On 9/2/2021 3:15 PM, Linas Stonys wrote:
Hi,
from time to time I face the problem where I need to do something inside
tex group (simple group or box or table cell)
or to mark up some content with tex4ht tags ( or tagging pdf )
and sometimes \aftergroup is not enough. So I would like to ask about
new token or token list which would
be inserted before current group end (\beforeendgroup).
EXAMPLE:
\showboxdepth=\maxdimen
\showboxbreadth=\maxdimen
b
\hbox{x\aftergroup d x}
c
\showlists
LOG OUTPUT:
\tenrm b
\glue(\spaceskip) 3.33333 plus 1.66666 minus 1.11111
\hbox(4.30554+0.0)x13.88893, direction TLT
.\tenrm x
.\glue(\spaceskip) 3.33333 plus 1.66666 minus 1.11111
.\tenrm x
\tenrm d
\glue(\spaceskip) 3.33333 plus 1.66666 minus 1.11111
\tenrm c
COULD BE:
b
\hbox{x\beforeendgroup d x}
c
\showlists
LOG OUTPUT:
\tenrm b
\glue(\spaceskip) 3.33333 plus 1.66666 minus 1.11111
\hbox(4.30554+0.0)x13.88893, direction TLT
.\tenrm x
.\glue(\spaceskip) 3.33333 plus 1.66666 minus 1.11111
.\tenrm x
.\tenrm d
\tenrm c
Of course here needs to think about several same macros how they should
queue the content.
In luametatex we have
\starttext
{[test\atendofgroup{]}
\stoptext
(plus more)
Hans
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