mirror of
https://github.com/explosion/spaCy.git
synced 2024-09-21 19:39:13 +03:00
145 lines
3.6 KiB
Python
145 lines
3.6 KiB
Python
# encoding: utf8
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from __future__ import unicode_literals
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import os
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import io
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import json
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import re
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import os.path
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import pathlib
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import six
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from .attrs import TAG, HEAD, DEP, ENT_IOB, ENT_TYPE
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try:
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basestring
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except NameError:
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basestring = str
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LANGUAGES = {}
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_data_path = pathlib.Path(__file__).parent / 'data'
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def set_lang_class(name, cls):
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global LANGUAGES
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LANGUAGES[name] = cls
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def get_lang_class(name):
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lang = re.split('[^a-zA-Z0-9]', name, 1)[0]
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if lang not in LANGUAGES:
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raise RuntimeError('Language not supported: %s' % lang)
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return LANGUAGES[lang]
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def get_data_path():
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return _data_path
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def set_data_path(path):
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global _data_path
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if isinstance(path, basestring):
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path = pathlib.Path(path)
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_data_path = path
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def or_(val1, val2):
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if val1 is not None:
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return val1
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elif callable(val2):
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return val2()
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else:
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return val2
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def match_best_version(target_name, target_version, path):
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path = path if not isinstance(path, basestring) else pathlib.Path(path)
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if not path.exists():
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return None
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matches = []
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for data_name in path.iterdir():
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name, version = split_data_name(data_name.parts[-1])
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if name == target_name and constraint_match(target_version, version):
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matches.append((tuple(float(v) for v in version.split('.')), data_name))
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if matches:
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return pathlib.Path(max(matches)[1])
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else:
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return None
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def split_data_name(name):
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return name.split('-', 1) if '-' in name else (name, '')
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def constraint_match(constraint_string, version):
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# From http://github.com/spacy-io/sputnik
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if not constraint_string:
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return True
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constraints = [c.strip() for c in constraint_string.split(',') if c.strip()]
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for c in constraints:
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if not re.match(r'[><=][=]?\d+(\.\d+)*', c):
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raise ValueError('invalid constraint: %s' % c)
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return all(semver.match(version, c) for c in constraints)
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def read_regex(path):
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path = path if not isinstance(path, basestring) else pathlib.Path(path)
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with path.open() as file_:
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entries = file_.read().split('\n')
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expression = '|'.join(['^' + re.escape(piece) for piece in entries if piece.strip()])
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return re.compile(expression)
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def compile_prefix_regex(entries):
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expression = '|'.join(['^' + re.escape(piece) for piece in entries if piece.strip()])
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return re.compile(expression)
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def compile_suffix_regex(entries):
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expression = '|'.join([piece + '$' for piece in entries if piece.strip()])
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return re.compile(expression)
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def compile_infix_regex(entries):
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expression = '|'.join([piece for piece in entries if piece.strip()])
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return re.compile(expression)
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def update_exc(exc, additions):
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overlap = set(exc.keys()).intersection(set(additions))
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assert not overlap, overlap
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exc.update(additions)
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def normalize_slice(length, start, stop, step=None):
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if not (step is None or step == 1):
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raise ValueError("Stepped slices not supported in Span objects."
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"Try: list(tokens)[start:stop:step] instead.")
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if start is None:
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start = 0
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elif start < 0:
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start += length
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start = min(length, max(0, start))
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if stop is None:
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stop = length
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elif stop < 0:
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stop += length
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stop = min(length, max(start, stop))
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assert 0 <= start <= stop <= length
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return start, stop
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def utf8open(loc, mode='r'):
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return io.open(loc, mode, encoding='utf8')
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def check_renamed_kwargs(renamed, kwargs):
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for old, new in renamed.items():
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if old in kwargs:
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raise TypeError("Keyword argument %s now renamed to %s" % (old, new))
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