Pipe price sources

[ThomasdenH]

I would like to have some way of combining price sources. For example, say there is a source that denotes the price of Asset X in USD, I would then like to combine that with a source for USD denoted in EUR to get the price of asset X in EUR.

I tried to write this as just another price source, but the result will be quite ugly with all the character escapes that are needed. What do you think would be the best course of action?

Something like this could work with minimal changes to the base source parsing, but the syntax becomes quite convoluted. By adding more string escaping it could work without changes to the current parsing at all.

2000-01-01 commodity AAPL
  price: "USD:pipe/yahoo//AAPL>coinbase//USD-EUR"

[vascosantos]

This would be great.

Some commodities are not be available in the desired currency through the available APIs. But we could chain multiple conversions.

It would be great to be able to specify AAPL-USD and USD-EUR quotes (fetchable from APIs) and have the reports converted all the way down to the desired currency - EUR in this case.