        distance=\the\d_anch_sidebars_distance}%
-     }%
-   \stoppositionoverlay
-   \bpos{sidebar:\the\c_anch_sidebars_current}%
-   \ignorespaces}
-
-\permanent\protected\def\stopsidebar
-  {\removelastspace
-   \epos{sidebar:\the\c_anch_sidebars_current}
-   \carryoverpar\egroup}
-
-%D Let's keep this nice and simple (okay, we could pass the 6 variables in
-%D one lua call).
-
-\startMPpositionmethod{mpos:sidebar}
-    \startMPpositiongraphic{mpos:sidebar}{linecolor,linewidth,distance,alternative}%
-        anch_sidebars_draw (
-            \MPp\MPbself,\MPp\MPeself,\MPy\MPbself,\MPy\MPeself,\MPh\MPbself,\MPd\MPeself,
-            \MPx{\textanchor},\MPy{\textanchor},\MPw{\textanchor},\MPh{\textanchor},
-            \MPvar{alternative},\MPvar{distance},\MPvar{linewidth},\MPvar{linecolor},
-            \MPvar{topoffset}, \MPvar{bottomoffset}
-        ) ;
-    \stopMPpositiongraphic
-    \MPpositiongraphic{mpos:sidebar}{}%
-\stopMPpositionmethod
-
-%D We now reimplement the \MKII\ margin rules handler in a more
-%D modern way.
-%D
-%D \setupmarginrules
-%D   [rulecolor=darkred,
-%D    rulethickness=2pt]
-%D
-%D \setupmarginrules % sidebar
-%D   [2]
-%D   [rulecolor=darkblue]
-%D
-%D \startmarginrule[1]
-%D     \input ward
-%D     \startmarginrule[2]
-%D         \input ward
-%D         \startmarginrule[3]
-%D             \input ward
-%D             \startmarginrule[level=6,rulecolor=darkgreen]
-%D                 \input ward
-%D             \stopmarginrule
-%D             \input ward
-%D         \stopmarginrule
-%D         \input ward
-%D     \stopmarginrule
-%D     \input ward
-%D \stopmarginrule
-%D
-%D Compared to the old mechanism we now can pass settings too.
-
-\definesidebar
-  [\v!margin]
-  [\c!leftmargindistance=\dimexpr\leftmargindistance+\sidebarparameter\c!rulethickness/2\relax]
-
-\dorecurse{5}{\definesidebar[\v!margin:#1][\v!margin]} % let's be nice and predefine 5 levels
-
-\permanent\tolerant\protected\def\setupmarginrule[#1]#*[#2]%
-  {\ifarguments\or
-     \setupsidebar[\v!margin][#1]%
-   \or
-     \setupsidebar[\v!margin:#1][#2]%
-   \fi}
-
-\aliased\let\setupmarginrules\setupmarginrule
-
-\permanent\tolerant\protected\def\startmarginrule[#1]% pretty inefficient checking
-  {\edef\m_anch_marginrules_kind{#1}%
-   \ifempty\m_anch_marginrules_kind
-     \startsidebar[\v!margin][]%
-   \orelse\ifhastok={\m_anch_marginrules_kind}%
-     \startsidebar[\v!margin][#1]%
-   \else
-     \anch_marginrules_check{#1}%
-     \startsidebar[\v!margin:#1][\c!level=#1]%
-   \fi}
-
-\def\anch_marginrules_check#1%
-  {\doifnotcommandhandler\??sidebar{\v!margin:#1}{\definesidebar[\v!margin:#1][\v!margin]}}
-
-\aliased\let\stopmarginrule\stopsidebar
-
-\protect \endinput