1.157.13 Stream: positioning

isPositionable

Answer true if the stream supports moving backwards with #skip:.

skip: anInteger

Move the position forwards by anInteger places

skipSeparators

Advance the receiver until we find a character that is not a separator. Answer false if we reach the end of the stream, else answer true; in this case, sending #next will return the first non-separator character (possibly the same to which the stream pointed before #skipSeparators was sent).

skipTo: anObject

Move the current position to after the next occurrence of anObject and return true if anObject was found. If anObject doesn’t exist, the pointer is atEnd, and false is returned.

skipToAll: aCollection

If there is a sequence of objects remaining in the stream that is equal to the sequence in aCollection, set the stream position just past that sequence and answer true. Else, set the stream position to its end and answer false.