String to calendar date
cal = CL_dat_str2cal(str)
Decodes a string into a calendar date.
The input string must have the form: "year/month/day hours:minutes:seconds", or "year-month-day hours:minutes:seconds", or "year-month-day{T}hours:minutes:seconds" where {T} stands for the letter "T".
Space characters around "/", "-", ":", "T" are not significant.
The "hours:minutes:seconds" part may be omitted. If so, the {T} separator must also be omitted.
The calendar date is a column vector of 6 elements : [year; month; day; hours; minutes; seconds].
Note:
Nan is returned (all 6 elements) if the input string format is not valid.
Formatted calendar date (1xN)
Calendar date (6xN)
CNES - DCT/SB