reftype function, 317
regex (see patterns)
regexes (see patterns)
regexps (see patterns)
registry (Microsoft Windows), manipulating,
          398, 875
regular files, testing for, 28
re-initialization expressions, loops, 116

##</code><code>##

reftype function (attributes pragma), 317
regexes (see patterns)
regexps (see patterns)
registry (Microsoft Windows)
   manipulating, 398, 551, 875
   .pl extensions and, 490
regular expressions (see patterns)
regular files, testing for, 28