| Allegro CL version 8.2 Unrevised from 8.1 to 8.2. 8.1 version |
Arguments: stream
This function checks stream, which must be either
a character stream or a simple-stream, for the unicode byte-order
marker and returns two values. The first returned value is either the
:unicode
external-format (if the unicode byte-order
marker is found) or the stream's current external-format (if the
unicode byte-order marker is not found).
The second returned value is a boolean indicating whether the first returned value is the stream's current external-format (which it always is when the unicode byte-order marker is not found and may or may not be when the unicode byte-order marker is found).
This function operates by using peek-char on the stream. The file-position for the stream remains unchanged after calling sniff-for-unicode.
See The unicode and fat External-Format Types in iacl.htm for information on the unicode external format and iacl.htm in general for information on international character support in Allegro CL.
Copyright (c) 1998-2016, Franz Inc. Oakland, CA., USA. All rights reserved.
This page was not revised from the 8.1 page.
Created 2010.1.21.
| Allegro CL version 8.2 Unrevised from 8.1 to 8.2. 8.1 version |