[jira] [Commented] (TEXT-47) WordUtils.capitalize() can't handle 1:M conversions

["Aishwarya Vasudevan (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TEXT-47?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16413377#comment-16413377 ] 

Aishwarya Vasudevan commented on TEXT-47:
-----------------------------------------

Why should we use Character.toTitleCase() ? Why can't we use String's toUpperCase() ?

> WordUtils.capitalize() can't handle 1:M conversions
> ---------------------------------------------------
>
>                 Key: TEXT-47
>                 URL: https://issues.apache.org/jira/browse/TEXT-47
>             Project: Commons Text
>          Issue Type: Bug
>            Reporter: Duncan Jones
>            Priority: Major
>             Fix For: 1.x
>
>
> Some case conversions are not 1:1, for instance the German letter ß, which is normally capitalised to 'SS'.
> {code:java}
> // Failing test
> assertEquals("SS", WordUtils.capitalize("\u00DF"));
> {code}
> If we were using upper case and not title case, a solution such as the following would work:
> {code:java}
> public static String capitalize(final String str, final char... delimiters) {
>     final int delimLen = delimiters == null ? -1 : delimiters.length;
>     if (StringUtils.isEmpty(str) || delimLen == 0) {
>         return str;
>     }
>     final StringBuffer buffer = new StringBuffer(str.length());
>     final char[] chars = str.toCharArray();
>     boolean capitalizeNext = true;
>     for (int i = 0; i < chars.length; i++) {
>         final char ch = chars[i];
>         if (isDelimiter(ch, delimiters)) {
>             capitalizeNext = true;
>             buffer.append(ch);
>         } else if (capitalizeNext) {
>             // Use ENGLISH locale to be backwards compatible with previous releases, which
>             // used Character.toUpperCase()
>             buffer.append(String.valueOf(ch).toUpperCase(Locale.ENGLISH));
>             capitalizeNext = false;
>         } else {
>             buffer.append(ch);
>         }
>     }
>     return buffer.toString();
> }
> {code}
> ... but as we use title case, we can't use the String class to convert for us.



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