Improve autocomplete search for pages

[annda]

Fixes #579 and #593

[annda]

Also addresses #622 by adding regex capability in new filter config.

[splitbrain]

Currently the regex only is applied to the namespace, not the whole ID. I guess that makes sense from the name of the configuration (namespace). More useful IMHO would be a match against the whole ID? Maybe we should think about how we could rename the config without losing existing configuration.

I am also not convinced that we need to differentiate between regex and non-regex configs. Any valid previous configuration should still be a valid regex, so why not always treat the config as regex and add the delimiters ourselves?

[annda]

Currently the regex only is applied to the namespace, not the whole ID. I guess that makes sense from the name of the configuration (namespace). More useful IMHO would be a match against the whole ID? Maybe we should think about how we could rename the config without losing existing configuration.

The suggestion makes a lot of sense. I tried to introduce a new option filter and, for backwards compatibility, fill it with the old namespace in the background. But it's difficult to migrate field configs this way, since they explicitly throw out any unknown keys in

dokuwiki-plugin-struct/types/AbstractBaseType.php

Line 101 in 7fe2cdf

protected function mergeConfig($current, &$config)

Do you have an idea how to migrate a config option another way?

[splitbrain]

Hmm maybe overwrite mergeConfig() for the Page type?

[annda]

I converted namespace and postfix to filter. Can you take another look?

[splitbrain]

LGTM