Re: [O] Org equivalent to \chapter*

[Rasmus]

Alan L Tyree <address@hidden> writes:

> On 07/08/14 20:05, Rasmus wrote:
>>>>>>>> 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.
>>>> Thanks for this useful overview and the pointers to good examples.
>>>>
>>>> Iʻve been slowly building a set of filters and links that work for me,
>>>> but each new project differs a bit from the previous one and I have to
>>>> fiddle with the Org mode setup.  Iʻm eager to get to the place Iʻm at
>>>> with LaTeX, where I just jump in and start writing.
>>>>
>>>> Thanks again for your help.
>>>>
>>>> All the best,
>>>> Tom
>>>>
>>> Thanks to everyone who responded.
>>>
>>> Several of my books are out of print and I am converting them to ePub
>>> and to printed form. ePub is pretty smooth by exporting to HTML and
>>> then using Calibre. LaTeX is the obvious choice for print.
>> Have you seen this project:
>>
>>       https://github.com/rzoller/tex2ebook
>>
>> I haven't tried it myself, but the process seems similar to what you
>> are doing only that it uses hevea to convert from tex to html.
>>
>> —Rasmus
>>
>>
> Thanks, Rasmus. I'll have a look at this and report back. Org -> tex
> -> 
> HTML would at least solve the unnumbered heading problem (with the use
> of your filter).
>
> As an additional aside, note that Pandoc Markdown permits the use of a
> tag to produce an unnumbered heading when exporting to HTML and LaTeX.
>
> # Heading {.unnumbered}

Pandoc has something good going for it, though in this case Org tags
seem nicer.  I'm particularly envious of the native support of
citations via "@·" in Pandoc.

> I'm a very inexperienced lisp coder, but it seems to me that this
> should be incorporated into the basic exporters. The HTML exporter,
> for example, adds the numbering to each heading. In the loop that
> accomplishes that, it should be easy to ignore headings with a tag
> such as your :nonum:. Otherwise, it is necessary to write a filter
> that not only undoes the numbering for selected headlines, but
> essentially reproduces the numbering algorithms originally introduced
> in ox-html.

How about the TOC?  Should unnumbered headlines still appear there?
If yes the implementation may be as easy as you are suggesting here
and a patch could be written.

—Rasmus

-- 
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