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      1 #! /bin/sh
      2 #	$NetBSD: msg_xlat.sh,v 1.6 2021/10/11 18:46:34 rillig Exp $
      3 
      4 #-
      5 # Copyright (c) 2003 The NetBSD Foundation, Inc.
      6 # All rights reserved.
      7 #
      8 # This code is derived from software contributed to The NetBSD Foundation
      9 # by David Laight.
     10 #
     11 # Redistribution and use in source and binary forms, with or without
     12 # modification, are permitted provided that the following conditions
     13 # are met:
     14 # 1. Redistributions of source code must retain the above copyright
     15 #    notice, this list of conditions and the following disclaimer.
     16 # 2. Redistributions in binary form must reproduce the above copyright
     17 #    notice, this list of conditions and the following disclaimer in the
     18 #    documentation and/or other materials provided with the distribution.
     19 #
     20 # THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     21 # ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     22 # TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     23 # PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     24 # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     25 # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     26 # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     27 # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     28 # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     29 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     30 # POSSIBILITY OF SUCH DAMAGE.
     31 #
     32 
     33 PROG=$(basename "$0")
     34 usage()
     35 {
     36 	echo "Usage: $PROG [-ci] [-d msg_defs.h] [-f fmt_count]" >&2
     37 	exit 1
     38 }
     39 
     40 error()
     41 {
     42 	echo "$PROG: ERROR $@" >&2
     43 }
     44 
     45 IGNORE_MISSING_TRANSLATIONS=false
     46 count_fmtargs=false
     47 msg_defs=msg_defs.h
     48 
     49 while getopts cd:f:i f
     50 do
     51 	case "$f" in
     52 	c) count_fmtargs=true;;
     53 	d) msg_defs=$OPTARG;;
     54 	f) fmt_count=$OPTARG;;
     55 	i) IGNORE_MISSING_TRANSLATIONS=true;;
     56 	*) usage;;
     57 	esac
     58 done
     59 shift $(($OPTIND - 1))
     60 if [ "$#" -ne 0 ]; then usage; fi
     61 
     62 nl='
     63 '
     64 msg_long='((msg)(long)'
     65 close_paren=')'
     66 open_brace='{'
     67 close_brace='}'
     68 slash=/
     69 
     70 rval=0
     71 
     72 # save stdin while we read the other files
     73 exec 3<&0
     74 
     75 # Read existing list of format arg counts
     76 if [ -n "$fmt_count" ]; then
     77 	exec <$fmt_count || exit 2
     78 	while read name count
     79 	do
     80 		eval count_$name=\$count
     81 	done
     82 fi
     83 
     84 # Read header file and set up map of message names to numbers
     85 
     86 exec <$msg_defs || exit 2
     87 
     88 while read define MSG_name number rest
     89 do
     90 	if [ -z "$number" ] || [ -n "$rest" ]; then continue; fi
     91 	if [ "$define" != "#define" ]; then continue; fi
     92 
     93 	name="${MSG_name#MSG_}"
     94 	if [ "$name" = "${MSG_name}" ]; then continue; fi
     95 
     96 	msg_number="${number#$msg_long}"
     97 	if [ "$msg_number" = "$number" ]; then continue; fi
     98 	msg_number="${msg_number%$close_paren}"
     99 
    100 	eval $MSG_name=$msg_number
    101 	eval MSGNUM_$msg_number=\$MSG_name
    102 	# eval echo \$$MSG_name \$MSGNUM_$msg_number
    103 done
    104 
    105 last_msg_number="$msg_number"
    106 
    107 # Read message definition file and set up map of numbers to strings
    108 
    109 exec <&3 3<&-
    110 
    111 name=
    112 msg=
    113 while
    114 	IFS=
    115 	read -r line
    116 do
    117 	if [ -z "$name" ]; then
    118 		IFS=" 	"
    119 		set -- $line
    120 		if [ "$1" != message ]; then continue; fi
    121 		name="$2"
    122 		eval number=\$MSG_$name
    123 		if [ -z "$number" ]; then
    124 			error "unknown message \"$name\""
    125 			$IGNORE_MISSING_TRANSLATIONS || rval=1
    126 			number=unknown
    127 		fi
    128 		l=${line#*$open_brace}
    129 		if [ "$l" = "$line" ]; then continue; fi
    130 		line="{$l"
    131 	fi
    132 	if [ -z "$msg" ]; then
    133 		l=${line#$open_brace}
    134 		if [ "$l" = "$line" ]; then continue; fi
    135 		msg="$line"
    136 	else
    137 		msg="$msg$nl$line"
    138 	fi
    139 	m=${msg%$close_brace}
    140 	if [ "$m" = "$msg" ]; then
    141 		# Allow <tab>*/* comment */ (eg XXX translate)
    142 		m=${msg%%$close_brace*$slash[*]*[*]$slash}
    143 		if [ "$m" = "$msg" ]; then continue; fi
    144 	fi
    145 	# We need the %b to expand the \n that exist in the message file
    146 	msg=$(printf %bz "${m#$open_brace}")
    147 	msg=${msg%z}
    148 	eval old=\"\$MSGTEXT_$number\"
    149 	if [ -n "$old" ] &&  [ "$number" != unknown ]; then
    150 		error "Two translations for message \"$name\""
    151 		$IGNORE_MISSING_TRANSLATIONS || rval=1
    152 	fi
    153 	eval MSGTEXT_$number=\"\${msg}\"
    154 	# echo $number $msg
    155 	sv_name="$name"
    156 	sv_msg="$msg"
    157 	name=
    158 	msg=
    159 	if ! $count_fmtargs && [ -z "$fmt_count" ]; then continue; fi
    160 
    161 	IFS=%
    162 	set -- $sv_msg
    163 
    164 	# For our purposes, empty messages are the same as words without %
    165 	if [ $# -eq 0 ]; then set -- x; fi
    166 
    167 	if $count_fmtargs; then
    168 		echo $number $#
    169 		continue
    170 	fi
    171 	eval count=\${count_$number:-unknown}
    172 	if [ "$count" -ne $# ]; then
    173 		error "Wrong number of format specifiers in \"$sv_name\", got $#, expected $count"
    174 		$IGNORE_MISSING_TRANSLATIONS || rval=1
    175 	fi
    176 done
    177 unset IFS
    178 
    179 if $count_fmtargs; then exit $rval; fi
    180 
    181 # Output the total number of messages and the offset of each in the file.
    182 # Use ascii numbers because generating target-ordered binary numbers
    183 # is just a smidgen tricky in the shell.
    184 
    185 offset=$(( 8 + $last_msg_number * 8 + 8 ))
    186 printf 'MSGTXTS\0%-7d\0' $last_msg_number
    187 
    188 msgnum=0
    189 while
    190 	msgnum=$(( $msgnum + 1 ))
    191 	[ "$msgnum" -le "$last_msg_number" ]
    192 do
    193 	eval msg=\${MSGTEXT_$msgnum}
    194 	if [ -z "$msg" ]; then
    195 		eval error "No translation for message \$MSGNUM_$msgnum"
    196 		printf '%-7d\0' 0
    197 		$IGNORE_MISSING_TRANSLATIONS || rval=1
    198 		continue
    199 	fi
    200 	printf '%-7d\0' $offset
    201 	offset=$(( $offset + ${#msg} + 1 ))
    202 done
    203 
    204 # Finally output and null terminate the messages.
    205 
    206 msgnum=0
    207 while
    208 	msgnum=$(( $msgnum + 1 ))
    209 	[ "$msgnum" -le "$last_msg_number" ]
    210 do
    211 	eval msg=\${MSGTEXT_$msgnum}
    212 	if [ -z "$msg" ]; then continue; fi
    213 	printf '%s\0' "$msg"
    214 done
    215 
    216 exit $rval
    217