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From "Henri Yandell (JIRA)" <>
Subject [jira] Commented: (LANG-510) Convert StringUtils API to take CharSequence
Date Sun, 07 Feb 2010 07:20:28 GMT


Henri Yandell commented on LANG-510:

Played with changing left/right/mid. Issue here, same substring will have, is that it changes
the method from String left(String) to CharSequence left(CharSequence) due to the reliance
on subSequence.

That means using code is going to have to start casting. Ugh. That will be a general issue
for any String manipulation as opposed to query API. For these methods we are going to need
to do overloads:

    String doFoo(String)
    CharSequence doFoo(CharSequence)

Smells likely to be copy and paste code. Ugh again.

> Convert StringUtils API to take CharSequence
> --------------------------------------------
>                 Key: LANG-510
>                 URL:
>             Project: Commons Lang
>          Issue Type: Improvement
>          Components: lang.*
>            Reporter: Henri Yandell
>             Fix For: 3.0
>         Attachments: LANG-510-indexOf.patch
> Wherever possible, use CharSequence and not String in the StringUtils API.
> substring can go to subSequence inside code. The general substring method can be replaced
with a subSequence method and substring deprecated(?). One question is whether to implement
a CharSequence.indexOf type method. Given that it's merely a walking method(?!?), this might
be quite handy and would allow a bunch of StringUtils methods to move over.

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