Re: [Docutils-users] Substitution for math formula?

[Guenter M. <mi...@us...>]

On 2016-02-15, Oleksandr Gavenko wrote:
> This:

>   .. |fib| replace:: :math:`fib(n) = fib(n-1)+fib(n-2)`

> works in:

>   Substitution of mathematic formula: |fib|.

> But this:

>   .. |fib| math:: fib(n) = fib(n-1)+fib(n-2)

> produced error:

>   main.rst:211: (WARNING/2) Substitution definition "fib" empty or invalid.

>   ..    |fib| math:: fib(n) = fib(n-1)+fib(n-2)

>   main.rst:209: (ERROR/3) Undefined substitution referenced: "fib".

> HTML output from rst2html have marked |fib| and formula shown only for
> directive.

> It that correct?

Yes, the second syntax is invalid. There is a limited set of replacement
options, only the directives listed in
http://docutils.sourceforge.net/docs/ref/rst/directives.html#directives-for-substitution-definitions
and image are supported.

Günter