implement "inlined" conditions (like `- if $x > 4:`)

src/chat.rs

@@ -27,6 +27,7 @@ pub const TOKEN_NOWAIT: &str = "nowait";
 
 pub const TOKEN_INCLUDE: &str = "include";
 pub const TOKEN_GOTO_EXIT: &str = "EXIT";
+pub const TOKEN_IF_INLINE: &str = "if ";  // for lines like `- if foo:`
 
 pub const DEFAULT_SOUND: &str = "chat";
 pub const MAX_BRANCH_DEPTH: usize = 64;
@@ -242,6 +243,9 @@ impl ChatDB {
                     if non_choice_tokens.contains(&key.as_str()) {
                         continue;
                     }
+                    if key.as_str().starts_with(TOKEN_IF_INLINE) {
+                        continue;
+                    }
                     result = Some((key.into(), map[key].clone(), nowait));
                 }
             }
@@ -354,16 +358,12 @@ impl ChatDB {
                         result = Some(Value::String(value_string.into()));
                     }
                     Some(Value::Mapping(mapping)) => {
-                        if let Some(branch) = mapping.get(TOKEN_THEN) {
-                            result = Some(Value::Mapping(mapping.clone()));
-                            next_pointer = Some(branch.clone());
-                        }
-                        else if let Some((_choicetext, subconversation, _)) = self.search_choice(value) {
-                            result = Some(Value::Mapping(mapping.clone()));
-                            next_pointer = Some(subconversation);
-                        }
-                        else {
-                            result = Some(Value::Mapping(mapping.clone()));
+                        result = Some(Value::Mapping(mapping.clone()));
+                        for value in mapping.values() {
+                            if let Some(list) = value.as_sequence() {
+                                next_pointer = Some(Value::Sequence(list.clone()));
+                                break;
+                            }
                         }
                     }
                     None => {
@@ -447,6 +447,15 @@ impl ChatDB {
                         }
                         _ => {}
                     }
+
+                    if let Some(key) = key {
+                        if key.starts_with(TOKEN_IF_INLINE) {
+                            let condition: &str = &key[TOKEN_IF_INLINE.len()..];
+                            let mut pos = chat.position.clone();
+                            pos.push(0);
+                            event.send(ChatEvent::GotoIf(condition.into(), pos));
+                        }
+                    }
                 }
 
                 // Second pass

src/chats/serenity.yaml

@@ -17,8 +17,7 @@
 
 
 - chat: Icarus
-- if: $met
-  then:
+- if $met:
   - Oh hey, you're back!
   - How are you doing?
   - goto: howru