Embedding Captials is at the heart of how this variant of WikiWiki organizes links to other (internal) wiki pages.
The current rule for "recognized link patterns" is:
$link = "([0-9]*[A-ZÄÖÜ]([A-ZÄÖÜ]+[A-ZÄÖÜa-z0-9äöü]*)+)";
Helpful anti-examples: This_Is_Not_A_Link (fails on unusual character, i.e. underscore, "not [A-Z][a-z|0-9]")