Case-insensitive formats for Data.Time.Format?

[Bjorn Buckwalter]

Hello all,

Is there a compelling reason to not make the formats in Data.Time.Format 
case-insensitive when parsing? This would apply to the months, weekdays, time 
zone. (I see there are already two formats %p and %P corresponding (confusingly) 
to AM/PM and am/pm respectively.)

What got me thinking about this is that I'm being supplied with dates on the 
format "26 DEC" which will not parse without munging. I suspect such situations 
are fairly common?

Also, is there a way to have the parser assume a century of 20 with the 
format %y?

Thanks,
Bjorn