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Diffstat (limited to 'third_party/python/Jinja2/src/jinja2/tests.py')
| -rw-r--r-- | third_party/python/Jinja2/src/jinja2/tests.py | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/third_party/python/Jinja2/src/jinja2/tests.py b/third_party/python/Jinja2/src/jinja2/tests.py new file mode 100644 index 0000000000..fabd4ce51b --- /dev/null +++ b/third_party/python/Jinja2/src/jinja2/tests.py @@ -0,0 +1,215 @@ +# -*- coding: utf-8 -*- +"""Built-in template tests used with the ``is`` operator.""" +import decimal +import operator +import re + +from ._compat import abc +from ._compat import integer_types +from ._compat import string_types +from ._compat import text_type +from .runtime import Undefined + +number_re = re.compile(r"^-?\d+(\.\d+)?$") +regex_type = type(number_re) +test_callable = callable + + +def test_odd(value): + """Return true if the variable is odd.""" + return value % 2 == 1 + + +def test_even(value): + """Return true if the variable is even.""" + return value % 2 == 0 + + +def test_divisibleby(value, num): + """Check if a variable is divisible by a number.""" + return value % num == 0 + + +def test_defined(value): + """Return true if the variable is defined: + + .. sourcecode:: jinja + + {% if variable is defined %} + value of variable: {{ variable }} + {% else %} + variable is not defined + {% endif %} + + See the :func:`default` filter for a simple way to set undefined + variables. + """ + return not isinstance(value, Undefined) + + +def test_undefined(value): + """Like :func:`defined` but the other way round.""" + return isinstance(value, Undefined) + + +def test_none(value): + """Return true if the variable is none.""" + return value is None + + +def test_boolean(value): + """Return true if the object is a boolean value. + + .. versionadded:: 2.11 + """ + return value is True or value is False + + +def test_false(value): + """Return true if the object is False. + + .. versionadded:: 2.11 + """ + return value is False + + +def test_true(value): + """Return true if the object is True. + + .. versionadded:: 2.11 + """ + return value is True + + +# NOTE: The existing 'number' test matches booleans and floats +def test_integer(value): + """Return true if the object is an integer. + + .. versionadded:: 2.11 + """ + return isinstance(value, integer_types) and value is not True and value is not False + + +# NOTE: The existing 'number' test matches booleans and integers +def test_float(value): + """Return true if the object is a float. + + .. versionadded:: 2.11 + """ + return isinstance(value, float) + + +def test_lower(value): + """Return true if the variable is lowercased.""" + return text_type(value).islower() + + +def test_upper(value): + """Return true if the variable is uppercased.""" + return text_type(value).isupper() + + +def test_string(value): + """Return true if the object is a string.""" + return isinstance(value, string_types) + + +def test_mapping(value): + """Return true if the object is a mapping (dict etc.). + + .. versionadded:: 2.6 + """ + return isinstance(value, abc.Mapping) + + +def test_number(value): + """Return true if the variable is a number.""" + return isinstance(value, integer_types + (float, complex, decimal.Decimal)) + + +def test_sequence(value): + """Return true if the variable is a sequence. Sequences are variables + that are iterable. + """ + try: + len(value) + value.__getitem__ + except Exception: + return False + return True + + +def test_sameas(value, other): + """Check if an object points to the same memory address than another + object: + + .. sourcecode:: jinja + + {% if foo.attribute is sameas false %} + the foo attribute really is the `False` singleton + {% endif %} + """ + return value is other + + +def test_iterable(value): + """Check if it's possible to iterate over an object.""" + try: + iter(value) + except TypeError: + return False + return True + + +def test_escaped(value): + """Check if the value is escaped.""" + return hasattr(value, "__html__") + + +def test_in(value, seq): + """Check if value is in seq. + + .. versionadded:: 2.10 + """ + return value in seq + + +TESTS = { + "odd": test_odd, + "even": test_even, + "divisibleby": test_divisibleby, + "defined": test_defined, + "undefined": test_undefined, + "none": test_none, + "boolean": test_boolean, + "false": test_false, + "true": test_true, + "integer": test_integer, + "float": test_float, + "lower": test_lower, + "upper": test_upper, + "string": test_string, + "mapping": test_mapping, + "number": test_number, + "sequence": test_sequence, + "iterable": test_iterable, + "callable": test_callable, + "sameas": test_sameas, + "escaped": test_escaped, + "in": test_in, + "==": operator.eq, + "eq": operator.eq, + "equalto": operator.eq, + "!=": operator.ne, + "ne": operator.ne, + ">": operator.gt, + "gt": operator.gt, + "greaterthan": operator.gt, + "ge": operator.ge, + ">=": operator.ge, + "<": operator.lt, + "lt": operator.lt, + "lessthan": operator.lt, + "<=": operator.le, + "le": operator.le, +} |