Re: [Haskell-cafe] ANNOUNCE: Anansi 0.4.2 (literate programming pre-processor)

On Tue, Dec 13, 2011 at 12:36:44PM -0800, John Millikin wrote:

On Tue, Dec 13, 2011 at 03:39, Magnus Therning wrote:

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1. What to call files?  I understand (C)WEB suggests using .w, and that noweb uses .nw, what should I call anansi files?

I usually use .anansi, but it doesn't matter. You can use whatever extensions you like, or even none at all.

I'll stick to .anansi as well then, it's rather descriptive :-)

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2. Combining anansi and pandoc works quite well for HTML, but it fails miserably when trying to use the generated LaTeX:

   > markdown2pdf: ! LaTeX Error: Command \guillemotleft unavailable in encoding OT1.

   Is there any good way to get around that?

The LaTeX loom is designed to output basic markup that can be turned into a PDF with minimum fuss. It probably won't work as-is for more advanced cases, such as when a user wants to use custom templates, or has to inter-operate with pseudo-LaTeX parsers like Pandoc.

I was probably unclear, I *really* would like to use the markdown loom and then pass the weave through pandoc to be able to create html/latex from the same source. So I suspect the problem I ran into is more related to pandoc than anansi, but I was hoping that someone among the anansi users had run into and solved it already :-)

You could try copying the LaTeX loom into your own code, modifying it to generate the custom output format you want, and then running it as a #!runhaskell script.

I might try that, but then use the markdown loom as the basis instead. It would be nice to have a specific pandoc loom that makes use of its extensions to markdown, where that makes sense.

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3. Is there any editor support for anansi, syntax highlihgting etc?

Not that I know of. Note that Anansi's syntax itself is very minimal, so what you need is an editor that can support formatting a file using multiple syntaxes. I don't know enough about editor modification to figure out which editors support such a feature, or how to enable it.

It's rather easy to do in vim, e.g. by setting the filetype to something line 'markdown.haskell'. I haven't tried putting together three filetypes, but I suspect it just works :-) If I get around to putting together an anansi syntax file for vim I'll make sure to share it. /M -- Magnus Therning OpenPGP: 0xAB4DFBA4 email: magnus@therning.org jabber: magnus@therning.org twitter: magthe http://therning.org/magnus Perl is another example of filling a tiny, short-term need, and then being a real problem in the longer term. -- Alan Kay