Package org.antlr.runtime

Examples of org.antlr.runtime.TokenRewriteStream.replace()

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      "C : 'c';\n");
    CharStream input = new ANTLRStringStream("abcccba");
    Interpreter lexEngine = new Interpreter(g, input);
    TokenRewriteStream tokens = new TokenRewriteStream(lexEngine);
    tokens.fill();
    tokens.replace(0, 6, "x");
    String result = tokens.toString();
    String expecting = "x";
    assertEquals(expecting, result);
  }
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      "C : 'c';\n");
    CharStream input = new ANTLRStringStream("abcccba");
    Interpreter lexEngine = new Interpreter(g, input);
    TokenRewriteStream tokens = new TokenRewriteStream(lexEngine);
    tokens.fill();
    tokens.replace(2, 4, "xyz");
    String result = tokens.toString(0,6);
    String expecting = "abxyzba";
    assertEquals(expecting, result);
  }
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      "C : 'c';\n");
    CharStream input = new ANTLRStringStream("abc");
    Interpreter lexEngine = new Interpreter(g, input);
    TokenRewriteStream tokens = new TokenRewriteStream(lexEngine);
    tokens.LT(1); // fill buffer
    tokens.replace(0, "x");
    String result = tokens.toString();
    String expecting = "xbc";
    assertEquals(expecting, result);
  }
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      "C : 'c';\n");
    CharStream input = new ANTLRStringStream("abc");
    Interpreter lexEngine = new Interpreter(g, input);
    TokenRewriteStream tokens = new TokenRewriteStream(lexEngine);
    tokens.LT(1); // fill buffer
    tokens.replace(2, "x");
    String result = tokens.toString();
    String expecting = "abx";
    assertEquals(expecting, result);
  }
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      "C : 'c';\n");
    CharStream input = new ANTLRStringStream("abc");
    Interpreter lexEngine = new Interpreter(g, input);
    TokenRewriteStream tokens = new TokenRewriteStream(lexEngine);
    tokens.LT(1); // fill buffer
    tokens.replace(1, "x");
    String result = tokens.toString();
    String expecting = "axc";
    assertEquals(expecting, result);
  }
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        // Input:  x = 3 * 0;
        CharStream input = new ANTLRStringStream("x = 3 * 0;");
        Interpreter lexEngine = new Interpreter(g, input);
        TokenRewriteStream tokens = new TokenRewriteStream(lexEngine);
        tokens.LT(1); // fill buffer
        tokens.replace(4, 8, "0"); // replace 3 * 0 with 0

        String result = tokens.toOriginalString();
        String expecting = "x = 3 * 0;";
        assertEquals(expecting, result);

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        String result = tokens.toOriginalString();
        String expecting = "x = 3 * 0 + 2 * 0;";
        assertEquals(expecting, result);

        tokens.replace(4, 8, "0"); // replace 3 * 0 with 0
        result = tokens.toString();
        expecting = "x = 0 + 2 * 0;";
        assertEquals(expecting, result);

        result = tokens.toString(0,17);
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      "C : 'c';\n");
    CharStream input = new ANTLRStringStream("abc");
    Interpreter lexEngine = new Interpreter(g, input);
    TokenRewriteStream tokens = new TokenRewriteStream(lexEngine);
    tokens.LT(1); // fill buffer
    tokens.replace(1, "x");
    tokens.replace(1, "y");
    String result = tokens.toString();
    String expecting = "ayc";
    assertEquals(expecting, result);
  }
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    CharStream input = new ANTLRStringStream("abc");
    Interpreter lexEngine = new Interpreter(g, input);
    TokenRewriteStream tokens = new TokenRewriteStream(lexEngine);
    tokens.LT(1); // fill buffer
    tokens.replace(1, "x");
    tokens.replace(1, "y");
    String result = tokens.toString();
    String expecting = "ayc";
    assertEquals(expecting, result);
  }
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    CharStream input = new ANTLRStringStream("abc");
    Interpreter lexEngine = new Interpreter(g, input);
    TokenRewriteStream tokens = new TokenRewriteStream(lexEngine);
    tokens.LT(1); // fill buffer
        tokens.insertBefore(0, "_");
        tokens.replace(1, "x");
    tokens.replace(1, "y");
    String result = tokens.toString();
    String expecting = "_ayc";
    assertEquals(expecting, result);
  }
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