Failing to parse Micro units

[JenTechSystems]

Hi there,

I have a weird situation where I pass in what I think is the correct abbreviation for a Micro scale unit, but it fails.

Here is the unit test:

    [Test]
    public void GetAllElectricalPotentialAbbreviations()
    {
        UnitSystem usUnits = UnitSystem.GetCached(GetCulture("en-US"));

        var abbreviations = usUnits.GetAllAbbreviations(ElectricPotentialUnit.Microvolt);
        Assert.AreEqual("μV", abbreviations[0]);
        Assert.AreEqual("µV", abbreviations[0]);
        Assert.AreEqual("μV", "µV");
    }

Here is the result, which fails on the second assertion:

String lengths are both 2. Strings differ at index 0.
Expected: "µV"
But was: "μV"
-----------^

It seems like this WYSIWYG editor makes the differences in the encoding more visually obvious.

In fact, none of the editors i have used so far (include Visual Studio) have made a distinction between the two characters.

But how do i correctly deal with this difference programmatically?

[JenTechSystems]

Turns out this is due to different encoding being used.

Someone on stackoverflow answered this for me.
[See here: http://stackoverflow.com/questions/41929158/c-sharp-two-strings-visually-the-same-yet-they-are-not-equal-nor-equivalent?noredirect=1#comment71039106_41929158]

I have now discovered that Units.Net seems to be using the lowercase Greek letter 'μ' (U+03BC) instead of the correct Unicode character for the Micro Sign (U+00B5) 'µ', at least for the case of ElectricalPotential...but not for Duration.

    [Test]
    public void ParseMicroUnitAbbreviation()
    {
        var dMicroUnit = Duration.ParseUnit("\u00b5s"); // This parses correctly
        Assert.AreEqual(DurationUnit.Microsecond, dMicroUnit);

        var epGreekLetter = ElectricPotential.ParseUnit("\u03bcV"); // This SHOULD throw an exception
        Assert.AreEqual(ElectricPotentialUnit.Microvolt, epGreekLetter);

        var epMicroUnit = ElectricPotential.ParseUnit("\u00b5V"); // This should pass!
        Assert.AreEqual(ElectricPotentialUnit.Microvolt, epMicroUnit);

        var dGreekLetter = Duration.ParseUnit("\u03bcs"); // This righly throws an exception
        Assert.AreEqual(DurationUnit.Microsecond, dGreekLetter);
    }

I think it would be prudent to investigate every Unit and ensure each one is using the correct Unicode character when attempting to parse out the Micro sign abbreviation.

Can someone please confirm my findings?

[angularsen]

Huh, nice find. I was not aware of this duality. I assume a search and replace is in order, to get all units to use the correct symbol.
Could you do the PR?

[angularsen]

Both json files and ps1 files, since prefixes are defined in powershell.

[angularsen]

Closing this, conversation continues in PR #224