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AutoGen provides a means for redirecting the template output to different
files or, in ‘M4’ parlance, to various diversions. It is accomplished
by providing a set of Scheme functions named
(see section AutoGen Scheme Functions).
This allows you to logically "push" output files onto a stack.
If you supply a string name, then a file by that name is created
to hold the output. If you do not supply a name, then the text is
written to a scratch pad and retrieved by passing a
out-pop (see section ‘out-pop’ - close current output file) function.
This function closes the current output file and resumes output to the next
one in the stack. At least one output must have been pushed onto the output
stack with the
out-push-new (see section ‘out-push-new’ - purge and create output file) function. If
#t is passed in as an argument, then the entire contents of the
diversion (or file) is returned.
This function does not close the current output, but instead sets it aside
for resumption by the given name with
out-resume. The current output
must have been pushed on the output queue with
(see section ‘out-push-new’ - purge and create output file).
This will put a named file descriptor back onto the top of stack so that it becomes the current output again.
This closes the current output and creates a new file, purging any preexisting one. This is a shortcut for "pop" followed by "push", but this can also be done at the base level.
Renames the current output file without closing it.
There are also several functions for determining the output status. See section AutoGen Scheme Functions.
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