Modifying the path in place clobbers multiple wildcarded directory specifications

[hollasch]

For example

pathmatch  c:/srh/work/imagingnw/web/root/sportsphotography/200*/?*/pages/*001.html

will end up matching .../200_/_ instead. Seems like I need to make copies of the pattern to work with, rather than trying to be fancy and modify a single copy.

Also, I need to add code to handle the special case of a literal pattern, and bail directory enumeration at the first positive match.