Re: Variable substitution in help strings

[Thomas Dickey]

On Sat, 24 Jan 2004, Rafael Laboissiere wrote:

> * Thomas Dickey <address@hidden> [2004-01-24 07:44]:
>
> > On Sat, 24 Jan 2004, Rafael Laboissiere wrote:
> >
> > > if test -n "$ac_init_help"; then
> > > m4_ifset([AC_PACKAGE_STRING],
> > > [  case $ac_init_help in
> > >      short | recursive ) echo "Configuration of AC_PACKAGE_STRING:";;
> > >    esac])
> > >   cat <<\_ACEOF
> > > m4_divert_pop([HELP_ENABLE])dnl
> > > m4_divert_push([HELP_END])dnl
> > > m4_ifset([AC_PACKAGE_BUGREPORT], [
> > > Report bugs to <AC_PACKAGE_BUGREPORT>.])
> > > _ACEOF
> > > fi
> > >
> > > I still do not understand why the quoting of _ACEOF is necessary.  Could 
> > > an
> > > autoconf developer explain it to me, please?
> >
> > I'm not in that category.  However from context it seems likely that the
> > angle brackets were the feature of concern.
>
> Why?  The following works perfectly with ash, dash, or bash:
>
>    $ cat <<EOF
>    <foo>
>    EOF

But the commit comment said there was a problem with the syntax
highlighting, which was the motivation for the change.

-- 
Thomas E. Dickey
http://invisible-island.net
ftp://invisible-island.net