diff options
Diffstat (limited to 'vendor/bstr/examples/graphemes.rs')
-rw-r--r-- | vendor/bstr/examples/graphemes.rs | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/vendor/bstr/examples/graphemes.rs b/vendor/bstr/examples/graphemes.rs new file mode 100644 index 0000000..6adc701 --- /dev/null +++ b/vendor/bstr/examples/graphemes.rs @@ -0,0 +1,22 @@ +use std::error::Error; +use std::io::{self, Write}; + +use bstr::{io::BufReadExt, ByteSlice}; + +fn main() -> Result<(), Box<dyn Error>> { + let stdin = io::stdin(); + let mut stdout = io::BufWriter::new(io::stdout()); + + stdin.lock().for_byte_line_with_terminator(|line| { + let end = line + .grapheme_indices() + .map(|(_, end, _)| end) + .take(10) + .last() + .unwrap_or(line.len()); + stdout.write_all(line[..end].trim_end())?; + stdout.write_all(b"\n")?; + Ok(true) + })?; + Ok(()) +} |