From:	Kevin Ashley <k DOT ashley AT ulcc DOT ac DOT uk>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Converting an ascii time to time_t
Date:	Wed, 22 Nov 2000 17:12:41 +0000
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References:	<j05n0t8b87cjho4ul7pdfkpd2th4u6pg78 AT 4ax DOT com>
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To:	djgpp AT delorie DOT com
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Damian Yerrick wrote:
> 
> How can a DJGPP program convert two different time formats to time_t,
> using POSIX functions?
> 
> The first source gives "Was last logged in: Fri Nov 10 2000"
> The second source gives "2000-05-14"

For many years I've used some code snarfed from innlib to do this.
parsedate.y is a simple yacc routine which parses a variety of date/time
formats. It also handles exotica like "last month" and "next wednesday"
which make it very suitable for handling human date input.

For my local use, I modified it slightly to add a reduction for ISO date
formats (the second one you give above) and to modify the rules for
ambiguous all-numeric dates to prefer general custom to US custom (i.e.
assume dd/mm/yy rather than mm/dd/yy). It also needed a couple of #ifdef's
to allow it to be built alone, rather than requiring a raft of header files
from the rest of INN to build.

If you can't locate it yourself, drop me email and I'll send you my modified
copy.   

------------------------------------------------------------------------------
Kevin Ashley                                       K DOT Ashley AT Ulcc DOT ac DOT uk
Digital Preservation Manager             http://www.ulcc.ac.uk/staff/Kevin+Ashley
ULCC                        ...ukc!ncdlab!K.Ashley (but probably not any more)
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