I recently needed to use a few (slightly) non-standard encodings in a tclkit and wondered how I can register them at runtime. The solution that I eventually found was to copy the '''*.enc''' file into the ''encoding'' subdir of $tcl_library, like this:

 file copy shiftjis.enc [file join $tcl_library encoding]

For '''tclkit'''s the $tcl_library directory is a virtual one (in memory), so it's ok to copy files into it.  They aren't saved on disk.

The '''[encoding]''' man page might lead you to believe it would be enough to just append ''my-encodings-dir'' to the ''tcl_libPath'' variable but that doesn't work because the variable is set at startup time and never re-read.  You ''could'' change the library path with C function calls.

Couldn't one have an encoding subcommand for this task, maybe something like "encoding create <name> <channel>" ?

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