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import re
def is_number(s):
try:
float(s.replace(',', '')) # Handles numbers with commas
return True
except ValueError:
return False
def text_to_int(textnum, numwords={}):
units = ['zero', 'one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight', 'nine',
'ten', 'eleven', 'twelve', 'thirteen', 'fourteen', 'fifteen', 'sixteen', 'seventeen', 'eighteen', 'nineteen']
tens = ['', '', 'twenty', 'thirty', 'forty', 'fifty', 'sixty', 'seventy', 'eighty', 'ninety']
scales = ['hundred', 'thousand', 'lac', 'million', 'billion', 'trillion'] # "lac" handled as 10^5
ordinal_words = {'first': 1, 'second': 2, 'third': 3, 'fourth': 4, 'fifth': 5, 'sixth': 6,
'seventh': 7, 'eighth': 8, 'ninth': 9, 'tenth': 10, 'eleventh': 11, 'twelfth': 12}
ordinal_endings = [('ieth', 'y'), ('th', '')]
if not numwords:
numwords['and'] = (1, 0) # Handle "one hundred and twenty"
for idx, word in enumerate(units):
numwords[word] = (1, idx)
for idx, word in enumerate(tens):
if word:
numwords[word] = (1, idx * 10)
for idx, word in enumerate(scales):
numwords[word] = (10 ** (5 if word == 'lac' else idx * 3 or 2), 0)
textnum = textnum.lower().replace('-', ' ') # Normalize input
words = textnum.split()
current = result = 0
curstring = ''
onnumber = False
lastunit = False
lastscale = False
decimal_part = []
is_decimal = False
def is_numword(x):
return is_number(x) or x in numwords
def from_numword(x):
if is_number(x):
return 0, int(x.replace(',', ''))
return numwords[x]
for word in words:
if word == 'point':
is_decimal = True
continue
for ending, replacement in ordinal_endings:
if word.endswith(ending):
word = f"{word[:-len(ending)]}{replacement}"
if word in ordinal_words:
scale, increment = (1, ordinal_words[word])
current = current * scale + increment
if scale > 100:
result += current
current = 0
onnumber = True
lastunit = False
lastscale = False
elif is_numword(word):
scale, increment = from_numword(word)
onnumber = True
if is_decimal:
decimal_part.append(str(increment))
continue
if lastunit and word not in scales:
curstring += str(result + current) + " "
result = current = 0
if scale > 1:
current = max(1, current)
current = current * scale + increment
if scale >= 100:
result += current
current = 0
lastscale = word in scales
lastunit = word in units
elif word == 'and' and lastscale:
continue # Ignore "and" when used in valid contexts
else:
if onnumber:
curstring += str(result + current) + " "
curstring += word + " "
result = current = 0
onnumber = False
lastunit = False
lastscale = False
if onnumber:
curstring += str(result + current)
if decimal_part:
curstring += '.' + ''.join(decimal_part)
return curstring.strip()
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