initial population

1 files changed, 198 insertions, 0 deletions

diff --git a/bin/sh/mkoptions.sh b/bin/sh/mkoptions.sh
new file mode 100644
index 0000000..aecb6df
--- /dev/null
+++ b/bin/sh/mkoptions.sh
@@ -0,0 +1,198 @@
+#! /bin/sh
+
+# $NetBSD: mkoptions.sh,v 1.5 2017/11/15 09:21:19 kre Exp $
+
+#
+# It would be more sensible to generate 2 .h files, one which
+# is for everyone to use, defines the "variables" and (perhaps) generates
+# the externs (though they could just be explicit in options.h)
+# and one just for options.c which generates the initialisation.
+#
+# But then I'd have to deal with making the Makefile handle that properly...
+# (this is simpler there, and it just means a bit more sh compile time.)
+
+set -f
+IFS=' 	'	# blank, tab (no newline)
+
+IF="$1"
+OF="${3+$3/}$2"
+
+E_FILE=$(${MKTEMP:-mktemp} -t MKO.E.$$)
+O_FILE=$(${MKTEMP:-mktemp} -t MKO.O.$$)
+trap 'rm -f "${E_FILE}" "${O_FILE}"' EXIT
+
+exec 5> "${E_FILE}"
+exec 6> "${O_FILE}"
+
+{
+	printf '/*\n * File automatically generated by %s.\n' "$0"
+	printf ' * Do not edit, do not add to cvs.\n'
+	printf ' */\n\n'
+
+	printf '#ifdef DEFINE_OPTIONS\n'
+	printf 'struct optent optlist[] = {\n'
+} >"${OF}"
+
+FIRST=true
+
+${SED:-sed} <"${IF}"			\
+	-e '/^$/d'			\
+	-e '/^#/d'			\
+	-e '/^[ 	]*\//d'		\
+	-e '/^[ 	]*\*/d'		\
+	-e '/^[ 	]*;/d'			|
+sort -b -k2,2f -k2,2 < "${IF}"			|
+while read line
+do
+	# Look for comments in various styles, and ignore them
+	# (these should generally be already removed by sed above)
+
+	case "${line}" in
+	'')	continue;;
+	/*)	continue;;
+	\**)	continue;;
+	\;*)	continue;;
+	\#*)	continue;;
+	esac
+
+	case "${line}" in
+	*'#if'*)
+		COND="${line#*#}"
+		COND="#${COND%%#*}"
+		;;
+	*)
+		COND=
+		;;
+	esac
+	set -- ${line%%[ 	]#*}
+
+	var="$1" name="$2"
+
+	case "${var}" in
+	('' | [!A-Za-z_]* | *[!A-Za-z0-9_]*)
+		printf >&2 "Bad var name: '%s'\\n" "${var}"
+		# exit 1
+		continue	# just ignore it for now
+	esac
+
+	case "${name}" in
+	?) 	set -- ${var} '' $name $3 $4; name= ;;
+	esac
+
+	chr="$3" set="$4" dflt="$5"
+
+	case "${chr}" in
+	-)	chr= set= dflt="$4";;
+	''|?)	;;
+	*)	printf >&2 'flag "%s": Not a character\n' "${chr}"; continue;;
+	esac
+
+	# options must have some kind of name, or they are useless...
+	test -z "${name}${chr}" && continue
+
+	case "${set}" in
+	-)	set= ;;
+	[01] | [Oo][Nn] | [Oo][Ff][Ff])	dflt="${set}"; set= ;;
+	''|?)	;;
+	*)	printf >&2 'set "%s": Not a character\n' "${set}"; continue;;
+	esac
+
+	case "${dflt}" in
+	'')		;;
+	[Oo][Nn])	dflt=1;;
+	[Oo][Ff][Ff])	dflt=0;;
+	[01])		;;
+	*)	printf >&2 'default "%s" invalid, use 0 off 1 on\n'; continue;;
+	esac
+
+	# validation complete, now to generate output
+
+	if [ -n "${COND}" ]
+	then
+		printf '%s\n' "${COND}" >&4
+		printf '%s\n' "${COND}" >&5
+		printf '%s\n' "${COND}" >&6
+	fi
+
+	printf '\t_SH_OPT_%s,\n' "${var}" >&5
+
+	if [ -n "${name}" ]
+	then
+		printf '    { "%s", ' "${name}"	>&4
+	else
+		printf '    { 0, '		>&4
+	fi
+
+	if [ -n "${chr}" ]
+	then
+		printf "'%s', " "${chr}"	>&4
+	else
+		chr=
+		printf '0, '			>&4
+	fi
+
+	if [ -n "${set}" ]
+	then
+		printf "'%s', 0, " "${set}"	>&4
+	else
+		printf '0, 0, '			>&4
+	fi
+
+	if [ -n "${dflt}" ]
+	then
+		printf '%s },\n' "${dflt}"	>&4
+	else
+		printf '0 },\n'			>&4
+	fi
+
+	printf '#define %s\toptlist[_SH_OPT_%s].val\n' "${var}" "${var}" >&6
+
+	if [ -n "${COND}" ]
+	then
+		printf '#endif\n' >&4
+		printf '#endif\n' >&5
+		printf '#endif\n' >&6
+	fi
+
+	test -z "${chr}" && continue
+
+	printf '%s _SH_OPT_%s %s\n' "${chr}" "${var}" "${COND}"
+
+done 4>>"${OF}" | sort -t' ' -k1,1f -k1,1 | while read chr index COND
+do
+	if $FIRST
+	then
+		printf '    { 0, 0, 0, 0, 0 }\n};\n'
+		printf '#endif\n\n'
+
+		printf 'enum shell_opt_names {\n'
+		cat "${E_FILE}"
+		printf '};\n\n'
+
+		printf '#ifdef DEFINE_OPTIONS\n'
+		printf 'const unsigned char optorder[] = {\n'
+		FIRST=false
+	fi
+	[ -n "${COND}" ] && printf '%s\n' "${COND}"
+	printf '\t%s,\n' "${index}"
+	[ -n "${COND}" ] && printf '#endif\n'
+
+done >>"${OF}"
+
+{
+	printf '};\n\n'
+	printf '#define NOPTS (sizeof optlist / sizeof optlist[0] - 1)\n'
+	printf 'int sizeof_optlist = sizeof optlist;\n\n'
+	printf	\
+	   'const int option_flags = (sizeof optorder / sizeof optorder[0]);\n'
+	printf '\n#else\n\n'
+	printf 'extern struct optent optlist[];\n'
+	printf 'extern int sizeof_optlist;\n'
+	printf 'extern const unsigned char optorder[];\n'
+	printf 'extern const int option_flags;\n'
+	printf '\n#endif\n\n'
+
+	cat "${O_FILE}"
+} >> "${OF}"
+
+exit 0