no-op brace command not starting a paragraph for mixing with raw output

[Patrice Dumas]

Hello,

With @inline* commands, it is rather easy to mix raw output with Texinfo
within paragraphs.  With output format block commands such as @html, it
is also possible to mix blocks without starting paragraphs.  However,
there is no way to mix raw output with Texinfo outside of paragraph and
blocks.  There is a use case, as reported by Arnold Robbins, to put
some DocBook output from Texinfo with <title> </title>.  This cannot be
done because any Texinfo content starts a paragraph.

One way to do that would be to have a no-op command similar to @asis,
but that would not start a paragraph in the Texinfo tree, even when it
contains empty lines (a paragraph could be started in output formats
for which an empty line starts a paragraph, as in TeX or LaTeX).  It
could simply be replaced by its argument in every format (including
Texinfo TeX) and would only be usefull for mixing with raw output
formats that need to happen outside of paragraphs.

Does it look useful to add such an @-command?

-- 
Pat