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koi8rxterm revision 1.1.1.3 
      1 #!/bin/sh
      2 # $XTermId: koi8rxterm,v 1.6 2021/01/27 01:35:34 tom Exp $
      3 # -----------------------------------------------------------------------------
      4 # this file is part of xterm
      5 #
      6 # Copyright 2007,2021 by Thomas E. Dickey
      7 # 
      8 #                         All Rights Reserved
      9 # 
     10 # Permission is hereby granted, free of charge, to any person obtaining a
     11 # copy of this software and associated documentation files (the
     12 # "Software"), to deal in the Software without restriction, including
     13 # without limitation the rights to use, copy, modify, merge, publish,
     14 # distribute, sublicense, and/or sell copies of the Software, and to
     15 # permit persons to whom the Software is furnished to do so, subject to
     16 # the following conditions:
     17 # 
     18 # The above copyright notice and this permission notice shall be included
     19 # in all copies or substantial portions of the Software.
     20 # 
     21 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
     22 # OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     23 # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
     24 # IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY
     25 # CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
     26 # TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
     27 # SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     28 # 
     29 # Except as contained in this notice, the name(s) of the above copyright
     30 # holders shall not be used in advertising or otherwise to promote the
     31 # sale, use or other dealings in this Software without prior written
     32 # authorization.
     33 # -----------------------------------------------------------------------------
     34 # This is a wrapper script to set up xterm with a KOI8-R locale; based on
     35 # uxterm by Branden Robinson.
     36 
     37 whoami=koi8rxterm
     38 
     39 : "${XTERM_PROGRAM=xterm}"
     40 
     41 # Check if there is a workable locale program.  If there is not, we will read
     42 # something via the standard error.  Ignore whatever is written to the
     43 # standard output.
     44 locale=`sh -c "LC_ALL=C LC_CTYPE=C LANG=C locale >/dev/null" 2>&1`
     45 found=no
     46 
     47 # Check for -version and -help options, to provide a simple return without
     48 # requiring the program to create a window:
     49 if test $# = 1
     50 then
     51 	case $1 in
     52 	-v|-ver*|-h|-he*)
     53 		$XTERM_PROGRAM "$@"
     54 		exit $?
     55 		;;
     56 	esac
     57 fi
     58 
     59 # Check environment variables that xterm does, in the same order:
     60 for name in LC_ALL LC_CTYPE LANG
     61 do
     62 	eval 'value=$'$name
     63 	if test -n "$value" ; then
     64 		case $value in
     65 		*.koi8r|*.KOI8R|*.koi8-r|*.KOI8-R)
     66 			found=yes
     67 			;;
     68 		*.koi8r@*|*.KOI8R@*|*.koi8-r@*|*.KOI8-R*)
     69 			found=yes
     70 			;;
     71 		*)
     72 			# The user may not have configured his or her
     73 			# locale; try to muddle through anyway.
     74 			value=ru_RU.KOI8-R
     75 			;;
     76 		esac
     77 		break
     78 	fi
     79 done
     80 
     81 # If we didn't find one that uses KOI8-R, modify the safest one.  Not everyone
     82 # has a KOI8-R locale installed (and there appears to be no trivial/portable
     83 # way to determine whether it is, from a shell script).  We could check if the
     84 # user's shell does not reset unknown locale specifiers, but not all shells do.
     85 if test $found != yes ; then
     86 	if test -n "$value" ; then
     87 		value=`echo ${value} |sed -e 's/[.@].*//'`.KOI8-R
     88 	else
     89 		name="LC_CTYPE"
     90 		value="ru_RU.KOI8-R"
     91 	fi
     92 	eval save=\$${name}
     93 	eval ${name}=${value}
     94 	eval export ${name}
     95 	if test -z "$locale" ; then
     96 		# The 'locale' program tries to do a sanity check.
     97 		check=`sh -c "locale >/dev/null" 2>&1`
     98 		if test -n "$check" ; then
     99 			eval ${name}="${save}"
    100 			eval export ${name}
    101 
    102 			echo "$whoami tried to use locale $value by setting \$$name" >&2
    103 			xmessage -file - <<EOF
    104 $whoami tried unsuccessfully to use locale $value
    105 by setting \$$name to "${value}".
    106 EOF
    107 			exit 1
    108 		fi
    109 	fi
    110 fi
    111 
    112 # for testing:
    113 #test -f ./xterm && XTERM_PROGRAM=./xterm
    114 
    115 exec "$XTERM_PROGRAM" -class KOI8RXTerm -title "$whoami" -k8 "$@"
    116