Function shuttle_runtime::strfmt

pub fn strfmt<K, T, 'a>(
    fmtstr: &str,
    vars: &HashMap<K, T>
) -> Result<String, FmtError>where
    T: DisplayStr,
    K: Hash + Eq + FromStr,

Rust-style format a string given a HashMap of the variables.

Arguments

• fmtstr - A string defining the format
• vars - A HashMap holding the variables to use

Exceptions

• FmtError::Invalid - The format string is structured incorrectly
• FmtError::KeyError - vars contains an invalid key
• FmtError::TypeError - the given format code for a section contains an unexpected option

Examples

use std::collections::HashMap;
use std::f64::consts::PI;
use strfmt::strfmt;

let mut my_vars: HashMap<String, f64> = HashMap::new();
my_vars.insert("Alpha".to_string(),42.0);
my_vars.insert("Beta".to_string(),PI);

println!("{}", strfmt("{Alpha} {Beta:<5.2}",&my_vars).unwrap());