/// <summary>
/// Converts the range from lastSafe to limit.
/// </summary>
///
/// <param name="verify">If non-null, check to see that all replacement characters arein it. If not, abort the conversion and returnInteger.MIN_VALUE.</param>
/// <returns>return the delta in length (new - old), or Integer.MIN_VALUE if
/// the verify aborted.</returns>
internal int Convert(Replaceable text, int lastSafe, int limit, UnicodeSet verify)
{
// System.out.println("t: " +
// com.ibm.icu.impl.Utility.hex(text.toString()) + ", s: " + lastSafe +
// ", l: " + limit);
int len = limit - lastSafe;
String input = null;
lock (buffer) {
if (buffer.Length < len)
{
buffer = new char[len]; // rare, and we don't care if we grow
// too large
}
text.GetChars(lastSafe, limit, buffer, 0);
input = new String(buffer, 0, len); // TODO: fix normalizer to take
// char[]
}
String output = IBM.ICU.Text.Normalizer.Normalize(input, mode, options);
// verify OK, if specified
if (verify != null)
{
bool skip = !skippable.ContainsAll(output);
if (DEBUG)
{
System.Console.Out.WriteLine(((skip) ? " SKIP: " : "NOSKIP: ")
+ IBM.ICU.Impl.Utility.Escape(input) + " => "
+ IBM.ICU.Impl.Utility.Escape(output));
}
if (skip)
{
return(Int32.MinValue);
}
}
if (output.Equals(input))
{
return(0);
}
text.Replace(lastSafe, limit, output);
return(output.Length - len);
}