Re: texinfo.tex doesn't allow underscore in flag names for @ifset etc.

[Akim Demaille]

>>>>> "Eli" == Eli Zaretskii <address@hidden> writes:

>> From: Paul Eggert <address@hidden> Date: Fri, 17 Aug 2001
>> 08:16:06 -0700 (PDT)
>> 
>> The texinfo documentation doesn't specify the syntax of flags like
>> "foo_bar"; if underscore is not allowed in flag names, it would be
>> helpful to document that restriction.

Eli> It's documented; see the node "set value".  I've just sent to
Eli> Karl Berry a suggested change for the Texinfo manual that would
Eli> add an index entry "underscores in `set' and `value'", to make
Eli> this easier to find.

As I just answered to you there is this documentation too:

@node ifset ifclear
@subsection @code{@@ifset} and @code{@@ifclear}

@findex ifset
When a @var{flag} is set, the Texinfo formatting commands format text
between subsequent pairs of @code{@@ifset @var{flag}} and @code{@@end
ifset} commands.  When the @var{flag} is cleared, the Texinfo formatting
commands do @emph{not} format the text.

Use the @code{@@set @var{flag}} command to turn on, or @dfn{set}, a
@var{flag}; a @dfn{flag} name can be any single word, containing
letters, numerals, hyphens, or underscores.
                               ^^^^^^^^^^^