Python prompt_toolkit.filters.Filter() Examples

The following are 4 code examples of prompt_toolkit.filters.Filter(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module prompt_toolkit.filters , or try the search function .
Example #1
Source File: application.py    From python-prompt-toolkit with BSD 3-Clause "New" or "Revised" License 6 votes vote down vote up 
def _create_merged_style(self, include_default_pygments_style: Filter) -> BaseStyle:
        """
        Create a `Style` object that merges the default UI style, the default
        pygments style, and the custom user style.
        """
        dummy_style = DummyStyle()
        pygments_style = default_pygments_style()

        @DynamicStyle
        def conditional_pygments_style() -> BaseStyle:
            if include_default_pygments_style():
                return pygments_style
            else:
                return dummy_style

        return merge_styles(
            [
                default_ui_style(),
                conditional_pygments_style,
                DynamicStyle(lambda: self.style),
            ]
        )
Example #2
Source File: test_filter.py    From python-prompt-toolkit with BSD 3-Clause "New" or "Revised" License 6 votes vote down vote up 
def test_to_filter():
    f1 = to_filter(True)
    f2 = to_filter(False)
    f3 = to_filter(Condition(lambda: True))
    f4 = to_filter(Condition(lambda: False))

    assert isinstance(f1, Filter)
    assert isinstance(f2, Filter)
    assert isinstance(f3, Filter)
    assert isinstance(f4, Filter)
    assert f1()
    assert not f2()
    assert f3()
    assert not f4()

    with pytest.raises(TypeError):
        to_filter(4)
Example #3
Source File: test_filter.py    From python-prompt-toolkit with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
def test_or():
    for a in (True, False):
        for b in (True, False):
            c1 = Condition(lambda: a)
            c2 = Condition(lambda: b)
            c3 = c1 | c2

            assert isinstance(c3, Filter)
            assert c3() == a or b
Example #4
Source File: test_filter.py    From python-prompt-toolkit with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
def test_and():
    for a in (True, False):
        for b in (True, False):
            c1 = Condition(lambda: a)
            c2 = Condition(lambda: b)
            c3 = c1 & c2

            assert isinstance(c3, Filter)
            assert c3() == (a and b)