Remove workaround for incorrect Tolk string handling, pin minimum working version, and bump version.

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "tts"
-version = "0.6.3"
+version = "0.6.4"
 authors = ["Nolan Darilek <nolan@thewordnerd.info>"]
 repository = "https://github.com/ndarilek/tts-rs"
 description = "High-level Text-To-Speech (TTS) interface"
@@ -20,7 +20,7 @@ thiserror = "1"
 env_logger = "0.7"
 
 [target.'cfg(windows)'.dependencies]
-tolk = "0.2"
+tolk = ">= 0.2.1"
 winrt = "0.7"
 tts_winrt_bindings = { version = "0.1", path="winrt_bindings" }
 

src/backends/tolk.rs

@@ -28,25 +28,7 @@ impl Backend for Tolk {
 
     fn speak(&mut self, text: &str, interrupt: bool) -> Result<(), Error> {
         trace!("speak({}, {})", text, interrupt);
-        const BUFFER_LENGTH: usize = 300;
-        if text.len() <= BUFFER_LENGTH {
-            self.0.speak(text, interrupt);
-        } else {
-            if interrupt {
-                self.stop()?;
-            }
-            let tokens = text.split_whitespace();
-            let mut buffer = String::new();
-            for token in tokens {
-                if buffer.len() + token.len() > BUFFER_LENGTH {
-                    self.0.speak(buffer, false);
-                    buffer = String::new();
-                } else {
-                    buffer.push_str(token);
-                    buffer.push(' ');
-                }
-            }
-        }
+        self.0.speak(text, interrupt);
         Ok(())
     }