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$EnableGUIButtons

When set to '1', turns on the graphical buttons in the "Edit Page" form.

        # turn on graphical edit buttons
        $EnableGUIButtons = 1;

$EnablePostAuthorRequired

When set to '1', posting of pages requires the author to provide an author name. Otherwise, authors can post without a name.

        # require authors to provide a name
        $EnablePostAuthorRequired = 1; 

$EnableDrafts

When set to '1', enables the "Save as draft" button and built-in handling of "draft" versions of pages.

        # turn on draft edits
        $EnableDrafts = 1;

$DraftSuffix

The suffix to use for draft versions of pages (default "-Draft").

$DiffKeepDays

The $DiffKeepDays variable sets the minimum length of time that a page's revision history is kept. By default it is set to 3650 days, or a little less than ten years. You can change this value in a customization file to be something smaller, e.g.:

        $DiffKeepDays = 30; # keep revisions at least 30 days

Note that a specific page revision isn't removed from the page until the first edit after the time specified by $DiffKeepDays has elapsed. Thus, it's still possible for some pages to have revisions older than $DiffKeepDays -- such revisions will be removed the next time those pages are edited.

$DeleteKeyPattern

The pattern used to determine if a page should be deleted. The default is to remove pages that contain only the single word "delete" (and optional spaces).

        # change delete word to "remove"
        $DeleteKeyPattern = "^\\s*remove\\s*$";
        # delete any page with no visible text, i.e., empty
        $DeleteKeyPattern = "^\\s*$";

$EditTemplatesFmt

Name of the page (or an array of names) to be used as the default text for any newly created pages.

        # Use 'Main.NewPageTemplate' as default text of all new pages
        $EditTemplatesFmt = 'Main.NewPageTemplate';
        # Use 'Template' in the current group for new pages
        $EditTemplatesFmt = '$Group.Template';
        # Use 'Template' in the current group if it exists, otherwise
        # use 'Main.NewPageTemplate'
        $EditTemplatesFmt = array('$Group.Template', 'Main.NewPageTemplate');

$DefaultPageTextFmt

The text that should be displayed when browsing non-existent pages. As default PmWiki uses the contents of Site.PageNotFound

        $DefaultPageTextFmt = '(:include $[{$SiteGroup}.PageNotFound]:)'; 

$EditFunctions

This array contains the sequence of functions that are called when a page is edited. It can be customized to provide additional functions to be called as part of the editing process. The standard setting is:

        $EditFunctions = array('EditTemplates', 'RestorePage', 'ReplaceOnSave', 
          'SaveAttributes', 'PostPage', 'PostRecentChanges', 'PreviewPage'); 

$ROSPatterns

With this array you can give a pattern as key and a text which should replace it when saving an edited text. See Cookbook:ROSPatterns for examples.

$IsPagePosted

Set to a true value if the page is actually saved (e.g., this is used to tell the RecentChanges handlers if they need to update).

$PageEditFmt

By default, this is the HTML to be displayed for an edit form.

$HandleEditFmt

Like $HandleBrowseFmt, this specifies the entire output format for ?action=edit for a page.

$EditRedirectFmt

The page to which an author is sent after pressing "Save" or "Cancel" from an edit form. Defaults to "$FullName", which sends the author to the page just edited, but can be changed to specify another page.

        # redirect to Main.HomePage
        $EditRedirectFmt = 'Main.HomePage';  
        # redirect to HomePage of current group
        $EditRedirectFmt = '{$Group}.HomePage';