Implement conversation-manager pattern framework function

The _conversation-manager_ pattern previously tested in the _guess_ example game should be useful for other kinds of use cases and as such was moved into the module.

`make-conversation-manager` maintains an internal hash table of per-conversation (i.e. chat-ids) closures constructed by the provided constructor function.

Thus bot implementations such as the _guess_ game example only need to instantiate a conversation-manager, call it via e.g. `poll-updates` and implement the actual conversation logic in a custom conversation closure.

Telebot's framework function names are now consistently separated by minuses instead of capital letters.

1 files changed, 5 insertions, 5 deletions

diff --git a/example/echo.scm b/example/echo.scm
index 2e190a7..90d0af5 100644
--- a/example/echo.scm
+++ b/example/echo.scm
@@ -25,8 +25,8 @@
                          chat_id: chat_id
                          text:    text)))
 
-(telebot:pollUpdates token
-                     (lambda (u)
-                       (if (telebot:is-message? u)
-                         (begin (print-message u)
-                                (echo-message  u)))))
+(telebot:poll-updates token
+                      (lambda (u)
+                        (if (telebot:is-message? u)
+                          (begin (print-message u)
+                                 (echo-message  u)))))