[−][src]Struct fixed_width::Writer
A fixed width data writer. It writes data provided in iterators to any type that implements io::Write.
Example
Writing a Vec<String>
to a file:
extern crate fixed_width; use std::io::Write; use fixed_width::Writer; let data = vec![ "1234".to_string(), "5678".to_string(), ]; let mut wrtr = Writer::from_memory(); wrtr.write_iter(data.iter()); wrtr.flush();
Methods
impl<W> Writer<W> where
W: Write,
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W: Write,
pub fn from_writer(wrtr: W) -> Self
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Creates a new writer from any type that implements io::Write
pub fn from_buffer(buf: BufWriter<W>) -> Self
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Creates a new writer from a io::BufWriter that wraps a type that implements io::Write
pub fn write_serialized<T: FixedWidth + Serialize>(
&mut self,
records: impl Iterator<Item = T>
) -> Result<()>
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&mut self,
records: impl Iterator<Item = T>
) -> Result<()>
Writes the given iterator of FixedWidth + Serialize
types to the underlying writer,
optionally inserting linebreaks if specified.
pub fn write_iter<T: AsByteSlice>(
&mut self,
records: impl Iterator<Item = T>
) -> Result<()>
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&mut self,
records: impl Iterator<Item = T>
) -> Result<()>
Writes the given iterator of types that implement AsByteSlice to the underlying writer, optionally inserting linebreaks if specified.
pub fn write_linebreak(&mut self) -> Result<()>
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Writes the linebreak specified to the underlying writer. Does nothing if there is no linebreak.
pub fn linebreak(self, linebreak: LineBreak) -> Self
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Sets the linebreak desired for this data. Defaults to LineBreak::None
.
impl Writer<Vec<u8>>
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pub fn from_memory() -> Self
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Creates a new writer in memory from a Vec<u8>
.
Trait Implementations
impl Into<Vec<u8>> for Writer<Vec<u8>>
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fn into(self) -> Vec<u8>
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Converts the writer into a Vec<u8>
, but panics if unable to flush to the underlying
writer.
impl Into<String> for Writer<Vec<u8>>
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fn into(self) -> String
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Converts the writer into a String
, but panics if unable to flush to the underlying
impl<W> Write for Writer<W> where
W: Write,
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W: Write,
fn write(&mut self, buf: &[u8]) -> Result<usize>
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Writes a buffer into the underlying writer.
fn flush(&mut self) -> Result<()>
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flushes the underlying writer.
fn write_all(&mut self, buf: &[u8]) -> Result<(), Error>
1.0.0[src]
Attempts to write an entire buffer into this writer. Read more
fn write_fmt(&mut self, fmt: Arguments) -> Result<(), Error>
1.0.0[src]
Writes a formatted string into this writer, returning any error encountered. Read more
fn by_ref(&mut self) -> &mut Self
1.0.0[src]
Creates a "by reference" adaptor for this instance of Write
. Read more
Auto Trait Implementations
Blanket Implementations
impl<T> From for T
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impl<T, U> Into for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryFrom for T where
U: Into<T>,
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U: Into<T>,
type Error = !
try_from
)The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T> Borrow for T where
T: ?Sized,
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T: ?Sized,
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> BorrowMut for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T, U> TryInto for T where
U: TryFrom<T>,
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U: TryFrom<T>,