Generic Function

Summary

Used by the pretty printer to determine the output width when *print-right-margin* is nil.

Package

stream

Signature

stream-output-width stream => result

Arguments

stream

A stream.

Values

result

An integer or nil.

Description

The generic function stream-output-width is used by the pretty printer to determine the output width when *print-right-margin* is nil. It returns result, the integer width of stream in units of ems, or nil if the width is not known. The default method provided by fundamental-stream returns nil.

See also

fundamental-stream