[pmwiki-devel] Group.Name pattern

[Patrick R. Michaud]

On Fri, Dec 08, 2006 at 05:43:49PM +0000, Hans wrote:
> I am looking for a good way to match a target pagename against
> patterns in an array.
> [...]

Would the (built-in) MatchPageNames() function work for you?
It understands arrays of patterns, where the patterns can be
either regular expressions or wildcards.

The format of MatchPageNames() is:

    $newlist = MatchPageNames($oldlist, $patterns)

where 
   $oldlist is a pagename or array of pagenames, and
   $patterns is an array of patterns to be matched
      if a pattern starts with a slash, 
         the pagename must match the pattern
      else if the pattern starts with an exclamation point, 
         the pagename must not match the pattern
      else the pagename must match the wildcard pattern

Thus:

    # all pages in the Category group, wildcard
    $list = MatchPageNames($list, 'Category.*')

    # another way of saying the above, regex
    $list = MatchPageNames($list, '/^Category\\./')

    # all pages except "junk" pages:
    $list = MatchPageNames($list, array(
              '!\\.(RecentChanges|Group(Header|Footer|Attributes))$!',
              '!^(PmWiki|Site)\\.!'));

    # same as above using wildcards
    $list = MatchPageNames($list, array(
              '-*.RecentChanges',
              '-*.GroupHeader,-*.GroupFooter,-*.GroupAttributes',
              '-PmWiki.*,-Site.*'));

    # all pages in Category and Main except junk pages
    # (mixed wildcards and regexes)
    $list = MatchPageNames($list, array(
              'Category.*,Main.*',
              '!\\.(RecentChanges|Group(Header|Footer|Attributes))$!'));

Pm