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koi8rxterm revision 1.1 
      1 #!/bin/sh
      2 # $XTermId: koi8rxterm,v 1.3 2007/12/30 16:33:06 tom Exp $
      3 # This is a wrapper script to set up xterm with a KOI8-R locale; based on
      4 # uxterm.
      5 
      6 whoami=koi8rxterm
      7 
      8 : ${XTERM_PROGRAM=xterm}
      9 
     10 # Check if there is a workable locale program.  If there is not, we will read
     11 # something via the standard error.  Ignore whatever is written to the
     12 # standard output.
     13 locale=`sh -c "LC_ALL=C LC_CTYPE=C LANG=C locale >/dev/null" 2>&1`
     14 found=no
     15 
     16 # Check for -version and -help options, to provide a simple return without
     17 # requiring the program to create a window:
     18 if test $# = 1
     19 then
     20 	case $1 in
     21 	-v|-ver*|-h|-he*)
     22 		$XTERM_PROGRAM "$@"
     23 		exit $?
     24 		;;
     25 	esac
     26 fi
     27 
     28 # Check environment variables that xterm does, in the same order:
     29 for name in LC_ALL LC_CTYPE LANG
     30 do
     31 	eval 'value=$'$name
     32 	if test -n "$value" ; then
     33 		case $value in
     34 		*.koi8r|*.KOI8R|*.koi8-r|*.KOI8-R)
     35 			found=yes
     36 			;;
     37 		*.koi8r@*|*.KOI8R@*|*.koi8-r@*|*.KOI8-R*)
     38 			found=yes
     39 			;;
     40 		*)
     41 			# The user may not have configured his or her
     42 			# locale; try to muddle through anyway.
     43 			value=ru_RU.KOI8-R
     44 			;;
     45 		esac
     46 		break
     47 	fi
     48 done
     49 
     50 # If we didn't find one that uses KOI8-R, modify the safest one.  Not everyone
     51 # has a KOI8-R locale installed (and there appears to be no trivial/portable
     52 # way to determine whether it is, from a shell script).  We could check if the
     53 # user's shell does not reset unknown locale specifiers, but not all shells do.
     54 if test $found != yes ; then
     55 	if test -n "$value" ; then
     56 		value=`echo ${value} |sed -e 's/[.@].*//'`.KOI8-R
     57 	else
     58 		name="LC_CTYPE"
     59 		value="ru_RU.KOI8-R"
     60 	fi
     61 	eval save=\$${name}
     62 	eval ${name}=${value}
     63 	eval export ${name}
     64 	if test -z "$locale" ; then
     65 		# The 'locale' program tries to do a sanity check.
     66 		check=`sh -c "locale >/dev/null" 2>&1`
     67 		if test -n "$check" ; then
     68 			eval ${name}=${save}
     69 			eval export ${name}
     70 
     71 			echo "$whoami tried to use locale $value by setting \$$name" >&2
     72 			xmessage -file - <<EOF
     73 $whoami tried unsuccessfully to use locale $value
     74 by setting \$$name to "${value}".
     75 EOF
     76 			exit 1
     77 		fi
     78 	fi
     79 fi
     80 
     81 # for testing:
     82 #test -f ./xterm && XTERM_PROGRAM=./xterm
     83 
     84 exec $XTERM_PROGRAM -class KOI8RXTerm -title $whoami -k8 "$@"
     85