Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 39 insertions, 0 deletions

diff --git a/vendor/snap/examples/compress-escaped.rs b/vendor/snap/examples/compress-escaped.rs
new file mode 100644
index 000000000..6fc97e9ac
--- /dev/null
+++ b/vendor/snap/examples/compress-escaped.rs
@@ -0,0 +1,39 @@
+use std::env;
+use std::io::{self, Write};
+use std::process;
+
+fn main() {
+    let bytes = match env::args().nth(1) {
+        None => {
+            writeln!(&mut io::stderr(), "Usage: compress-escaped string")
+                .unwrap();
+            process::exit(1);
+        }
+        Some(arg) => arg.into_bytes(),
+    };
+    let compressed = frame_press(&bytes);
+    println!("{}", escape(&compressed));
+    println!("{}", escape(&frame_depress(&compressed)));
+}
+
+fn frame_press(bytes: &[u8]) -> Vec<u8> {
+    use snap::write;
+
+    let mut wtr = write::FrameEncoder::new(vec![]);
+    wtr.write_all(bytes).unwrap();
+    wtr.into_inner().unwrap()
+}
+
+fn frame_depress(bytes: &[u8]) -> Vec<u8> {
+    use snap::read;
+    use std::io::Read;
+
+    let mut buf = vec![];
+    read::FrameDecoder::new(bytes).read_to_end(&mut buf).unwrap();
+    buf
+}
+
+fn escape(bytes: &[u8]) -> String {
+    use std::ascii::escape_default;
+    bytes.iter().flat_map(|&b| escape_default(b)).map(|b| b as char).collect()
+}