34 lines
1.2 KiB
Python
34 lines
1.2 KiB
Python
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import re
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def find_substring_indexes(str1, str2):
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matches = re.compile(f'(?=({str1}))', re.IGNORECASE).finditer(str2)
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return [match.span()[0] for match in matches]
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def sub_string_matches(str1, str2, str3):
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matchIndexes = find_substring_indexes(str1, str2)
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offset = 0
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newString = str2
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for i in range(len(matchIndexes)):
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realIndex = matchIndexes[i] + offset
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try:
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if len(str3) - len(str1) - (matchIndexes[i+1] - matchIndexes[i]) > 0:
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reverseOffset = len(str3) - len(str1) - (matchIndexes[i+1] - matchIndexes[i])
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else:
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reverseOffset = 0
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except IndexError:
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reverseOffset = 0
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pass
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newString = newString[:realIndex] + str3 + newString[realIndex + len(str1) - reverseOffset:]
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offset += len(str3) - len(str1) + reverseOffset
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return newString
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if __name__ == "__main__":
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print(find_substring_indexes('iS', "Is this the real life? Is this just fantasy?"))
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print(find_substring_indexes(str1 = "oo", str2 = "Never let you go let me go. Never let me go ooo"))
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print(sub_string_matches(str1 = "iS", str2 = "Is this the real life? Is this just fantasy?", str3 = "cool"))
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print(sub_string_matches(str1 = "oo", str2 = "Never let you goooo let me goo. Never let me goo oooo", str3 = "cool"))
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