[Tcllib-devel] FYI new modules and packages ...

[Andreas K. <and...@ac...>]

Two packages enabling us to write multi-file operations without having to
redo globs and foreach loops over and over again. A core package which
provides this functionality as objects, and a package which provides the
same as a single command (with a standard singleton object underneath).

Example:

	fileutil::multi move the * from /sources to /scratch except for *.html

More structure:

	fileutil::multi \
		move \
		the * \
		from /sources \
		to /scratch \
		except \
			for *.html

Or, less readable, still valid

	fileutil::multi \
		to   /scratch  \
		from /sources  \
		move           \
		exclude *.html \
		the *

The first package which had this type of specification was 'treeql', also in
Tcllib, to select nodes in a tree based on relationships and attributes.

	q query root children get data

The interpreter mechanism underlying 'treeql's implementation was
generalized a bit and put into its own module and package, 'wip', the 'word
interpreter'. 'fileutil::multi' is the first user of this re-packaged
system.


Ideas for fileutil::multi I haven't done yet:

*	recursive operation
*	change file attributes, like permissions
*	extract/save/ the set of files the last command operated on.
*	inject/load a set of files to operate on

A multi-rename like 'rename *.c *.cc' would be interesting, however I am not
sure yet how to specify that (the example to the left would semi-require to
parse the glob pattern). OTOH, the example is only a change of the file
extension, and that we should be able to specify and do. Hm ...

	fileutil::multi \
		replace_extension_of the *.c in /wherever except for foo* with CC

--
	Andreas Kupries <and...@Ac...>
	Developer @ http://www.ActiveState.com
	Tel: +1 778-786-1122