On 13-Oct-01, Brock & Janet wrote: > Should the date? function return false if an invalid date is > entered?
> For example, when entering (YYYY-MM-DD); >>> date? 2001-12-25 > == true > So you would think that a False would be returned if a date was > incorrect, however, unexpectedly; >>> date? 2001-13-25 > ** Syntax Error: Invalid date -- 2001-13-25 > ** Near: (line 1) date? 2001-13-25 > Since date? doesn't return a false but a Syntax Error. When I try > the following I would expect it to gracefully allow me to enter an > invalid date and allow me to write code around it to correct it. >>> if error? try [ date? 2001-13-25] [print "An invalid date was >>> entered"] > ** Syntax Error: Invalid date -- 2001-13-25 > ** Near: (line 1) error? try [ date? 2001-13-25] > Any thoughts? I'd think the error occurs because it's an invalid datatype, same as entering... >> 100s ** Syntax Error: Invalid integer -- 100s is invalid. When a script's running though, any dates entered would probably start out as a string, so just check for an error when converting it to a date... >> if error? try [to-date "2001-13-25"][print "Date error!"] Date error! -- Carl Read -- To unsubscribe from this list, please send an email to [EMAIL PROTECTED] with "unsubscribe" in the subject, without the quotes.
