parse_dttm_fmt: Parse a date/time format

In sdtm.oak: SDTM Data Transformation Engine

Parse a date/time format

Description

parse_dttm_fmt() parses a date/time formats, meaning it will try to parse the components of the format fmt that refer to date/time components. parse_dttm_fmt_() is similar to parse_dttm_fmt() but is not vectorized over fmt.

Usage

parse_dttm_fmt_(fmt, pattern)

parse_dttm_fmt(fmt, patterns = fmt_cmp())

Arguments

fmt	A format string (scalar) to be parsed by patterns.
pattern, patterns	A string (in the case of pattern), or a character vector (in the case of patterns) of regexps for each of the individual date/time components. Default value is that of fmt_cmp(). Use this function if you plan on passing a different set of patterns.

Value

A tibble of seven columns:

• fmt_c: date/time format component. Values are either "year", "mon", "mday", "hour", "min", "sec", or NA.

• pat: Regexp used to parse the date/time component.

• cap: The captured substring from the format.

• start: Start position in the format string for this capture.

• end: End position in the format string for this capture.

• len: Length of the capture (number of chars).

• ord: Ordinal of this date/time component in the format string.

Each row is for either a date/time format component or a "delimiter" string or pattern in-between format components.

sdtm.oak documentation built on June 9, 2025, 5:10 p.m.