# Struct termcolor::Buffer

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    pub struct Buffer(_);

Expand description

Write colored text to memory.

`Buffer` is a platform independent abstraction for printing colored text to an in memory buffer. When the buffer is printed using a `BufferWriter`, the color information will be applied to the output device (a tty on Unix and a console on Windows).

A `Buffer` is typically created by calling the `BufferWriter.buffer` method, which will take color preferences and the environment into account. However, buffers can also be manually created using `no_color`, `ansi` or `console` (on Windows).

## Implementations

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### impl Buffer

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#### pub fn no_color() -> Buffer ⓘNotable traits for Buffer `impl Write for Buffer`

Create a buffer that drops all color information.

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#### pub fn ansi() -> Buffer ⓘNotable traits for Buffer `impl Write for Buffer`

Create a buffer that uses ANSI escape sequences.

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#### pub fn is_empty(&self) -> bool

Returns true if and only if this buffer is empty.

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#### pub fn len(&self) -> usize

Returns the length of this buffer in bytes.

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#### pub fn clear(&mut self)

Clears this buffer.

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#### pub fn into_inner(self) -> Vec<u8>

Consume this buffer and return the underlying raw data.

On Windows, this unrecoverably drops all color information associated with the buffer.

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#### pub fn as_slice(&self) -> &[u8]ⓘNotable traits for &[u8]`impl Read for &[u8]impl Write for &mut [u8]`

Return the underlying data of the buffer.

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#### pub fn as_mut_slice(&mut self) -> &mut [u8]ⓘNotable traits for &[u8]`impl Read for &[u8]impl Write for &mut [u8]`

Return the underlying data of the buffer as a mutable slice.

## Trait Implementations

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### impl Write for Buffer

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

Write a buffer into this writer, returning how many bytes were written. Read more

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

Flush this output stream, ensuring that all intermediately buffered contents reach their destination. Read more

1.36.0 · source

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

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

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#### fn is_write_vectored(&self) -> bool

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

Determines if this `Write`r has an efficient `write_vectored` implementation. Read more

1.0.0 · source

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

Attempts to write an entire buffer into this writer. Read more

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#### 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. Read more

1.0.0 · source

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

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

1.0.0 · source

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

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

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### impl WriteColor for Buffer

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#### fn supports_color(&self) -> bool

Returns true if and only if the underlying writer supports colors.

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#### fn set_color(&mut self, spec: &ColorSpec) -> Result<()>

Set the color settings of the writer. Read more

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#### fn reset(&mut self) -> Result<()>

Reset the current color settings to their original settings. Read more

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#### fn is_synchronous(&self) -> bool

Returns true if and only if the underlying writer must synchronously interact with an end user’s device in order to control colors. By default, this always returns `false`. Read more

## Auto Trait Implementations

### impl RefUnwindSafe for Buffer

### impl Send for Buffer

### impl Sync for Buffer

### impl Unpin for Buffer

### impl UnwindSafe for Buffer

## Blanket Implementations

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### impl<T> Any for T where
T: 'static + ?Sized,

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#### fn type_id(&self) -> TypeId

Gets the `TypeId` of `self`. Read more

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### impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

#### fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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### impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

#### fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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### impl<T> From<T> for T

const: unstable · source

#### fn from(t: T) -> T

Returns the argument unchanged.

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### impl<T, U> Into<U> for T where
U: From<T>,

const: unstable · source

#### fn into(self) -> U

Calls `U::from(self)`.

That is, this conversion is whatever the implementation of `From<T> for U` chooses to do.

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### impl<T, U> TryFrom<U> for T where
U: Into<T>,

#### type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

#### fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

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### impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

#### type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

const: unstable · source

#### fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.