added CHANGE command

server/src/parsing.rs

@@ -165,7 +165,7 @@ fn character_parse
 	// Ensure the index is valid (the index is not beyond the vector)
 	let token = tokens
 		.get(sum_index)
-		.ok_or_else(|| "File reached termination point".to_string())?;
+		.ok_or_else(|| "File unexpectedly reached termination point".to_string())?;
 	match token.to_lowercase().as_str()
 	{
 		// The character is saying something, so grab the text and pass it
@@ -173,7 +173,7 @@ fn character_parse
 		"says" =>
 		{
 			info!("SAYS command with character {character_name}");
-			match strings::extract_quoted(&tokens[sum_index+1..]) // TODO increment to after the string
+			match strings::extract_quoted(&tokens[sum_index+1..])
 			{
 				Some((output_string, counter)) =>
 				{
@@ -185,9 +185,35 @@ fn character_parse
 					data.character = character_name;
 					data.choices = vec![];
 				},
-				None => return Err(String::from("Unable to read string")),
+				None => return Err("Unable to read output string".to_string()),
 			}
 		},
+		// Change the property of the selected character eg @tim CHANGE name "Bill Buffins"
+		// will change the character with ID tim to "Bill Buffins"; a character's ID cannot change
+		"change" =>
+		{
+			sum_index += 1;
+			let feature = tokens
+				.get(sum_index)
+				.ok_or_else(|| "File unexpectedly reached termination point".to_string())?;
+			let output_string: String;
+			(output_string, sum_index) = match strings::extract_quoted(&tokens[sum_index+1..])
+			{
+				Some((string,counter)) => (string,sum_index+counter),
+				None => return Err("Unable to parse property to change character".to_string()),
+			};
+			info!("CHANGE command with character {character_name} feature {feature}");
+			let mut characters = characters.lock().expect("Data cannot be unlocked");
+			if let Some(character) = characters.get_mut(&character_name)
+			{
+				if character.set_field(feature, &output_string)
+					.is_err() { warn!("Feature {feature} does not exist") };
+			}
+			let mut data = data_to_send.lock().unwrap();
+			data.action_type = String::from("change");
+			data.content = String::new();
+			data.character = character_name;
+		},
 		// Catch all condition, if the instruction is unrecognised as a
 		// character command
 		_ => return Err(format!("Invalid command: {token}")),