$action and $id

Inside of ewiki.php you'll see many occurrences of variables named $id and
$action. The $id refers to the current page, which usually is a string like
ThisPage+, ThatPage+, OrAnotherPage+.

Because just having pages wasn't believed to be sufficient enough, there
is also a way to do something with them. That is what the $action tells.
The most often used $action is "view" and is automatically assumed when
no other $action was specified in the current ewiki URL. For non-existent
pages alternatively the "edit" $action may get used instead.

So the $action now delegates control about a requested page to a subfunc
or plugin of ewiki, so the stored data of the page can be used for
something (viewing being again the most common thing to do with it).

"action/ForTheCurrentPage+" is how both often looks in conjunction (again:
if there is no "$action/" then "view/" will be assumed). Here the $action
appears in front of the page name separated by a slash. A pagename now can
contain slashes too, because ewiki can figure out, that "view/That/Page"
separates into the $action being "view" and $id is "That/Page" in this
example (the "view" gets mandatory in such cases).

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You cannot modify the README file, but anyhow any ideas or suggestion should as usually get filed on BugReports, UserSuggestions or even better the README.Discussion.