1998-08-10 19:42:37 +00:00
										 
									 
								 
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								\section{\module{whichdb} ---
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								         Guess which DBM-style module created a given database.}
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											1998-07-23 17:59:49 +00:00
										 
									 
								 
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								\declaremodule{standard}{whichdb}
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								\modulesynopsis{Guess which DBM-style module created a given database.}
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											1997-04-03 22:41:49 +00:00
										 
									 
								 
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								The single function in this module attempts to guess which of the
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								several simple database modules available--dbm, gdbm, or
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								dbhash--should be used to open a given file.
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								\begin{funcdesc}{whichdb}{filename}
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								Returns one of the following values: \code{None} if the file can't be
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								opened because it's unreadable or doesn't exist; the empty string
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								(\code{""}) if the file's format can't be guessed; or a string
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								containing the required module name, such as \code{"dbm"} or
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								\code{"gdbm"}.
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								\end{funcdesc}
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