qx_rs_val 0.0.0

quick val util in rust.
Documentation 
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use qx_rs_err::err::*;

use std::any::type_name;
use std::str::FromStr;

pub fn from_str<F: FromStr>(v: &str) -> Result<F> {
    let mut v = v;
    let _type = type_name::<F>();
    if _type == type_name::<bool>() {
        if v == "1" || v == "true" || v == "T" || v == "TRUE" || v == "yes" || v == "YES" {
            v = "true";
        } else if v == "0" || v == "false" || v == "F" || v == "FALSE" || v == "no" || v == "NO" {
            v = "false";
        } else {
            return Err(Error::error_info("parse bool failed").ext(v));
        }
    }
    let val = v.parse::<F>().map_err(|_|{
        Error::error_info(format!("parse {} failed", _type).as_str()).ext(v)
    })?;
    Ok(val)
}