private static async Task ProcessNameAliasesFile(IDataSource ucdSource, UnicodeInfoBuilder builder)
{
using (var reader = new UnicodeDataFileReader(await ucdSource.OpenDataFileAsync(NameAliasesFileName).ConfigureAwait(false), ';'))
{
while (reader.MoveToNextLine())
{
var ucd = builder.GetUcd(int.Parse(reader.ReadField(), NumberStyles.HexNumber));
string name = reader.ReadField();
string kindName = reader.ReadField();
if (!EnumHelper <UnicodeNameAliasKind> .TryGetNamedValue(kindName, out var kind))
{
throw new InvalidDataException("Unrecognized name alias: " + kindName + ".3");
}
ucd.NameAliases.Add(new UnicodeNameAlias(name, kind));
}
}
}
private static async Task ProcessNamesListFile(IDataSource ucdSource, UnicodeInfoBuilder builder)
{
using (var reader = new StreamReader(await ucdSource.OpenDataFileAsync(NamesListFileName).ConfigureAwait(false), Encoding.UTF8, false))
{
string line;
var characterData = null as UnicodeCharacterDataBuilder;
while ((line = reader.ReadLine()) != null)
{
if (line.Length == 0)
{
characterData = null;
continue;
}
if (characterData != null && line.Length > 3 && line[0] == '\t')
{
if (line[1] == 'x')
{
// We should get at least 7 characters for a valid line: <tab> "x" <space> [0-9A-Z][0-9A-Z][0-9A-Z][0-9A-Z]
if (line.Length < 7)
{
characterData = null;
continue;
}
if (line[2] != ' ')
{
throw new InvalidDataException();
}
int length;
if (line[3].IsHexDigit())
{
length = line.IndexOf(' ', 3);
if (length < 0)
{
length = line.Length;
}
length -= 3;
characterData.CrossRerefences.Add(int.Parse(line.Substring(3, length), NumberStyles.HexNumber));
}
else if (line[3] == '(')
{
bool hasBrackets = line[4] == '<';
int codePointOffset = line.IndexOf(hasBrackets ? "> - " : "- ", 4);
if (codePointOffset < 0)
{
throw new InvalidDataException();
}
codePointOffset += hasBrackets ? 4 : 2;
length = line.IndexOf(')', codePointOffset);
if (length < 0)
{
throw new InvalidDataException();
}
length -= codePointOffset;
characterData.CrossRerefences.Add(int.Parse(line.Substring(codePointOffset, length), NumberStyles.HexNumber));
}
else
{
throw new InvalidDataException();
}
}
continue;
}
if (line[0].IsHexDigit())
{
int codePoint = int.Parse(line.Substring(0, line.IndexOf('\t')), NumberStyles.HexNumber);
// This may return null, but for now, we will ignore code points that are not defined in UnicodeData.txt.
characterData = builder.GetUcd(codePoint);
// There should be no NamesList.txt entries for code points defined in a range.
if (characterData != null && !characterData.CodePointRange.IsSingleCodePoint)
{
// The only exception to this rule will be when we added the "Noncharacter_Code_Point" property to a few ranges, and we will ignore those.
if ((characterData.ContributoryProperties & ContributoryProperties.NonCharacterCodePoint) != 0)
{
characterData = null;
}
else
{
throw new InvalidDataException("Did not expect an NamesList.txt entry for U+" + codePoint.ToString("X4") + ".");
}
}
continue;
}
switch (line[0])
{
case '@':
case ';':
case '\t':
characterData = null;
break;
default:
throw new InvalidDataException("Unrecognized data in NamesList.txt.");
}
}
}
}
