Examples of PsInput

org.axsl.ps.PsInput
Interface for objects that wish to be used as input to the PostScript interpreter. This interface is needed because a variety of file types may be used as input to a PostScript interpreter. For example, Type 1 font files are frequently packaged in operating-system-specific wrapper files that must be unwrapped (and sometimes decoded) before they can be consumed by the PostScript interpreter. This interface allows other classes to do that work and pass the results through to the interpreter. Please note that the implementing class is responsible for any buffering of the data for i/o efficiency purposes.

Examples of org.axsl.ps.PsInput

     * @throws PsOperatorException For PostScript operator errors.
     */
    @Test
    public void testCount01() throws PsInterpreterException4a, PsOperatorException {
        /* First example from the PSLRM, 2nd ed. */
        PsInput input = new PsStringInput("clear count");
        PsInterpreter4a interpreter = new PsInterpreter4a(input, null);
        interpreter.process();
        PsObject object = interpreter.getOperandStack().pop();
        assertTrue(object instanceof PsInteger);
        PsInteger psInteger = (PsInteger) object;

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Examples of org.axsl.ps.PsInput

     * @throws PsOperatorException For PostScript operator errors.
     */
    @Test
    public void testEq01() throws PsInterpreterException4a, PsOperatorException {
        /* First example from the PSLRM, 2nd ed. */
        PsInput input = new PsStringInput("4.0 4 eq");
        PsInterpreter4a interpreter = new PsInterpreter4a(input, null);
        interpreter.process();
        PsObject object = interpreter.getOperandStack().pop();
        assertTrue(object instanceof PsBoolean);
        PsBoolean psBoolean = (PsBoolean) object;

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Examples of org.axsl.ps.PsInput

     * @throws PsOperatorException For PostScript operator errors.
     */
    @Test
    public void testNe01() throws PsInterpreterException4a, PsOperatorException {
        /* First example (for "eq") from the PSLRM, 2nd ed. */
        PsInput input = new PsStringInput("4.0 4 ne");
        PsInterpreter4a interpreter = new PsInterpreter4a(input, null);
        interpreter.process();
        PsObject object = interpreter.getOperandStack().pop();
        assertTrue(object instanceof PsBoolean);
        PsBoolean psBoolean = (PsBoolean) object;

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Examples of org.axsl.ps.PsInput

     * @throws PsOperatorException For PostScript operator errors.
     */
    @Test
    public void testMatrix01() throws PsInterpreterException4a, PsOperatorException {
        /* First example from the PSLRM, 2nd ed. */
        final PsInput input = new PsStringInput("matrix");
        final PsInterpreter4a interpreter = new PsInterpreter4a(input, null);
        interpreter.process();
        final PsObject object = interpreter.getOperandStack().pop();
        assertTrue(object instanceof PsMatrix);
        final PsMatrix matrix = (PsMatrix) object;

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Examples of org.axsl.ps.PsInput

     */
    private void generalComparisonTest(final String comparisonOperation, final boolean isLessThan,
            final boolean isEqualTo, final boolean isGreaterThan) throws PsInterpreterException4a,
            PsOperatorException {
        /* Test number that is less. */
        PsInput input = new PsStringInput("2 3 " + comparisonOperation);
        PsInterpreter4a interpreter = new PsInterpreter4a(input, null);
        interpreter.process();
        assertEquals(1, interpreter.getOperandStack().size());
        PsObject object = interpreter.getOperandStack().pop();
        assertTrue(object instanceof PsBoolean);

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Examples of org.axsl.ps.PsInput

     * @throws PsInterpreterException4a For PostScript errors.
     * @throws PsOperatorException For PostScript operator errors.
     */
    private void generalBooleanTest(final String testString, final boolean expectedResult)
            throws PsInterpreterException4a, PsOperatorException {
        final PsInput input = new PsStringInput(testString);
        final PsInterpreter4a interpreter = new PsInterpreter4a(input, null);
        interpreter.process();
        final PsObject object = interpreter.getOperandStack().pop();
        assertTrue(object instanceof PsBoolean);
        assertEquals(expectedResult, ((PsBoolean) object).getValue());

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Examples of org.axsl.ps.PsInput

     * @throws PsInterpreterException4a For PostScript errors.
     * @throws PsOperatorException For PostScript operator errors.
     */
    @Test
    public void testVersion01() throws PsInterpreterException4a, PsOperatorException {
        final PsInput input = new PsStringInput("version");
        final PsInterpreter4a interpreter = new PsInterpreter4a(input, null);
        interpreter.process();
        assertEquals(1, interpreter.getOperandStack().size());
        final PsObject object = interpreter.getOperandStack().pop();
        assertTrue(object instanceof PsString);

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Examples of org.axsl.ps.PsInput

     * @throws PsOperatorException For PostScript operator errors.
     */
    @Test
    public void testCvr01() throws PsInterpreterException4a, PsOperatorException {
        /* Test a real. */
        PsInput input = new PsStringInput("9.2");
        PsInterpreter4a interpreter = new PsInterpreter4a(input, null);
        interpreter.process();
        PsObject object1 = interpreter.getOperandStack().peek();
        assertTrue(object1 instanceof PsReal);
        input = new PsStringInput("cvr");

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Examples of org.axsl.ps.PsInput

     * @throws PsInterpreterException4a For PostScript errors.
     * @throws PsOperatorException For PostScript operator errors.
     */
    @Test
    public void testClear01() throws PsInterpreterException4a, PsOperatorException {
        final PsInput input = new PsStringInput("1 2 3 clear");
        final PsInterpreter4a interpreter = new PsInterpreter4a(input, null);
        interpreter.process();
        assertEquals(0, interpreter.getOperandStack().size());
    }

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