On 8/20/12, Joseph Wright <[log in to unmask]> wrote:
> On 20/08/2012 18:31, Joel C. Salomon wrote:
>> Also, when typesetting it on my own system, I get this error message
>>
>> (./l3doc.ind [47]
>> ! Misplaced alignment tab character &.
>> l.9   \item \verb*&\&&
>>                       \pfill \hdclindex{1129}{}{0}, \hdclindex{1142}{}{0}
>> ?
>
> Typesets fine here at present.

I get the same error as Joel.  Joseph, did you run makeindex?  I'm running

pdflatex l3doc.dtx
makeindex -q -s l3doc.ist -o l3doc.ind l3doc.idx
pdflatex l3doc.dtx

to get the error.  The problem comes from indexing the \& command when
the \verbatimchar used by indexing macros is &.  Ideally, we could
change the verbatim character depending on the function being indexed.
 The same error occurs with one of the l3fp files IIRC, since &
appears in a \begin{macro} argument.  Changing the \verbatimchar to
something else would just be a temporary fix.

Bruno