iText 5
iText 5
Breadcrumbs

PushbackReader

PushbackReader Public class

Description

A character-stream reader that allows characters to be pushed back into the stream.

@author Mark Reinhold @since JDK1.1

Diagram

flowchart LR classDef interfaceStyle stroke-dasharray: 5 5; classDef abstractStyle stroke-width:4px subgraph iTextSharp.xmp.impl iTextSharp.xmp.impl.PushbackReader[[PushbackReader]] iTextSharp.xmp.impl.FilterReader[[FilterReader]] class iTextSharp.xmp.impl.FilterReader abstractStyle; end iTextSharp.xmp.impl.FilterReader --> iTextSharp.xmp.impl.PushbackReader

Members

Methods

Public methods

Returns

Name

void

Close

()
Closes the stream and releases any system resources associated with
it. Once the stream has been closed, further read(),
unread(), ready(), or skip() invocations will throw an IOException.
Closing a previously closed stream has no effect.

int

Read

(...)
Reads a single character.

void

Unread

(...)
Pushes back a single character by copying it to the front of the
pushback buffer. After this method returns, the next character to be read
will have the value ...

Details

Summary

A character-stream reader that allows characters to be pushed back into the stream.

@author Mark Reinhold @since JDK1.1

Inheritance

Constructors

PushbackReader [1/2]

Source code

public PushbackReader(TextReader inp, int size)

Arguments

Type

Name

Description

TextReader

inp

int

size
PushbackReader [2/2]

Source code

public PushbackReader(TextReader inp)

Arguments

Type

Name

Description

TextReader

inp
Summary

Creates a new pushback reader with a one-character pushback buffer.

Methods

Read [1/2]

Source code

public override int Read()

Summary

Reads a single character.

Returns

The character read, or -1 if the end of the stream has been reached

Exceptions

Name

Description

IOException

If an I/O error occurs
Read [2/2]

Source code

public override int Read(char[] cbuf, int off, int len)

Arguments

Type

Name

Description

char``[]

cbuf

Destination buffer

int

off

Offset at which to start writing characters

int

len

Maximum number of characters to read
Summary

Reads characters into a portion of an array.

Returns

The number of characters read, or -1 if the end of the stream has been reached

Exceptions

Name

Description

IOException

If an I/O error occurs
Unread [1/3]

Source code

public virtual void Unread(int c)

Arguments

Type

Name

Description

int

c

The int value representing a character to be pushed back
Summary

Pushes back a single character by copying it to the front of the pushback buffer. After this method returns, the next character to be read will have the value

(char)c

Exceptions

Name

Description

IOException

If the pushback buffer is full,
or if some other I/O error occurs
Unread [2/3]

Source code

public virtual void Unread(char[] cbuf, int off, int len)

Arguments

Type

Name

Description

char``[]

cbuf

Character array

int

off

Offset of first character to push back

int

len

Number of characters to push back
Summary

Pushes back a portion of an array of characters by copying it to the front of the pushback buffer. After this method returns, the next character to be read will have the value

cbuf[off]

, the character after that will have the value

cbuf[off+1]

Exceptions

Name

Description

IOException

If there is insufficient room in the pushback
buffer, or if some other I/O error occurs
Unread [3/3]

Source code

public virtual void Unread(char[] cbuf)

Arguments

Type

Name

Description

char``[]

cbuf

Character array to push back
Summary

Pushes back an array of characters by copying it to the front of the pushback buffer. After this method returns, the next character to be read will have the value

cbuf[0]

, the character after that will have the value

cbuf[1]

Exceptions

Name

Description

IOException

If there is insufficient room in the pushback
buffer, or if some other I/O error occurs
Close

Source code

public override void Close()

Summary

Closes the stream and releases any system resources associated with it. Once the stream has been closed, further read(), unread(), ready(), or skip() invocations will throw an IOException. Closing a previously closed stream has no effect.

Exceptions

Name

Description

IOException

If an I/O error occurs

Generated with ModularDoc