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Mathematica > Core Language > String Manipulation > String Patterns >

Mathematica > Core Language > Rules & Patterns > Patterns > String Patterns >

Built-in Mathematica Symbol

DatePattern

DatePattern[{"e₁", "e₂", ...}]
represents the characters of a date with elements of type "e_i" in StringExpression.

DatePattern[{"e₁", "e₂", ...}, sep]
allows separators that match the string expression sep.

Possible element types "e_i" are: "Year", "Quarter", "Month", "MonthName", "Day", "DayName", "Hour", "AMPM", "Minute", "Second".

If no explicit separator is specified, the "e_i" must be separated by /, -, : or . characters.

Compare a string to a list of date elements:

Compare to a list of time elements:

Compare to a pattern with all separators explicitly given:

Compare a string to a list of date elements:

Compare to a list of time elements:

Compare to a pattern with all separators explicitly given:

Date elements do not match out-of-range values:

Test a string allowing only "/" characters as separators:

Test the same string allowing only colon separators:

Define a function only for month, year strings:

The function returns unevaluated for other input patterns:

DateString gives results that match a date pattern: