Struct PagerWriter 

pub struct PagerWriter { /* private fields */ }

Manages output to pager process

Note: Debug is not derived because Child and ChildStdin don’t implement Debug. For test assertions, use assert!(result.is_err()) pattern instead of unwrap_err().

Implementations

impl PagerWriter

pub fn spawn(command: &str) -> Result<Self>

Spawn pager process using shlex for proper argument parsing

Errors

Returns an error if:

• The command syntax is invalid
• The pager executable cannot be found
• The pager process fails to spawn

Panics

Panics if the parsed command unexpectedly contains no program.

pub fn write(&mut self, content: &str) -> Result<()>

Write content to pager

Errors

Returns an error if writing to the pager’s stdin fails.

pub fn wait(self) -> Result<ExitStatus>

Wait for pager to exit, returning the exit status

Errors

Returns an error if waiting for the pager process fails.

Trait Implementations

impl Write for PagerWriter

fn write(&mut self, buf: &[u8]) -> Result<usize>

Writes a buffer into this writer, returning how many bytes were written.

fn flush(&mut self) -> Result<()>

Flushes this output stream, ensuring that all intermediately buffered contents reach their destination.

fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> Result<usize, Error>

Like write, except that it writes from a slice of buffers.

fn is_write_vectored(&self) -> bool

🔬This is a nightly-only experimental API. (can_vector)

Determines if this Writer has an efficient write_vectored implementation.

fn write_all(&mut self, buf: &[u8]) -> Result<(), Error>

Attempts to write an entire buffer into this writer.

fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<(), Error>

🔬This is a nightly-only experimental API. (write_all_vectored)

Attempts to write multiple buffers into this writer.

fn write_fmt(&mut self, args: Arguments<'_>) -> Result<(), Error>

Writes a formatted string into this writer, returning any error encountered.

fn by_ref(&mut self) -> &mut Self

where Self: Sized,

Creates a “by reference” adapter for this instance of Write.