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Q: any API doc? how to skip empty field in csvReader? #358

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mw66 opened this issue Jun 6, 2023 · 0 comments
Open

Q: any API doc? how to skip empty field in csvReader? #358

mw66 opened this issue Jun 6, 2023 · 0 comments

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@mw66
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mw66 commented Jun 6, 2023

https://forum.dlang.org/thread/pcyxzjmlowdzqoroicdd@forum.dlang.org

If there is any API doc?

Readme only has command line doc.

BTW, how to skip empty field in csvReader? E.g. how to achieve the following in this library? Thanks.

https://run.dlang.io/is/9afmT1

void main()
{
    import std.csv;
    import std.stdio: write, writeln, writef, writefln;
    import std.algorithm.comparison : equal;
    string text = "Hello;65;;\nWorld;123;7.5";
    struct Layout
    {
        string name;
        int value;
        double other;
    }

    auto records = text.csvReader!Layout(';');
    assert(records.equal([
        Layout("Hello", 65, 2.5),
        Layout("World", 123, 7.5),
    ]));


}

There is an empty field in the 1st line: "Hello;65;;", then

std.csv.CSVException@/dlang/dmd/linux/bin64/../../src/phobos/std/csv.d(1232): Floating point conversion error for input "".

Is there a way to tell csvReader to skip such empty fields?

@mw66 mw66 changed the title Q: any API doc? Q: any API doc? how to skip empty field in csvReader? Jun 6, 2023
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