minix/commands/ash/mktokens

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2005-04-21 16:53:53 +02:00
#!/bin/sh -
#
# Copyright (c) 1991 The Regents of the University of California.
# All rights reserved.
#
# This code is derived from software contributed to Berkeley by
# Kenneth Almquist.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# 3. All advertising materials mentioning features or use of this software
# must display the following acknowledgement:
# This product includes software developed by the University of
# California, Berkeley and its contributors.
# 4. Neither the name of the University nor the names of its contributors
# may be used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# @(#)mktokens 5.1 (Berkeley) 3/7/91
# All calls to awk removed, because Minix bawk is deficient. (kjb)
# The following is a list of tokens. The second column is nonzero if the
# token marks the end of a list. The third column is the name to print in
# error messages.
cat > /tmp/ka$$ <<\!
TEOF 1 end of file
TNL 0 newline
TSEMI 0 ";"
TBACKGND 0 "&"
TAND 0 "&&"
TOR 0 "||"
TPIPE 0 "|"
TLP 0 "("
TRP 1 ")"
TENDCASE 1 ";;"
TENDBQUOTE 1 "`"
TREDIR 0 redirection
TWORD 0 word
TIF 0 "if"
TTHEN 1 "then"
TELSE 1 "else"
TELIF 1 "elif"
TFI 1 "fi"
TWHILE 0 "while"
TUNTIL 0 "until"
TFOR 0 "for"
TDO 1 "do"
TDONE 1 "done"
TBEGIN 0 "{"
TEND 1 "}"
TCASE 0 "case"
TESAC 1 "esac"
!
nl=`wc -l /tmp/ka$$`
exec > token.def
i=0
while read line
do
set -$- $line
echo "#define $1 $i"
i=`expr $i + 1`
done </tmp/ka$$
echo '
/* Array indicating which tokens mark the end of a list */
const char tokendlist[] = {'
while read line
do
set -$- $line
echo " $2,"
done </tmp/ka$$
echo '};
char *const tokname[] = {'
sed -e 's/"/\\"/g' \
-e 's/[^ ]*[ ][ ]*[^ ]*[ ][ ]*\(.*\)/ "\1",/' \
/tmp/ka$$
echo '};
'
i=0
go=
sed 's/"//g' /tmp/ka$$ |
while read line
do
set -$- $line
if [ "$1" = TIF ]
then
echo "#define KWDOFFSET $i"
echo
echo "char *const parsekwd[] = {"
go=true
fi
if [ "$go" ]
then
echo " \"$3\","
fi
i=`expr $i + 1`
done
echo ' 0
};'
rm /tmp/ka$$