[ https://issues.apache.org/jira/browse/LANG-505?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12717203#action_12717203 ] 

Henri Yandell commented on LANG-505:
------------------------------------

unescapeJava was quite implementable - though I'm changing behaviour from passing on a last char being an escaping \ without a value to escape to it being removed (and in fact I think the correct behaviour would be an exception).

unescapeCsv + escapeCsv were hugely easy. Same for escapeJavaScript.

HTML and XML left, while I'm left wondering if all I'm doing is writing a very dumb Regexp engine and it would be better to replace the entire StringEscapeUtils with a RegexUtils that defines various standard Regexs and lets you build your own. While huge numbers of non-grouping alternation might be considered poor performance in a regex, I doubt it's any worse than my own code.

Will attach code for people's perusal.

> Rewrite StringEscapeUtils
> -------------------------
>
>                 Key: LANG-505
>                 URL: https://issues.apache.org/jira/browse/LANG-505
>             Project: Commons Lang
>          Issue Type: Task
>            Reporter: Henri Yandell
>             Fix For: 3.0
>
>
> I think StringEscapeUtils needs a strong rewrite. For each escape method (and unescape) there tend to be three or four types of escaping happening. So not being able to define which set of three or four apply is a pain point (and cause of bug reports due to different desired features).
> We should be offering basic functionality, but also allowing people to say "escape(Escapers.BASIC_XML, Escapers.LOW_UNICODE, Escapers.HIGH_UNICODE)".
> Also should delete escapeSql; it's a bad one imo. Dangerous in that it will lead people to not use PreparedStatement and given it only escapes ', it's not much use. Especially as different dialects escape that in different ways.
> Opening this ticket for discussion. 

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