Last modified: 2014-01-20 20:57:02 UTC
It would be useful for the Special:Export page to accept wildcards in the list of pages, e.g. "Help:*" to export all help pages, or "MyProject*" to export all pages relating to a particular project you are working on (including sub-pages). To be 100% useful, this would need a special alias for the main namespace, e.g. a colon. This would mean that ":*" would export the entire main namespace, whilst "*" would export the whole wiki, and ":help*" would export pages in the main namespace beginning 'help', but nothing from the 'help' namespace. It would also be useful to have an option to 'include talk pages' so these do not need to be entered separately. (apologies if either of these features available, but I found no mention of them in the manual or interface text - which incidentally still claims that there is no 'import' function).
Mass compoment change: <some> -> Export/Import
Can you use a prefixindex (possibly using API) to get the titles, then feed that back to Special:Export?
See also Bug 22881 - Greatly improved Export and Import for 1.14.1 (with support for advanced page selection, exporting and importing file uploads, and detection of "conflicts" during import). There's a patch written by me which is related to or fixes your issue.
Change 108487 had a related patch set uploaded by Hydriz: (bug 3760) Export titles matching a wildcard https://gerrit.wikimedia.org/r/108487
