Bug#752773: Bug report: the new listings.sty yields failures

[Norbert Preining <preining@logic.at>]

Dear Jobst,

here at Debian we got a bug report concerning the latest listings
package, and I can confirm that it is the same on TeX Live
original.

The minimal file that worked with previous version but not
anymore is:

--------------------
\documentclass{article}
\usepackage{listings}
\newcommand\foo{\lstinline{t}}
\begin{document}
\begin{tabular}{l}
\foo
\end{tabular}
\end{document}
--------------------

The error is:
! Missing { inserted.
<inserted text> 
                {
l.7 \end{tabular}
                 
? 

The original reporter (in Cc) also provided an analysis:

> \newcommand\lstinline[1][]{%
>     \leavevmode\bgroup % \hbox\bgroup --> \bgroup
>       \def\lst@boxpos{b}%
>       \lsthk@PreSet\lstset{flexiblecolumns,#1}%
>       \lsthk@TextStyle
>       \@ifnextchar\bgroup{%
>         \ifnum`{=0}\fi%
>         \afterassignment\lst@InlineG \let\@let@token}%
>                          \lstinline@}
> 
> and it is the "\ifnum`{=0}\fi%" line (added in this new version) that
> triggers the error.


Thanks for your great work and all the best

Norbert

------------------------------------------------------------------------
PREINING, Norbert                               http://www.preining.info
JAIST, Japan                                 TeX Live & Debian Developer
GPG: 0x860CDC13   fp: F7D8 A928 26E3 16A1 9FA0  ACF0 6CAC A448 860C DC13
------------------------------------------------------------------------