TODO

   1 - [ ] Output formats:
   2   - [x] text long
   3   - [x] text short
   4   - [ ] HTML
   5   - [ ] JSON
   6 - [ ] Convert to Typed Racket
   7   - requires: build executable (otherwise too slow)
   8 - [x] Build executable
   9   Implies fix of "collection not found" when executing the built executable
  10     outside the source directory:
  11
  12     collection-path: collection not found
  13       collection: "tt"
  14       in collection directories:
  15       context...:
  16        /usr/share/racket/collects/racket/private/collect.rkt:11:53: fail
  17        /usr/share/racket/collects/setup/getinfo.rkt:17:0: get-info
  18        /usr/share/racket/collects/racket/contract/private/arrow-val-first.rkt:555:3
  19        /usr/share/racket/collects/racket/cmdline.rkt:191:51
  20        '|#%mzc:p
  21
  22 - [ ] Support redirects
  23   - should permanent redirects update the feed somehow?
  24 - [ ] Support time ranges (i.e. reading the timeline between given time points)
  25 - [x] Implement rfc3339->epoch
  26 - [x] Remove dependency on rfc3339-old
  27 - [x] remove dependency on http-client
  28 - [ ] optional text wrap
  29 - [ ] write
  30 - [x] caching (use cache by default, unless explicitly asked for update)
  31   - [x] value --> cache
  32   - [x] value <-- cache
  33     requires: d command
  34 - [ ] timeline limits
  35 - [ ] feed set operations (perhaps better done externally?)
  36 - [ ] timeline as a result of a query (feed set op + filter expressions)
  37 - [ ] named timelines
  38 - [ ] config files
  39 - [ ] parse "following" from feed
  40   - following = <nick> <uri>
  41 - [ ] parse mentions:
  42   - @<source.nick source.url> | @<source.url>
  43 - [ ] highlight mentions
  44 - [ ] filter on mentions
  45 - [ ] highlight hashtags
  46 - [ ] filter on hashtags
  47 - [ ] hashtags as channels? initial hashtag special?
  48 - [ ] query language
  49 - [ ] console logger colors by level ('error)
  50 - [ ] file logger ('debug)
  51 - [-] commands:
  52   - [x] r | read
  53     - see timeline ops above
  54   - [ ] w | write
  55     - arg or stdin
  56     - nick expand to URI
  57   - [ ] q | query
  58     - see timeline ops above
  59     - see hashtag and channels above
  60   - [x] d | download
  61   - [x] u | upload
  62     - calls user-configured command to upload user's own feed file to their server
  63   Looks like a better CLI parser than "racket/cmdline": https://docs.racket-lang.org/natural-cli/
  64   But it is no longer necessary now that I've figured out how to chain (command-line ..) calls.
  65 - [ ] Suport immutable timelines
  66     - store individual messages (possibly in something like DBM or SQLite)