* Saving the pandoc AST @ 2020-09-18 19:16 Brandon Barker [not found] ` <57b6a6d4-134c-4167-9f14-9c0a0607186an-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org> 0 siblings, 1 reply; 4+ messages in thread From: Brandon Barker @ 2020-09-18 19:16 UTC (permalink / raw) To: pandoc-discuss [-- Attachment #1.1: Type: text/plain, Size: 1382 bytes --] Hello! I'm wondering if it is currently possible to save the pandoc AST of a document, and have it read in by pandoc at a later time? The use case I have in mind relates to preservation. It may be possible that an ancient file becomes difficult to read down the road, though presumably if the old version of pandoc that originally read it existed, it would be possible, if possibly more trouble. Whether or not this would be extremely useful would also depend on if pandoc is pretty good at reading old versions of the AST. It looks like the AST includes pandoc-version <https://hackage.haskell.org/package/base-4.12.0.0/docs/Data-Version.html#t:Version>information already, which could be handy in principle, though I don't know if it is currently used as mentioned above in practice. I didn't see the ability to save or read the AST listed as command-line options (though I may have missed it), but I'm more interested in the Haskell API anyway. Thanks! -- You received this message because you are subscribed to the Google Groups "pandoc-discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to pandoc-discuss+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To view this discussion on the web visit https://groups.google.com/d/msgid/pandoc-discuss/57b6a6d4-134c-4167-9f14-9c0a0607186an%40googlegroups.com. [-- Attachment #1.2: Type: text/html, Size: 1784 bytes --] ^ permalink raw reply [flat|nested] 4+ messages in thread
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* Re: Saving the pandoc AST [not found] ` <57b6a6d4-134c-4167-9f14-9c0a0607186an-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org> @ 2020-09-18 19:41 ` Denis Maier 2020-09-18 20:11 ` Albert Krewinkel 2020-11-04 3:15 ` christi...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org 2 siblings, 0 replies; 4+ messages in thread From: Denis Maier @ 2020-09-18 19:41 UTC (permalink / raw) To: pandoc-discuss-/JYPxA39Uh5TLH3MbocFFw [-- Attachment #1: Type: text/plain, Size: 2257 bytes --] Well saving is just pandoc input -t native -o whatever.ast I have never tried, but reading should work like this: pandoc whatever.ast -f native ... Am 18.09.2020 um 21:16 schrieb Brandon Barker: > Hello! > > I'm wondering if it is currently possible to save the pandoc AST of a > document, and have it read in by pandoc at a later time? The use case > I have in mind relates to preservation. It may be possible that an > ancient file becomes difficult to read down the road, though > presumably if the old version of pandoc that originally read it > existed, it would be possible, if possibly more trouble. Whether or > not this would be extremely useful would also depend on if pandoc is > pretty good at reading old versions of the AST. > > It looks like the AST includes pandoc-version > <https://hackage.haskell.org/package/base-4.12.0.0/docs/Data-Version.html#t:Version>information > already, which could be handy in principle, though I don't know if it > is currently used as mentioned above in practice. > > I didn't see the ability to save or read the AST listed as > command-line options (though I may have missed it), but I'm more > interested in the Haskell API anyway. > > Thanks! > -- > You received this message because you are subscribed to the Google > Groups "pandoc-discuss" group. > To unsubscribe from this group and stop receiving emails from it, send > an email to pandoc-discuss+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org > <mailto:pandoc-discuss+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/pandoc-discuss/57b6a6d4-134c-4167-9f14-9c0a0607186an%40googlegroups.com > <https://groups.google.com/d/msgid/pandoc-discuss/57b6a6d4-134c-4167-9f14-9c0a0607186an%40googlegroups.com?utm_medium=email&utm_source=footer>. -- You received this message because you are subscribed to the Google Groups "pandoc-discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to pandoc-discuss+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To view this discussion on the web visit https://groups.google.com/d/msgid/pandoc-discuss/267d1225-d121-1254-c320-e3bddf1cfbd3%40mailbox.org. [-- Attachment #2: Type: text/html, Size: 3504 bytes --] ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Saving the pandoc AST [not found] ` <57b6a6d4-134c-4167-9f14-9c0a0607186an-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org> 2020-09-18 19:41 ` Denis Maier @ 2020-09-18 20:11 ` Albert Krewinkel 2020-11-04 3:15 ` christi...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org 2 siblings, 0 replies; 4+ messages in thread From: Albert Krewinkel @ 2020-09-18 20:11 UTC (permalink / raw) To: pandoc-discuss-/JYPxA39Uh5TLH3MbocFFw Brandon Barker writes: > I'm wondering if it is currently possible to save the pandoc AST of a > document, and have it read in by pandoc at a later time? There are even two ways: either use the Haskell representation with `--to=native` or JSON with `--to=json`. > The use case I have in mind relates to preservation. It may be > possible that an ancient file becomes difficult to read down the road, > though presumably if the old version of pandoc that originally read it > existed, it would be possible, if possibly more trouble. Whether or > not this would be extremely useful would also depend on if pandoc is > pretty good at reading old versions of the AST. Pandoc only reliably read the AST version against which it was compiled. It's probably better to use a format which supports most of pandoc's AST features for both input and output, e.g., Markdown or HTML. You may find use in the nascent [ast-migrator] library and migrate an archived AST to the current version. But the above still stands. > I didn't see the ability to save or read the AST listed as command-line > options (though I may have missed it), but I'm more interested in the > Haskell API anyway. Same as writing, just with `--from` (or `-f`) instead of `--to` / `-t`. [ast-migrator]: https://github.com/tarleb/ast-migrator -- Albert Krewinkel GPG: 8eed e3e2 e8c5 6f18 81fe e836 388d c0b2 1f63 1124 ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Saving the pandoc AST [not found] ` <57b6a6d4-134c-4167-9f14-9c0a0607186an-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org> 2020-09-18 19:41 ` Denis Maier 2020-09-18 20:11 ` Albert Krewinkel @ 2020-11-04 3:15 ` christi...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org 2 siblings, 0 replies; 4+ messages in thread From: christi...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org @ 2020-11-04 3:15 UTC (permalink / raw) To: pandoc-discuss [-- Attachment #1.1: Type: text/plain, Size: 2008 bytes --] As others said it is doable. But I wouldn't suggest using the pandoc AST for preservation. The target formats is more stable than the pandoc API itself. Unlike something like TeX which has been declared feature complete and hence is a stable format, pandoc's AST is still a moving target. It depends on your source format, but the best way to preserve it probably is itself, plus a reproducible recipe to generate an output (recipe should include the steps involved, dependencies including their versions.) On Friday, September 18, 2020 at 12:16:30 PM UTC-7 Brandon Barker wrote: > Hello! > > I'm wondering if it is currently possible to save the pandoc AST of a > document, and have it read in by pandoc at a later time? The use case I > have in mind relates to preservation. It may be possible that an ancient > file becomes difficult to read down the road, though presumably if the old > version of pandoc that originally read it existed, it would be possible, if > possibly more trouble. Whether or not this would be extremely useful would > also depend on if pandoc is pretty good at reading old versions of the AST. > > It looks like the AST includes pandoc-version > <https://hackage.haskell.org/package/base-4.12.0.0/docs/Data-Version.html#t:Version>information > already, which could be handy in principle, though I don't know if it is > currently used as mentioned above in practice. > > I didn't see the ability to save or read the AST listed as command-line > options (though I may have missed it), but I'm more interested in the > Haskell API anyway. > > Thanks! > -- You received this message because you are subscribed to the Google Groups "pandoc-discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to pandoc-discuss+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To view this discussion on the web visit https://groups.google.com/d/msgid/pandoc-discuss/d0fbac54-3906-40fe-9707-2b1065758541n%40googlegroups.com. [-- Attachment #1.2: Type: text/html, Size: 2887 bytes --] ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2020-11-04 3:15 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2020-09-18 19:16 Saving the pandoc AST Brandon Barker [not found] ` <57b6a6d4-134c-4167-9f14-9c0a0607186an-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org> 2020-09-18 19:41 ` Denis Maier 2020-09-18 20:11 ` Albert Krewinkel 2020-11-04 3:15 ` christi...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
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