Package com.lastcalc

Examples of com.lastcalc.TokenList$CompositeTokenList

37
38
39
40
41
42
43
44
45
46
47
    final CombinedParserPickerFactory f = new CombinedParserPickerFactory(f1, f2);

    final BacktrackingParseEngine pe = new BacktrackingParseEngine(f);

    final ParserContext context = new ParserContext(pe, Long.MAX_VALUE);
    final TokenList result = pe.parseAndGetLastStep(new TokenList.SimpleTokenList("1", "1", "2", "2", "3", "3",
        "4", "4"),
        context);

    Assert.assertEquals(TokenList.createD("one", "two", "three", "four"), result);
  }
View Full Code Here
36
37
38
39
40
41
42
43
44
45
46
 
  public void hookedUpProperly(){
   
    final SequentialParser sp=SequentialParser.create();
   
    TokenList pr=sp.parseNext(TokenList.createD("6","!"));
   
    Assert.assertEquals(1,pr.size());
    Assert.assertEquals(LargeInteger.valueOf(720), pr.get(0));
   
  }
View Full Code Here
49
50
51
52
53
54
55
56
57
58
59
    public abstract ParseStep pickNext(ParserContext context, ParseStep previous);

    protected ParseStep getNext(final ParserContext context,
        final Iterable<Parser> parsers,
        final ParseStep previous) {
      final TokenList input = previous.result.output;
      for (final Parser candidate : parsers) {
        int sPos = -1;
        final Attempt attempt = new Attempt(input, candidate);
        // Check to see if we've tried applying this parser to these
        // input tokens before
View Full Code Here
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
      final List<Object> result = Lists.newArrayListWithCapacity(after.size() + 2);
      final boolean useBrackets = tokens.size() > template.size();
      if (useBrackets) {
        result.add("(");
      }
      final TokenList input = tokens.subList(templatePos, templatePos + template.size());
      final Map<String, Object> varMap = Maps.newHashMapWithExpectedSize(variables.size());
      try {
        bind(before, input, variables, varMap);
        for (final Object o : after) {
          final Object val = varMap.get(o);
          if (val != null) {
            result.add(val);
          } else {
            result.add(o);
          }
        }
      } catch (final BindException e) {
        return ParseResult.fail();
      }
      if (useBrackets) {
        result.add(")");
      }
      final TokenList resultTL = TokenList.create(result);
      final TokenList flattened = PreParser.flatten(resultTL);
      return ParseResult.success(
          tokens.replaceWithTokenList(templatePos, templatePos + template.size(), flattened),
          Math.min(0, -flattened.size())
          );
    }
View Full Code Here
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
    if (datastructure instanceof List) {
      if (udp.getTemplate().size() != 2)
        return ParseResult.fail();
      final List<Object> list = (List<Object>) datastructure;
      for (final Object o : list) {
        TokenList r = udp.parse(TokenList.createD(ret, o), 0).output;
        r = context.parseEngine.parseAndGetLastStep(r, context);
        if (r.size() != 1)
          return ParseResult.fail();
        else {
          ret = r.get(0);
        }
      }
    } else
      return ParseResult.fail();
    return ParseResult.success(tokens.replaceWithTokenList(templatePos, templatePos + template.size(),
View Full Code Here
76
77
78
79
80
81
82
83
84
85
86
87
88
    return TokenList.create(ret);
  }

  private static void flattenTo(final Object obj, final List<Object> output) {
    if (obj instanceof TokenList) {
      final TokenList sts = (TokenList) obj;
      if (sts.size() == 1) {
        flattenTo(sts.get(0), output);
      } else {
        for (final Object o : sts) {
          flattenTo(o, output);
        }
      }
View Full Code Here
30
31
32
33
34
35
36
37
38
39
40
  @Override
  public ParseResult parse(final TokenList tokens, final int templatePos, final ParserContext context) {
    final UserDefinedParser function = (UserDefinedParser) tokens.get(templatePos + 1);
    if (2 + templatePos + function.getTemplate().size() > tokens.size())
      return ParseResult.fail();
    final TokenList input = tokens.subList(templatePos + 3, templatePos + 3 + function.getTemplate().size());
    if (function.matchTemplate(input) != 0)
      return ParseResult.fail();
    final ParseResult parse = function.parse(input, 0, context);
    if (parse.isSuccess())
      return ParseResult.success(tokens.replaceWithTokenList(templatePos, templatePos + 3
View Full Code Here
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
    // Identify the beginning and end of the UDPP
    final int start = PreParser.findEdgeOrObjectBackwards(tokens, templatePos, null);
    final int end = PreParser.findEdgeOrObjectForwards(tokens, templatePos, null) + 1;

    final TokenList before = tokens.subList(start, templatePos);

    if (before.isEmpty())
      return ParseResult.fail();

    final TokenList after = PreParser.flatten(tokens.subList(templatePos + 1, end));

    if (after.isEmpty())
      return ParseResult.fail();

    final Set<String> variables = Sets.newHashSet();

    for (final Object o : PreParser.flatten(before)) {
View Full Code Here
38
39
40
41
42
43
44
45
46
47
48
        return ParseResult.fail();
      final List<Object> list = (List<Object>) datastructure;
      ret = Lists.newArrayListWithCapacity(list.size() * 4);
      ret.add("[");
      for (final Object o : list) {
        final TokenList r = context.parseEngine.parseAndGetLastStep(udp.parse(TokenList.createD(o), 0).output,
            context);
        Iterables.addAll(ret, r);
        ret.add(",");
      }
      ret.set(ret.size() - 1, "]"); // Overwrite last comma
View Full Code Here
123
124
125
126
127
128
129
130
131
132
133
          lineNumber.text(lineNo+".");
         
          final Element question = lineEl.appendElement("div").attr("class", "question")
              .attr("contentEditable", "true");
          question.text(qa.question);
          final TokenList strippedAnswer = sp.stripUDF(qa.answer);
          final AnswerType aType = WorksheetServlet.getAnswerType(strippedAnswer);
          if (aType.equals(AnswerType.NORMAL)) {
            lineEl.appendElement("div").attr("class", "equals").text("=");
            lineEl.appendElement("div").attr("class", "answer")
            .html(Renderers.toHtml("/", strippedAnswer).toString());
View Full Code Here
TOP

Related Classes of com.lastcalc.TokenList$CompositeTokenList

  • com.lastcalc.engines.CombinedParserPickerFactoryTest
  • com.lastcalc.engines.ParserPickerFactory$ParserPicker
  • com.lastcalc.parsers.bool.IfThenElse
  • com.lastcalc.parsers.collections.ApplyTo
  • com.lastcalc.parsers.collections.Filter
  • com.lastcalc.parsers.collections.FoldLeft
  • com.lastcalc.parsers.math.FactorialParserTest
  • com.lastcalc.parsers.PreParser
  • com.lastcalc.parsers.UDPApplier
  • com.lastcalc.parsers.UserDefinedParserParser
    • Copyright © 2018 www.massapicom. All rights reserved.
    All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.