@Test
public void testCorp() {
// We test a 2x2 design: {strict, regular} x {no following context, following context}
for (int sent = 0; sent < 4; sent++) {
PTBTokenizer<CoreLabel> ptbTokenizer =
new PTBTokenizer<>(
new StringReader(corpInputs[sent / 2]),
new CoreLabelTokenFactory(),
(sent % 2 == 0) ? "strictTreebank3" : "");
int i = 0;
while (ptbTokenizer.hasNext()) {
CoreLabel w = ptbTokenizer.next();
try {
assertEquals("PTBTokenizer problem", corpGold[sent % 2][i], w.word());
} catch (ArrayIndexOutOfBoundsException aioobe) {
// the assertion below outside the loop will fail
}
i++;
}
if (i != corpGold[sent % 2].length) {
System.out.println("Gold: " + Arrays.toString(corpGold[sent % 2]));
List<CoreLabel> tokens =
new PTBTokenizer<>(
new StringReader(corpInputs[sent / 2]),
new CoreLabelTokenFactory(),
(sent % 2 == 0) ? "strictTreebank3" : "")
.tokenize();
System.out.println("Guess: " + SentenceUtils.listToString(tokens));
System.out.flush();
}
assertEquals("PTBTokenizer num tokens problem", i, corpGold[sent % 2].length);
}
}
@Test
public void testFractions() {
String[] sample = {"5-1/4 plus 2 3/16 = 7\u00A07/16 in the U.S.S.R. Why not?"};
String[][] tokenizedNormal = {
{
"5-1/4",
"plus",
"2\u00A03/16",
"=",
"7\u00A07/16",
"in",
"the",
"U.S.S.R.",
".",
"Why",
"not",
"?"
}
};
String[][] tokenizedStrict = {
{
"5-1/4", "plus", "2", "3/16", "=", "7", "7/16", "in", "the", "U.S.S.R", ".", "Why", "not",
"?"
}
};
TokenizerFactory<CoreLabel> tokFactoryNormal = PTBTokenizer.coreLabelFactory();
TokenizerFactory<CoreLabel> tokFactoryStrict = PTBTokenizer.coreLabelFactory("strictTreebank3");
runOnTwoArrays(tokFactoryNormal, sample, tokenizedNormal);
runOnTwoArrays(tokFactoryStrict, sample, tokenizedStrict);
}
@Test
public void testJacobEisensteinApostropheCase() {
StringReader reader = new StringReader("it's");
PTBTokenizer<Word> tokenizer = PTBTokenizer.newPTBTokenizer(reader);
List<Word> stemmedTokens = tokenizer.tokenize();
// for (Word word : stemmedTokens) System.out.print (word+" ");
reader = new StringReader(" it's ");
tokenizer = PTBTokenizer.newPTBTokenizer(reader);
List<Word> stemmedTokens2 = tokenizer.tokenize();
// System.out.println ();
// for (Word word : stemmedTokens2) System.out.print (word+" ");
// System.out.println();
assertEquals(stemmedTokens, stemmedTokens2);
}
@Test
public void testUntok() {
assert (untokInputs.length == untokOutputs.length);
for (int i = 0; i < untokInputs.length; i++) {
assertEquals(
"untok gave the wrong result", untokOutputs[i], PTBTokenizer.ptb2Text(untokInputs[i]));
}
}
@Test
public void testInvertible() {
String text = " This is a colourful sentence. ";
PTBTokenizer<CoreLabel> tokenizer =
PTBTokenizer.newPTBTokenizer(new StringReader(text), false, true);
List<CoreLabel> tokens = tokenizer.tokenize();
assertEquals(6, tokens.size());
assertEquals(" ", tokens.get(0).get(CoreAnnotations.BeforeAnnotation.class));
assertEquals(" ", tokens.get(0).get(CoreAnnotations.AfterAnnotation.class));
assertEquals(
"Wrong begin char offset",
2,
(int) tokens.get(0).get(CoreAnnotations.CharacterOffsetBeginAnnotation.class));
assertEquals(
"Wrong end char offset",
6,
(int) tokens.get(0).get(CoreAnnotations.CharacterOffsetEndAnnotation.class));
assertEquals("This", tokens.get(0).get(CoreAnnotations.OriginalTextAnnotation.class));
// note: after(x) and before(x+1) are the same
assertEquals(" ", tokens.get(0).get(CoreAnnotations.AfterAnnotation.class));
assertEquals(" ", tokens.get(1).get(CoreAnnotations.BeforeAnnotation.class));
// americanize is now off by default
assertEquals("colourful", tokens.get(3).get(CoreAnnotations.TextAnnotation.class));
assertEquals("colourful", tokens.get(3).get(CoreAnnotations.OriginalTextAnnotation.class));
assertEquals("", tokens.get(4).after());
assertEquals("", tokens.get(5).before());
assertEquals(" ", tokens.get(5).get(CoreAnnotations.AfterAnnotation.class));
StringBuilder result = new StringBuilder();
result.append(tokens.get(0).get(CoreAnnotations.BeforeAnnotation.class));
for (CoreLabel token : tokens) {
result.append(token.get(CoreAnnotations.OriginalTextAnnotation.class));
String after = token.get(CoreAnnotations.AfterAnnotation.class);
if (after != null) result.append(after);
}
assertEquals(text, result.toString());
for (int i = 0; i < tokens.size() - 1; ++i) {
assertEquals(
tokens.get(i).get(CoreAnnotations.AfterAnnotation.class),
tokens.get(i + 1).get(CoreAnnotations.BeforeAnnotation.class));
}
}
/**
* Test program for demonstrating the Stemmer. It reads text from a a list of files, stems each
* word, and writes the result to standard output. Note that the word stemmed is expected to be in
* lower case: forcing lower case must be done outside the Stemmer class. Usage: Stemmer file-name
* file-name ...
*/
public static void main(String[] args) throws IOException {
Stemmer s = new Stemmer();
if (args[0].equals("-file")) {
Iterator<Word> it =
PTBTokenizer.newPTBTokenizer(
new InputStreamReader(new FileInputStream(args[1]), "utf-8"));
while (it.hasNext()) {
Word token = it.next();
System.out.print(s.stem(token.word()));
System.out.print(' ');
}
} else {
for (String arg : args) {
System.out.print(s.stem(arg));
System.out.print(' ');
}
}
System.out.println();
}
public static void main(String[] args) // start of the main method
{
System.out.println("\n\n\nSTART\n\n\n"); // print START
try // device to handle potential errors
{
// open file whose path is passed
// as the first argument of the main method:
FileInputStream fis = new FileInputStream(args[0]);
DataInputStream dis = new DataInputStream(fis);
BufferedReader br = new BufferedReader(new InputStreamReader(dis));
// prepare Parser, Tokenizer and Tree printer:
LexicalizedParser lp = new LexicalizedParser("englishPCFG.ser.gz");
TokenizerFactory tf = PTBTokenizer.factory(false, new WordTokenFactory());
TreePrint tp = new TreePrint("penn,typedDependenciesCollapsed");
String sentence; // initialization
// for each line of the file
// retrieve it as a string called 'sentence':
while ((sentence = br.readLine()) != null) {
// print sentence:
System.out.println("\n\n\n\nORIGINAL:\n\n" + sentence);
// put tokens in a list:
List tokens = tf.getTokenizer(new StringReader(sentence)).tokenize();
lp.parse(tokens); // parse the tokens
Tree t = lp.getBestParse(); // get the best parse tree
System.out.println("\nPROCESSED:\n\n");
tp.printTree(t); // print tree
}
dis.close(); // close input file
} catch (Exception e) // catch error if any
{
System.err.println("ERROR: " + e.getMessage()); // print error message
}
System.out.println("\n\n\nTHE END\n\n\n"); // print THE END
} // end of the main method
@Test
public void testPTBTokenizerSGML() {
TokenizerFactory<CoreLabel> tokFactory = PTBTokenizer.coreLabelFactory();
runOnTwoArrays(tokFactory, sgmlInputs, sgmlGold);
}
@Test
public void testPTBTokenizerWord() {
TokenizerFactory<Word> tokFactory = PTBTokenizer.factory();
runOnTwoArrays(tokFactory, ptbInputs, ptbGold);
}
@Test
public void testPTBTokenizerMT() {
TokenizerFactory<Word> tokFactory = PTBTokenizer.factory();
runOnTwoArrays(tokFactory, mtInputs, mtGold);
}
@Test
public void testPTBTokenizerTokenizeSplitHyphens() {
TokenizerFactory<CoreLabel> tokFactory = PTBTokenizer.coreLabelFactory("splitHyphenated=true");
runOnTwoArrays(tokFactory, ptbInputs, ptbGoldSplitHyphenated);
}
@Test
public void testPTBTokenizerTokenizePerLineSGML() {
TokenizerFactory<CoreLabel> tokFactory = PTBTokenizer.coreLabelFactory("tokenizePerLine=true");
runOnTwoArrays(tokFactory, sgmlInputs, sgmlPerLineGold);
}