/// <summary>
/// Adds/"deletes" a given puaCharacter to the given TextWriter
/// Will write a DerivedBidiClass.txt style line.
/// </summary>
/// <param name="puaCharacter">The character to add or delete</param>
/// <param name="?"></param>
public void AddUCDLine(TextWriter writer, UCDCharacter ucdCharacter, bool add)
{
if(add)
writer.WriteLine(ucdCharacter.ToString()+" " + m_comment);
// Uncomment this line to replace lines with a comment indicating that the line was removed.
// else
// writer.WriteLine("# DELETED LINE: {0}",puaCharacter.ToBidiString());
}
/// ------------------------------------------------------------------------------------
/// <summary>
/// Compares two UCDCharacters.
/// If the two are in the same "region" sorted as though they are identical, they will "match".
/// For most files this will just be as simple "equals" comparing the strings.
/// However, for the DerivedNormalizationProps.txt file,
/// both NFC_NO and NFC_MAYBE are the in the same region.
/// </summary>
/// <param name="ucd">The ucd.</param>
/// <returns>
/// True if the properties are in the same "region" sorted as though they are identical in a file.
/// </returns>
/// ------------------------------------------------------------------------------------
public bool SameRegion(UCDCharacter ucd)
{
return SameRegion(ucd.Property);
}
/// <summary>
/// Read to the end of a given section of matching bidi class values.
/// Passes everything read through to the writer.
/// If this finds a section count comment, it will replace it with the current count.
/// </summary>
/// <param name="reader">The reader to read through.</param>
/// <param name="lastBidiClass">The section we need to reed to the end of.</param>
/// <param name="currentCount">The count of characters found before reading to the end of the section.</param>
/// <param name="ucdCharacter">UCD Character used to know what kind of UCD file we are parsing.
/// The actual contencts of the UCD Character are ignored.</param>
/// <returns>The first line of the next section.</returns>
private string ReadToEndOfSection(TextReader reader, TextWriter writer, string lastProperty, int currentCount, UCDCharacter ucdCharacter)
{
string line;
string currentProperty;
while((line = reader.ReadLine()) != null)
{
// if there is a bidi class value to read
if(HasBidiData(line))
{
// increments the current count of codepoints found so far.
IncrementCount(ref currentCount,line);
// read the bidi value from the line
currentProperty = GetProperty(line);
// if it isn't in the current section we are done with section.
if (!ucdCharacter.SameRegion(currentProperty,lastProperty))
break;
}
// if its a comment, find the total count comment and replace it with the current count.
else if(line.ToLowerInvariant().IndexOf("total code points")!=-1)
{
line = "# Total code points: " + currentCount;
currentCount = 0;
}
// Write through all lines except the first line of the next section
writer.WriteLine(line);
}
// Return the last line that we read
// This is the first line of the next section, so someone will probably want to parse it.
return line;
}
