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[Texmacs-dev] "hello world" for converter plugin wanted

From: Immanuel Normann
Subject: [Texmacs-dev] "hello world" for converter plugin wanted
Date: Mon, 23 Aug 2004 01:07:25 +0200


currently I struggle with writing a converter as plugin. Unfortunately I can't 
find an example from where I could learn all steps. I know that there are these 
examples of plugins in "example/plugins", but none of them are converters (btw. 
the "world" plugin does not work in texmacs 1.4.1, as "insert-string" is an 
unbound variable). On the other hand I can find converters in "progs/convert", 
but these are not plugins.

So in my opinion a kind of hello world converter as plugin would be a nice 
thing! Let me try this with your help:

Assume we have:
> ls $TEXMACS_HOME_PATH/plugins/my-converter/prog

And the content of init-my-converter.cm would be:


(define-format xyz
  (:name "Xyz")
  (:suffix "xyz")
  (:recognize xyz-recognizes?))

(converter xyz-document xyz-stree
  (:function parse-xyz-document))

(converter xyz-stree xyz-document
  (:function serialize-xyz))

(converter xyz-snippet xyz-stree
  (:function parse-xyz-snippet))

(converter xyz-stree xyz-snippet
  (:function serialize-xyz))

(converter xyz-stree texmacs-stree
  (:function xyz->texmacs))

(converter texmacs-stree xyz-stree
  (:function texmacs->xyz))


And all the functions referred by ":function" would be defined in 

Appearently this is not sufficient to make the converter accessable in TeXmacs! 
What is missing such that I can use my converter as user in TeXmacs like for 
instance the html converter? More precisely: I want to be able to import/export 
files via the "File/Import/Xyz" and "File/Export/Xyz" menu. And I want to be 
able to copy and paste via "Edit/Copy to/Xyz" and "Edit/Paste from/Xyz". How is 
this done?

Further: If I want to use inside of my-converter.scm a function foo which 
resides in a file my-helpers.scm (in the dir of my-converter.scm), how do I 
make this foo accessable in my-converter? To put this question more general: 
There is this "texmacs-module" macro and also an "import-from" and I don't know 
exactly how to use that (and I could not find help docs).

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