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# -*- coding: utf-8 -*-
"""\
This module is intended to replicate some of the functionality
from the fastnumbers module in the event that module is not
installed.
"""
from __future__ import (print_function, division,
unicode_literals, absolute_import)
# Std. lib imports.
import re
float_re = re.compile(r'[-+]?\d*\.?\d+(?:[eE][-+]?\d+)?$')
int_re = re.compile(r'[-+]?\d+$')
def fast_float(x, regex_matcher=float_re.match):
"""Convert a string to a float quickly"""
return float(x) if regex_matcher(x) else x
def fast_int(x, regex_matcher=int_re.match):
"""\
Convert a string to a int quickly, return input as-is if not possible.
"""
return int(x) if regex_matcher(x) else x
def isreal(x, ntypes=set([int, float])):
"""Returns true if the input is a real number, false otherwise."""
return type(x) in ntypes
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