Remove the jakarta-oro regex engine because:.

   - it is retired since 2010-09-01 [1] and the use of regex feature from java is encouraged [2].

   - Ant also considers that the Java's built-in regex package is likely the best choice going forward. [3]

   - Built-in regex package is available in Java since 1.4 (Feb 2002) [4].

This has been discussed in [5] and the consensus was to upgrade and simplify our framework.


According to my testing, the doc generated with the built-in parser or the oro parser are identical. (tested on Ubuntu 18.10, OpenJDK 1.8.0)

[1]: https://attic.apache.org/projects/jakarta-oro.html
[2]: http://jakarta.apache.org/oro/
[3]: https://ant.apache.org/manual/Types/regexp.html#implementation
[4]: https://en.wikipedia.org/wiki/Java_version_history#J2SE_1.4
[5]: https://lists.apache.org/thread.html/305487e28daff15b4f16e876b8fe56ba3ca95fd39853cf26b7170d1d@%3Cdocs.httpd.apache.org%3E

git-svn-id: https://svn.apache.org/repos/asf/httpd/docs-build/trunk@1853689 13f79535-47bb-0310-9956-ffa450edef68
4 files changed