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$WikiWordCountMax
The maximum number of times to convert each Wiki Word encountered on a page. Defaults to 1,000,000. Common settings for this variable are zero (disable Wiki Word links) and one (convert only the first occurrence of each Wiki Word).
        $WikiWordCountMax = 0;     # disable Wiki Word links
        $WikiWordCountMax = 1;     # convert only first Wiki Word

$WikiWordCount
An array that allows the number of Wiki Word conversions to be set on a per-Wiki Word basis. The default is to use $WikiWordCountMax unless a value is set in this array. By default Pm Wiki sets $WikiWordCount['Pm Wiki']=1 to limit the number of conversions of "Pm Wiki".
        $WikiWordCount['PhD']=0;     # Don't convert "PhD"
        $WikiWordCount['Wiki Word']=5;  # Convert Wiki Word 5 times
        # the following lines keep a page from linking to itself
        $title = FmtPageName('$Title_',$pagename);
        $WikiWordCount[$title]=0;    

$PagePathFmt
TODO. But look at Cookbook:PagePaths for some ideas.

$LinkPageExistsFmt
The (HTML) string to output for links to already existing wiki pages. Defaults to
        \$LinkText

$LinkPageCreateFmt
The (HTML) string to output for links to non-existent wiki pages. The default is to add a '?' after the link text with a link to the page edit/create form. Defaults to
        \$LinkText
        ?

$LinkPageCreateSpaceFmt
Same as $LinkPageCreateFmt, but used when the link text has a space in it.

$LinkPageSelfFmt
The (HTML) string to output for self-referencing links (i.e. links to the page itself). Defaults to
        \$LinkText

$UrlLinkFmt
The (HTML) string to output for URL-links that begin with 'http:', 'ftp:', etc. Defaults to
        \$LinkText

$InterMapFiles
An array consisting a list of files and pages containing Inter Map entries to be loaded (see CustomInterMap).

$MakePageNameFunction
Name of a custom function to replace MakePageName(), which converts strings into valid page names.

$MakePageNamePatterns
$MakePageNamePatterns is an array of regular expression replacements that is used to map the page link in a free link such as [[free link]] into a page name. Currently the default sequence is:
    "/'/" => '',                           # strip single-quotes
    "/[^$PageNameChars]+/" => ' ',         # convert non-alnums to spaces
    "/((^|[^-\\w])\\w)/e" 
      => "strtoupper('$1')",               # initial caps after spaces
    "/ /" => ''                            # strip spaces


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