[jira] [Created] (CODEC-250) Wrong value calculated by Cologne Phonetic if a special character is placed between equal letters

["Alex Volodko (JIRA)" <ji...@apache.org>]

Alex Volodko created CODEC-250:
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             Summary: Wrong value calculated by Cologne Phonetic if a special character is placed between equal letters
                 Key: CODEC-250
                 URL: https://issues.apache.org/jira/browse/CODEC-250
             Project: Commons Codec
          Issue Type: Bug
    Affects Versions: 1.11, 1.5
            Reporter: Alex Volodko


The algorith for cologne phonetic is (simpilied):
 # Encode letter by letter from left to right according to the conversion table.
 # Remove all digits occurring more than once next to each other.
 # Remove all code "0" except at the beginning.

Characters which are not specified in conversion table (such as hyphens) are ignored. See https://en.wikipedia.org/wiki/Cologne_phonetics

If the input is "test-test" the step results will be:
 # 20822082
 # 2082082
 # 28282

The expected result for "test-test" is therefor 28282.

The actual result for "test-test" is 282{color:#FF0000}2{color}82.

This bug is caused by the fix from

[https://github.com/apache/commons-codec/commit/72c8759a22c6552a2dfcdf61b29729f981752879]

and is present since 1.5



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