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{| width='100%'
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| width='120' | '''Signatures'''
|{{Func|string:levenshtein|$string1 as xs:string, $string2 as xs:string|xs:double}}<br/>
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| '''Summary'''
|Computes the [https://en.wikipedia.org/wiki/Damerau%E2%80%93Levenshtein_distance Damerau-Levenshtein Distance] for two strings and returns a double value ({{Code|0.0}} - {{Code|1.0}}). The returned value is computed as follows:<br/>
* <code>1.0</code> – distance / max(length of strings)
* <code>1.0</code> is returned if the strings are equal; <code>0.0</code> is returned if the strings are too different.
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| '''Examples'''
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{| width='100%'
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| width='120' | '''Signatures'''
|{{Func|string:soundex|$string as xs:string|xs:string}}<br/>
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| '''Summary'''
|Computes the [https://en.wikipedia.org/wiki/Soundex Soundex] value for the specified string. The algorithm can be used to find and index English words with similar pronouncation.
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| '''Examples'''
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{| width='100%'
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| width='120' | '''Signatures'''
|{{Func|string:cologne-phonetic|$string as xs:string|xs:string}}<br/>
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| '''Summary'''
|Computes the [https://de.wikipedia.org/wiki/K%C3%B6lner_Phonetik Kölner Phonetik] value for the specified string. Similar to Soundex, the algorithm is used to find similarly pronounced words, but for the German language. As the first returned digit can be {{Code|0}}, the value is returned as string.
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| '''Examples'''
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