78.15 Spacing

<..context core-spa..>
 \append:def\crlf{\ifhmode \a:crlf\fi}
 \NewConfigure{crlf}{1}
 -_-_-

<..context core-spa..>+
 \def\:tempc[#1]{%
    \o:complexstartsmaller:[#1]%
    \a:narrower\bgroup\aftergroup\b:narrower\aftergroup\egroup}
 \HLet\complexstartsmaller\:tempc
 \NewConfigure{narrower}{2}
 -_-_-

<..context core-spa..>+
 \def\:tempc#1#2{%
    \o:doalignline:{<.open doalign.>}{<.close doalign.>}}
 \HLet\doalignline\:tempc
 \NewConfigure{midaligned}{2}
 \NewConfigure{leftaligned}{2}
 \NewConfigure{rightaligned}{2}
 -_-_-

<..open doalign..>
 \ifx #1\hss
   \ifx #2\hss\a:midaligned
   \else      \a:rightaligned
   \fi
 \else        \a:leftaligned
 \fi
 -_-_-

<..close doalign..>
 \ifx #1\hss
   \ifx #2\hss\b:midaligned
   \else      \b:rightaligned
   \fi
 \else        \b:leftaligned
 \fi
 \hss
 -_-_-

<..context core-spa..>+
 \def\:tempc#1{%
    \def\last:Attributes{#1}%
    \ifx \last:Attributes\empty
    \else
       <.do at start attributes.>%
       \let\last:Attributes=\empty
    \fi
    \o:dostartattributes:{#1}
   }
 \HLet\dostartattributes\:tempc
 -_-_-

<..do at start attributes..>
 \get:curName\??be          \ifx \cur:Name\empty
    \get:curName\??li       \ifx \cur:Name\empty
       \get:curName\??ly    \ifx \cur:Name\empty
          \get:curName\??ko \ifx \cur:Name\empty
             <.another context env.>%
          \else
             <.context sec title env.>%
          \fi
       \else
          <.context layout env.>%
       \fi
    \else
       <.context list element.>%
    \fi
 \else
    <.start stop env.>%
 \fi
 -_-_-

<..context core-sys..>+
 \NewConfigure{layout}{2}
 -_-_-

<..context layout env..>
 \edef\cur:Name{\cur:Name -ly}%
 \verify:config\cur:Name{layout}%
 \csname a:\cur:Name\endcsname
 \def\:tempc{\o:@@nostopattributes: \csname b:\cur:Name\endcsname}%
 \HLet\@@nostopattributes\:tempc
 \def\:tempc{\o:@@dostopattributes: \csname b:\cur:Name\endcsname}%
 \HLet\@@dostopattributes\:tempc
 -_-_-

<..context core-sys..>+
 \NewConfigure{context-attr}{2}
 -_-_-

<..another context env..>
 \edef\cur:Name{\cur:Name -\last:Attributes}%
 \verify:config\cur:Name{context-attr}%
 \csname a:\cur:Name\endcsname
 \def\:tempc{\o:@@nostopattributes: \csname b:\cur:Name\endcsname}%
 \HLet\@@nostopattributes\:tempc
 \def\:tempc{\o:@@dostopattributes: \csname b:\cur:Name\endcsname}%
 \HLet\@@dostopattributes\:tempc
 -_-_-

<..context core-spa..>+
 \def\:tempc[#1]{%
    \o:dostartopelkaar:[#1]%
    \verify:config{\currentregister-env}{null-default-env}%
    \csname a:\currentregister-env\endcsname
 }
 \HLet\dostartopelkaar\:tempc
 %%%%%% pre 2005
 \ifx \stopopelkaar\:UnDef \else
   \pend:def\stopopelkaar{%
      \csname b:\currentregister-env\endcsname
   }
 \fi
 -_-_-

NOTE: REPLACE opelkaar WITH packed