kconfigpp: Initial implementation

1 files changed, 54 insertions, 0 deletions

diff --git a/kconfigpp/kconfigpp.sh b/kconfigpp/kconfigpp.sh
new file mode 100644
index 0000000..90b03f1
--- /dev/null
+++ b/kconfigpp/kconfigpp.sh
@@ -0,0 +1,54 @@
+#!/bin/sh
+#
+# Kconfig preprocessor
+#
+# Copyright (C) 2014  Patrick "P. J." McDermott
+#
+# 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, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+set -u
+
+main()
+{
+	if [ ${#} -ne 1 ]; then
+		usage >&2
+		exit 1
+	fi
+
+	parse "${1}"
+}
+
+usage()
+{
+	printf 'Usage: %s <kconfig-file>\n' "${0}"
+}
+
+parse()
+{
+	local file="${1}"
+	local line=
+
+	while IFS='' read line; do
+		if [ "x${line}" != "x${line#source}" ]; then
+			line="$(printf '%s' "${line}" | \
+				sed 's/^source[ \t][ \t]*"*\([^"]*\).*$/\1/')"
+			parse "${line}"
+		else
+			printf '%s\n' "${line}"
+		fi
+	done <"${file}"
+}
+
+main "${@}"