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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /vendor/bstr/examples/graphemes.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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 000000000..6adc7019d --- /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(()) +} |