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Add more CLI validators

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Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
This commit is contained in:
Matthias Beyer 2018-10-26 23:17:42 +02:00
parent 444498e13c
commit 1d97e36c93
1 changed files with 14 additions and 0 deletions
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14
lib/etc/libimagutil/src/cli_validators.rs
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@ -42,6 +42,20 @@ pub fn is_integer<A: AsRef<str>>(s: A) -> Result<(), String> {
i.map(|_| ()).map_err(|_| format!("Not an integer: {}", s.as_ref()))
}
pub fn is_float<A: AsRef<str>>(s: A) -> Result<(), String> {
use std::str::FromStr;
let i : Result<f64, _> = FromStr::from_str(s.as_ref());
i.map(|_| ()).map_err(|_| format!("Not an float: {}", s.as_ref()))
}
pub fn is_bool<A: AsRef<str>>(s: A) -> Result<(), String> {
use std::str::FromStr;
let i : Result<bool, _> = FromStr::from_str(s.as_ref());
i.map(|_| ()).map_err(|_| format!("Not an bool: {}", s.as_ref()))
}
pub fn is_url<A: AsRef<str>>(s: A) -> Result<(), String> {
use url::Url;
Url::parse(s.as_ref()).map(|_| ()).map_err(|_| format!("Not a URL: {}", s.as_ref()))