begin of a parser

1 files changed, 30 insertions, 0 deletions

diff --git a/src/raw.rs b/src/raw.rs
new file mode 100644
index 0000000..e116620
--- /dev/null
+++ b/src/raw.rs
@@ -0,0 +1,30 @@
+use termios::*;
+
+/// can toggle raw mode on a fd, at the latest disables it when it gets dropped
+pub struct ScopedRawMode {
+    fd: i32,
+    settings: Termios,
+}
+
+impl Drop for ScopedRawMode {
+    fn drop(&mut self) {
+        self.disable();
+    }
+}
+
+impl ScopedRawMode {
+    pub fn on_fd(fd: i32) -> Self {
+        let settings = Termios::from_fd(fd).unwrap();
+        Self { fd, settings }
+    }
+
+    pub fn enable(&self) {
+        let mut settings = self.settings.clone();
+        cfmakeraw(&mut settings);
+        tcsetattr(self.fd, TCSANOW, &settings).unwrap();
+    }
+
+    pub fn disable(&self) {
+        tcsetattr(self.fd, TCSANOW, &self.settings).unwrap();
+    }
+}