Thorsten Jolitz <tjol...@gmail.com> writes: > Joseph Vidal-Rosset <joseph.vidal.ros...@gmail.com> writes: > >> 2014-07-21 6:16 GMT+02:00 Nick Dokos <ndo...@gmail.com>: >> >> The first sentence of the doc that Tom pointed to is: >> >> ,---- >> | The core Babel functions (viewing, export, tangling, etc…) are >> language >> | agnostic and will work even for languages that are not >> explicitly >> | supported. Explicit language-specific support is required only >> for >> | evaluation of code blocks in a language. >> `---- >> >> So maybe nothing more is needed for just exporting and tangling >> (completely untested). >> >> Yes, but I do not know how to define such and such language to export. >> When I Cc -Ce I can export to latex and html for example , but I do >> not know how to extend this list. >
I don't understand: what language are you trying to export to? My take was that you export the doc to latex/pdf/html and you tangle the code fragments to some arbitrary file (a file that can be fed to a prolog interpeter to be executed). > This is a (lisp)programmers task. The usual proceeding would be to look > at the list of extisting ob-<language>.el files and pick a language that > is very similar to the new one (in case of prolog maybe a difficult > task?). Then try to adapt this file to your new language -> ob-prolog.el. Assuming that the statement I quoted is true, one should be able to export files that contain prolog code fragments: #+BEGIN_SRC prolog foo #+END_SRC One has to do `:exports code' since exporting results would require evaluation which *would* require that one write an ob-prolog.el. Also, one should be able to tangle the prolog code fragment(s) into files (no ob-prolog.el needed). Exporting and tangling are generic services that babel provides even if there is no evaluation for that language. But as I said, I have not tried it: I am only trying to interpret what the doc is saying, so when the eating comes, the pudding may be stale. If the interpretation is wrong, I would love to be corrected. If the interpretation is right, but the exporting/tangling does not work, then that would be a babel bug. Nick