public void NonGreedyContentStopsMatchingWhenFollowingTokensMatch()
{
// It's likely we'll only be able to get one or two tokens into
// the "following" list, since they effectively become "mandatory"
var following = new[]
{
new SimplePatternElement(Matchers.LiteralText(" (")),
new SimplePatternElement(Matchers.Identifier, "last"),
new SimplePatternElement(Matchers.LiteralText(")"))
};
var pattern = new NameValueExtractor(new[]
{
new SimplePatternElement(Matchers.Identifier, "first"),
new SimplePatternElement(Matchers.LiteralText(" ")),
new SimplePatternElement(Matchers.NonGreedyContent(following), "content"),
}.Concat(following));
var frame = "abc def ghi (jkl)";
var(properties, remainder) = pattern.ExtractValues(frame);
Assert.Null(remainder);
Assert.Equal("abc", properties["first"].ToString());
Assert.Equal("def ghi", properties["content"].ToString());
Assert.Equal("jkl", properties["last"].ToString());
}
public PlainTextLogEventReader(TextReader input, string extractionPattern)
{
if (extractionPattern == null)
{
throw new ArgumentNullException(nameof(extractionPattern));
}
_nameValueExtractor = ExtractionPatternInterpreter.CreateNameValueExtractor(ExtractionPatternParser.Parse(extractionPattern));
_reader = new FrameReader(input, SpanEx.MatchedBy(_nameValueExtractor.StartMarker), TrailingLineArrivalDeadline);
}
public void SingleLineContentMatchesUntilEol()
{
var pattern = new NameValueExtractor(new[]
{
new SimplePatternElement(Matchers.Identifier, "first"),
new SimplePatternElement(Matchers.LiteralText(" ")),
new SimplePatternElement(Matchers.SingleLineContent, "content"),
new SimplePatternElement(Matchers.LiteralText(" (")),
new SimplePatternElement(Matchers.Identifier, "last"),
new SimplePatternElement(Matchers.LiteralText(")"))
});
var frame = "abc def ghi (jkl)";
var(properties, remainder) = pattern.ExtractValues(frame);
Assert.Null(remainder);
Assert.Equal("abc", properties["first"].ToString());
Assert.Equal("def ghi (jkl)", properties["content"].ToString());
}
