[Gramps-devel] Date format in XML - I think I have something that will work

[Don A. <dal...@us...>]

I think I've come up with something what will work pretty good for dates
in the XML file. I liked the ISO concept, yet it has the flaw of
requiring a year, which is not always available in genealogy.

So, I have a slight modification. The format is of YYYY-MM-DD, but a
single question mark is used as a placeholder for an unknown year or
month.

All stored dates use the gregorial calendar, but a display preference
can be specified.

# basic date
<dateval start="2001-05-15"/>   

# date range
<dateval start="2001-05-15" stop="2001-06-15"/>

# unknown year
<dateval start="?-05-15"/>

# unknown month
<dateval start="2001-?-15"/>

# unknown day
<dateval start="2001-05"/>

# preferred calendar (1=julian, 2=hebrew, 3=french)
<dateval start="2001-05-15" dpref="1"/>

# text string
<datestr val="Summer"/>

-- 
Don Allingham
dal...@us...

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