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Posted to issues@commons.apache.org by "Henri Yandell (JIRA)" <ji...@apache.org> on 2009/04/09 10:19:13 UTC

[jira] Commented: (LANG-485) StringUtils/WordUtils camelize - underscore functionality

    [ https://issues.apache.org/jira/browse/LANG-485?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12697426#action_12697426 ] 

Henri Yandell commented on LANG-485:
------------------------------------

Easier to implement with the new splitByCharacterTypeCamelCase. Something like:

String[] arr = StringUtils.splitByCharacterTypeCamelCase(camelInput);
for(int i=0; i<arr; i++) arr.toUpperCase();
String output = StringUtils.join(arr, "_");


> StringUtils/WordUtils camelize -  underscore functionality
> ----------------------------------------------------------
>
>                 Key: LANG-485
>                 URL: https://issues.apache.org/jira/browse/LANG-485
>             Project: Commons Lang
>          Issue Type: New Feature
>            Reporter: Fabian Lange
>
> I recently came across a problem which I expected to be solved already by StringUtils or Word Utils.
> Some input like "MY_TINY_PROPERTY" needed to be converted to a bean name "myTinyProperty".
> The code I wrote for that (far from perfect) looks like this:
> private String toCamelCase(String value, boolean startWithLowerCase) {
> 	String[] strings = StringUtils.split(value.toLowerCase(), "_");
> 	for (int i = startWithLowerCase ? 1 : 0; i < strings.length; i++){
> 		strings[i] = StringUtils.capitalize(strings[i]);
> 	}
> 	return StringUtils.join(strings);
> }
> The way back would be a bit more complicated.
> If there is consensus that such a function could be useful, I am willing to create a patch. However I can see reasons for not creating such a functionality (especially with the way back) because requirements might differ. What is the commons approach here. Implement something for the 80% case?

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