Re-work filtering and caching

* sx-auth.el
  - Use new symbolic cache access

* sx-cache.el
  - Implement symbolic cache access

* sx-filter.el
  - Use symbolic cache access
  - Compile and save filters on-demand
    (more work to be done to this end)

* sx-question.el
  - Symbolic filters

* sx-request.el
  - Protection against infinitely recursing when compiling a filter
    This will be re-worked into requests (a front-end function) and
    'raw' requests (a back-end function).  The front-end will add
    convenience to the back-end.

* test/tests.el
  Remove outdated tests

1 files changed, 8 insertions, 1 deletions

diff --git a/sx-cache.el b/sx-cache.el
index a090982..54ae94f 100644
--- a/sx-cache.el
+++ b/sx-cache.el
@@ -20,7 +20,12 @@
 
 ;;; Commentary:
 
+;; All caches are retrieved and set using symbols.  The symbol should
+;; be the sub-subpackage that is using the cache.  For example,
+;; `sx-pkg' would use `(sx-cache-get 'pkg)'.
 ;;
+;; This symbol is then converted into a filename within
+;; `sx-cache-directory'.
 
 ;;; Code:
 
@@ -30,7 +35,9 @@
 
 (defun sx-cache-get-file-name (filename)
   "Expands FILENAME in the context of `sx-cache-directory'."
-  (expand-file-name filename sx-cache-directory))
+  (expand-file-name
+   (concat (symbol-name filename) ".el")
+   sx-cache-directory))
 
 (defun sx-cache-get (cache)
   "Return the data within CACHE.