Day and month name constants are defined in numerous places. This
pulls them together into a single place and eliminates the
duplication. It also ensures they are `constexpr`.
Also use the daylight global to determine the current time zone name,
i.e. tzname[0] is standard time, tzname[1] is daylight savings time.
Note that altzone isn't required to be defined on all systems, so we
have to #ifdef to check if it exists in order for Lagom to build.
There's no need to allocate a String for these. Note the "string"
parameter of DateTime::parse is left as a String for now; the parser is
currently using strtol which needs a NUL-terminated string. This method
can likely be rewritten with GenericLexer.
This formats the time zone name. This is now used in the default format
string because DateTime is meant to represent local time; it only makes
sense to include the time zone by default now that we support non-UTC.
DateTime can now be parsed from a string. Implements the same formatters
as strptime: https://linux.die.net/man/3/strptime (Well, some of them at
least).
SPDX License Identifiers are a more compact / standardized
way of representing file license information.
See: https://spdx.dev/resources/use/#identifiers
This was done with the `ambr` search and replace tool.
ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
