1 files changed, 199 insertions, 0 deletions
diff --git a/src/kash/mkinit.sh b/src/kash/mkinit.sh
new file mode 100755
index 0000000..0bf4bed
--- /dev/null
+++ b/src/kash/mkinit.sh
@@ -0,0 +1,199 @@
+#! /bin/sh
+#	$NetBSD: mkinit.sh,v 1.2 2004/06/15 23:09:54 dsl Exp $
+
+# Copyright (c) 2003 The NetBSD Foundation, Inc.
+# All rights reserved.
+#
+# This code is derived from software contributed to The NetBSD Foundation
+# by David Laight.
+#
+# 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. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+
+srcs="$*"
+
+nl='
+'
+openparen='('
+backslash='\'
+
+includes=' "shell.h" "mystring.h" "init.h" '
+defines=
+decles=
+event_init=
+event_reset=
+event_shellproc=
+
+for src in $srcs; do
+	exec <$src
+	decnl="$nl"
+	while IFS=; read -r line; do
+		[ "$line" = x ]
+		case "$line " in
+		INIT["{ 	"]* ) event=init;;
+		RESET["{ 	"]* ) event=reset;;
+		SHELLPROC["{ 	"]* ) event=shellproc;;
+		INCLUDE[\ \	]* )
+			IFS=' 	'
+			set -- $line
+			# ignore duplicates
+			[ "${includes}" != "${includes%* $2 }" ] && continue
+			includes="$includes$2 "
+			continue
+			;;
+		MKINIT\  )
+			# struct declaration
+			decles="$decles$nl"
+			while
+				read -r line
+				decles="${decles}${line}${nl}"
+				[ "$line" != "};" ]
+			do
+				:
+			done
+			decnl="$nl"
+			continue
+			;;
+		MKINIT["{ 	"]* )
+			# strip initialiser
+			def=${line#MKINIT}
+			comment="${def#*;}"
+			def="${def%;$comment}"
+			def="${def%%=*}"
+			def="${def% }"
+			decles="${decles}${decnl}extern${def};${comment}${nl}"
+			decnl=
+			continue
+			;;
+		\#define[\ \	]* )
+			IFS=' 	'
+			set -- $line
+			# Ignore those with arguments
+			[ "$2" = "${2##*$openparen}" ] || continue
+			# and multiline definitions
+			[ "$line" = "${line%$backslash}" ] || continue
+			defines="${defines}#undef  $2${nl}${line}${nl}"
+			continue
+			;;
+		* ) continue;;
+		esac
+		# code for events
+		ev="${nl}      /* from $src: */${nl}      {${nl}"
+		while
+			read -r line
+			[ "$line" != "}" ]
+		do
+			# The C program indented by an extra 6 chars using
+			# tabs then spaces. I need to compare the output :-(
+			indent=6
+			while
+				l=${line#	}
+				[ "$l" != "$line" ]
+			do
+				indent=$(($indent + 8))
+				line="$l"
+			done
+			while
+				l=${line# }
+				[ "$l" != "$line" ]
+			do
+				indent=$(($indent + 1))
+				line="$l"
+			done
+			[ -z "$line" -o "$line" != "${line###}" ] && indent=0
+			while
+				[ $indent -ge 8 ]
+			do
+				ev="$ev	"
+				indent="$(($indent - 8))"
+			done
+			while
+				[ $indent -gt 0 ]
+			do
+				ev="$ev "
+				indent="$(($indent - 1))"
+			done
+			ev="${ev}${line}${nl}"
+		done
+		ev="${ev}      }${nl}"
+		eval event_$event=\"\$event_$event\$ev\"
+	done
+done
+
+exec >init.c.tmp
+
+echo "/*"
+echo " * This file was generated by the mkinit program."
+echo " */"
+echo
+
+IFS=' '
+for f in $includes; do
+	echo "#include $f"
+done
+echo "#include \"shinstance.h\""
+echo "#include \"nodes.h\""
+
+echo
+echo
+echo
+echo "$defines"
+echo
+echo "$decles"
+echo
+echo
+echo "/*"
+echo " * Initialization code."
+echo " */"
+echo
+echo "void"
+echo "init(shinstance *psh) {"
+echo "${event_init%$nl}"
+echo "}"
+echo
+echo
+echo
+echo "/*"
+echo " * This routine is called when an error or an interrupt occurs in an"
+echo " * interactive shell and control is returned to the main command loop."
+echo " */"
+echo
+echo "void"
+echo "reset(shinstance *psh) {"
+echo "${event_reset%$nl}"
+echo "}"
+echo
+echo
+echo
+echo "/*"
+echo " * This routine is called to initialize the shell to run a shell procedure."
+echo " */"
+echo
+echo "void"
+echo "initshellproc(shinstance *psh) {"
+echo "${event_shellproc%$nl}"
+echo "}"
+
+exec >&-
+mv init.c.tmp init.c