date

• infos = Information about the date plugin is in keys below
• infos/author = Thomas Waser thomas.waser@libelektra.org
• infos/licence = BSD
• infos/needs =
• infos/provides =
• infos/recommends =
• infos/placements = presetstorage postgetstorage
• infos/status = recommended productive maintained reviewed conformant compatible coverage specific unittest tested libc final
• infos/metadata = check/date check/date/format
• infos/description = validates date and time strings

Installation

See installation. The package is called libelektra5-extra.

Validation options

The following representation standards of dates and times are currently supported and can be use by setting check/date to:

• POSIX

  see STRPTIME(3) for more information. A valid format has to be specified in check/date/format

• ISO8601

  see ISO8601. Possible format strings specified in check/date/format, default: datetime complete+truncated:

  • Dates/Time:

    • Date:

      • calendardate calendar dates: day of month - month - year.

      • weekdate calendar week and day numbers, e.g. YYYY-Www-D

      • ordinaldate year + day of the year

      • date calendardate, weekdate, and ordinaldate combined

    • Time:

      • timeofday 24-hour timekeeyping system

      • utc coordinates universal time. either by appending a time-zone designator or the time difference to UTC to timeofday

    • Combined: datetime combination of Dates and Time according to th ISO8601 specification.

  • Representation: if no representation is specified, complete+reduced+truncated is used as default.

    • complete complete representation, dates are separated by hyphens, times by colon, e.g. YYYY-MM-DD or hh:mm:ss

    • reduced reduced precision, e.g. YYYY-MM, or hh

    • truncated truncated representation, hyphens used to indicate omitted components, e.g. --MM-DD or --ss

    • complete+reduced+truncated allow all 3 representations

    • complete+reduced allow only complete + reduced representation

    • complete+truncated allow only complete + truncated representation

    • reduced+truncated allow only reduced + truncated representation.

  • Format: if no format is specified both basic and extended are treated as valid.

    • basic no separating character between individual components of a date, time or datetime expression.

    • extended separating characters between components. date components separated by hyphen, time components by colon.

• RFC2822

  a set of possible format strings derived from rfc2822 3.3, no format string needed.

Dependencies

POSIX.1-2001

Examples

TBD

Limitations

Testing timezone designators currently only works with glibc. Unit tests using timezone designators are locale dependent.