Node / public / precursor-lxmfchat.git / files / xous-core / services / shellchat / src / cmds / tts.rs

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use core::fmt::Write;

use String;

use tts_frontend::*;

use crate::{CommonEnv, ShellCmdApi};

#[derive(Debug)]

pub struct Tts {

pub fe: TtsFrontend,

}

impl Tts {

pub fn new(xns: &xous_names::XousNames) -> Tts { Tts { fe: TtsFrontend::new(xns).unwrap() } }

}

impl<'a> ShellCmdApi<'a> for Tts {

cmd_api!(tts);

// inserts boilerplate for command API

fn process(&mut self, args: String, _env: &mut CommonEnv) -> Result<Option<String>, xous::Error> {

let mut ret = String::new();

let helpstring = "tts options: speak";

let mut tokens = args.split(' ');

if let Some(sub_cmd) = tokens.next() {

match sub_cmd {

"speak" => {

let mut text = String::new();

join_tokens(&mut text, &mut tokens);

self.fe.tts_simple(text.as_str()).unwrap();

}

_ => {

write!(ret, "{}", helpstring).unwrap();

}

}

} else {

write!(ret, "{}", helpstring).unwrap();

}

Ok(Some(ret))

}

}

fn join_tokens<'a>(buf: &mut String, tokens: impl Iterator<Item = &'a str>) {

for (i, tok) in tokens.enumerate() {

if i == 0 {

write!(buf, "{}", tok).unwrap();

} else {

write!(buf, " {}", tok).unwrap();

}

}

}