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| -rw-r--r-- | doc/gf-modules.html | 14 |
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diff --git a/doc/gf-modules.html b/doc/gf-modules.html index 0a085ac49..ce6a5b41f 100644 --- a/doc/gf-modules.html +++ b/doc/gf-modules.html @@ -749,11 +749,23 @@ times. Here is a summary of how they are compiled: </ul> This means that some generated code is duplicated, because those operations that do have complete definitions in an <tt>interface</tt> are copied to each of -the <tt>instances</tt> +the <tt>instances</tt>. <h3>Transfer modules</h3> +<b>Translation by transfer</b> means that syntax trees are manipulated +by non-compositional functions (<b>transfer rules</b>) between the +source and target languages. They are being introduce to GF as a module +type of its own, but their development is still in progress. What +will be available are <i>at least</i> <tt>fun</tt> and <tt>def</tt> +judgements, but more is needed. It has not yet been defined how +transfer modules are integrated in multilingual grammars, i.e.\ +where in the grammar it is specified what transfer to use. +(Both GF and GFC have a syntax for transfer modules and +multilingual headers, but their compilation further than parsing +has not been implemented.) + <h2>Summary of module syntax and semantics</h2> |