private string To_XML_Safe_Name(string Name)
{
int idx = Name.IndexOf('-');
if (idx >= 0 && Name.Length < 2)
{
throw new DomSyntaxError();
}
if (idx >= 0 && (Name[idx + 1] >= 'a' || Name[idx + 1] <= 'z'))
{
throw new DomSyntaxError();
}
bool hasAlpha = false;
for (int i = 0; i < Name.Length; i++)
{
if (UnicodeCommon.Is_ASCII_Upper_Alpha(Name[i]))
{
hasAlpha = true; break;
}
}
/* 2) For each ASCII upper alpha in name, insert a U+002D HYPHEN-MINUS character (-) before the character and replace the character with the same character converted to ASCII lowercase. */
StringBuilder sb = new StringBuilder();
if (hasAlpha)
{
for (int i = 0; i < Name.Length; i++)
{
if (UnicodeCommon.Is_ASCII_Upper_Alpha(Name[i]))
{
sb.Append('-');
sb.Append(UnicodeCommon.To_ASCII_Lower_Alpha(Name[i]));
}
else
{
sb.Append(Name[i]);
}
}
}
else
{
sb.Append(Name);
}
/* 3) Insert the string data- at the front of name. */
sb.Insert(0, "data-");
string safeName = sb.ToString();
/* 4) If name does not match the XML Name production, throw an "InvalidCharacterError" DOMException. */
if (!XMLCommon.Is_Valid_Name(safeName))
{
throw new InvalidCharacterError($"The Name '{safeName}' is not a valid XML name production.");
}
return(safeName);
}
/// <summary>
/// Deletes a named value from the list.
/// </summary>
/// <param name="Name"></param>
public void delete(string Name)
{
bool hasAlpha = false;
for (int i = 0; i < Name.Length; i++)
{
if (UnicodeCommon.Is_ASCII_Upper_Alpha(Name[i]))
{
hasAlpha = true; break;
}
}
/* 1) For each ASCII upper alpha in name, insert a U+002D HYPHEN-MINUS character (-) before the character and replace the character with the same character converted to ASCII lowercase. */
StringBuilder sb = new StringBuilder();
if (hasAlpha)
{
for (int i = 0; i < Name.Length; i++)
{
if (UnicodeCommon.Is_ASCII_Upper_Alpha(Name[i]))
{
sb.Append(UnicodeCommon.CHAR_HYPHEN_MINUS);
sb.Append(UnicodeCommon.To_ASCII_Lower_Alpha(Name[i]));
}
else
{
sb.Append(Name[i]);
}
}
}
else
{
sb.Append(Name);
}
/* 2) Insert the string data- at the front of name. */
sb.Insert(0, "data-");
Name = sb.ToString();
/* 3) Remove an attribute by name given name and the DOMStringMap's associated element. */
if (Owner.find_attribute(Name, out Attr attr))
{
Owner.remove_attribute(attr);
}
}