All Manuals > LispWorks® User Guide and Reference Manual > 46 The STREAM Package

stream-advance-to-column Generic Function

Summary

Writes the required number of blank spaces to ensure that the next character will be written in a given column.

Package

stream

Signature

stream-advance-to-column stream column => result

Arguments
stream
A stream.
column
An integer.
Values
result
A boolean.
Description

The generic function stream-advance-to-column writes enough blank spaces to stream to ensure that the next character is written at column. The generic function returns t if the operation is successful, or nil if it is not supported for this stream.

This function is intended for use by print and format ~t. The default method uses stream-line-column and repeated calls to stream-write-char with a #\Space character, and returns nil if stream-line-column returns nil.

See also

stream-line-column


LispWorks® User Guide and Reference Manual - 01 Dec 2021 19:31:01