// @name commands
// @return Vec<String>
// @brief Extract commands by semicolon and newline
// @param tcl: &str
pub fn commands(tcl: &str) -> Vec<String> {
    let mut commands: Vec<String> = vec![];
    let mut quote: bool = false;
    let mut new_command: String = String::new();

    for character in tcl.chars() {
        if quote {
            new_command.push(character);
            if character == '"' {
                quote = false;
            }
        } else {
            match character {
                '\n' | ';' => {
                    commands.push(new_command.clone());
                    new_command = String::new();
                }
                '"' => {
                    new_command.push(character);
                    quote = true;
                }
                _ => new_command.push(character),
            }
        }
    }

    commands.push(new_command);

    return commands;
}

// @name words
// @return Vec<String>
// @brief Split command into words.
// @param command: &str
pub fn words(command: &str) -> Vec<String> {
    vec![]
}