public void SwitchTag_InverseBitInMask()
{
var expectedState = !textTagsState.IsInTag(TagName.Em);
textTagsState = textTagsState.SwitchTag(TagName.Em);
textTagsState.IsInTag(TagName.Em).Should().Be(expectedState);
}
private bool IsItLooksLikeTag(TagName tag, TextTagsState state)
{
const int moreThanAnyTagLength = 4;
if (state.Start + Tags.GetMd(tag).Length - 1 > state.End || IsDisabledEscape(state))
{
return(false);
}
if (state.Start + moreThanAnyTagLength <= state.End &&
state.Text.Substring(state.Start, moreThanAnyTagLength) == "____")
{
return(false);
}
var potentialTag = state.Text.Substring(state.Start, Tags.GetMd(tag).Length);
return(Tags.GetMd(tag) == potentialTag &&
!state.IsInTag(TagName.Em) &&
!state.IsInTag(TagName.StrongEm));
}
public bool TestIsInTag(TagName tagName) => textTagsState.IsInTag(tagName);