Re: [O] Org equivalent to \chapter*

[Rasmus]

Thomas,

address@hidden (Thomas S. Dye) writes:

> Rasmus <address@hidden> writes:
>
>> Alan L Tyree <address@hidden> writes:
>>
>>> I'm sure this has been asked before, but I can't seem to find it. Is
>>> there an org markup that produces a starred latex heading?
>>>
>>> In a book, for example, I want the Preface to be at chapter level, but
>>> not included in the numbering. Same for HTML export, of course.
>>
>> You would probably need some sort of filter for this.  Most certainly
>> you will be able to find implementations on this list.
>>
>> Here's something from my init file that works with LaTeX.  Other
>> formats such as txt and html are harder since Org generates section
>> numbers and the TOC.
>
> Thanks for sharing this.  It will be useful for book authors. 
>
> Do you think it is possible to write a general headline filter that
> takes care of all the various LaTeX possibilities?  

I don't like *one* filter to rule them all.  Of course, if it's a
collection of other function calls that is OK.  As your recent
question showed execution order may matter,
(e.g. with :ignoreheading:clearpage:).

Of course it's possible to bundle a couple of filters generally useful
for ox-latex and provide a "consistent" interface.  Alternatively, one
could make a ox-latex+.el that provides a derived class with extra
options. That's may be more work, and may be harder to hack.

In fact Aaron started ox-extra.el, with the intention of providing
"semi-official" extensions but Worg may be a better means of
communication.

> Right now Iʻm using tags to ignoreheading, clearpage, and newpage.
> In addition to your nonum filter, Eric S. has a filter that gets rid
> of a heading and promotes the content, which I havenʻt had occasion
> to use, but also has its own tag.

Yes, Eric has cool tree-based filter(s).  I want to study them more
carefully.  Quite possibly, it's easier to provide elegant filters
with trees.  For instance, you have direct access to the element
representation.  In my filters I "hack" my way to this using
text-properties.

> From the LaTeX authorʻs point of view, it would be great to have a set
> of tags (and options) that "just work."

Would you want this as a derived class or filters?  Perhaps it's
easier to have a derived class with an alternative headline
function. . .

> Do you (and others) think the "tag and filter" approach can achieve
> this?  Or, are there too many moving parts to make it feasible?

Yes.

The ox-koma-script interface is basically controlled via tags.  I
think it's nice.

—Rasmus

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