of dos-codepage-setup.
(cjk-codepages-alist): New variable, an alist of Far-Eastern
codepages for which there's no need to set up cpNNN coding
systems.
(dos-codepage-setup): Support Far-Eastern DOS terminals.
syntax table and bind unibyte-display-via-language-environment
here, rather than at top level, so that resetting to unibyte in
.emacs works as expected.
alist used to display characters for which there's no glyphs in
the current codepage.
(IT-display-table-setup): New function, sets up the DOS terminal
for a given codepage.
(dos-codepage-setup): New function, sets up the MULE environment
for the current value of dos-codepage.
(top-level if): In the multibyte mode, turn on
unibyte-display-via-language-environment. In the unibyte mode,
set up the special syntax tables to map lower- to upper case and
back.
