Reository Path, FAQ, and Index Questions

[Christian Himpe]

Hello,

I would like to ask how I can programmatically determine the system location of 
eggs?
I ask because if I installed an egg to a user directory and I want to use the 
system's eggs as well as the user egg, it seems I need to have the system's and 
the user egg repository in the CHICKEN_REPOSITORY_PATH environment variable. As 
the system's location may differ among operating systems, I would like to 
determine this path from the command line and add it by script.

Also, is it possible that the "How can I install CHICKEN eggs to a non-default 
location?" section of the "Frequently Asked Question":

http://wiki.call-cc.org/faq#how-can-i-install-chicken-eggs-to-a-non-default-location

is out of date? "chicken-install -init" and "(repository-path ...)" seem not be 
available in CHICKEN Scheme 5.2, unless I am using it incorrectly.

Lastly, I would like to ask if CHICKEN Scheme has a function/symbol index, as 
for example Chez Scheme has:

https://www.scheme.com/csug8/csug_1.html

and I just overlooked it?

Thank You

Christian