Restructured the literals so that both the File Attribute and Sequence renaming tokens use same strings where they are common. ...

This is also going to be used to index into self.SortViews when doing sequence lookups.
Added code to catch the (illegal) situation where a user tries to rename the root of the file tree.
Made the rest of the 'stat' variables available as File Attribute renaming tokens.

Fixed typo that broke renaming token handling.

Factored the Tile Time renaming token processing code and made it table drive. ...

Setup scaffolding for Sequence renaming token handling.

Fixed bug in literal constants for mtime renaming tokens.

Redid existing Time Renaming Tokens and implemented all the remaining ones.

Implemented CDATE renaming token.

Fixed bug in Command Execution token processing that prevented the use of absolute path references.

Changed renaming templates: g -> GID, G -> GNAME, L -> LEN, F -> FNAME, u -> UID, U -> UNAME. ...

Upped MAXINCLUDES to 1000.
Cleaned up Usage() output.
Removed extraneous "]' option that was previously accepted by getopt() as legal.
Factored out the getopt() string as a literal at the top of the program.
Fixed bug in ProcessIncludes() so include symbol ignored if in context of a previous option argument.

Implmenented UID, Uname, GID, and Gname renaming tokens.

Implemented File Length renaming token.

Implemented Filename renaming token.

Slight error message cleanup.

Implemented logic to catch unknown renaming token types. ...

Slight edits to token-related error messages.

Implemented /`cmd`/ command execution renaming tokens.

Implemented actual renaming token substitution logic. ...

Implemented /$ENVVAR/ renaming token support.

Added code to __ResolveRenameTokens() to detect renaming tokens in a string, determine their contents, and flag missing delimiters.

Cosmetic cleanup in preparation for rename token processing. ...

Changed regex processing to use match.span() rather than match.start() and match.end().

Consolidated all test mode reporting down into __RenameIt() so that -t will also show any required backup operations.

Fixed a bug that occured when multiple renames iterated over the same filename.

First cut at regex-based matching. ...

-E option removed.  All ErrorMsg calls terminate program immediately now.

Added more bounds checking for individual replacement instance values.

Changed renaming logic to only rename the instances specified on the command line via -i.

Changed -i parsing logic to look for python-style indexes or slice ranges.

Began implementing new logic for selecting replacement "instances". ...

This means -G and -g are no longer necessary.

Changed Rename() to ProcessRenameRequests(). ...

Got rid of the whole name/ext/all target paradigm, thereby eliminating -a, -b, -e, and -L options.

Simplified test mode reporting to only show top level renames and not any consequence backups or skips. ...

Implemented live file renaming.

Moved checks for existing targets from Rename() to RenameIt(). ...

Made check for existing target recursive so existing backups would get backed up.
Implemented min/max new filename length enforcement.
Restructured Rename() so it didn't have to iterate twice over the work queue.

Began restructuring Rename() and added a new supporting RenameIt() method.

Added -P option to allow user to specify their own escape character.

Cleaned up and added more forced renaming logic. ...

Changed -l to -L.
Added framework for -P, to change the default escape string.
Added check to disallow an null string as an argument to -L, -P, -R, and -S.