public void TestCaptureGroupMatcher()
{
var m = Matcher.CaptureGroup("g", Matcher.Repeat(Matcher.Char('a'), 1));
{
var c = new MatchContent("abc", 0, MatchDirection.Forward);
Assert.Equal(1, m.Match(c));
var g = c.GetGroup("g");
Assert.NotNull(g);
Assert.Equal(0, g.Value.StartIndex);
Assert.Equal(1, g.Value.Count);
Assert.Equal("a", g.Value.GetValue());
}
{
var c = new MatchContent("abc", 0, MatchDirection.Backward);
Assert.Equal(Matcher.NotMatch, m.Match(c));
var g = c.GetGroup("g");
Assert.Null(g);
}
{
var c = new MatchContent("abc", 1, MatchDirection.Forward);
Assert.Equal(Matcher.NotMatch, m.Match(c));
var g = c.GetGroup("g");
Assert.Null(g);
}
{
var c = new MatchContent("abc", 1, MatchDirection.Backward);
Assert.Equal(1, m.Match(c));
var g = c.GetGroup("g");
Assert.NotNull(g);
Assert.Equal(0, g.Value.StartIndex);
Assert.Equal(1, g.Value.Count);
Assert.Equal("a", g.Value.GetValue());
}
{
var c = new MatchContent("aaa", 0, MatchDirection.Forward);
Assert.Equal(3, m.Match(c));
var g = c.GetGroup("g");
Assert.NotNull(g);
Assert.Equal(0, g.Value.StartIndex);
Assert.Equal(3, g.Value.Count);
Assert.Equal("aaa", g.Value.GetValue());
}
{
var c = new MatchContent("aaa", 3, MatchDirection.Backward);
Assert.Equal(3, m.Match(c));
var g = c.GetGroup("g");
Assert.NotNull(g);
Assert.Equal(0, g.Value.StartIndex);
Assert.Equal(3, g.Value.Count);
Assert.Equal("aaa", g.Value.GetValue());
}
}
public override int Match(MatchContent content)
{
var g = content.GetGroup(_groupName);
if (g == null)
{
return(NotMatch);
}
var text = g.Value.GetValue();
if (content.Length < text.Length)
{
return(NotMatch);
}
for (int i = 0; i < text.Length; i++)
{
if (content[i] != text[i])
{
return(NotMatch);
}
}
return(text.Length);
}
public override int Match(MatchContent content)
{
var g = content.GetGroup(_groupName);
if (g == null)
{
return(NotMatch);
}
var text = g.Value.GetValue();
if (content.Length < text.Length)
{
return(NotMatch);
}
if (content.Direction == MatchDirection.Forward)
{
for (int i = 0; i < text.Length; i++)
{
if (content[i] != text[i])
{
return(NotMatch);
}
}
}
else
{
for (int i = 0; i < text.Length; i++)
{
if (content[i] != text[text.Length - 1 - i])
{
return(NotMatch);
}
}
}
return(text.Length);
}