Package org.antlr.v4.runtime

Examples of org.antlr.v4.runtime.TokenStreamRewriter$ReplaceOp

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                       "C : 'c';\n");
    String input = "abc";
    LexerInterpreter lexEngine = g.createLexerInterpreter(new ANTLRInputStream(input));
    CommonTokenStream stream = new CommonTokenStream(lexEngine);
    stream.fill();
    TokenStreamRewriter tokens = new TokenStreamRewriter(stream);
    tokens.insertBefore(0, "x");
    tokens.insertBefore(0, "y");
    tokens.replace(0, "z");
    String result = tokens.getText();
    String expecting = "yxzbc";
    assertEquals(expecting, result);
  }
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                       "C : 'c';\n");
    String input = "abc";
    LexerInterpreter lexEngine = g.createLexerInterpreter(new ANTLRInputStream(input));
    CommonTokenStream stream = new CommonTokenStream(lexEngine);
    stream.fill();
    TokenStreamRewriter tokens = new TokenStreamRewriter(stream);
    tokens.replace(2, "x");
    tokens.insertBefore(2, "y");
    String result = tokens.getText();
    String expecting = "abyx";
    assertEquals(expecting, result);
  }
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                       "C : 'c';\n");
    String input = "abc";
    LexerInterpreter lexEngine = g.createLexerInterpreter(new ANTLRInputStream(input));
    CommonTokenStream stream = new CommonTokenStream(lexEngine);
    stream.fill();
    TokenStreamRewriter tokens = new TokenStreamRewriter(stream);
    tokens.insertBefore(2, "y");
    tokens.replace(2, "x");
    String result = tokens.getText();
    String expecting = "abyx";
    assertEquals(expecting, result);
  }
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                       "C : 'c';\n");
    String input = "abc";
    LexerInterpreter lexEngine = g.createLexerInterpreter(new ANTLRInputStream(input));
    CommonTokenStream stream = new CommonTokenStream(lexEngine);
    stream.fill();
    TokenStreamRewriter tokens = new TokenStreamRewriter(stream);
    tokens.replace(2, "x");
    tokens.insertAfter(2, "y");
    String result = tokens.getText();
    String expecting = "abxy";
    assertEquals(expecting, result);
  }
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                       "C : 'c';\n");
    String input = "abcccba";
    LexerInterpreter lexEngine = g.createLexerInterpreter(new ANTLRInputStream(input));
    CommonTokenStream stream = new CommonTokenStream(lexEngine);
    stream.fill();
    TokenStreamRewriter tokens = new TokenStreamRewriter(stream);
    tokens.replace(2, 4, "x");
    tokens.insertBefore(2, "y");
    String result = tokens.getText();
    String expecting = "abyxba";
    assertEquals(expecting, result);
  }
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                       "C : 'c';\n");
    String input = "abcccba";
    LexerInterpreter lexEngine = g.createLexerInterpreter(new ANTLRInputStream(input));
    CommonTokenStream stream = new CommonTokenStream(lexEngine);
    stream.fill();
    TokenStreamRewriter tokens = new TokenStreamRewriter(stream);
    tokens.replace(2, 4, "x");
    tokens.insertBefore(4, "y");
    stream.fill(); // no effect; within range of a replace
    Exception exc = null;
    try {
      tokens.getText();
    }
    catch (IllegalArgumentException iae) {
      exc = iae;
    }
    String expecting = "insert op <InsertBeforeOp@[@4,4:4='c',<3>,1:4]:\"y\"> within boundaries of previous <ReplaceOp@[@2,2:2='c',<3>,1:2]..[@4,4:4='c',<3>,1:4]:\"x\">";
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                       "C : 'c';\n");
    String input = "abcccba";
    LexerInterpreter lexEngine = g.createLexerInterpreter(new ANTLRInputStream(input));
    CommonTokenStream stream = new CommonTokenStream(lexEngine);
    stream.fill();
    TokenStreamRewriter tokens = new TokenStreamRewriter(stream);
    tokens.replace(2, 4, "x");
    tokens.insertAfter(4, "y");
    String result = tokens.getText();
    String expecting = "abxyba";
    assertEquals(expecting, result);
  }
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                       "C : 'c';\n");
    String input = "abcccba";
    LexerInterpreter lexEngine = g.createLexerInterpreter(new ANTLRInputStream(input));
    CommonTokenStream stream = new CommonTokenStream(lexEngine);
    stream.fill();
    TokenStreamRewriter tokens = new TokenStreamRewriter(stream);
    tokens.replace(0, 6, "x");
    String result = tokens.getText();
    String expecting = "x";
    assertEquals(expecting, result);
  }
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                       "C : 'c';\n");
    String input = "abcccba";
    LexerInterpreter lexEngine = g.createLexerInterpreter(new ANTLRInputStream(input));
    CommonTokenStream stream = new CommonTokenStream(lexEngine);
    stream.fill();
    TokenStreamRewriter tokens = new TokenStreamRewriter(stream);
    tokens.replace(2, 4, "xyz");
    String result = tokens.getText(Interval.of(0, 6));
    String expecting = "abxyzba";
    assertEquals(expecting, result);
  }
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                       "C : 'c';\n");
    String input = "abcccba";
    LexerInterpreter lexEngine = g.createLexerInterpreter(new ANTLRInputStream(input));
    CommonTokenStream stream = new CommonTokenStream(lexEngine);
    stream.fill();
    TokenStreamRewriter tokens = new TokenStreamRewriter(stream);
    tokens.replace(2, 4, "xyz");
    tokens.replace(3, 5, "foo");
    stream.fill();
// overlaps, error
    Exception exc = null;
    try {
      tokens.getText();
    }
    catch (IllegalArgumentException iae) {
      exc = iae;
    }
    String expecting = "replace op boundaries of <ReplaceOp@[@3,3:3='c',<3>,1:3]..[@5,5:5='b',<2>,1:5]:\"foo\"> overlap with previous <ReplaceOp@[@2,2:2='c',<3>,1:2]..[@4,4:4='c',<3>,1:4]:\"xyz\">";
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Related Classes of org.antlr.v4.runtime.TokenStreamRewriter$ReplaceOp

  • org.antlr.runtime.ANTLRFileStream
  • org.antlr.runtime.ANTLRStringStream
  • org.antlr.runtime.CharStream
  • org.antlr.runtime.CommonToken
  • org.antlr.runtime.tree.CommonTree
  • org.antlr.runtime.tree.CommonTreeNodeStream
  • org.antlr.runtime.tree.Tree
  • org.antlr.runtime.tree.TreeVisitor
  • org.antlr.runtime.tree.TreeVisitorAction
  • org.antlr.v4.analysis.LeftRecursionDetector
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