pbs-tools/src/str.rs

   1 //! String related utilities.
   2
   3 use std::borrow::Borrow;
   4
   5 pub fn join<S: Borrow<str>>(data: &[S], sep: char) -> String {
   6     let mut list = String::new();
   7
   8     for item in data {
   9         if !list.is_empty() {
  10             list.push(sep);
  11         }
  12         list.push_str(item.borrow());
  13     }
  14
  15     list
  16 }
  17
  18 pub fn strip_ascii_whitespace(line: &[u8]) -> &[u8] {
  19     let line = match line.iter().position(|&b| !b.is_ascii_whitespace()) {
  20         Some(n) => &line[n..],
  21         None => return &[],
  22     };
  23     match line.iter().rev().position(|&b| !b.is_ascii_whitespace()) {
  24         Some(n) => &line[..(line.len() - n)],
  25         None => &[],
  26     }
  27 }