Alan L Tyree <alanty...@gmail.com> 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 -- Send from my Emacs
