core/org.gnit.lucenekmp.jdkport/Reader

Reader

abstract class Reader : Readable, AutoCloseable

A minimal multiplatform abstraction for reading characters. This class mimics many of the core methods of java.io.Reader, but only those that you really need.

Inheritors

BufferedReader

InputStreamReader

KIOSourceBufferedReader

Constructors

Reader

constructor()

Types

Companion

object Companion

Functions

abstract override fun close()

Closes the reader and releases any associated resources.

read

open fun read(): Int

Reads a single character.

open override fun read(target: CharBuffer): Int

Reads characters into a CharBuffer. This default implementation reads into an array and then puts the characters into the buffer.

abstract fun read(cbuf: CharArray, off: Int, len: Int): Int

Reads up to len characters into cbuf starting at offset off. Returns the number of characters read, or -1 if the end of the stream is reached.

ready

open fun ready(): Boolean

Tells whether this stream is ready to be read.

reset

open fun reset()

Resets the stream. If the stream has been marked, then attempt to reposition it at the mark. If the stream has not been marked, then attempt to reset it in some way appropriate to the particular stream, for example by repositioning it to its starting point. Not all character-input streams support the reset() operation, and some support reset() without supporting mark().

transferTo

open fun transferTo(out: Writer): Long

Reads all characters from this Reader and writes them to out. Returns the number of characters transferred.