/// <summary>
/// Compares whether two strings have equal placeholders.
/// </summary>
/// <param name="str1"></param>
/// <param name="str2"></param>
/// <returns></returns>
static bool EqualPlaceholders(IString str1, IString str2)
{
if (str1 == null && str2 == null)
{
return(true);
}
if (str1 == null || str2 == null)
{
return(false);
}
if (str1.Placeholders.Length != str2.Placeholders.Length)
{
return(false);
}
int c = str1.Placeholders.Length;
for (int i = 0; i < c; i++)
{
IPlaceholder ph1 = str1.Placeholders[i], ph2 = str2.Placeholders[i];
if (!PlaceholderExpressionEquals.Equals(ph1.Expression, ph2.Expression))
{
return(false);
}
}
return(true);
}
/// <summary>
/// Compare format strings for equality.
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <returns></returns>
public bool Equals(IStringPart x, IStringPart y)
{
if (x == null && y == null)
{
return(true);
}
if (x == null || y == null)
{
return(false);
}
if (x == y)
{
return(true);
}
if (x.Kind != y.Kind)
{
return(false);
}
if (x.Kind == StringPartKind.Text)
{
if (x.Text != y.Text)
{
return(false);
}
}
if (x.Kind == StringPartKind.Placeholder)
{
var x_arg = x as IPlaceholder;
var y_arg = y as IPlaceholder;
if (x_arg.PlaceholderIndex != y_arg.PlaceholderIndex)
{
return(false);
}
if (x_arg.PluralCategory != y_arg.PluralCategory)
{
return(false);
}
if ((x_arg.Expression == null) != (y_arg.Expression == null))
{
return(false);
}
if ((x_arg.Expression != null) && (y_arg.Expression != null))
{
return(PlaceholderExpressionEquals.Equals(x_arg, y_arg));
}
}
return(true);
}