-Provides an isNumber function that can test if a floating point number is a number -str_to_int can convert a spelled out integer (e.g. 'one hundred thirty five') to its numeric form (e.g. 135) -int_to_str can convert an integer into its spelled out form.
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###Written by Digital Sol
class UnknownKeyError(Exception):
pass
class RangeError(Exception):
pass
class FloatingPointError(Exception):
pass
def isNumber(value):
'''Return True if input is an integer or decimal number.'''
value = str(value)
decimal = False
for i in value:
if i == '.' and not decimal:
decimal = True
else:
try:
int(i)
except:
return False
return True
def str_to_int(sentence, return_int=True):
'''Returns spelled-out numbers as integers.
return_int: Return an integer rather than a string.'''
number_conv_table = {
'negative' : '0',
'' : '0',
'and' : '0',
'dollars' : '0',
'dollar' : '0',
'zero' : '0',
'one' : '1',
'two' : '2',
'three' : '3',
'four' : '4',
'five' : '5',
'six' : '6',
'seven' : '7',
'eight' : '8',
'nine' : '9',
'ten' : '10',
'eleven' : '11',
'twelve' : '12',
'thirteen' : '13',
'fourteen' : '14',
'fifteen' : '15',
'sixteen' : '16',
'seventeen' : '17',
'eighteen' : '18',
'nineteen' : '19',
'twenty' : '20',
'thirty' : '30',
'forty' : '40',
'fifty' : '50',
'sixty' : '60',
'seventy' : '70',
'eighty' : '80',
'ninety' : '90',
'hundred' : '00', #sub flag
'thousand' : '000', #flag
'k' : '000', #flag
'grand' : '000', #flag
'million' : '000000', #flag
'billion' : '000000000', #flag
'trillion' : '000000000000', #flag
'quadrillion' : '000000000000000', #flag
'quintillion' : '000000000000000000', #flag
'sextillion' : '000000000000000000000', #flag
'septillion' : '000000000000000000000000', #flag
'octillion' : '000000000000000000000000000', #flag
'nonillion' : '000000000000000000000000000000', #flag
'decillion' : '000000000000000000000000000000000', #flag
'undecillion' : '000000000000000000000000000000000000', #flag
'duodecillion' : '000000000000000000000000000000000000000', #flag
'tredecillion' : '000000000000000000000000000000000000000000', #flag
'quattuordecillion' : '000000000000000000000000000000000000000000000',
}#flag
flags = ['hundred', 'thousand', 'grand', 'million', 'billion', 'trillion',
'quadrillion', 'quintillion','sextillion', 'septillion', 'octillion',
'nonillion', 'decillion', 'undecillion', 'duodecillion', 'tredecillion',
'quattuordecillion', 'k']
sub_flags = ['hundred']
output = 0
section = 0
sections = []
hundred_flag = False #detected value 'hundred'
negative_flag = False #detected value 'negative'
currency_flag = False #detected value 'dollar'
sentence = sentence.replace('-', ' ').split(' ') #allow spaces and hyphens
lowered_sentence = []
for i in sentence:
lowered_sentence.append(i.lower())
sentence = lowered_sentence #create list of words in lowercase
for word in sentence:
sum_flag = True
if word in ['point', 'dot']:
raise FloatingPointError('Sentence must represent an integer.')
while True:
try:
number = number_conv_table[word]
if word == 'negative': #detect negative
negative_flag = True
if word in ['dollar', 'dollars', 'k']:
currency_flag = True
if return_int:
input('\nNOTICE: Currency will be represented as a string not an integer. *press enter*')
print()
return_int = False
break
except KeyError:
ref = word
print('\nWARNING:',word,'is not a valid key. Please replace it.')
word = str(input('Modify word: '))
print()
if word in flags: #merge if word is a flagged word
section = str(section)
section += number
if word in sub_flags: #do not yet append number
hundred_flag = True
else:
section = int(section) + int(number)
if word in flags and hundred_flag == False: #finalize section and append to list
sections.append(int(section))
section = 0
hundred_flag = False #reset flag
sections.append(int(section))
output = sum(sections)
if negative_flag:
output = 0 - output
if currency_flag:
output = format(output,',d')
return '$'+output
if not return_int:
return format(output,',d')
else:
return output
def int_to_str(number):
'''Return integer as a spelled-out string.'''
if not isNumber(number) and '-' not in str(number):
raise ValueError('Input must be an integer')
number = str(number)
dollar_flag = False
negative_flag = False
while True:
if number[0] == '$':
dollar_flag = True
number = number[1:]
elif number[0] == '-':
negative_flag = True
number = number[1:]
else:
break
number_conv_table = {
'-' : 'negative',
'$' : 'dollar',
'0' : 'zero',
'1' : 'one',
'2' : 'two',
'3' : 'three',
'4' : 'four',
'5' : 'five',
'6' : 'six',
'7' : 'seven',
'8' : 'eight',
'9' : 'nine',
}
number_conv_table_spec = {
'0' : 'zero',
'1' : 'zero',
'2' : 'twenty',
'3' : 'thirty',
'4' : 'forty',
'5' : 'fifty',
'6' : 'sixty',
'7' : 'seventy',
'8' : 'eighty',
'9' : 'ninety',
}
number_conv_table_ones = {
'0' : 'ten',
'1' : 'eleven',
'2' : 'twelve',
'3' : 'thirteen',
'4' : 'fourteen',
'5' : 'fifteen',
'6' : 'sixteen',
'7' : 'seventeen',
'8' : 'eighteen',
'9' : 'nineteen',
}
if str(number) in number_conv_table:
if negative_flag:
return 'negative '+number_conv_table[str(number)]
else:
return number_conv_table[str(number)]
number = number[::-1]
sectors = []
for i in range(0, len(number), 3):
sectors.append(number[i:i+3][::-1])
sectors.reverse()
flags = ['hundred', 'thousand', 'million', 'billion', 'trillion',
'quadrillion', 'quintillion','sextillion', 'septillion', 'octillion',
'nonillion', 'decillion', 'undecillion', 'duodecillion', 'tredecillion',
'quattuordecillion']
output = []
word = ''
hundred_flag = False
and_flag = False
tens_flag = False
sector_place = len(sectors)
if negative_flag:
output.append('negative')
for sector in sectors:
hundred_flag = False
if len(sector) == 3 and int(sector[0]) > 0:
hundred_flag = True
nums_place = len(sector)
for num in sector:
if nums_place == 1 and tens_flag:
word = number_conv_table_ones[num]
tens_flag = False
elif nums_place == 2:
if num == '1':
tens_flag = True
else:
word = number_conv_table_spec[num]
else:
word = number_conv_table[num]
if word != 'zero' and len(number) > 1 and not tens_flag:
output.append(word)
if hundred_flag:
output.append('hundred')
hundred_flag = False
if sector_place > 1 and nums_place == 1 and sector != '000':
if (sector_place - 1) < 16:
output.append(flags[sector_place-1])
else:
raise RangeError('Input number too large.')
nums_place -= 1
sector_place -= 1
if dollar_flag:
output.append('dollars')
return ' '.join(output)
|
Allows users to convert written out numbers (e.g. fifty eight thousand two hundred thirty three) to its numerical integer form (e.g 58253) and vice versa. Also provides a simple isNumber function that works for decimals.
