retex-engine 1.0.0

 restricted system commands enabled.
**context-ctrl-chars.tex
(./context-ctrl-chars.tex
! Undefined control sequence.
\a ->x^^Q^^A\undefined 
                   yy
l.3 \def\a{x^^Q^^A\undefined yy}\a
                                  
The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Use of \b doesn't match its definition.
l.4 \def\b#1{#1\undefined}\b{
                             ^^Q^^Qz}
If you say, e.g., `\def\a1{...}', then you must always
put `1' after `\a', since control sequence names are
made up of letters only. The macro here has not been
followed by the required stuff, so I'm ignoring it.

! Too many }'s.
l.4 \def\b#1{#1\undefined}\b{^^Q^^Qz}
                                     
You've closed more groups than you opened.
Such booboos are generally harmless, so keep going.

! Undefined control sequence.
l.5 ab^^A^^Ac\undefined
                    d^^Ae
The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
l.6 \message{^^Q^^Q\undefined
                             }
The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

^^Q^^Q
! a^^Qb.
l.7 \errmessage{a^^Qb}
                      
This error message was generated by an \errmessage
command, so I can't give any explicit help.
Pretend that you're Hercule Poirot: Examine all clues,
and deduce the truth by order and method.

[0])
Output written on context-ctrl-chars.dvi (1 page, 132 bytes).