Stream API Functions

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This document lists most useful (and most often needed) functions. Be aware, that there are many more to be found in either the class references or via the builtin class browser.

Reference: Stream and ExternalStream and Socket

Back to Useful API Functions

Creation

Internal Streams
aCollection readStream

aCollection writeStream
External Streams
pathString asFilename readStream

pathString asFilename writeStream

pathString asFilename appendingWriteStream

Socket newTCPclientToHost:hostNameOrAddress port:aPortOrServiceName

Reading

next

Returns the next element from the stream. 

aStream next

aStream.next() [JS]

Example: 

 s := 'data.txt' asFilename readStream.
 s next.
 => character
nextByte

Returns the next character as a byte valued integer. Only valid for character streams.

Writing

nextPut:

Appends (writes) an element to the stream. 

aStream nextPut: someElement

aStream.nextPut(someElement) [JS]

Example: 

 s := 'data.txt' asFilename writeStream.
 s nextPut: $a.
 s nextPut: $b.
 s close.
nextPutByte:

Appends a byte valued integer to the stream. Only valid for character streams.


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