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|
#!/bin/sh
#
# enumstr.sh - a tool generating a function mapping enumerator to its
# string representation
#
# Copyright (C) 2019 Masatake YAMATO
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# Usage:
#
# ./enumstr.sh <input-file> <enum-name> <funname> [PREFIX_FOR_TRIMMING] [--use-lower-bits-as-is]
#
# Example:
#
# bash ./misc/enumstr.sh parsers/jscript.c eTokenType tokenTypeName
#
column_width=20
INPUT_FILE=$1
ENUM_NAME=$2
FUNNAME=$3
shift 3
print_usage()
{
echo Usage:
echo
echo " $0 <input-file> <enum-name> <funname> [PREFIX_FOR_TRIMMING] [OPTIONS]"
echo " $0 --help|-h"
echo
echo Options:
echo
echo " --use-lower-bits-as-is"
echo " --extern"
echo
echo Example:
echo
echo ' $ bash ./misc/enumstr.sh parsers/jscript.c eTokenType tokenTypeName'
exit $1
}
if [ -z "$INPUT_FILE" ] || [ -z "$ENUM_NAME" ] || [ -z "$FUNNAME" ] || \
[ "$INPUT_FILE" = '-h' ] || [ "$ENUM_NAME" = '-h' ] || [ "$FUNNAME" = '-h' ] || \
[ "$INPUT_FILE" = '--help' ] || [ "$ENUM_NAME" = '--help' ] || [ "$FUNNAME" = '--help' ]; then
print_usage 1 1>&2
fi
USE_LOWER_BITS_AS_IS=
SCOPE='static'
while [ $# -gt 0 ]; do
case "$1" in
--help|-h)
print_usage 0
;;
--use-lower-bits-as-is)
USE_LOWER_BITS_AS_IS=$1
shift 1
;;
--extern)
SCOPE=extern
shift 1
;;
-*)
echo "Unknown option: $1" 1>&2
exit 1
;;
*)
PREFIX_FOR_TRIMMING=$1
shift 1
;;
esac
done
printf '%s const char *'"%s"'(enum '%s' e)\n' "$SCOPE" "$FUNNAME" "$ENUM_NAME"
printf '{ /* Generated by misc/enumstr.sh with cmdline:\n'
echo " $0 $INPUT_FILE $ENUM_NAME $FUNNAME $PREFIX_FOR_TRIMMING $USE_LOWER_BITS_AS_IS */"
echo ' switch (e)'
echo ' {'
./ctags --quiet --options=NONE --sort=no -o - --languages=C --kinds-C=e --map-C=+.h -x --_xformat="%N enum:%s" $INPUT_FILE | grep $ENUM_NAME | while read N S; do
n=$N
if [ -n "$PREFIX_FOR_TRIMMING" ]; then
n=${N#$PREFIX_FOR_TRIMMING}
fi
printf " case %${column_width}s: return %s;\n" "$N" "\"$n\""
done
if [ -n "$USE_LOWER_BITS_AS_IS" ]; then
printf ' default: %'"$((${column_width} + 3))s;\n" "break"
else
printf ' default: %'"$((${column_width} - 3))s return %s;\n" ' ' "\"UNKNOWN\""
fi
echo ' }'
if [ -n "$USE_LOWER_BITS_AS_IS" ]; then
echo ' static char buf[3];'
echo ' if (isprint (e))'
echo ' {'
echo ' buf[0] = e;'
echo " buf[1] = '\0';"
echo ' }'
echo " else if (e == '\\n')"
echo ' {'
echo " buf[0] = '\\\';"
echo " buf[1] = 'n';"
echo " buf[2] = '\0';"
echo ' }'
echo ' else'
echo ' {'
echo " buf[0] = '\0';"
echo ' }'
echo ' return buf;'
fi
echo '}'
|
