vendor/bstr/examples/uppercase.rs

   1 use std::error::Error;
   2 use std::io::{self, Write};
   3
   4 use bstr::{io::BufReadExt, ByteSlice};
   5
   6 fn main() -> Result<(), Box<dyn Error>> {
   7     let stdin = io::stdin();
   8     let mut stdout = io::BufWriter::new(io::stdout());
   9
  10     let mut upper = vec![];
  11     stdin.lock().for_byte_line_with_terminator(|line| {
  12         upper.clear();
  13         line.to_uppercase_into(&mut upper);
  14         stdout.write_all(&upper)?;
  15         Ok(true)
  16     })?;
  17     Ok(())
  18 }