public static StringBuffer ConvertToASCII(UCharacterIterator srcIter, IDNA2003Options options)
{
char[]
caseFlags = null;
// the source contains all ascii codepoints
bool srcIsASCII = true;
// assume the source contains all LDH codepoints
bool srcIsLDH = true;
//get the options
bool useSTD3ASCIIRules = ((options & USE_STD3_RULES) != 0);
int ch;
// step 1
while ((ch = srcIter.Next()) != UCharacterIterator.DONE)
{
if (ch > 0x7f)
{
srcIsASCII = false;
}
}
int failPos = -1;
srcIter.SetToStart();
StringBuffer processOut = null;
// step 2 is performed only if the source contains non ASCII
if (!srcIsASCII)
{
// step 2
processOut = transform.Prepare(srcIter, (StringPrepOptions)options);
}
else
{
processOut = new StringBuffer(srcIter.GetText());
}
int poLen = processOut.Length;
if (poLen == 0)
{
throw new StringPrepParseException("Found zero length lable after NamePrep.", StringPrepErrorType.ZeroLengthLabel);
}
StringBuffer dest = new StringBuffer();
// reset the variable to verify if output of prepare is ASCII or not
srcIsASCII = true;
// step 3 & 4
for (int j = 0; j < poLen; j++)
{
ch = processOut[j];
if (ch > 0x7F)
{
srcIsASCII = false;
}
else if (IsLDHChar(ch) == false)
{
// here we do not assemble surrogates
// since we know that LDH code points
// are in the ASCII range only
srcIsLDH = false;
failPos = j;
}
}
if (useSTD3ASCIIRules == true)
{
// verify 3a and 3b
if (srcIsLDH == false || /* source contains some non-LDH characters */
processOut[0] == HYPHEN ||
processOut[processOut.Length - 1] == HYPHEN)
{
/* populate the parseError struct */
if (srcIsLDH == false)
{
throw new StringPrepParseException("The input does not conform to the STD 3 ASCII rules",
StringPrepErrorType.STD3ASCIIRulesError,
processOut.ToString(),
(failPos > 0) ? (failPos - 1) : failPos);
}
else if (processOut[0] == HYPHEN)
{
throw new StringPrepParseException("The input does not conform to the STD 3 ASCII rules",
StringPrepErrorType.STD3ASCIIRulesError, processOut.ToString(), 0);
}
else
{
throw new StringPrepParseException("The input does not conform to the STD 3 ASCII rules",
StringPrepErrorType.STD3ASCIIRulesError,
processOut.ToString(),
(poLen > 0) ? poLen - 1 : poLen);
}
}
}
if (srcIsASCII)
{
dest = processOut;
}
else
{
// step 5 : verify the sequence does not begin with ACE prefix
if (!StartsWithPrefix(processOut))
{
//step 6: encode the sequence with punycode
StringBuffer punyout = PunycodeReference.Encode(processOut, caseFlags);
// convert all codepoints to lower case ASCII
StringBuffer lowerOut = ToASCIILower(punyout);
//Step 7: prepend the ACE prefix
dest.Append(ACE_PREFIX, 0, ACE_PREFIX_LENGTH - 0); // ICU4N: Checked 3rd parameter
//Step 6: copy the contents in b2 into dest
dest.Append(lowerOut);
}
else
{
throw new StringPrepParseException("The input does not start with the ACE Prefix.",
StringPrepErrorType.AcePrefixError, processOut.ToString(), 0);
}
}
if (dest.Length > MAX_LABEL_LENGTH)
{
throw new StringPrepParseException("The labels in the input are too long. Length > 64.",
StringPrepErrorType.LabelTooLongError, dest.ToString(), 0);
}
return(dest);
}
public void TestIteration()
{
UCharacterIterator iterator = UCharacterIterator.GetInstance(
ITERATION_STRING_);
UCharacterIterator iterator2 = UCharacterIterator.GetInstance(
ITERATION_STRING_);
iterator.SetToStart();
if (iterator.Current != ITERATION_STRING_[0])
{
Errln("Iterator failed retrieving first character");
}
iterator.SetToLimit();
if (iterator.Previous() != ITERATION_STRING_[
ITERATION_STRING_.Length - 1])
{
Errln("Iterator failed retrieving last character");
}
if (iterator.Length != ITERATION_STRING_.Length)
{
Errln("Iterator failed determining begin and end index");
}
iterator2.Index = 0;
iterator.Index = 0;
int ch = 0;
while (ch != UCharacterIterator.DONE)
{
int index = iterator2.Index;
ch = iterator2.NextCodePoint();
if (index != ITERATION_SUPPLEMENTARY_INDEX)
{
if (ch != iterator.Next() &&
ch != UCharacterIterator.DONE)
{
Errln("Error mismatch in next() and nextCodePoint()");
}
}
else
{
if (UTF16.GetLeadSurrogate(ch) != iterator.Next() ||
UTF16.GetTrailSurrogate(ch) != iterator.Next())
{
Errln("Error mismatch in next and nextCodePoint for " +
"supplementary characters");
}
}
}
iterator.Index = ITERATION_STRING_.Length;
iterator2.Index = ITERATION_STRING_.Length;
while (ch != UCharacterIterator.DONE)
{
int index = iterator2.Index;
ch = iterator2.PreviousCodePoint();
if (index != ITERATION_SUPPLEMENTARY_INDEX)
{
if (ch != iterator.Previous() &&
ch != UCharacterIterator.DONE)
{
Errln("Error mismatch in previous() and " +
"previousCodePoint()");
}
}
else
{
if (UTF16.GetLeadSurrogate(ch) != iterator.Previous() ||
UTF16.GetTrailSurrogate(ch) != iterator.Previous())
{
Errln("Error mismatch in previous and " +
"previousCodePoint for supplementary characters");
}
}
}
}
public void TestIterationUChar32()
{
String text = "\u0061\u0062\ud841\udc02\u20ac\ud7ff\ud842\udc06\ud801\udc00\u0061";
int c;
int i;
{
UCharacterIterator iter = UCharacterIterator.GetInstance(text);
String iterText = iter.GetText();
if (!iterText.Equals(text))
{
Errln("iter.getText() failed");
}
iter.Index = (1);
if (iter.CurrentCodePoint != UTF16.CharAt(text, 1))
{
Errln("Iterator didn't start out in the right place.");
}
iter.SetToStart();
c = iter.CurrentCodePoint;
i = 0;
i = iter.MoveCodePointIndex(1);
c = iter.CurrentCodePoint;
if (c != UTF16.CharAt(text, 1) || i != 1)
{
Errln("moveCodePointIndex(1) didn't work correctly expected " + Hex(c) + " got " + Hex(UTF16.CharAt(text, 1)) + " i= " + i);
}
i = iter.MoveCodePointIndex(2);
c = iter.CurrentCodePoint;
if (c != UTF16.CharAt(text, 4) || i != 4)
{
Errln("moveCodePointIndex(2) didn't work correctly expected " + Hex(c) + " got " + Hex(UTF16.CharAt(text, 4)) + " i= " + i);
}
i = iter.MoveCodePointIndex(-2);
c = iter.CurrentCodePoint;
if (c != UTF16.CharAt(text, 1) || i != 1)
{
Errln("moveCodePointIndex(-2) didn't work correctly expected " + Hex(c) + " got " + Hex(UTF16.CharAt(text, 1)) + " i= " + i);
}
iter.SetToLimit();
i = iter.MoveCodePointIndex(-2);
c = iter.CurrentCodePoint;
if (c != UTF16.CharAt(text, (text.Length - 3)) || i != (text.Length - 3))
{
Errln("moveCodePointIndex(-2) didn't work correctly expected " + Hex(c) + " got " + Hex(UTF16.CharAt(text, (text.Length - 3))) + " i= " + i);
}
iter.SetToStart();
c = iter.CurrentCodePoint;
i = 0;
//testing first32PostInc, nextCodePointPostInc, setTostart
i = 0;
iter.SetToStart();
c = iter.Next();
if (c != UTF16.CharAt(text, i))
{
Errln("first32PostInc failed. Expected->" + Hex(UTF16.CharAt(text, i)) + " Got-> " + Hex(c));
}
if (iter.Index != UTF16.GetCharCount(c) + i)
{
Errln("getIndex() after first32PostInc() failed");
}
iter.SetToStart();
i = 0;
if (iter.Index != 0)
{
Errln("setToStart failed");
}
Logln("Testing forward iteration...");
do
{
if (c != UCharacterIterator.DONE)
{
c = iter.NextCodePoint();
}
if (c != UTF16.CharAt(text, i))
{
Errln("Character mismatch at position " + i + ", iterator has " + Hex(c) + ", string has " + Hex(UTF16.CharAt(text, i)));
}
i += UTF16.GetCharCount(c);
if (iter.Index != i)
{
Errln("getIndex() aftr nextCodePointPostInc() isn't working right");
}
c = iter.CurrentCodePoint;
if (c != UCharacterIterator.DONE && c != UTF16.CharAt(text, i))
{
Errln("current() after nextCodePointPostInc() isn't working right");
}
} while (c != UCharacterIterator.DONE);
c = iter.NextCodePoint();
if (c != UCharacterIterator.DONE)
{
Errln("nextCodePointPostInc() didn't return DONE at the beginning");
}
}
}
public void TestNamePrepConformance()
{
try
{
NamePrepTransform namePrep = NamePrepTransform.GetInstance();
if (!namePrep.IsReady)
{
Logln("Transliterator is not available on this environment.");
return;
}
for (int i = 0; i < TestData.conformanceTestCases.Length; i++)
{
TestData.ConformanceTestCase testCase = TestData.conformanceTestCases[i];
UCharacterIterator iter = UCharacterIterator.GetInstance(testCase.input);
try
{
StringBuffer output = namePrep.Prepare(iter, NamePrepTransform.NONE);
if (testCase.output != null && output != null && !testCase.output.Equals(output.ToString()))
{
Errln("Did not get the expected output. Expected: " + Prettify(testCase.output) +
" Got: " + Prettify(output));
}
if (testCase.expected != null && !unassignedException.Equals(testCase.expected))
{
Errln("Did not get the expected exception. The operation succeeded!");
}
}
catch (StringPrepParseException ex)
{
if (testCase.expected == null || !ex.Equals(testCase.expected))
{
Errln("Did not get the expected exception for source: " + testCase.input + " Got: " + ex.ToString());
}
}
try
{
iter.SetToStart();
StringBuffer output = namePrep.Prepare(iter, NamePrepTransform.ALLOW_UNASSIGNED);
if (testCase.output != null && output != null && !testCase.output.Equals(output.ToString()))
{
Errln("Did not get the expected output. Expected: " + Prettify(testCase.output) +
" Got: " + Prettify(output));
}
if (testCase.expected != null && !unassignedException.Equals(testCase.expected))
{
Errln("Did not get the expected exception. The operation succeeded!");
}
}
catch (StringPrepParseException ex)
{
if (testCase.expected == null || !ex.Equals(testCase.expected))
{
Errln("Did not get the expected exception for source: " + testCase.input + " Got: " + ex.ToString());
}
}
}
}
catch (TypeInitializationException e)
{
Warnln("Could not load NamePrepTransformData");
}
catch (TypeLoadException ex)
{
Warnln("Could not load NamePrepTransform data");
}
}
/// <summary>
/// Sets the position to <see cref="BeginIndex"/> and returns the character at that
/// position.
/// </summary>
/// <returns>The first character in the text, or <see cref="UCharacterIterator.Done"/> if the text is empty.</returns>
/// <seealso cref="BeginIndex"/>
public override char First()
{
//UCharacterIterator always iterates from 0 to length
iterator.SetToStart();
return((char)iterator.Current);
}
/// <summary>
/// Sets the position to getBeginIndex() and returns the character at that
/// position.
/// </summary>
///
/// <returns>the first character in the text, or DONE if the text is empty</returns>
/// <seealso cref="M:IBM.ICU.Impl.UCharacterIteratorWrapper.GetBeginIndex"/>
public virtual char First()
{
// UCharacterIterator always iterates from 0 to length
iterator.SetToStart();
return((char)iterator.Current());
}