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From "Sebb (JIRA)" <j...@apache.org>
Subject [jira] [Reopened] (CODEC-199) Bug in HW rule in Soundex
Date Thu, 30 Mar 2017 12:21:41 GMT

     [ https://issues.apache.org/jira/browse/CODEC-199?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sebb reopened CODEC-199:
------------------------

Unfortunately the fix breaks binary compatibility.
It changes a public string constant.
That can cause problems because the Java compiler can inline constants, so code may fail to
pick up a new value.

> Bug in HW rule in Soundex
> -------------------------
>
>                 Key: CODEC-199
>                 URL: https://issues.apache.org/jira/browse/CODEC-199
>             Project: Commons Codec
>          Issue Type: Bug
>    Affects Versions: 1.10
>            Reporter: Yossi Tamari
>             Fix For: 1.11
>
>         Attachments: better.patch, soundex.patch
>
>
> The Soundex algorithm says that if two characters that map to the same code are separated
by H or W, the second one is not encoded.
> However, in the implementation (in Soundex.getMappingCode() line 191), a character that
is preceded by two characters that are either H or W, is not encoded, regardless of what the
last consonant was.
> Source: http://en.wikipedia.org/wiki/Soundex#American_Soundex



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