initial commit [141.14.140.180,mike]

2026-07-27 16:14:41 +02:00
commit 917a3d41ac
18 changed files with 3587 additions and 0 deletions
@@ -0,0 +1,108 @@
+package main
+
+import (
+	"math"
+
+	"github.com/shopspring/decimal"
+)
+
+var unitRegistry = make(map[string]UnitInfo)
+
+func d(f float64) decimal.Decimal {
+	return decimal.NewFromFloat(f)
+}
+
+// initUnits populates the unitRegistry with supported units.
+func initUnits() {
+	// Length (Pivot: meter)
+	unitRegistry["M"] = UnitInfo{d(1.0), DimLength, "m"}
+	unitRegistry["DM"] = UnitInfo{d(0.1), DimLength, "dm"}
+	unitRegistry["CM"] = UnitInfo{d(0.01), DimLength, "cm"}
+	unitRegistry["MM"] = UnitInfo{d(0.001), DimLength, "mm"}
+	unitRegistry["UM"] = UnitInfo{d(1e-6), DimLength, "um"}
+	unitRegistry["NM"] = UnitInfo{d(1e-9), DimLength, "nm"}
+	unitRegistry["KM"] = UnitInfo{d(1000.0), DimLength, "km"}
+	unitRegistry["IN"] = UnitInfo{d(0.0254), DimLength, "in"}
+	unitRegistry["FT"] = UnitInfo{d(0.3048), DimLength, "ft"}
+	unitRegistry["YD"] = UnitInfo{d(0.9144), DimLength, "yd"}
+	unitRegistry["MI"] = UnitInfo{d(1609.344), DimLength, "mi"}
+	unitRegistry["NMI"] = UnitInfo{d(1852.0), DimLength, "nmi"}
+
+	// Mass (Pivot: gram)
+	unitRegistry["G"] = UnitInfo{d(1.0), DimMass, "g"}
+	unitRegistry["MG"] = UnitInfo{d(0.001), DimMass, "mg"}
+	unitRegistry["KG"] = UnitInfo{d(1000.0), DimMass, "kg"}
+	unitRegistry["T"] = UnitInfo{d(1e6), DimMass, "t"}
+	unitRegistry["CT"] = UnitInfo{d(0.2), DimMass, "ct"}
+	unitRegistry["LB"] = UnitInfo{d(453.592), DimMass, "lb"}
+	unitRegistry["OZ"] = UnitInfo{d(28.3495), DimMass, "oz"}
+
+	// Time (Pivot: second)
+	unitRegistry["S"] = UnitInfo{d(1.0), DimTime, "s"}
+	unitRegistry["MS"] = UnitInfo{d(0.001), DimTime, "ms"}
+	unitRegistry["US"] = UnitInfo{d(1e-6), DimTime, "us"}
+	unitRegistry["NS"] = UnitInfo{d(1e-9), DimTime, "ns"}
+	unitRegistry["MIN"] = UnitInfo{d(60.0), DimTime, "min"}
+	unitRegistry["H"] = UnitInfo{d(3600.0), DimTime, "h"}
+	unitRegistry["D"] = UnitInfo{d(86400.0), DimTime, "d"}
+	unitRegistry["WK"] = UnitInfo{d(604800.0), DimTime, "wk"}
+	unitRegistry["YR"] = UnitInfo{d(31536000.0), DimTime, "yr"}
+
+	// Digital (Pivot: byte)
+	unitRegistry["B"] = UnitInfo{d(1.0), DimDigital, "B"}
+	unitRegistry["KB"] = UnitInfo{d(1024.0), DimDigital, "KB"}
+	unitRegistry["MB"] = UnitInfo{d(1024.0 * 1024.0), DimDigital, "MB"}
+	unitRegistry["GB"] = UnitInfo{d(1024.0 * 1024.0 * 1024.0), DimDigital, "GB"}
+	unitRegistry["TB"] = UnitInfo{d(1024.0 * 1024.0 * 1024.0 * 1024.0), DimDigital, "TB"}
+	unitRegistry["PB"] = UnitInfo{d(1024.0 * 1024.0 * 1024.0 * 1024.0 * 1024.0), DimDigital, "PB"}
+	unitRegistry["EB"] = UnitInfo{d(1024.0 * 1024.0 * 1024.0 * 1024.0 * 1024.0 * 1024.0), DimDigital, "EB"}
+
+	// Area (Pivot: square meter)
+	unitRegistry["M2"] = UnitInfo{d(1.0), DimArea, "m²"}
+	unitRegistry["CM2"] = UnitInfo{d(1e-4), DimArea, "cm²"}
+	unitRegistry["MM2"] = UnitInfo{d(1e-6), DimArea, "mm²"}
+	unitRegistry["KM2"] = UnitInfo{d(1e6), DimArea, "km²"}
+	unitRegistry["HA"] = UnitInfo{d(10000.0), DimArea, "ha"}
+	unitRegistry["ACRE"] = UnitInfo{d(4046.8564), DimArea, "acre"}
+
+	// Temperature (Pivot: Kelvin)
+	unitRegistry["K"] = UnitInfo{d(1.0), DimTemp, "K"}
+	unitRegistry["C"] = UnitInfo{d(1.0), DimTemp, "°C"}
+	unitRegistry["F"] = UnitInfo{d(1.0), DimTemp, "°F"}
+	unitRegistry["KELVIN"] = UnitInfo{d(1.0), DimTemp, "K"}
+	unitRegistry["CELSIUS"] = UnitInfo{d(1.0), DimTemp, "°C"}
+	unitRegistry["FAHRENHEIT"] = UnitInfo{d(1.0), DimTemp, "°F"}
+
+	// Angle (Pivot: Radian)
+	unitRegistry["RAD"] = UnitInfo{d(1.0), DimAngle, "rad"}
+	unitRegistry["DEG"] = UnitInfo{d(math.Pi / 180.0), DimAngle, "deg"}
+	unitRegistry["GRAD"] = UnitInfo{d(math.Pi / 200.0), DimAngle, "grad"}
+	unitRegistry["RADIAN"] = UnitInfo{d(1.0), DimAngle, "rad"}
+	unitRegistry["DEGREE"] = UnitInfo{d(math.Pi / 180.0), DimAngle, "deg"}
+	unitRegistry["DEGREES"] = UnitInfo{d(math.Pi / 180.0), DimAngle, "deg"}
+	unitRegistry["GRADIAN"] = UnitInfo{d(math.Pi / 200.0), DimAngle, "grad"}
+}
+
+// getDimName returns a human-readable string for a dimension.
+func getDimName(d Dimension) string {
+	switch d {
+	case DimCurrency:
+		return "Currency"
+	case DimLength:
+		return "Length"
+	case DimMass:
+		return "Mass"
+	case DimTime:
+		return "Time"
+	case DimDigital:
+		return "Digital Storage"
+	case DimArea:
+		return "Area"
+	case DimTemp:
+		return "Temperature"
+	case DimAngle:
+		return "Angle"
+	default:
+		return "Number"
+	}
+}