/
akstr_ends_with.py
68 lines (55 loc) · 2.34 KB
/
akstr_ends_with.py
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# BSD 3-Clause License; see https://github.com/scikit-hep/awkward/blob/main/LICENSE
from __future__ import annotations
import awkward as ak
from awkward._dispatch import high_level_function
from awkward._layout import HighLevelContext
__all__ = ("ends_with",)
@high_level_function(module="ak.str")
def ends_with(
array, pattern, *, ignore_case=False, highlevel=True, behavior=None, attrs=None
):
"""
Args:
array: Array-like data (anything #ak.to_layout recognizes).
pattern (str or bytes): Substring pattern to test against the ending
of each string in `array`.
ignore_case (bool): If True, perform a case-insensitive match;
otherwise, the match is case-sensitive.
highlevel (bool): If True, return an #ak.Array; otherwise, return
a low-level #ak.contents.Content subclass.
behavior (None or dict): Custom #ak.behavior for the output array, if
high-level.
attrs (None or dict): Custom attributes for the output array, if
high-level.
Returns True for every string in `array` if it ends with the given literal
suffix `pattern`. Depending upon the value of `ignore_case`, the matching
function will be case-insensitive.
Note: this function does not raise an error if the `array` does not
contain any string or bytestring data.
Requires the pyarrow library and calls
[pyarrow.compute.ends_with](https://arrow.apache.org/docs/python/generated/pyarrow.compute.ends_with.html).
"""
# Dispatch
yield (array,)
# Implementation
return _impl(array, pattern, ignore_case, highlevel, behavior, attrs)
def _impl(array, pattern, ignore_case, highlevel, behavior, attrs):
from awkward._connect.pyarrow import import_pyarrow_compute
pc = import_pyarrow_compute("h")
with HighLevelContext(behavior=behavior, attrs=attrs) as ctx:
layout = ctx.unwrap(
array,
allow_record=False,
allow_unknown=False,
primitive_policy="error",
string_policy="as-characters",
)
apply = ak.operations.str._get_ufunc_action(
pc.ends_with,
pc.ends_with,
bytestring_to_string=False,
ignore_case=ignore_case,
pattern=pattern,
)
out = ak._do.recursively_apply(layout, apply)
return ctx.wrap(out, highlevel=highlevel)