🚀 go-pugleaf

In article <C1Iy9K.2r8p@austin.ibm.com> tbates@austin.ibm.com () writes:

   In article <EMCOOP.93Jan25124421@bcars148.bnr.ca>, emcoop@bnr.ca (hume smith) writes:
   > In article <C1EzDw.FtF@austin.ibm.com> tbates@austin.ibm.com (Tom Bates) writes:
   > 
   >    The advantage to using [:upper:] and [:lower:] instead of [A-Z] and [a-z] is
   >    locale support.  Not everyone uses ASCII and US English.
   > 
   > here's a shocker: not all tr's have that notation.  must be an IBMism :-)

   Here's a shocker, IBM supports it because it is part of AT LEAST the XPG4
   standard. :)

here's a shoker: it's actually a good idea. :-)  ASCII and EBCDIC are, after all, not
everything.

question: tr was often used to implement the usenet rot13:
	tr [A-Za-z] [N-ZA-Mn-za-m]
is there a way of doing that with this portable notation?  there's some way
of specifying a subrange, surely.

do we need an alt.lang.tr group?  :-)
--
Hume Smith                                Honour sick and davey cris-cross
hume.smith@acadiau.ca                     McTruloff sentimie
emcoop@bnr.ca                             A parsnip inner pair threes.