pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
    let mut module = context.new_module("env_var");
    let config: EnvVarConfig = EnvVarConfig::try_load(module.config);

    let env_value = get_env_value(context, config.variable?, config.default)?;
    let parsed = StringFormatter::new(config.format).and_then(|formatter| {
        formatter
            .map_meta(|var, _| match var {
                "symbol" => Some(config.symbol),
                _ => None,
            })
            .map_style(|variable| match variable {
                "style" => Some(Ok(config.style)),
                _ => None,
            })
            .map(|variable| match variable {
                "env_value" => Some(Ok(&env_value)),
                _ => None,
            })
            .parse(None)
    });

    module.set_segments(match parsed {
        Ok(segments) => segments,
        Err(error) => {
            log::warn!("Error in module `env_var`:\n{}", error);
            return None;
        }
    });

    Some(module)
}
/// Creates a module with the value of the chosen environment variable
///
/// Will display the environment variable's value if all of the following criteria are met:
///     - env_var.disabled is absent or false
///     - env_var.variable is defined
///     - a variable named as the value of env_var.variable is defined
Creates a module with the value of the chosen environment variable
Will display the environment variable's value if all of the following criteria are met:
env_var.disabled is absent or false
env_var.variable is defined
a variable named as the value of env_var.variable is defined
Creates a module with the value of the chosen environment variable Will display the environment variable ' s value if all of the following criteria are met : env_var . disabled is absent or false env_var . variable is defined a variable named as the value of env_var . variable is defined
pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
    let mut module = context.new_module("env_var");
    let config: EnvVarConfig = EnvVarConfig::try_load(module.config);
    let env_value = get_env_value(context, config.variable?, config.default)?;
    let parsed = StringFormatter::new(config.format).and_then(|formatter| {
        formatter
            .map_meta(|var, _| match var {
                "symbol" => Some(config.symbol),
                _ => None,
            })
            .map_style(|variable| match variable {
                "style" => Some(Ok(config.style)),
                _ => None,
            })
            .map(|variable| match variable {
                "env_value" => Some(Ok(&env_value)),
                _ => None,
            })
            .parse(None)
    });
    module.set_segments(match parsed {
        Ok(segments) => segments,
        Err(error) => {
            log::warn!("Error in module `env_var`:\n{}", error);
            return None;
        }
    });
    Some(module)
}
pub fn module < ' a > ( context : & ' a Context ) -> Option < Module < ' a > > { let mut module = context . new_module ( " " ) ; let config : EnvVarConfig = EnvVarConfig :: try_load ( module . config ) ; let env_value = get_env_value ( context , config . variable ? , config . default ) ? ; let parsed = StringFormatter :: new ( config . format ) . and_then ( | formatter | { formatter . map_meta ( | var , _ | match var { " " => Some ( config . symbol ) , _ => None , } ) . map_style ( | variable | match variable { " " => Some ( Ok ( config . style ) ) , _ => None , } ) . map ( | variable | match variable { " " => Some ( Ok ( & env_value ) ) , _ => None , } ) . parse ( None ) } ) ; module . set_segments ( match parsed { Ok ( segments ) => segments , Err ( error ) => { log :: warn ! ( " \n " error ) ; return None ; } } ) ; Some ( module ) }
Creates a module with the value of the chosen environment variable
Will display the environment variable's value if all of the following criteria are met:
 env_var.disabled is absent or false
 env_var.variable is defined
 a variable named as the value of env_var.variable is defined
Creates a module with the value of the chosen environment variable Will display the environment variable ' s value if all of the following criteria are met : env_var . disabled is absent or false env_var . variable is defined a variable named as the value of env_var . variable is defined
context
&'a Context