# Some code copied from ebu/benchmarkstt (by original author), see
# https://github.com/ebu/benchmarkstt/blob/master/LICENCE.md
from functools import partial, wraps
[docs]class DeferredCallback:
"""Simple helper class to defer the execution of formatting functions until it is needed"""
def __init__(self, cb, *args, **kwargs):
self._cb = wraps(cb)(partial(cb, *args, **kwargs))
def __str__(self):
return self._cb()
def __repr__(self):
return '<%s:%s>' % (self.__class__.__name__, repr(self._cb()))
[docs]class DeferredList:
def __init__(self, cb):
self._cb = cb
self._list = None
@property
def list(self):
if self._list is None:
self._list = self._cb()
return self._list
def __getitem__(self, item):
return self.list[item]
[docs]def make_printable(char):
"""
Return printable representation of ascii/utf-8 control characters
:param str char:
:return str:
"""
if not len(char):
return ''
if len(char) > 1:
return ''.join(list(map(make_printable, char)))
codepoint = ord(char)
if 0x00 <= codepoint <= 0x1f or 0x7f <= codepoint <= 0x9f:
return chr(0x2400 | codepoint)
return char if char != ' ' else 'ยท'