public bool TryParse(string sort, out ISortParserResult result)
{
var expressions = new List <ISortParserResultExpression>();
if (!string.IsNullOrEmpty(sort))
{
var lines = sort.Split(new[]
{
Environment.NewLine
}, StringSplitOptions.RemoveEmptyEntries);
foreach (var line in lines)
{
var success = default(bool);
foreach (var provider in this.Providers)
{
var expression = default(ISortParserResultExpression);
if (provider.TryParse(line, out expression))
{
expressions.Add(expression);
success = true;
break;
}
}
if (!success)
{
result = default(ISortParserResult);
return(false);
}
}
}
result = new SortParserResult(expressions);
return(true);
}
public void SortParserTest001()
{
var sort = "CustomMetaData.VariousArtists";
var expected = new SortParserResult(
new[]
{
new SortParserResultExpression(
CustomMetaData.VariousArtists
)
}
);
var actual = default(ISortParserResult);
Assert.IsTrue(this.Core.Components.SortParser.TryParse(
sort,
out actual
));
Assert.AreEqual(expected, actual);
}
public void SortParserTest003()
{
var sort = "CommonMetaData.Disc num";
var expected = new SortParserResult(
new[]
{
new SortParserResultExpression(
CommonMetaData.Disc,
SortParserResultOperator.Numeric
)
}
);
var actual = default(ISortParserResult);
Assert.IsTrue(this.Core.Components.SortParser.TryParse(
sort,
out actual
));
Assert.AreEqual(expected, actual);
}
public void SortParserTest004()
{
var sort = @"CustomMetaData.VariousArtists ? CommonMetaData.Artist
CommonMetaData.Year
CommonMetaData.Album
CommonMetaData.Disc num
CommonMetaData.Track num";
var expected = new SortParserResult(
new[]
{
new SortParserResultExpression(
CustomMetaData.VariousArtists,
SortParserResultOperator.NullCoalesce,
new SortParserResultExpression(
CommonMetaData.Artist
)
),
new SortParserResultExpression(
CommonMetaData.Year
),
new SortParserResultExpression(
CommonMetaData.Album
),
new SortParserResultExpression(
CommonMetaData.Disc,
SortParserResultOperator.Numeric
),
new SortParserResultExpression(
CommonMetaData.Track,
SortParserResultOperator.Numeric
)
}
);
var actual = default(ISortParserResult);
Assert.IsTrue(this.Core.Components.SortParser.TryParse(
sort,
out actual
));
Assert.AreEqual(expected, actual);
}
public void SortParserTest002()
{
var sort = "CustomMetaData.VariousArtists ? CommonMetaData.Artist";
var expected = new SortParserResult(
new[]
{
new SortParserResultExpression(
CustomMetaData.VariousArtists,
SortParserResultOperator.NullCoalesce,
new SortParserResultExpression(
CommonMetaData.Artist
)
)
}
);
var actual = default(ISortParserResult);
Assert.IsTrue(this.Core.Components.SortParser.TryParse(
sort,
out actual
));
Assert.AreEqual(expected, actual);
}
