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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