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-rw-r--r--vendor/bstr/examples/graphemes.rs22
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(())
+}