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

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

    [ https://issues.apache.org/jira/browse/CODEC-250?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16624666#comment-16624666 ] 

Alex Volodko commented on CODEC-250:
------------------------------------

I will provide a PR for the fix including a new test

> 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: 1.5, 1.11
>            Reporter: Alex Volodko
>            Priority: Major
>
> 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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