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funkpower
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Python was never the house language here: the mw-* desktop surface it came
from is 39 bash scripts and was exactly one Python script, the one this was
extracted from. What it cost was distribution, a widget dependency that
needed pipx and a Python floor, and 24ms of interpreter startup before a line
of the program ran.
The port is verified rather than asserted. Both implementations were run over
199,446 day-records, 26 jurisdictions across 21 years, with every field of
every record required to match; the JSON, the iCalendar and 480 renderings of
the text output are identical too. examples/dump.rs is the harness.
What the type system actually buys, which is less than the usual claim and
more than nothing:
- Level is an ordered enum, strictest first, so reads as 'a is
stricter' and relaxed_to() is the one place a feast can lift a fast. No
rule can get the direction backwards.
- Date is a newtype over the Julian Day Number and JulianDate is a separate
type, so a civil date and an ecclesiastical one cannot be mixed up. That
confusion is the single most common way calendar code goes wrong.
- Octets is a newtype in the iCalendar folder, because the bug it replaced
counted characters against a limit RFC 5545 states in octets.
- Movables is a struct, not a map, so a mistyped key is a compile error
rather than a None at the far end of the program.
Of the six defects an adversarial review found in the Python, exactly one had
a shape a type system would have caught. The rest were logic, and the tests
came with them.
The menologion is compiled in with include_str!, so the binary answers on its
own: 930KB, no runtime, 1.2ms to start against Python's 36ms.
13 lines
699 B
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13 lines
699 B
Plaintext
The menologion in this directory — menologion.json — is covered by the GNU
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General Public License version 2, the same as the rest of this project. See
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the LICENSE file at the root.
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It was composed for this project from the common Byzantine tradition, in the
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standard English formulae. The tradition is nobody's property; the wording
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here is this project's contribution to it, and the licence asks only that
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what you build on it stays as free as what you were given.
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Supplementary sets fetched by `typikon --update-menaion` are NOT covered by
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this and are NOT distributed here. They belong to whoever published them; the
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fetcher puts a copy on your machine for your own use. See src/menaia.rs.
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