format_datetime

<p>Provides 'SAS'-compatible date, time, and datetime formatting capabilities.
Built-in 'SAS' format names (DATE9., MMDDYY10., TIME8., DATETIME20., etc.)
are auto-resolved and can be used directly with <code>fput</code>,
<code>fputn</code>, and <code>fputc</code>.</p>

internal

Provides 'SAS' 'PROC FORMAT'-like functionality for creating and applying
value formats in R. Supports mapping values to labels, range-based formatting,
reverse formatting (invalue), and proper handling of missing values (NA, NULL, NaN).

Vladimir Larchenko

format_datetime: Date/Time Format Support ('SAS'-style)

Description

Arguments