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ANSI Common Lisp  25 Environment 25.2 Dictionary of Environment
- Syntax:
-
dribble
&optional pathname
 implementation-dependent
- Arguments and Values:
-
pathname - a pathname designator.
- Description:
-
Either binds *standard-input* and *standard-output*
or takes other appropriate action,
so as to send a record of the input/output interaction to a file
named by pathname. dribble is intended to create
a readable record of an interactive session.
If pathname is a logical pathname, it is translated
into a physical pathname as if by calling translate-logical-pathname.
(dribble) terminates the recording of input and output
and closes the dribble file.
If dribble is called while a stream to a "dribble file"
is still open from a previous call to dribble,
the effect is implementation-defined. For example,
the already-open stream might be closed,
or dribbling might occur both to the old stream and to a new one,
or the old stream might stay open but not receive any further output,
or the new request might be ignored,
or some other action might be taken.
- Affected By:
-
The implementation.
- Exceptional Situations:
-
If a failure occurs when performing some operation on the file system
while creating the dribble file,
an error of type file-error is signaled.
An error of type file-error might be signaled if pathname
is a designator for a wild pathname.
- See Also:
-
Section 19.1.2 Pathnames as Filenames
- Notes:
-
dribble can return before subsequent
forms are executed. It also
can enter a recursive interaction loop,
returning only when (dribble) is done.
dribble is intended primarily for interactive debugging;
its effect cannot be relied upon when used in a program.
- Allegro CL Implementation Details:
-
If dribbling is in effect and dribble is called with a pathname argument (as if to start another dribble),
the first dribble is closed and then the second one started.
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