# coding: utf8 from __future__ import unicode_literals, print_function import os import io import json import re import os.path import pathlib import sys import textwrap try: basestring except NameError: basestring = str try: raw_input except NameError: # Python 3 raw_input = input LANGUAGES = {} _data_path = pathlib.Path(__file__).parent / 'data' def set_lang_class(name, cls): global LANGUAGES LANGUAGES[name] = cls def get_lang_class(name): lang = re.split('[^a-zA-Z0-9]', name, 1)[0] if lang not in LANGUAGES: raise RuntimeError('Language not supported: %s' % lang) return LANGUAGES[lang] def get_data_path(require_exists=True): if not require_exists: return _data_path else: return _data_path if _data_path.exists() else None def set_data_path(path): global _data_path if isinstance(path, basestring): path = pathlib.Path(path) _data_path = path def or_(val1, val2): if val1 is not None: return val1 elif callable(val2): return val2() else: return val2 def match_best_version(target_name, target_version, path): path = path if not isinstance(path, basestring) else pathlib.Path(path) if path is None or not path.exists(): return None matches = [] for data_name in path.iterdir(): name, version = split_data_name(data_name.parts[-1]) if name == target_name and constraint_match(target_version, version): matches.append((tuple(float(v) for v in version.split('.')), data_name)) if matches: return pathlib.Path(max(matches)[1]) else: return None def split_data_name(name): return name.split('-', 1) if '-' in name else (name, '') def constraint_match(constraint_string, version): # From http://github.com/spacy-io/sputnik if not constraint_string: return True constraints = [c.strip() for c in constraint_string.split(',') if c.strip()] for c in constraints: if not re.match(r'[><=][=]?\d+(\.\d+)*', c): raise ValueError('invalid constraint: %s' % c) return all(semver.match(version, c) for c in constraints) def read_regex(path): path = path if not isinstance(path, basestring) else pathlib.Path(path) with path.open() as file_: entries = file_.read().split('\n') expression = '|'.join(['^' + re.escape(piece) for piece in entries if piece.strip()]) return re.compile(expression) def compile_prefix_regex(entries): if '(' in entries: # Handle deprecated data expression = '|'.join(['^' + re.escape(piece) for piece in entries if piece.strip()]) return re.compile(expression) else: expression = '|'.join(['^' + piece for piece in entries if piece.strip()]) return re.compile(expression) def compile_suffix_regex(entries): expression = '|'.join([piece + '$' for piece in entries if piece.strip()]) return re.compile(expression) def compile_infix_regex(entries): expression = '|'.join([piece for piece in entries if piece.strip()]) return re.compile(expression) def normalize_slice(length, start, stop, step=None): if not (step is None or step == 1): raise ValueError("Stepped slices not supported in Span objects." "Try: list(tokens)[start:stop:step] instead.") if start is None: start = 0 elif start < 0: start += length start = min(length, max(0, start)) if stop is None: stop = length elif stop < 0: stop += length stop = min(length, max(start, stop)) assert 0 <= start <= stop <= length return start, stop def utf8open(loc, mode='r'): return io.open(loc, mode, encoding='utf8') def check_renamed_kwargs(renamed, kwargs): for old, new in renamed.items(): if old in kwargs: raise TypeError("Keyword argument %s now renamed to %s" % (old, new)) def parse_package_meta(package_path, package, require=True): location = os.path.join(str(package_path), package, 'meta.json') if os.path.isfile(location): with io.open(location, encoding='utf8') as f: meta = json.load(f) return meta elif require: raise IOError("Could not read meta.json from %s" % location) else: return None def get_raw_input(description, default=False): """Get user input via raw_input / input and return input value. Takes a description for the prompt, and an optional default value that's displayed with the prompt.""" additional = ' (default: {d})'.format(d=default) if default else '' prompt = ' {d}{a}: '.format(d=description, a=additional) user_input = raw_input(prompt) return user_input def print_table(data, **kwargs): """Print data in table format. Can either take a list of tuples or a dictionary, which will be converted to a list of tuples.""" if type(data) == dict: data = list(data.items()) tpl_msg = '\n{msg}\n' tpl_title = '\n \033[93m{msg}\033[0m' tpl_row =" {:<15}" * len(data[0]) table = '\n'.join([tpl_row.format(l, v) for l, v in data]) if 'title' in kwargs and kwargs['title']: print(tpl_title.format(msg=kwargs['title'])) print(tpl_msg.format(msg=table)) def print_markdown(data, **kwargs): """Print listed data in GitHub-flavoured Markdown format so it can be copy-pasted into issues. Can either take a list of tuples or a dictionary, which will be converted to a list of tuples.""" def excl_value(value): # don't print value if it contains absolute path of directory # (i.e. personal info that shouldn't need to be shared) # other conditions can be included here if necessary if str(pathlib.Path(__file__).parent) in value: return True if type(data) == dict: data = list(data.items()) tpl_msg = "\n{msg}\n" tpl_title = "\n## {msg}" tpl_row = "* **{l}:** {v}" markdown = '\n'.join([tpl_row.format(l=l, v=v) for l, v in data if not excl_value(v)]) if 'title' in kwargs and kwargs['title']: print(tpl_title.format(msg=kwargs['title'])) print(tpl_msg.format(msg=markdown)) def print_msg(*text, **kwargs): """Print formatted message. Each positional argument is rendered as newline- separated paragraph. If kwarg 'title' exist, title is printed above the text and highlighted (using ANSI escape sequences manually to avoid unnecessary dependency).""" message = '\n\n'.join([_wrap_text(t) for t in text]) tpl_msg = '\n{msg}\n' tpl_title = '\n\033[93m{msg}\033[0m' if 'title' in kwargs and kwargs['title']: title = _wrap_text(kwargs['title']) print(tpl_title.format(msg=title)) print(tpl_msg.format(msg=message)) def _wrap_text(text): """Wrap text at given width using textwrap module. Indent should consist of spaces. Its length is deducted from wrap width to ensure exact wrapping.""" wrap_max = 80 indent = ' ' wrap_width = wrap_max - len(indent) return textwrap.fill(text, width=wrap_width, initial_indent=indent, subsequent_indent=indent, break_long_words=False, break_on_hyphens=False) def sys_exit(*messages, **kwargs): """Performs SystemExit. For modules used from the command line, like download and link. To print message, use the same arguments as for print_msg().""" if messages: print_msg(*messages, **kwargs) sys.exit(0)